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OFFICERS Pr,s;dent John F. McMahon AJfred, N. Y. Prlsitltnt-Eilct .;..:)iiloB. Bielley >lrf~co, Mo .<..Yk,-l'rtsitlents Wayne A. Deringer "/;,';tdi!waukee, Wise. )!'f.Clarence H. Hahner '\i~~;"w""ahs iDlton, D. C. -;,}~,~, $. Nordyke : ',:' Carnegie, Pa. .. .~T.it.;U"," ;.,,~,jAndrew Pereny ':~:?lu'mbus, Ohio ,. I S,crtllSry ISn" Editor , . lea S. Pearce '::;.:Columbus, Ohio Com",;II" on Pub/iclSlions C. H. Hahner , ClJlS;"",an W.1l. Kerr ". J. O. Everhart '. It. P. McNamara . C. S. Pearce (IX officio) '. i.:M.".,;", Eilhor ::!:~Jamea S. Welch ';i!J;torial Assistants .:; 'Bmmollne R. Jamra ....),~~Charlotte B. Burgess "AtlVtrlisi"l MlSnlSl" , ';', f Arthur S. Koschny "Eastern ]UprlsenllSliot . WWiam T. Mohrman, Jr. 437 Fifth Ave., New York 16, N. Y. Phone: Murray Hill 5-5633 . Midwlst RlprtsentlStiot . James K. Mlllhouse . ",- . 5935 West Montrose Ave. Chicago 34, Ill. Phone: Mulberry 5.0070 ' Offices , "ut;Ot, t";~orial, ISn." ISdotr. "" ,: 4055 North HIgh St., .Columbus 14, Ohio. " Phone AMh':rst 8.8645 A. T. & T. Teletype CLS93 Publication: 20th & North. ampton Sts., Easton, Pa. PLAINTIFF'S EXHIBIT I CCAEMR-5-11158 er~mlC~ ulletin October, 1957 Papers Regenerator EfAciency and Basic Brick in a Glass Furnace... 381 L. F. Robertson, Frank V. Halvonik, and John J. McMackin Sizing BaTIOa Using Laboratory-SiuSedimentation Tubes of a New Design. . . . 385 Kenneth G. Skinner and Marion J. Riley Articles Ground Broken for Harbison-Walker Research Center. . . . 389 New Award Established for Ceramists... . . . . . . . . . . . . 390 PEl Shop Practice Forum. . . . . . . . . . . . . . . . . . . . . . . 392 Eugene C. Sullivan of Corning. . . . . . . . . . . . . . . 393 Nominations for OfAcers .............. , . . . . . . . 400 Roster Membership Roster. . . . . . . . . . . . . . . . . . . . . . . . 401 Institute Roster.. . . . . . . . . . . . . . . . . . . . . . . R-129 Departments In Print for Ceramists. 2 Mailbox for Readers. 5,8 Meetings Calendar, . 10 Consulting Services .. R-124 Men and Positions ... 16, 17 Advertisers' Index, .. 18 Personal Notes" , , , , Authors .. , . , , . , ... Names,. , , . , . , . , . , . Schools .. , , , , , , .... Out of the Kiln, , . , , Necrology, ' , ... , , , 15 394 396 398 399 399 ~~ - - - - - - - - - - - - -_ _d~ Ground Broken for Harbison-Walker Research Center A center for research in refractories is being u a '.lHarbison-\\'alker Refractories Co., n cre site south of Pittsburgh, Pa. ond E. Birch, director of research, escribed the million-dollar project as bring- 19 together all of the company's research ctivities, with ample room for expansion. The new facility is to be in two structures, mnected by a reception area. The Fine nstruments Building will house laboratories Jr studying chemical, mineralogical, and hysical properties of refractory materials, 'ith X-ray, spectrographic. microscopic, and hotographic equipment. It will also have he offices, library, and conference rooms. In the Pilot Plant Building will be the pecialties laboratories, materials storage, nd other functions. Crushing, grinding, izing, blending, forming, drying, and firing quipment will be of a size for processing in m.aIl tonnage lots. Kilns will have atmos- ,berlc controls to provide for studying com- :tercial refractories under the varied condi- ions found in many industries. Harbison-Walker is expanding into new efractory product fields, according to Earl ~ :Garber, company president, naming in ,articular mullite, silicon carbide, and zircon. HarbisonWalker officials use a trador to break ground for the company's new research center Left to right: Donald F. Stock, R. P. Snyder, Earl A. Garber, and Raymond E. Birch Ie. also said that the company's new facili- ies in several foreign countries have made available addi- trained in ceramics, chemistry, physics, and metallurgy, with ional types of raw materials of considerable promise. many technical assistants. Edwin Ruh is assistant director l a'or products of the Harbison-Walker plants are refrac- o d insulation for industrial furnaces and chemical , g. In addition they manufacture molding media or aves ent materials for shell molding and precision casting, of research and Donald F. Stock is laboratory manager. S.C.P.I. to Meet at Greenbrier .nd magnesium chemicals. Research is to be intensified in efractory materials for rocket launching sites and jet airraft maintenance areas. The field of nuclear energy is also o be explored. The Structural Clay Products Institute will hold its annual convention November 11-13 at the Greenbrier Hotel, White Sulphur Springs, W. Va. Registration and a get-acquainted coffee and doughnut session are scheduled for Monday morn- Upon completion of the new research facility next year the ing. Business sessions will be held Monday afternoon and Jresent Hays Research Laboratory will be given over entirely o the quality control d~partment. both Tuesday morning and afternoon. The annual president's reception and banquet is set for Tuesday evening. Mr. Birch said that their research organization will be ex- Wednesday will be open so that members may take advantage landed to about 100 persons, placing its reliance on engineers of the recreational facilities of the hotel. In addition to regular convention sessions, there will be an election of officers and meetings of the board of S.C.P.I. and of two of S.C.P.L's affiliates, the Facing Tile Institute, and the Architectural Terra Cotta Institute. There will also be a meeting of the board of management of the Structural Clay Products Research Foundation as well as the National Asso- ciation of Distributors & Dealers of Structural Clay Products. "dllhict's sketch of the HarbisonWalker Research Center. In the fore ~ound b the Fine Instruments Building, with a reception area connecting to the Pilot Plant Building beyond VOt. 36. No. 10 (Hl.-J;) Directors Elect Coming Officers George D. Macbeth, retiring vice-president and controller of Coming Glass Works, was elected an honorary vicepresident at a recent meeting of the company's Board of Directors. . He will continue to serve on the board of directors and the executive committee. Other officers named at the meeting include Charles D. LaFollette who was elected to the newly created office of financial vice-president; Thomas \\'aaland, treasurer; John L. Ward, controller; and Robert W. Foster, assistant con- troller. Norman J. Yang was elected vice-president and director of industrial relations. Richard M. Clifford was appointed manufacturing manager of the Electrical Products Di\;sion. 389 Merr-bership Roster The American Ceramic Society Roster of members is published only for the use of members of The American C4K"amic Society. Listings are in alphabetical der. A separate Roster for the National Institute of Ceramic Engineers, showing grades of membership, is on pages R-129 to R-133 this issue. New members received too late to be included are listed in the Addenda on page R-127. These listings give the member's preferred mailing address. Where this is not his business address his company connection is shown parentheses. Divisions and other Society affiliations are indicated in parentheses following each name, in accordance with the code ven below. The absence of any such designation indicates that the member is from outside the united States or a student member, :ither of which has Division affiliation. B-Basic Science Division D-Design DiVision E-Enamel Division G-Class Division M-Materialsand Equipment Division R-Refractories Division S-Structural Clay Products Division W-White Wares Division X-No Division affiliation F-Fe1low of The American Ceramic Society J-JuniorMember I-National Institute of Ceramic Engineers A ,BBEY, R. G. (G) Geaeral Refractories Co. 1520 Locust St., Philadelphia 2, Pa. .BBOTT, Gordon H. , Rock Eaame1 (Pty.) Ltd., Box 77 : Industria TVL "\ UDioa of'South Africa .BBOTT, Russell W. (D) .~ Libbey-Owens-Ford Glass Co. "'.1701 E. Broadway, Toledo 5, Ohio .BBOTT, William F. (B) . "502 W. Ojai Ave., Ojai, Calif. ,," (Servomechanism, Inc.) .BE, Tosio " 1001, Kami-ikegami-cho, Ota-ku " TokJo, Japan ,?:(Tokyo Shibaura Electric Co., Ltd.) .BIETHY, Lonnie L. (BI) s Instruments, Inc. . Lemmon Ave., Dallas 9, Texas .BI DON POTTERIES, INC. (J. M. Lewis) 801 N. Main St. " Abingdon, Ill. .BRAMS, Marvin E. (W) Sentry Sanitary Corp., Box 427 Mannington, W. Va. ,BRAMSON, Isaac Av. Atlantica 2856, Apto. 403 Rio de Janeiro, Brazil (Klabin Irmaos & Cia.) -BRILLE, A. Villa , San Miguel Brewery, Inc:, 1112 Aviles Manila, Philippines lCCOUNTIUS, Oliver E. (R) .622 W. Alegria Ave. ,'Sierra Madre, Calif. (Aerojet-General Corp.) \CHAUER, L. C. (5) .Natco Corp., East Canton, Ohio \CME BRICK CO. (George Puis) ;" Box 425, Fort Worth, Texas \ C SPARK PLUG DIV., GENERAL MOTORS CORP. (Karl Schwartzwalder) Flint 2, Mich. \DAMS CLAY PRODUCTS CO. (James A. Cunningham) Box 34, Martinsville, Ind. \DAMS, David E., Jr. (W) , 830 Spring St., Latrobe, Pa. (Carborundum Co.) ~AMS, Edward M. (5) ,Murray Tile Co., Inc. Cloverport, Ky. l iD 5, Milton (G) . W. Streicher St., Toledo 8, Ohio " hey-Owens-Ford Glass Co.) , S, P. Bruce (G) .... Coming Glass Works '<. Research and Development 'Coming, N. Y. VOL. 36, No. 10 (1957) ADAMS, Roland H. 2208-B Perry Ave., Austin, Texas ADAMS, S. L. (G) Joseph E. Seagram & Sons, Inc. Seventh St. Rd., Louisville I, Ky. ADAMSTON FLAT GLASS DIV., ROLLAND GLASS CO. Box 631, Clarksburg, W. Va. ADCOCK, Albert S. (WI) American-Standard 40 W. 40th St., New York 18, N. Y. ADCOCK, Lawrence W., Jr. (B) 1547 Empire Rd., Wickliffe, Ohio (Brush Electronics Co.) ADDERLEY, James R. 42 Church St., Brierley Hill S. Stafford, England (E. J. & J. Pearson Ltd.) ADERHOLD, George H. (W) Saxonburg Ceramics, Box 100 Saxonburg, Pa. ADLER, Arthur (R) Alloy Metal Powders, Inc. 238 Eagle St., Brooklyu 22, N. Y. AFFLERBACH, Harry (E) R.R. 4, Frankfort, Ind. (Ingram-Richardson, Inc.) AGARWAL, Gopal Mohan 23 Gran Hatta St., Calcutta 6, India AGARWAL, Shri K. University of Sheffield Dept. of Glass Technology Sheffield 10, England A. G. DER GERRESHEIMER GLASHUTTENWERKE (L. Breuer) Dusseldorf-Gerresheim, Germany AGRON, Albert M. (E) Pfaudler Co., Taylor St., Elyria, Ohio AGUILAR, L. M. (E) Ferro Enamel de Mexico, S. A. Calle Oriente 171, No. 450 Mexico 14, D. F., Mexico AGUILAR, Raul (E) Ferro Enamel de Mexico, S. A. Oriente 171 No. 450 Colonia Aragon, Mexico 14, D. F. AHEARN, V. P. (M) National Industrial Sand Assn. Munsey Bldg., Washington 4, D. C. AKAM, J. W. (S) Natco Clay Products, Ltd Aldershot, Ont., Canada AKMORA:\, Miss Huban 1 Cobankizi Sokak Buyukdere. Istanbul, Turkey AKRON PORCELAIN CO. (F. W. Butler) Akron 14. Ohio ALBERS-SCHOENBERG, Ernst (WF) 13-B-3 Redfield Village Metuchen, N. J. (General Ceramics Corp.) ALBERTALLI, Stephen L. (G) Coming Glass Works, Harrodsburg, Ky. ALBERY. D. F. (SFI) 1433 23rd St. N. W., Canton 9, Ohio (Stark Ceramics, Inc.) ALBON, Derek (R) Saskatchewan Research Council 1400 McIntyre St. Regina, Sask., Canada ALBRECHT, Ernst Keramische Fachschule Hoehr-Grenzhausen/b. Koblenz, Germany ALCOCK, Ronald H . "Ferrum" Espana 402-600, Avellaneda Buenos Aires. Argentina (Ferrum, S. A. de Ceramica y Metalurgia) ALDEN, Charles E. (G) 3427 Heather Downs Blvd. Toledo 14, Ohio (Kimble Glass Co.) ALELUIA, Joao C. F. Av. Araujo E. Silva 59 Aveiro. Portugal (Fabricas Aleluia) ALENlUS, Carl Axel Karhunkatu 28, Karhula, Finland (Foundation for Productivity Research) ALEXANDER,A. E. (W) Buchanan Apts. 8-D ISS E. 47th St., New York 17, N. Y. (Consultant) ALEXANDER, John B. (M) Southwestern Portland Cement Co. 1034 Wilshire Blvd. Los Angeles 17, Calif. ALEXANDER, John M. (MI) 808 Morewood Ave. Pittsburgh 13, Pa. (Swindell-Dressler Corp.) ALGEMENE VERENIGING VOOR De NEDERLANDSE AARDEWERK EN GLASINDUSTRIE (W. J. Bollen) Haagweg 139, Rijswijk, Netherlands ALGER, Ferris E. (G) Old York Rd. New Hope. Bucks Co., Pa. (Polytechnic Research & Development Co.) ALLARDICE, James B. (R) A. P. Green Fire Brick Co. 2004 Clark Bldg.. Pittsburgh 22, Pa. ALLEGHENY LUDLUM STEEL CORP. (Robert W. Limes). Brackenridge, Pa. ALLEN. Alfred W. (RF) Ceramic Engineering Dept. University of lllinois, Urbana, Ill. ALLEN, Ben (G) Corning Glass Works, Corning, N. Y. ALLEN, GERALD L. 1061-E Monroe St., Albany 6, Calif. ROSTER LLEN, Ralph (W) , 597 Crescent Rd .. ~lanstield, Ohio (Ingersoll-Humph ryes Div. BorgWarner Corp.) .LLEN, Richard L. (RlJ E. J. Lavino & Co., Box 365 Newark, Calif. ,_Obert G. (R) G. Allen Co., Box 110 nicville, N. Y. .LLEN, Walter C. (B) Radio Corp. of America Chemical & Physical Lab. 415 S. Fifth St.. Harrison. N. J. .LLEN, Warren W., Jr. (S) Hydraulic-Press Brick Co. South Park, Ohio ,LLIANCE WARE, LTD. (R. E. Strain) Box 550, Vancouver. B. C., Canada .LLIEGRO, Richard \ RJ I 3305 150th St .. Flmhing 54. X. Y. (Norton Co.) .LLIS, Deo G.. Jr. (R) 2947 Elsie :he.. Toledo 13. Ohio (Libbey-Owens-Ford Glass Co.) u.LISON, Adrian G. (R) Battelle Memorial Institute 505 King Ave., Columbus I, Ohio \UMAN, Orin H. (G) Kimble Glass Co. .. Owens-lllinois Technical Center .17OC)N. Westwpod Ave., Toledo I, Ohio J.~.~~~ ~"I,<U-;lIattos 'Dr.; Fremont, Calif. '.{ICr.iltile Co.) \Ll'IIANN, Berton G. (B) ',':16100 Cypress Way, Los Gatos, Calif. ..':'IKaUer Aluminum &: Chemical Corp.) \LTOlf BRICK CO. (Morris P. Hall) ..:SOX 25, Maryland Heights, Mo. ,LTSCHULER, Otto (W) ;271 Hawthorne Ave., Langhorne, Pa. dWenczel Tile Co.) .L1JM~NIUM LIMITED SALES, INC. . ,-'(R.. K. lfathieson) 630 Fifth Ave. York 20, N. Y. UM CO. OF AMERICA , . Bonebrake) 1501 Alcoa Bldg. Pittsburgh 19, Pa. .MERICAN COLLOID CO. (Paul Bechtner) 813 Merchandise Mart, Chicago 54, Ill. .MERICAN CYANAMID CO. (H. C. Milton) 30 Rockefeller Plaza, !\ew York, N. Y. .JIERICAN ENCAUSTIC TILING CO., INC. '(Robert A. Williams, Jr.) 1000 N. Cannon Ave., Lansdale, Pa. ~RICAN GAS ASSOCIATION (C. G. Segeler) 420 Lexington Ave. .~ewYork 17.:N. Y. LlU:RICANLAvA CORP. . (lL A. McGinnis) CIaerokee Blvd. & Mfgrs. Rd. . ~ttanooga 5, Tenn. .JIERICAN NEPHELINE LTD. (H. R.. Deeth) 25 King St. W., Rm. 2530 Toronto, Ont., Canada KERICAN OPTICAL CO. (A. H. Bennett) ... Research Center, Southbridge, Mass. ...ERICAN PORCELAIN ENAMEL CO. (Robert Long, Sr.) 1285 E. Keating Ave. MUskegon 36, Mich. .MERICAN POTASH &: ~HEM:ICAL CORP. (R. M. Curts) ... 9 Park Ave., New York, N. Y. ...ERICAN RADIATOR & DARD SANITARY CORP, _ _ S. Goodman) 834 E. Broadwa)' ville 4, Ky. bft AN SMELTING & _FINING CO. (5, J, Dickinson) South Plainfield, N. J. OL. 36, No, 10 (1957) AMERICAN WINDOW GLASS CO. (A. S. Crandon) 20th Floor Farmers Bank Bldg. Pittsburgh 22, Pa. A~rES, R. N. (RI) 10718 S. Morgan St.,-Chicago 43, Ill. (U. S. Steel Corp.) A~rES, Robert G. (W) 69 Jefferson Ave., Cresskill, N. J. (B. G. Corp.) .-\~DIER~I.-\X, ]. H. (RII R. R. 2. Wexford, Pa. I); orth American 'Refractories Co.) ANCHOR HOCKING GLASS CORP. (William V. Fisher) Lancaster, Ohio AXCIZAR-SORDO, Jorge Laboratorio Quimico Nacional ~linisterio de Minas y Petroleos Apartado 2577, Bogota, Colombia .-\XDERSOX. Da\'id O. . Box 1351. Alfred. ~. Y. .-\XDERSOX, Harlan U . Box 26, ~filford, Utah .-\XDERSOX, Harry L. (RI) Republic Steel Corp. Youngstown I. Ohio :\~DERSON, Herbert H. (G) 21i W. 66th St., N. Kansas City 16, Mo. (Gustin-Bacon Mfg. Co.) AXDERSON, Orson L, (G) Bell Telephone Labs., Murray Hill, N. J. AXDERSON, Raymond H., Jr. Box 2560, Virginia Tech. Sta. Blacksburg, Va. AXDERSON,R. E. (W) Robertson Mfg. Co" Box 848 Trenton 5, N. J. ANDERSON, R. H. (5) Robinson Clay Product Co., Box 545 Dover, Ohio A~'mERSON, Robert E. (W) Iroquois China Co., 2320 Milton Ave. Syracuse 9, N. Y. AXDERSO~, Robert R. (RJ) 185 Cynthia Dr., Pleasant HilI. Calif. (Gladding, McBean & Co.) A~.;oERSON, Rupert C. (W) Valley View, R. R. 10 New Brighton, Pa. (Mayer China Co.) AXDERSON, Scott (G) Anderson Physical Laboratory 609 S. Sixth St., Champaign, I1I. AXDERSOX, Thomas O. 222 Hillcrest Rd., Raleigh, N. C. ANDERSON, William B. (E) Titanium Pigment Corp., III Broadway New York 6, N. Y. ANDREASEN, A. H. M, (Honorary) Oster Voldgade 10 Copenhagen K" Denmark (Royal Danish Technical University) A!'\DREWS, Andrew I. (EFI) University of Illinois 204 Ceramics Bldg., Urbana, 111. ANDREWS, Clifford M. Ferro Enamel S. A., Caixa Postal 2948 Sao Paulo, Brazil ANDREWS, Ray (G) B. F. Drakenfe1d &: Co., Inc. Box 519, Washington, Pa. A!'\TAKI, Emile Ferrum S. A. de Ceramica & Metalurgia Espana 402/600 Avellaneda, Argentina .-\XTHONY, Benjamin F. (R) Ferro Engineering Co., Box 650~ Clneland I, Ohio ANTHONY, George H. (R) 41 Marion Dr., Poland, Ohio (Youngstown Sheet &: Tube Co.) ANTHONY, Harry L., III (R) ~rellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. Honorary Members of The American Ceramic Society A. H. M. AXDREASOX LAWREXCE E. BARRIXGER FREDERICK CARDER ARTHUR 1. DAY JESSE T. LITTLETOX FRAXK H. RIDDLE ROBERT B. SOSMAX CHARLES \\". THOMAS \\'. E. S. Tt:R:>;ER ARTHt:R S. \\"ATTS Past Presidents of The American Ceramic Society ARTHl'R S. \\'ATTS LAWREXCE E. BARRIXGER HOMER F. STALEY FRAXK H. RIDDLE E. WARD TILLOTSO:-; ROBERT L. CLARE MACDONALD C. BOOZE GEORGE A. BOLE EMERSON P. POSTE JOHN C. HOSTETTER FRANCIS C. FLINT ROBERT B. SoSMAX VICTOR \'. KELSEY ANDREW I. ANDREWS JOHN 1. CARRUTHERS JESSE T. LITTLETON LOUIS J. TROSTEL EDWIN H. FRITZ JAMES E. HANSEN JOHN D. SULLIVAN JOHN W. WHITTEMORE HOBART M. KRANER J. W. HEPPLEWHITE H. R. LILLIE W. E. CRAMER R. R. DANIELSON RAY W. PAFFORD ROBERT TWELLS KARL ScHWARTZWALDER AXTUNEZ, Floreneio (G) Cerveceria Moctezuma, S. A. Fabrica de Botellas Apartado Postal 198 Orizaba, Ver., Mexico ANTUNEZ de ~rAYOLO, Santiago E. Industria Nacional Ceramica y Anexos Casilla Postal 845, Lima, Peru AXWYL, Robert H. (S) 202 E. Main St., Smethport, Pa. (Kaul Clay Mfg. Co.) ARANGO, G. Botero Balboa 63-13, Medellin, Colombia (Cristaleria Peldar S. A.) ARCHBOLD, Walter H., Jr. (MIl 125 Smallwood Dr., Sn)'der 26, X. Y . (Electro Refractories & Abrasives Corp.) ARCHER, James E. (G) Pittsburgh Plate Glass Co. Glass Research Labs., Creighton, Pa. ARCHIBALD, W. A. British I ron & Steel Research Assn . 140 Battersea Park Rd. London, S. W. 11, England ARCHIE, Chad L. (5) Archie Structural Products Co. P. O. Drawer 312, Corinth, Miss. ARCHIE, Chad L., Jr. (S) Archie Structural Products CO. P. O. Drawer 312, Corinth, Miss. ARENBERG. C. Arne (B) Armour Research Foundation Technolu~r Center, Chicago 16, 111. ROSTER :3 I I I J1 d'ARGENTEUIL, Comte L. de Meeus N. V. Ceramique Maastricht Postbus 103, Maastricht, Xetherlands ARGILAS e MINERIOS INDUSTRIAlS "AREMINA" S. A. (Tze-Ching Chin) Rua Barao de Jaguara 1024-1030 Paulo, Brazil , Robert S. (R) South St., Stamford, Conn. . S. Aries & Associates) ARKETEX CERAMIC CORP. (George W. Shoemaker) 6 N. Walnut St., Brazil, Ind. ARLETT, Robert H. (WJ) Rutgers, The State Unh'ersitr School of Ceramics New Brunswick, N. J. ARMCO STEEL CORP. (R. S. Burns) Research Library, Middletown, Ohio ARMISTEAD, W. H. (GF) 65 E. First St., Corning, X. Y. (Coming Glass Works) ARMSTRONG CORK CO. (E. C. Emanuel) Research & Development Center Lancaster, Pa. ARMSTRONG, Leland R. (RI) . 27 Morgan Ave., Washington, Pa. .'.(F"mdlay Clay Products Co.) ARNER, William J. (G) :::~/1607 Watova Rd., Toledo 14, Ohio ,~;'J,\"(Libbey-Owens-FordGlass Co.) .ARliOLD, Howard C. (EFI) '~;"F516 Standish Blvd., Pittsburgh 28, Pa. ,:\,'.<:.(Federal Enameling & Sta!l!ping Co.) .AR.NOLD, Robert M. (W) ::.i'~:"Amold Engineering Co., Marengo, III. WOLD, Russell E. (SF) ;.:~.iBox E, E. Akron Station :jf~"luOD 5, Ohio .. ,">./(RobiDson Clay Product Co.) :$!!1{ed:'/~OLD, Thomas M. (WI) W!ng Po!teries, IDC. ...<.dled Wing, Mmn. ' . . . .N.CE, Frank C. (WI) .,' rs Porcelain Co., Golden, Colo. . NDALE, Roy S. (G) <':.' Thatcher Glass Mfg. Co., Inc. . 1901 Grand Central Ave., Elmira, N. Y. ARRAS, George (E) Quadrangle Mfg. Co., 32 S. Peoria St. .. :.: .i Chicago 7, Ill. :ARSEM, William C. (B) <':.,7829 Old Chester Rd. Bethesda 14, Md. " ", (Consultant) >: '. .'ARTHUR, Edwin P. (G) 31100 Las Faldas Dr., Fullerton, Calif. ,,:;;;'.(Beekman Instruments, Inc.) .' '>'"'~WINE, A. S. (R) Refractory & Insulation Corp. ":' Port Kennedy, Pa. ASHER, John W. (G) ...:.... Box 382, Corning, N. Y. :;:~,.c:(Coming Glass Works) :.SHWORTH, GEORGE L . .t .:'";~>.BROTHERS, LTD. . " ,-' (W. Gordon Evans) "Broad Street Works .':{:Hanley, Stoke-on-Trent, England ASQUITH, Milton , '. Redfearn Brothers, Ltd. Monk Bretton Glassworks . .' ,,- Barnsley, England ASSOCIACAO BRASILEIRA ., ,. DE CERAMICA :,:;. Praea Coronel Fernando Prestes, 110 :;.J..;, (Edificio do I.P.T.) Sao Paulo, Brazil :~!WELL, George D., Jr. (5) :Z.:. :Bickerstaff Brick Co. ;' . Box 1178, Columbus, Ga. . ..Konrad F. . datal, Kt. Glarus, Switzerland -'~:&' kfabrik Netstal Ag.) ':~~~T, Neil N. (BI) .:,'~:';.Norton Co., 1 New Bond St. .: ;,.; :Worcester 6, Mass. :V~~. 36, No. 10 (1957) AUSKERN, Allan (BJ) Westinghouse Atomic Power Div. Box 1468, Pittsburgh 30, Pa. AUSTENAL, INC. , (R. C. Feagin), Box 625, Dover, X. J. AUSTERMAN, Stanley B. tB) 7006 Andasol Ave.,-Van Nuvs. Calif. (Atomics International) , AUSTIN, Arthur O. (B) Box 109, Barberton, Ohio (A. O. Austin Co.) AUSTIl', Charles E. (5) Consolidated Brick Co. Horseheads, l'. Y. AL:STI}\, Chester R. (RFI) Kaiser Engineers Steel Plants Development Div. 1924 Broadway-Kaiser Bldg. Oakland 12, Calif. AUSTIX, Garth F. 76 E. Second St., Corning. X. Y. AVSTIX, James Bliss '(BF) United States Steel Corp. Rm. 2401, 525 William Penn PI. Pittsburgh 30, Pa. AUSTIN, Lewis M. (G) 2334 Middlesex Dr., Toledo 6, Ohio (Owens-Illinois) AVERY, Robert C. Box 826, Alfred, N. Y. AVRIL, Jack J. 8804 Frances Folson Rd., S.W. Tacoma 99, Wash. AYDELOTT, Elliott C. (SFI) Waverly, Pa. (International Salt Co.) AYERS, John W. (M) National Lead Co., Box 1467 Charleston 25, W. Va. AZEVEDO, Marcello R. V. de (I) Caixa Postal 2818, Sao Paulo, Brazil AZPU(CReUraAmicca.. Sanitaria J. A. Porcelite 5/A) Industria Venezolana de Vidrios Pianos C. A. Ed. Humboldt Ap, 6. Sur Plaza Altamira Caracas, Venezuela B B:\AB, Kenneth A. ('1.1) Bethlehem Steel Co., Research Dept. Bethlehem, Pa. BAAK, Tryggve (G) 1321 Old Boalsburg Rd. State College, Pa. (Pennsylvania State Universit)) BAARSON, Robert E. (M) Armour Chemical Div. Flotation Research Section 1355 W. 31st St., Chicago 9, Ill. BABA, Paul D. 358 Pennington St., Elizabeth 2, l'. J BABCOCK, Clarence L. (GF) 1718 Potomac, Toledo 7, Ohio (Owens-Illinois) BABCOCK, M. G. (G) 618 Kenilworth D~., Pittsburgh 34, Pa. (Pittsburgh Plate Glass Co.) BABCOCK, Paul R. (WI) Frenchtown Porcelain Co. Frenchtown, N. J. BABCOCK .t WILCOX CO. O. E. Brinckerhoff) 161 E. 42nd St., New York 17, N. Y. BACH, Carl H. (5) 247 E. Chestnut St., Chicago II, Ill. BACH, William E., Jr. (M) 7712 Fontana Prairie Village 15, Kans. (Aluminum Co. of America) BACHER, Holland R. (W) Rock Tavern, N. Y. (White Cloud Farms, Inc.) BACHMAN, Charles D. (G) 200 Shelburne Rd., R. R. 2 Millville, N. J. (Armstrong Cork Co.) HACHMAN, George S. (G) 151 W. Washington St., Shelbyville, Ind. (Pittsburgh Plate Glass Co.) BACHMA!\', James R. (R) Battelle ~Iemorial Institute 505 King Ave., Columbus 1, Ohio BACHMAN, Wheeler Carr (W) R.R. 5, Grafton, W. Va. (Carr China Co.) BACOX, Frank R (GF) 3153 Darlington Rd., Toledo 6, Ohio (Owens- I1Iinois) BADGER, Alfred E. (GF) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio BAER. G. ~l. lR) R. C. Remmey Son Co. Hedley St. & Delaware River Philadelphia 37, Pa. BAGBY. Richard A. (B) 205 E. ~larket St., Salem. Ind. I Ferro Powdered Metals) BAGLEY, }\orman H. (W) 206 Central Ave., Caldwell, !\'. J. (Bell Telephone Laboratories, Inc.) BAILEY, Floyd (El) 840 S. Sixth Ave., Kankakee, Ill. (A. O. Smith Corp.) BAILEY, Henry' R, Jr. (B) Golding-Keene Co. 226 Main St., Keene, N. H. BAILEY, James (GF) 95 Steele Rd., West Hartford 7, Conn, (Plax Corp.) BAILEY, Richard J. Doulton Fine China Ltd. Royal Doulton Potteries Burslem, Stoke-on-Trent, England BAIN, Andrew R. The Whins, 26 Park Terrace Stirling, Scotland BAIl., George J. (GFI) Technical Products Division Coming Glass Works, Coming, N. Y. BAKER, Arvid H. (G) 300 Catlin Ave., Port Allegany, Pa. (Pittsburgh Coming Corp.) BAKER, Burton E. (R) 15 Gwynlake Dr., Baltimore 7, Md. (General Refractories Co.) BAKER, Daniel R. 606 W. Columbia, Champaign, Ill. BAKER, D. Martin (W) 1025 Gardner Blvd., Barberton, Ohio (Ohio Brass Co.) BAKER, Dunbar J. (I.) 514 W. High St., Womelsdorf. Pa. (North American Refractories Co.) BAKER, Houston R, (G) 122 Wilson Ave., Lancaster, Ohio (Sharp-Schurtz Co.) BAKER, Robert J. Jr. 1104 W. Stoughton, Urbana, Ill. BAKER, Robert L. (G) 46 Highland Ave., Wellsville, N. Y. (Air Preheater Corp.) BAKER, Theodore C. (G) 3742 Drummond Rd., Toledo 13, Ohio (Owens-Illinois) BAKKEN, A. c., Jr. (M) Aluminum Co. of America 1880 Elmwood Ave., Buffalo 7, N. Y . BALDAUF, Earl E. (WI) Flamingo Tile Corp., Box 112 Lake Wales, Fla. BALDRY, Stanley F. T . E. R. G. Industrial Corp., Ltd, Luton Rd., Dunstable. Beds London, England BALDWIN, W. J. (W) Titanium Alloy Mfg. Div., National Lead Co., Box C Bridge Station, Niagara Falls, N. Y. BALIXA, Marcelo O. C.A.P.E.A. Lanus-KM 7 C Gral. Belgrano Buenos Aires. Argentina BALlNKIN, lsay (W) University of Cincinnati Cincinnati 21, Ohio ROSTER 5 Ii I I, ;"l' I ;;: ,;! 1 II: j ;i: BALINT, Louis J. (B) 14185 Stor)' Rd., San Jose 27, Calif. (Kaiser Aluminum & Chemical Corp.) BALL, Albert L. (R) Bay State Abrasive Products Co. Westboro, Mass. BROTHERS CO., INC. _ nde, Ind. JEE, A. ehar Firebricks & Potteries Ltd. P. O. Mugma, Dist. ;,lanbhum, India BAQCE, Harold W. (GI) Corhart Refractories Co. 940 Commonwealth Bldg. Louisville 2, Ky. BARBA, Charles E. Jr. 1;'1) Creek Rd .. R. R. I. Doylestown, Pa. I Harper Electric Furnace Corp.) BARBER, Fred O. (M) 788 Evening St., Worthington, Ohio (Harrop Ceramic Service Co.) BARBER, Stephen W. (G) Owens-Illinois 1700 X. Westwood .-\\"C., Toledo I, Ohio BARBOUR, David J. (WF) 345 E. Highland Dr., Zanesville, Ohio BARBRE, Norris H. (S) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. BARCH, Frank N. (S) Frank ~. Barch & Co. 700 Wood St., Pittsburgh 21, Pa. BARIUM REDUCTION CORP. (K. O. Priddy) South Charleston 3, \V. Va. BARKER, Harry L. (W) R. R. 4, Salem, Ohio (0. Hommel Co.) BARLETT, Helen B. (BF) A C Spark Plug Div. General Motors Corp., Flint 2, Mich. 'BARNA, Gordon L. R. R. 7, Box 575, Tacoma, Wash. "BARNES, Harry H. (BI) ' . . . .ah Chang Corp., Zirconium Div. x 366, Alban)', Ore. ES, Wilson R. (R) Corhart Refractories Co. 16th & Lee Sts., Louisville 10, Ky. BARNET, Joaquin Ceramicas Kli-per Apartado 1243, Havana, Cuba ,BARNEY, Ronald :1\. (B) , 1331 Prospect Dr.. Kynlyn Apts. Wilmington 3, Del. (E. I. du Pont de Xemours & Co.) BARON, Jean . Laboratoire de Controle des Produits Refractaires IS, Place Carnot , Nancy (Meurthe et Moselle) France :BARR, Harold N. (B) . Martin Co., Nuclear Div. Mail W-711, Baltimore 3, Md. BARR, Harry (M) . Consolidated Feldspar Dept. International Minerals & Chemical Corp. Box 1843, Trenton 7. N. J. BARR, James A., Jr. (M) Texas Power & Light Co. 1518 K St., X. W. Washington 5, D. C. BARR, Robert A. (W) Stupakoff Div., Carborundum Co. Latrobe, Pa. BARR, Seymour J. (S) Shenandoah Brick & Tile Corp. Box 32, Winchester, Va. BARRETT, E. L. (R) Chas. Taylor Sons Co. South Shore, Ky. ETT, Harvey N., Jr. (R) 33 St. James Parkway " eveland Heights, Ohio " (Basic, Inc.) BARRETT, Maurice (Life) 8 Oxc1iffe Rd. Morecambe and Heysham, England VOL. 36, No. 10 (HI.)',) BARRETT, Wayne E. (S) IU7 20th St., "'est Des ;'Ioines. Iowa (Oskaloosa Clay Products Co.) B.~RRINGER, Lawrence E. (Honorary, WFI) 23 Front St., Sc.hevectady 5, X. Y. (General ElectriC Co.) BARROWS PORCELAIN ENAMEL CORP. (Woodrow Carpenter) Langdon Rd. & Penn R. R. Cincinnati 13, Ohio ll:\RT. Ronald K. 503 W. Washinll"t.on, Champaign. Ill. BARTA, R. Technicka ul.c.5. Praha XIX, Czechoslovakia I Technical l'ni"ersity) B:\RTHOLO;'lE\\'. George A. IS) Cnited States Steel Corp. 525 William Penn Place, Rm. 2210 Pittsburgh 30, Pa, B.-\RTHOLO;'IE\\, George L. 4230 Lewiston Rd. :\iagara Falls, X. Y. BARTLETTCOLLINS CO. (Harrison 1. Bartlett) Box 519 Sapulpa, Okla. BARTLETT, E. E. (G) 4387 Boca Chica Blvd. Brownsville, Texas (Bartlett-Collins Co.) BARTLETT, Harrison 1. (G) Bartlett-Collins Co., Box 519 Sapulpa, Okla. BARTOX, Donald E. S. G. F. K. Refractories Ltd. 49 Moorgate, London E. C. 2, England BARTOr;;, James E. Box 2435, Clemson College Sta. Clemson, S. C. BARZAGHI, Luciano Ceramica Sao Caetano Rua Roa Vista, 133.4 andar Caixa Postal 278. Sao Paulo, Brazil BASKIX, Yehuda (B) Armour Research Foundation Ceramics Dept., 10 W. 35th St. Chicago 16, III. BASIC, INC. (H. C. Lee) 845 Hanna Bldg., Cleveland 15, Ohio BASS, N. W. (R) Brush Beryllium Co., 4301 Perkins Ave. Cleveland 3, Ohio BASSETT, Leon B. (B) Box 284, Alfred, N. Y. (State University of New York, College of Ceramics) BASSETT, Ray E. (S) Aeme Brick Co., Box 425 Fort Worth 1, Texas BASSETT, Robert (S) Central Commercial Co. Darlington, Beaver County, Pa. BATEMAN, L. A. (E) Eljer Co., Enamel-Ware Div. Salem. Ohio BATES, A. Allan (B) Portland Cement Assn. 33 W. Grand Ave., Chicago 10, III. BATES, Charles E. (S) 128 Walnut St., Brookville, Pa. (Hanley Co.) BATES. Frank O. (B) 9227 EilZ"hth !\\-e.. Inglewood 4. Calif. (H. F. Coors Co.. Inc.) BATES, P. H. (Life, XF) 1620 Seventh St., N., St. Petersburg, Fla. BATES, W. S. (R) Spectrochemical Labs., Inc. 1010 Wood St., Pittsburgh 21, Pa. BATESON, H. Marshall 68 Spring Grove Loughton, Essex, England (Thermos, Ltd.) BATESON, Sydney (G) Duplate Canada Ltd. Oshawa. Ont., Canada BATRUK. Stanley J., Jr. (E) Xew Tersev Zinc Co. 160 F'ront St., Xe\\' York 31\. :\. Y. BATTISTA, George Box 747, Alfred, X. Y. BAUER, Richard M. (M) 728 St. Louis Ave., Zanesville, Ohio (Mosaic Tile Co.) BAl'ER, Wolf G. (S) 5622 Seaview Ave., Seattle 7, Wash. (Consulting Engineer) B.....lLEKE, ;'laynard P. (\\'1 WIO Meadow Brook B!,tl. ;,Iinneapolis 26. ;'finn. I ;,Iillneapolis-Honey\\'ell Regulator Co.) BAUM, Frederick J., Jr. (B) E. 1. du Pont de Nemours & Co., Inc. Experimental Station, Chemical Dept. Wilmington, Del. E."" C;,r. Joseph \\'. (G) 200 Highland Ave .. Rensselaer. :\, Y. I Sterling-\\';nthrop Re>earch Illst.) BAUMANK, Henry N., Jr. (BFI) 1275 Wyoming Ave. Niagara Falls, N. Y. (Carborundum Co.) BAUMER, Leon N. (R) 240 Rockingham Rd., Pittsburgh 38, Pa. (Mellon Institute) BAUMLER, Karl (G) Pittsburgh Corning Corp., Sedalia, Mo. BAUSCH cl LOMB OPTICAL CO. (Murray Scott) Rochester 2, N. Y. BAXTER, Allen J. (G) 106 Redwood Dr., Greemille. Ohio (Corning Glass Works) BAYLISS, John M. (R) 629 Frederick St., Lancaster. Ohio (Harbison-Walker Refractories Co.) BAY STATE ABRASIVE PRODUCTS CO. (0. S. Buckner) Westboro. Mass. BEALS. M. Douglas (BI) 104 Forest Rd., Fanwood. N. J. (Titanium Alloy Mfg. Dh .. Xational Lead Co.) BEALS, Robert J. (WI) University of Illinois 111 Ceramics Bldg., Urbana, Ill. BEAM, James R. (WFI) 300 Ruth Ave., Mansfield. Ohio (Ceramic Engineering Service) BEARD, Clinton L. (WI) Globe-Union, Inc., 900 E. Keefe Ave. Milwaukee 12, Wise. BEARDSLEY, Clinton J. (W) 666 E. Findlay St.. Care)". Ohio (Porcelain Products. Inc.) BEASLEY. Dennis R. (G) R. 4-Bx38B-Suncre't Lk. Addn. ~[organtown. \\'. Va. (Beaumont Co.) BEASLEY, Robert M. (G) Corning Glass Works, Corning, N. Y. BEASLEY, William D. Johnson Brothers (Hanley) Ltd. Stoke-on-Trent, England BEATHARD, Robert K. (W) General Tile Corp., Box 38 EI Se&'Undo, Calif. BEATOX. Orville (R) Gem Clay Forming Co., Sebring, Ohio BEAVER. Wallace W. (B) Brush Beryllium Co., 4301 Perkins Ave. Oeveland 3, Ohio BEAZELL. William H. (G) American Window Glass Co. 20th Floor, Farmers Bank Bldg. Pittsburgh 22. Pa. BEBBI:\GTON. Philip J. (R) 30 Exeter St .. Morris Plains, l'\. ]. (.-\ustenal. Inc.) BECHT:\ER. Paul (!If) American Colloid Co. 1\13 ;,ferchandise ;,Iart, Chicago 54. Ill. BECK, Elmer W. (M) Ceramic Supply Co., Crooksville, Ohio BECK. J. Howard (M) BTU Engineering Co. 440 Somerville Ave. Somen'ille 43. ~fass. ROSTER 7 .-" BECK, Norman R (G) CarrLowrey Glass Co. Baltimore 3, Md. BECK, Warren R. (B) Minnesota Mining & Mfg. Co. 900 Fauquier Ave. . Paul 6, Minn. MEYER, Harry]. (W) iversalRundle Corp. . Keith McAfee Lab., Box 1268 Mahoningtown, Pa. BECKER, Bruce K. (G) 629 Kew Holland Ave., Lancaster. Pa. (Radio Corp. of America) BECKER, Martin G. (S) Brookhaven Pressed Brick & Mfg. Co. Box 542, Brookhaven, Miss. BECKER, Walter D. (S) Brookhaven Pressed Brick & Mfg. Co. Box 542, Brookhaven, Miss. BEEBE. Donald R. 12126 S. Perr~' .he .. Chicago 28, Ill. BEECHER, Milton F. (RFI) 50 Woodland Rd., Holden, Mass. (Korton Co.) BEELER, L. S. (W) Reynolds Metals Co., 2500 S. Third St. Louisville I, Ky. BEERMAN, Henr)' P. (B) Radiation Electronics Corp. 8241 };'. Kimball Ave., Skokie, Ill. BEERS, Roland F. (B) Box 1019, Troy, N. Y. (Roland F. Beers, Inc.) BEETON, Earl E. (G!) 1604 Lincoln St., Bethlehem, Pa. (Western Electric Co.) BEGGEROW, Charles W. 309 Osceola Ave., Lake Wales, Fla. BEGlEN, Virginia American Ceramic Society 4055 N. Hirh St. Columbus 14, Ohio BEGLEY, Hiram C. (S) ~bin Brick Co.. Box 574, Corbin, K). FIREBRICKS & ERIES LTD. (A. Banerjee) . O. Mugma, Dist. Manbhum, India BEHREND, Oswald (R) 2557 Robinwood, Toledo, Ohio (Owens-I11inois) BEHRINGER, H. L. (G) Tygart Valley Glass Co. Washington, Pa. BEINLICH, Alfred W. (R) 3404 19th Ave., Sheffield, Ala. (Tennessee Valley ....uthority) BEINLICH, Justus J. (R) United States Steel Corp., Room 2421 525 William Penn Place Pittsburgh 30, Pa. BELANDRES, Constante Philippine Bureau of Mines Herran St., Manila. Philippines BELD, George H. (E) Kelvinator Div. American Motors Corp. 1600 Clyde Park Ave., S. W.: Grand Rapids 9, Mich. BELKOWSKI, Arthur V. (W) 454 Convery Blvd. Perth Amboy, N. J. (New Jersey Porcelain Co.) BELL, Clarence D. (WJ) 410 N. Seventh St.. Cambridge, Ohio (Champion Spark Plug Co.) BELL, Kenneth E. (S) 349 Lacasse Ave., Apt. 6 Eastview, Ont., Canada (Ottawa Brick & Terra Cotta Co., Ltd.) BELL. Richard (M) Bell Clay Co., Gleason, Tenn. B~ALMY, Harry T. (R) American Embassy, 74, Box K Francisco. Calif. n (Armour Research Foundation) oELLAMY, L. B. (R) ....brasive & Metal Products Co. 729 Meldrum Ave .. Detroit 7, Mich. VOL. 36, No. 10 (1957) BELLE, Jack (B) Westinghouse Electric Corp. , Atomic Power Div., Bettis Field Box 1468, Pittsburgh 30, Pa. BELLIDO, Bartolome Darnis Director Gerente ile MER S A Lugones (Oviedo), Spain BELOW, Henry (W) Pennsbury Pottery, Morrisville, Pa. BEl\BENEK, Raymond (S1) Canada Brick, Ltd. Streetsville, Ont., Canada BE:-WER, John H. (R') Denver Fire Clay Co., Box 5510 Denver 17, Colo. BEl'\EDICT, Virginia American Ceramic Society 4055 N. High St., Columbus 14, Ohio BENJAMIN ELECTRIC MFG. CO. (Hoyt P. Steele) ~es Plaines, Ill. BEKKER, Stanley G. (E) JohnsManville Research Center Manville, N. J. BENNETT, A. H. (G) American Optical Co., Research Center Southbridge, Mass. BENNETT, A. Lee (SF!) 1830 Las Flores Dr., Glendale, Calif. (Pacific Clay Products) BENNETT, Dwight G. (EFI) 204 Ceramics Bldg. University of Illinois, Urbana, III. BENNETT, Frederick R. (R) Box 325, Hartsville, S. C. (Carolina Refractories Co.) BENNETT, Marvin (W) 1100 Gilham St. Philadelphia 11, Pa. (IT-E Circuit Breaker Co.) BENNETT, Myles P. (BI) 6552 N. Oldham Lane San Gabriel, Calif. (Gladding, McBean &: Co.) BENl'\ETT. Philip M. (R) 215 Amboy Ave., Metuchen, N. ]. (Such Clay Co.) BENNETT. Walter R. (S) Acme Brick Co., Millsap, Texas BENSON. Edward (R) New Departure Div. General Motors Corp., Bristol, Conn. BENTZ, Geor~e B. (M) National Plumbing Pottery. Inc. 305 N. Front St., Columbus IS, Ohio BEKZEL, James F. 297 Front St., Berea, Ohio BERG, Morris (B) 315 Pleasure Rd .. Lancaster, Pa. (Radio Corp. of America) BERGER. Bernard M. (E) Dept, 817. Sears, Roebuck & Co. 925 S. Homan A,e. Chicago 44, Ill. BERGER, Donald F. (G) 210 Benjamin Rd., North Madison, O. (Diamond Alkali Co.) BERGEROl'\. Clifton G. (EI) Vni\'ersity of Illinois Dept. of Ceramic Engineering Urbana. Ill. BERG-IVERSEN. Wiggo A/S Egersunds Fayancefabriks Co. Egersund, Norway BERKELHAMER, Louis H. (EI) 3621 W. Howard St., Skokie, 111. (Ohmite Mfg. Co.) BERNARDINI. Guy F. (W) Box 19. R. R 1, Latrobe, Pa. (Stupakoff Div., Carborundum Co.) BER~HARD, Herbert L. (R) 2017 Shirley Ave . Augusta. Ga. (Babcock & Wilcox Co.) BERNS. Milton H. (M) 249 Charlotte Ave., Hamburg, N. Y. (Electro Refractories &: Abrasives COI1l.) BERRY, Thomas F. (B) 527 34th St., Union City, N. ]. (Radio Corp. of America) BESSE. Richard W. (W) Onondaga Pottery Co.. 2900 Court St. Syracuse. N' Y. BESSEY. George E. Chalk Lime & Allied Industries Research Association, 30a Church St. "'elwyn, Hens, England BEST, Edison F. (G) LibbeyOwens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio BEST, WILLI.-\~l S. (S) R.R. 3, New Bethlehem, Pa. (l\ew Bethlehem Tile Co.) BESTHOFF, :\nthony \Y. (GJ) Faes\' & Besthoff. Inc. 23-25 E. 26th St.. Kew York. ~, Y. BESTl'L. Alden B. (B) 5121 ~ewport .\\'e. \\'ashington 16. D. C. (Kational Bureau of Standarus) BETHLEHEM STEEL CO. (Hobart M. Kraner) Bethlehem, Pa. BETTISO~, L. S. (S) Chambers Brothers Co. 52nd & Media St.. Philadelphia 31, Pa. BETZ, Geor!(e C. (WFIl Metal & Thermit Corp. 100 ParkA,e., l'\ew York 17, N. Y. BETZ. Wilbert A. (W) U. S. Potters Assn. 104 E. Fourth St., East Liverpool, Ohio BEVIS, Ralph E. (EI) 1815 ~. Park Blvd. Cleveland Heights 6. Ohio (Ferro Corp.) BEYER, George 1. (E) Hall Ave., St. Marys, Pa. (Pure Carbon Co.) BEZBORODKO. David (G) Mechanical Mirror Works, Inc. 661-663 Edgecombe Ave. New York 32, N. Y. B. G. CORP. (N. Hellman. III), 321 Broad Ave. Ridgefield, ~. J. BHALLA, Amrit K. (W) National Tile & Mfg. Co. 1200 E. 26th St.. Anderson. Ind. BICKERSTAFF CLAY PRODUCTS CO. (L. N. Bickerstaff) Box 1178 Columbus, Ga. BICKERSTAFF, L. N. (S) Bickerstaff Clay Products Co. Box 1178, Columbus, Ga. BICKFORD. Fred A. (G) Box 29, RR. 2, Campbell, N. Y. (Corning Glass Works) BIDDLE, George ]. (R) 208 S. LaSalle St., Chicago 4, Ill. (Illinois Clay Products Co.) BIDDULPH, Albert 11 Holden Rd. Wolverhampton, England (Ferro Enamels Ltd.) BIELSTEIN, Hans O. (R) Aeronautical Research Lab. (WCLJL) Metallurgy Research Branch WADC, Wright-Patterson AFB. Ohio BILLHEIMER, John E. (Wn Highwood, Easton Ave. New Brunswick. N. ]. (Mitchell-Bissell Co.) BILLIAN, Carroll ]. (G) OwensIlIinois General Research Div. 1700 N. Westwood Ave., Toledo I, Ohio BINDER David G. 209 E. Armory. Champaign. Ill. BIONDI. Joe 2310 E. 52nd St., Los Angeles 58. Calif. BIRCH, Raymond E. (RFI) Harbison-Walker Refractories Co. 307 Fifth Ave .. Pittsburgh 22. Pa. BIRSE, Alexander L. John G. Stein & Co., Ltd. Bonnybridge, Scotland BISHOP, Frederic L. (GF) Kimble Glass Co. Owens-Illinois Technical Center 1700 N. Westwood Ave. Toledo i. Ohio ROSTER fI j SHOP, George J., III (5) Columbia Brick & Tile Co. Box 320i, Columbia, S. C. SHOP, Harold E. (G) Owens-Corning Fiberglas Corp. Anderson, S. C. SHOP, Laverne R. (R) um Co. of America issouri A\e., East St. Louis, Ill. S . Don W., Jr. (RI) 703 Green St., Rockton, Ill. (Ipsen Ceramics Inc.) SSET, Ronald \Y. 1\\') Aluminium Limited Sales, Inc. 630 Fifth Ave., New York 20, N. Y. STLI~E, \\"alter .-\. (G 1I Pittsburgh Plate Gla,~ C'), Creighton. Pa. XBY, Henry D. (S) Central Commercial Co. Darlington, Beaver County, Pa. .ACK, H. R. (G) Kimble Glass Co. 1700 !\. Westwood Ave., Toledo, Ohio .ACKBl"RN, A. Reif (M!) 204 N. State St., Westerville, Ohio (Ram, Inc.) .ACK~I.-\R, Robert J. Box 1038. Allred, X. Y. ACKWOOD, James M. (RI) 124 First St., Niagara Falls, N. Y. (Carborundum Co.) AES, Henry M., II (B) 339 N. Hoover Ave., Whittier, Calif. (North American Aviation) AHA, Emil (R) 415 Ashmead Rd., Cheltenham, -Pa. (Se1as Corp. of America) AIR, Gerald E. 511 E. Foster A\'C., State College, Pa. .AIR, Marion W. (SF) 2131 S. Center St., Terre Haute, Ind. (Manufacturers Equipment Co.) .AIR, William H. (M) 3936 Bryn Mawr Dr., Dallas, Texas ommel Co.) :.. , Pierre e des Electrodes & Re ractaires "Savoie" 16, Rue de Monceau, Paris 8, France :"AKE, William V. (Rl) Macklin Abrasive Co., Jackson, Mich. CAKELY, Alexander M. (B) Precision Grinding Wheel Co., Inc. 8301 Torresdale Ave. Philadelphia 36, Pa. LANCHARD, M. Kenneth (E) A. O. Smith Corp., 3533 N. 27th 51. Milwaukee I, Wisc. ' :"'AU, Henry H. (GF!) Federal Glass Co., 515 E. Innis Ave. Columbus 7, Ohio :"AZE, Joseph E., Jr. Box 153, Alfred, N. Y. LAZOVIC, Phil, Jr. (M) 3286 Western Ave. Highland Park, Ill. (Consolidated Feldspar Dept. International Minerals & Chern. Corp.) I.ECHEISEN, J. (E) Rosiclare Lead & Fluorspar Mining Co. Rosiclare, Ill. LENKO, William Henry, Jr. (G) 1412 Main St., Milton, W. Va. (Blenko Glass Co., Inc.) LESSING, Robert Lee (51) 1714 Crestwood Dr. Mineral Wells, Texas (Texas Vitrified Pipe Co.) LISS, Roderick T. (S) - . Center St., Xesquehoning, Pa. ter Concentrator Co.) L Jerald 'illiam St.. Tonawanda, N. Y. LOCKSIDGE, Arthur B., Jr. (R) Jones & Laughlin Steel Corp. 40 Longworth St., Pittsburgh 7, Pa. OL.:~(). ~O. 10 (l!).ji') BLOD(~ETT, \\"illiam E. (W) 11 Lakeview Terrace, \\'oburn, ~[ass. \ R. Gustavino Co.) BLO~[ E, James C. 221) S. Pennsvh'ania .-\'e. Belle"ille, 111'- BLOOM, Ray A. (R) Technical Library Timken Roller Bearing Co. Canton 6, Ohio BLOORE, Robert Boulton Swinnertons, Ltd. Hanley, Stoke-on-Trent, England BLOC~T. Bruce I\\') . Gilmer Potteries, Inc .. Box 489 Gilmer. Tel'''' BLUE RIDGE GLASS CORP. (]. H. Lewis) Kingsport, Tenn. BLU:\f, Seymour (WI) Raytheon Manufacturing Co. Research Div. Waltham, Mass. BLUME, Arthur J. (51) Murray Tile Co., Cloverport, Ky. BLC:\IER, Fridolin (D) Lane Gate Rd. Cold Spring, Putnam Co., N. Y. \ Commercial Decal, Inc.) BLUNT, Royden A. (GF) Buck Glass Co., 841 E. Fort Ave. Baltimore 30, Md. BLYTHE COLOUR WORKS, LTD. Cresswell, Stoke-on-Trent, England BOARDMAN, Charlotte K. (R) Thomas A. Edison, Inc. 51 Lakeside Ave., West Orange, N. J. BOBROWSKY, A. R. (R) 2012 Pontiac Rd., Ann Arbor, ~Iich. (Xucor Research, Inc.) BOEKER, V. W. (GI) Owens-Corning Fiberglas Corp. 598 Madison Ave., New York 22, N. Y. BOGATAY, Paul (D) 45 W. Weisheimer Rd. Columbus 14, Ohio (Ohio State University) BOGX:\R. Edwin J. (RI) Bognar & Co.. Inc. 1711 First ~ational Bank Bldg. Pil1shurll'h 22. Pa. BOHLI~G. William C. 1J0j E. Sixth. Washington. ~Io. BOH~. Edward L. (R) :\Iullite Works. Refr. Diy. H. K. Porter Co.. Inc. 10 Canal St.. Shelton, Conn. BOLANOVICH, Melvin (5) 3118 Palmer Sq., Chicago 47, III. (minois Brick Co.) BOLE, George A. (XF) Engineering Experiment Station Ohio State University Columbus 10, Ohio BOLES. Sara J. 10\\ a State College Elm Hall, Ames, Iowa BOLIX. \Villiam J. (E) _-\merican Zinc Sales Co. Box 32i, Columbus. Ohio BOLTXGER, Phillip !". 2247 Grassmere Ave., Columhus II, Ohio BOLLEK, W. J. Algemene Vereniging voor de ~ederlandse, Aardewerk en Glasindustrie, Haagweg 139 Rijswijk, Netherlands BOLLINGER, Robert H. (M!) Georgia Kaolin Co., 433 N. Broad St. Elizabeth 3, N. J. BOLO~. David G. (Rn R. R. l<l, Bux 3Rl. Indianapolis. Ind. I:\Ianufacturers' Agent) BOLTON, Harry L. (R) Philadelphia Quartz Ul. Public Ledger Bldg. Independence Square Philadelphia 6, Pa. BOLZ, Leonard H. (B) National Bureau of Standards, Div. 9: 7 Conn. Ave. & Van Ness Washington 25, D. C. BOX DS. Ba~hara C. R. R. J. Box 205, Jone,hc,ru. Ca. BONEBRAKE, H. P. (M) Aluminum Co. of America 1501 Alcoa Bldg., Pittsburgh 19, Pa. BONNOT CO. (B. T. Bonnot) 722 Mulberry Rd., S. E., Canton 2, Ohio BONNOT, B. T. (MF) Bonnot Co., 722 :\Iulberry Rd., S. E. Canton 2, Ohio BO~STEI~, Thomas E. (\\', Paper :\Iakers Importing Co., Inc. H S. Second St., Easton, Pa. BOOTH, John F. Hazlehead Hall. Penistone, X r. Sheffield Sheffield, York, England (Hepworth Iron Co., Ltd.) BUOY. Emm\' CBox "5"..\lired. :\. Y BOUZE. ~1. C. IRFI) 4i 25 \\alton Creek Rd. Cincinnati 27, (lhio I Consultant) BOPI'. Charles D. I B) 620 W. Vanderhilt Dr. Oak Ridge. Tenn. IOak Rirlge Xational Lab.1 BOPI', Harold F. (GF) 67 Gorton St., Corning, N. Y. (Corning Glass Works) BOROFSKY. Arnold J. (R) Fenwal. Inc., Ashland. :\fass. BOROS. John (W) Pacific Tile & Porcelain Co. 7716 E. Olive St., Paramount, Calii. BORRELLO. Giuseppe Cornigliano, Piazza Dante i Genova, Italy BOSCH, F. M. Lab. Anorganisch-Tech. & Electro chemie 22 Plateaustraat, Ghent, Belgium BOSLER. Krell (\\') 1000 Yorkwood Dr., Mansfiel<l. Ohio (Ingersoll-Humphryes Di\'. Borg-Warner Corp.) BOTFIELD, George B. (R) Botfield Refractories Co. Swanson & Clymer Sts. Philadelphia 47, Pa. BOTFIELD REFRACTORIES CO. (George B. Botfield) Swanson & Clymer Sts. Philadelphia 47, Pa. BOTHE, James V. (G) 3 Pyrex St., Corning. N. Y. (Corning Glass Works) BOUDER, Norman M., Jr. (G) 913 Korthern Pky., Baltimore 12, ~fd. (Pemco Corp.) BOURGERIE, R. D. (W) Radio Materials Corp. 3325 N. California Ave., Chicago 18, Ill. BOVARD, Richard F. (G) Pittsburgh Plate Glass Co., Works #10 Henryetta, Okla. BOVEE, Benedict A. (M) 1837 Winter Rd. Grand Island, R.F.D .. N. Y. (Harper Electric Furnace Corp.) BO\\'DE:-\, James J. (B) Bowflux Co., Box 65, Cortland, Ohio BOWEN ENGINEERING, INC. (William A. Bowen) :-\ orth Branch, N. J. BOWE~. Rohert G. 2i3 "B" St.. Clemson. S. C. BO\\'E~. William :\. (\\,) Bowen Engineering, Inc. :\orth Branch,~. J. BOWER, Dadd ~. I G) .1'115 Elmhurst. Toledo lJ, Ohio I (hI en,-Illinoi;;) ROSTER 11 .1 J.;. OWERS, Donald J. (B) 950 Highland Dr.. Columbus 21. Ohio (Battelle Memorial Institute) OWES. l.'rban E. (GF) 315 E. Front St., Perrysburg, Ohio Wwens-IllinOiS) N, Donald C. (E) . Craig PI., Lombard, Ill. lcago Vitreous Corp.) OWMAN, D. Scott (M) Carborundum Co., Globar Div. Niagara Falls, N. Y. 'OWMAr-:, Eugene D. (G) 1217 Carolwood AYe. Columbus 13, Ohio (Kimble Glass Co.) ;OWMA~, George A. 402 E. Armory, Champaign. 111. lOWMAN, James A. Box 1286. Georgia Tech. Sta. Atlanta, Ga. 3OWMAN, John G. (W) 341 5. Juliana St., Bedford, Pa. 30WMAN, Robert R. (R) Harbison-Walker Refractories Co. 609 Jackson Bldg.. Buffalo 2, N. Y. 30WNE, Martin S. (51) Lee Clay Products Co., Inc. Clearfield, Ky. BOYCE, Joseph (M) Vitro Mfg. Co., 60 Greenway Dr. Pittsburgh 4, Pa. BOYCE. Robert E. (W) Harker Pottery Co. East Liverpool. Ohio BOYD. Frank H. (M) 5. G. Frantz Co. Inc. Box 1138. Trenton 6, N. J. BOYD. Jolm E. (MI) Box 2414, Greensboro. N. C. (Carolina Pyrophyllite Co.) BOYD. L. R., Jr. (5) atTeague Brick &: Tile Co., Box 329 gue, Texas Robert C. (EFI) encan Standard, 1541 5. Seventh St. uisville 8, Ky. BOYD, WiIIi3m \\'. (W) 11528-3". ". E .. Seattle 55, Wash. (J. R. Sir.piot Co.) BOYLES, Joc" l' (W) Edwin M '::. :",Ies China Co. Newell. W. '.., BOYNTON, Cia .. , G. (DF) 54 E. Cedar. (;hicago 11. 111. ( Industrial Publications, Inc.) BOYN~"N. Robert S. (X) Na Assn. 925 W. Wase BOZZO, J. Pierce C ""ve. Port AlI<c BRACKBILL, L. 550 W. Brown ::>t. New Lexington. Ohio (Ludowici-Celadon Co.) BRADDY, John E. (G) Owens-Illinois Technical Center 1700 N. Westwood .'he. Toledo 7, Ohio BRADEN, Roger W. (M) Hammond Lead Products 526 Calum.et Bldg., Hammond. Ind. BRADEN, William E. Ferro Corp., Far East Div. Box 6130, Kowloon, Hong Kong BRADFORD, Virgil E. (W) 126 Cochran Way, Apt. 20 New Castle. Pa. ~ iversal-Rundle Corp.) EY, Alan L. linan Refractories Ltd. . O. Olifantsfontein Transvaal, South Africa BRADLEY, Charles A., Jr. (G) Pinewood Acres, R. R. 3, Corning, N. Y. (Coming Glass Works) VOL. 36, No. 10 (1957) BRADLEY, Fennimore N. (WI) 940 Oregon St.. Palo Alto, Calif. (Lockheed Aircraft Corp.) BRADLEY, Richard S. (RFl) 4 Park Circle, Mexico. !llo. (A. P. Green Fire 9rick Co.\ BRADLEY, Robert E. 3004 Cardinal Dr., Augusta, Ga. BRADSTREET, Samuel W. (E) Armour Research Foundation 10 \V. 35th St.. Chicago 16. 111. BRADWELL, Cyril (RI) Parkhurst Apts. 7B . Barbara & Marion Sts., Bethlehem, Pa. (Bethlehem Steel Co.) BR ..\DY, Earl (S) Box 52.!. \\'askom. Texas (Acme Brick Co.) BRADY, John G. (B) Dept. of Mines & Technical Sun'eys Ceramic Section, 40' Lydia St. Ottawa, Ont., Canada BRADY. Justin M. (M) 1320 N. Delaware, Apt. 604 Indianapolis, Ind. (American Art Clay Co.) BRADY, T. E. (R) Surface Combustion Corp. 2375 Dorr St., Toledo 1, Ohio BRAIN, Douglas G. (W) 1960 Jane St. Toronto 15, Ont., Canada (American Standard Products) BRAMLETT. William P., Jr. (GI) Cumberland Rd., R.R. 2, Millville, N. J. (Armstrong Cork Co.) BRAND, Robert C. (G) Dominion Minerals Div. Riverton Lime & Stone Co. Piney River. Va. BRANDES, Eric A. Fulmer Research Institute Ltd. Stoke Poges, Bucks. England BRANDT. Kristian H. (B) 1076 Karesh Ave. Pomona, Calif. (Convair) BRA!\DT. Martha W. (G) National Glass Budget 916 Empire Bldg., Pittsburgh 22. Pa. BRANDT, Neill M. (G) MeHon Institute. 4400 Fifth Ave. Pittsburgh 13, Pa. BRAXDT. William O. (RFI) Gladding. McBean & Co. 945 Elliott Ave .. W. Seattle 99. Wash. BRANT. Arthur M. (R) 156 Hampden Park Dr., Tiffin, Ohio (Basic, Inc.) BRANT, David G. (RI) 39 VaHey View, Tiffin. Ohio (Basic, Inc.) BRASHARES, C. A. (R) Harbison-Walker Refractories Cc. 1800 Farmers Bank Bldg. Pittsburgh 22, Pa. BRASSFIELD, Henry C. (B) R.R. I, Stevens Rd., Foster, Ohio (General Electric Co.) BRATSCHUX, William R. Universitv of Illinois 204 Cera~ics Bldg., Urbana. 1,1. BRAU:-J', Gary A. Box 827, Alfred, N. Y. BRAY. A. c., Jr. (S) Western Clay Manufacturing Co. Box 176. Helena, Mont. BRAY, Kenneth J. (W) Wenczel Tile Co. Klag & Enterprise Ave. Trenton. N. J. BRAYKOVICH, A. F. (W) 109 Westgate Dr.. Mansfi,!ld, Ohio BraziliaH Ceramic Sociely-see Associacao Brasileira de Ceramica BRECK, Donald W. (B) Linde Air Products Co. E. Park Dr. & Woodward :he. Tonawanda, N. Y. BREEDLOVE, James G. (B1) 703 James Blvd. Signal Mountain, Tenn. (American Lava Corp.) BREENE, George A. (G) Industrial Colloids Co. Emlenton, Pa. BREEZE, Lewis K. (E) SOl E. 288th St., Willowick, Ohio (Glascote Products. Ine,) BREIT\\'IESER, Roben H. (R) 1608 Bunker Hill Rd .. Pueblo. Colo. (Standard Fire Erick Cu.) BRE:'>I:\ER. Robert 1'. (;) T. L. Smith Co., .!~35 :\ . .;2nd St. :'>lilwaukee 11, Wise. BRENNER, Harold M. (E) B. F. Drakenfeld & Co., Inc. Washington, Pa. BRENNER, R. F. (GF) Anchor Hocking Glass Corp. Lancaster, Ohio BRESLICH, Francis N., Jr. .1908 14th Ave., S., Seattle 8, Wash. BRETZ, L. A. (S) 1718 Theodan Dr., Pittsburgh 16, Pa. (NATCO Corp.) BREUER, L. A. G. der Gerresheimer Glashuttenwerke Dusseldorf-Gerresheim, Germany BREWER, Bob (5) Alamo Clay Products Co., Inc. Box 93, Elmendorf, Texas BREWSTER. Gordon F. (G) 807 Ridge Road E., Williamson, N. Y. (Bausch & Lomb Optical Co.) BRIAN, Charles (B) Paper Makers Importing Co., Inc. 44 S. Second St., Easton, Pa. BRIAN, Dick (W) 422 Florida Ave., Chester, W. Va. (Harshaw Chemical Co.) BRIAN. S. Douglas (M) Paper Makers Importing Co., Ine. 44 S. Second St., Easton, Pa. BRICKHOUSE, Robert E. (R) 206 Fairlawn Blvd., Zelienople, Pa. (Johns-Manville) BRIGGS MANUFACTURING CO. (A. J. Raible) 415 W. Seymour Ave. Cincinnati 16, Ohio BRIGHA~{, Ralph V., Jr. (WI) Onondaga Pottery Co. 1858 W. Fayette St. Syracuse 1. N. Y. BRIGHT, Norman F. H. (B) Dept. of Mines & Technical Surveys 522 Booth St.. Ottawa, Ont., Canada BRINCKERHOFF, J. E. (R) Babcock & Wilcox Co. 161 E. 42nd St., New York 17, N. Y. BRINDLEY. George W. (B) Dept. of Ceramic Technology Pennsylvania State University University Park. Pa. BRINKMAN, Robert J. (E) 101 Mossoak Dr., Apt. 3 Dayton 9, Ohio (Frigidaire Div.. General Motors Corp.) BRISBANE, S. M. 40 Riverdale Rd., Hawthorn E2 Victoria, Australia (Commonwealth Scientific & Industrial Research Organization) BRISTOW, Robert H. (WI) 4 Sequoia Rd., R. R. 1 Ballston Lake, N. Y. (General Electric Co.) BRITCHER, Gordon (S) 306 Berkeley Dr., Syracuse 10. N. Y. (Syracuse Pottery, Inc.) BRITISH CERAMIC SOCIETY Federation House Stoke-onTrent, England BRITTAIX. Clifford G. (RJ) Zero Autumn St.. Worcester, :Mass. (Konon Co.\ ROSTER 13 I I j BRITTON, Marvin G. tB) 121 Hornby Dr., Painted Post, N. Y. (Corning Glass Works) BROCKWAY GLASS CO., INC. (F. B. Hess) Brockway, Pa. BROCKWAY, M. Clifford (B) ?661 ~Iedary Ave., Columbus 2. Ohio attelle Memorial Institute) IE. William T. (W) . R. 3. Kittanning, Pa. (Eljer Co.) BROOKE, Stanley Oughtibridge Silica Firebrick Co., Ltd. OUihtibridge, Sheffield, England BROOKOVER. George B. (G) 3735 Maxwell Rd .. Toledo 13. Ohie. (Kimble Glass Co.) BROOKS. ~Iarion E. (S) Bickerstaff. Inc. Box lli8. Columbus. Ga. BROOKS, Robert H. (W) 1738 Pavilion Dr., Pomona, Calif. (Norris-Thermador Corp.) BROSIUS, John P. (G) 403 Emerson Ave., Aspinwall Pittsburgh 15. Pa. (Krieg Piston Ring Co.) BROSKE. William F. (B) AMP Inc.. Eisenhower Bhd. Harrisburg. Pa. BROWER, William 5., Jr. (Wn . National Bureau of Standards, Div.9.0 Washington 25. D. C. BROWN. C. Justus, Jr. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio BROWN. Clarence B. Jr. (M) Hardinge Co., Inc., York, Pa. BROWN, Colin C. (G) 21 Medbury Ave., Cuba. N. Y. (Cuba Cheese & Trading Co.) BROWN, Donald Nicol (G) 4 E. Third St. Corning, N. Y. Coming Glass Works) _ N, Donovan P. (RI) 704 Eldon Ave., Drexel Hill. Pa. (North American Refractories Co.) BROWN. Dwight R. (\\') 5 Edge\\ ood Lane, Levittown, Pa. (Trenton Potteries Co.) BROWN, George L. (M) 27 S. VanDien Ave., Ridgewood, N. J. (Lithium Corp. of America, Inc.) BROWN. George Reuben (M) North American Mfg. Co. 4455 E. 71st St., Cleveland 5, Ohio BROWN. John J., Jr. (SI) Redford Brick Co. 12th & Maury St. Richmond, Va. BROWN, Joseph A. (5) Baltimore Brick Co. 3200 E. Madison St., Baltimore 5. Md. BROWN, Lawrence H. (WFI) Box 255, Miami 2, Fla. (Consultant) BROWN, Leslie (W) Lenox . Inc. 50 Meade St., Trenton 5. 11:. J. BROWN, Meredith C. (5) 609 N. Friends Ave. Whittier. Calif. (Consultant) BROWN. Raymond G. (R) Strategic-Udy Processes, Inc. Box 835. Niagara Falls. N. Y. BROWN, R"~'mond J. (XI) Ceramic Age. Ninth-Chester Bldg. Cleveland 14, Ohio BROWN, Robert \\'. (R) 806 S. Shth St .. West Allis 14. \\"i-c _ Thiem Pro,lucts. Inc.) WK. Roy W. (G) Carborundum Co .. Refractories Di,. . Box 26R. Perth Amboy, !I:. .T- BROWN, Wilbur F. (GF) Libbey-Owens-Ford Glass Co. Rossford. Ohio VOL. 36, :\0. 10 (Hl,i.) BROWN, William E. (R) Box 21i, R.R. 1, Norristown, Pa. (E. J. Lavino & Co.) BRO\\:\. W. Richard 8 :\. Gilmore Bhd. \\'appingers Falls. X. Y. BRO\\"XE. Charles ~l. (GI Libbe\"-Owens,Ford Glass Cu. 1701 E. Broadway. Toledu 5. Ohio BROWKE. Thomas C. (Rl) 2115 Orchard Dr. South Plainfield. N, J. (Titanium Di,;. National Lead Co.) BRO\\":\ELL. \\"ayne E. lSI) State Cni"ersity of Xew York College of Ceramics. at .-\lfred l'ni,. :\lfred. :\. Y. BRO\\":\EWELL. George E. (R I Diamond Alkali CPo 4701 Paddock R.I.. Cincinnati 2". Ohi" BRO\\:\I:\G. William C. I B) :llil"hite :llud Sales Cu. Ion :II & :II Bl.dg.. Houston. Te'"lS BRl"CH~L\S:\, Helmut (\\") Haeger Potteries. Inc., Dundee. Ill. BRUEGGERHOFF, Charles (R) Mexican Zinc. Co., N. Rosita Coahuila. Mexico BRUHN, Hans W. (R) Corha rt Refractories Co., Inc. 1600 W. Lee St. Louisville 10, K}' BRUNNER. Cedric D. (W) 106 W. Union. Rockton, Ill. (Ipsen Ceramics, Inc.) BRUNO, Lucien V. (S) Guignard Brick Works Columbia, S. C. BRUSH. George D. (51) Harrop Ceramic Service Co, 35 E. Gay St., Room 413 Columbus 15, Ohio BRYANT. Eugene E. (EFI) Ferro Corp., 4150 E. 56th St. Cleveland 5, Ohio BRYCE, Homer L. (5) Henderson Clay Products, Box 8iO Henderson. Texas BCCH.-\:\. Charles R. 419 E. Georgia St.. Tallahassee. Fla. BUCHAN, M. A. (RI) A. P. Green Fire Brick Co. Troy, Idaho BlCK. Forrest \Y.. Jr. (E) 35 Broad St., Park Manor Apt. E-S Toms Ri,er. N. J. (Lithium Corp. of America I BUCK GLASS CO, (Royden A. Blunt) 841 E. Fort Ave., Baltimore 30, Md. BlTK. han E., Jr. (E) 1025 Park Ave .. Plainfield. K. J. (Westinghouse Electric Corp.) BCCK. Robert \Y. Box 2248. Georgia Tech. Sta. Atlanta. Ga. BUCKLES, Paul E, (Ml) 860 Brighton Blvd., Zanesville, Ohio (Donald Hagar Ceramic Materials) BUCKLEY, Edward D. (B) Champion Spark Plug Co. 900 Upton Ave., Toledo I, Ohio BlTKNER. O. S. (En Bay State Abrasive Products Co. Westboro. Mass. Bl-EGE. Robert H. (W) Globe-Union. Inc .. 000 E. Keefe .\'e. Milwaukee 1. Wisc. BeEHLER, Bert P. (S) 24.19 Torrington Ave.. Parma 29. Ohic, fCle"eland Builders Supply Co.) BUESSEM, W. R. (B) Pennsylvania State University College of Mineral Industries University Park, Pa. BUFFALO CHINA. INC. I R. E. Gould), 75 Haves Place Buffalo 10. N. Y. . BCGOSH, John (R) E. 1. du Pont de Nemours & Cn Grasselli Chemicals Dept. Experimental 5ta., \Vilmingtoll. De'. BUILDERS BRICK CO. (R. C. Houlahan) 3800 :\inth Ave., 5.. Seattle 8. \\"ash. BlLKLEY. Ronald (B) Socony :llubil Oil Co., Inc. Research & De"e!opment Lab Paulsburo. :\. J. Bl'LL, Dorothy A. Box 95<1 \lfred. :\. Y. Bt!LLARD, Edward R. (E) B. F. Drakenfeld & Co., Inc. Washington. Pa. Bl'LL.-\RD. Keith (GJ I 2 Kinl<'man Terrace. Yonkers. :\. Y. I Corning Glass \\.arks I BlLLOCK. Donald J. (\\') AC Spark Plug Di\". General :llotors Corp. 1300 :\. Dort Hw\,., Flint 2. :\Iich. BULLOCK. Gordon . University of Birmingham Dept. of Physical Metallurgy Edgbaston. Birmingham IS, England Bl::\GE, Fred H. (M) M. A. Hanna Co., Research Lab. Hibbing, Minn. BURCH, Oscar G. (GF) Owens-Illinois Box 1035-1036, Toledo 1. Ohio BURCHENAL, Charles H. (W) Cambridge Tile Mfg. Co., Box 71 Cincinnati IS, Ohio BURCHFIEL. B. M. (RFI) 4458 Rosewood PI., Riverside, Calif. (Consulting Engineer) BURCHFIELD. Paul E. (G) Wyandotte Chemicals Corp. 1609 Biddle Ave., Wyandotte. Mich. BURDICK, Milton D. (WFI) National Bureau of Standards Engineering Ceramics Section Washington 25, D. C. BURDICK. Sidney D. (G) 104 Argonne St., Corning, N. Y. (Corning Glass Works) Bl'RGESS. Blandford C. (WF) Monticello. Ga. (Consultant) BURKE, J. E. (B) General Electric Co., Research Lab. Schenectady. N. Y. BURKE, L. Roger (R) 1203 Peoples Bank Bldg. Pittsburgh 22, Pa. (Chas. Taylor Sons Co.) BURKERT. John G.. Jr. (~IJI) 84 Green St.. Valle\' Stream, ". Y. (Grumman .'\ircraft . Engineering Corp.) BURKHALTER, Edward (51) 7219 Interlaaken Dr. Tacoma 99, Wash. (Builders Brick Co.) BURKS. Cecil M. (RY) 70S Broadway. Steubenville. Ohio (Weirton Steel Co.) BURLEY. Frank N. (W) Sanitarios "E1 Aguila" S. A. Apartado 26RO;'. 'Iexico 14. D. F. BURLEY, Newton Ray (W) 1864 Dresden Rd., Zanesville, Ohio (Burley Clay Products Co.) Bl'RLI:\GA:>lE. Howard G. (El 16031 Francisquito A,e. La Puen:e. Calif. (Carrier Corp. i Bl'R:\. Harold J. D. Burn Fireclay Co. Ltd., 71i Jesmond Rd, :\ewcastle-upon-Tync 2. Enghnd BVRNAND, Guy M. (Life) Messrs. Johnson, Matthey & Co.. Ltd. 78, Hatton Garden London. E. C. I, England BCR:\S. Frederick L. (W) 400 Gran,h'iew Dr. Highland Village. Zanesville. Ohi,. I :\ational Plumbing Potter~. Inc.) ROSTER l.i I I, J  !:. ..' t ,L~: - o ' - ..,.."..,,...,,.,,..,...~,...,..,,..~_:_:~~==~=~ o 200 400 600 800 1000 12001400 16O.!l180020002200 2400 MEAN TEMPERATURE - F I : I FIG. 1 Thermal Conductivities ofVarloUIWeight Refractorl. There is a close relationship between the weight of the firebrick and its thermal conductivity. In general, the lower the weight, the lowe!; the conductivity-tberefore, . the better it is as an insulator. The chart shows this relationship between two insulating . firebrick of 1.5 pounds per 9 inch straight and 3 pounds per 9 inch straight and a fireclay brick. weighing from 7* to 8 pounds per 9 inch straight. . ' Are you using, or are you planning to use refractory insulation in the construction of your glass melting fur. nace? If so, avail yourself of all the benefits of insulation -get the most for your insulating refractories dollar. areThe maximum in insulating value plus the refracton ness needed for the temperature conditions involved important considerations in the selection of the proper refractory insulation. After weighing these consideratiC Di . and evaluating different types of materials, many glaa manufacturers have selected lightweight B&W Insulating Firebrick to provide these benefits. -". . Here's why. B&W Insulating Firebrick are lighter iii .,' weight than any other insulating. firebrick, which mean. . they have low conductivity, insulate better (see Figure u:~:: This reduces radiation, which is lost heat, and resultS ~::y substantial fuel savings. It also means improved wor1dDg" conditions around the tank, an additional benefit for you : and your employees. ..' Lightweight B&W IFB save in other ways, too. TheY can be bonded with firebrick walls to reduce air leakage and infiltration, thus further reducing fuel consumption. B&W KaoUte for Forehearth Channels For quick, easy installation, B&W Kaolite is recom mended for insulating side.....all and bottom forehearth chan nels. This light.....eight insulating castahle not only goes in fast, but also provides excellent insulating properties. For your next tank rebuild, call in your B&W represent ative. He will he glad to give you the facts on Insulating Firebrick and Kaolite Insulating Concretes. I II lAW UfRACTORIES PRODUCTSI B&W Allmul Firebric:k B&W 80 Firebric:k B&W Junior Firebric:k B&W Insulating Firebric:k B&W Refrac:tory Castables, f Plaltic:s and Mortarl B&W Siric:on Carbide BURKS, Henry K" Jr. tS) 1620 Waverland Dr" Macon, Ga. (Burns Brick Co,) BURNS, R. S, (E) Armco Steel Corp" Research Library Middletown, Ohio BURRISS, Wiliiam K. (G) t lnsolidated Feldspar Dept. ernational Minerals & emical Corp, N, Wacker Dr., Chicago 6, Ill. BURROUGHS, F, H, (W) Box 1329, Trenton 7, N. J. (Star Porcelain Co.) BURROUGHS, Jack E, 5508 Taylor Rd" FOlrt \\'orth 14. Texa5 BURTON, Howard B. I G) 1618 Arlington Ave., St. Paul 17, ~linn. (Minnesota Mining & Mfg. Co.) BURTOX. W. A. (S) 803 E. Fourth St., Mt. Pleasant, Texas BURWINKEL, Lawrence G., Jr. (G) Pennsylvania Glass Sand Corp. Two Gateway Center, Pittsburgh 22, Pa. BUSH, James \\', lSI) 1255 Cardinal Dr" Pittsburgh 16, Pa. (Natco Corp.) BUSH, Ralph R. (M) 520 McKinley St., North Canton, Ohio 'Bonnot Co.) BUSH, W. G. & CO. (John S. Herbert) 174 Third Ave., N., Nashville 3. Tenn, BUSHONG, R. M. (R) National Carbon Co., Tiffin & Town Sts. . Fostoria, Ohio BUSSEY, Donald A. (R) Kaiser Aluminum & Chemical Corp. Refractories Plant Moss Landing, Calif. BUSTEED, Donald J. (R!) , 8 Janet Circle, Shrewsbury, Mass. (Bay State Abrasive Products Co.) BUTCHER, L. H., CO. (George J. Middleton) 3628 E. Olympic Blvd. Los Angeles 23, Calif. OVICH, Edward M. (R) 48 E. 97th St., Chicago 17, Ill. Muter Co.) BUTLER, C. Edward (RI) Crucible Steel Co. of America 234 Atwood St" Pittsburgh 13, Pa. BUTLER, F. W. (W) Akron Porcelain Co., Akron 14, Ohio BUTLER, Sidney R. Pennsylvani~ State University 305 D, Mineral Industries Bldg. University Park, Pa. BUTLER, Thomas J.; Jr. (5) Box 279, Austin 62, Texas (Elgin-Butler Brick Co.) BUTTERFOSS, Bruce W. 1600 Highland :h'e" Palmyra, N, J. BUTTERWORTH, William N. (G) General Refractories Co. 950 Leader Bldg., Cleveland 14, Ohio BUTTLE, Robert L. (W) 65 Greenbriar Dr. Williamsville 21, K. Y. (Speer Carbon Co.) BUTTON, Daniel D, (BJ) 3286 Dabne\' St., Altadena, Calif. BUXTON, Jua~ c. Santa Clara 173, San Isidro Buenos Aires. Argentina (Ferrum, S. A.) BUZARD, Fred T. (M) Bell, Pine & High Sts., Plymouth, Ohio (Fate-Root-Heath Co.) BYRNS, Alva C. (R) Kaiser Aluminum & Chemical Corp. 1924 Broadwav, Oakland 12, Calif. BYRON. Julian K. 750 Fowler St.. K. W., Atlanta, Ga. o,~,"ANILLA5. Gon"l" (5' Puerto Rico Clay Products Corp. Box 4729, San Juan, Puerto Rico VOL. 36, No. 10 (1957) CABLE, John A. (W) 1011 22nd St. K. E" Canton 4, Ohio (Vnited States Ceramic Tile Co,) CABLE, Margaret (DF) - 1520 San Miguel Ave. Santa Barbara, Calif. CABLE, Stephen J. (W) 3615 Eaton, X.\\'.~ Canton 9, Ohio (Cnited States Ceramic Tile Co,) CABOT, GODFREY L., INC. iFrank E, Daley) 46 Bayard St. :\ew Brunswick, N. J. C\CCAMISE, Charles T. (B) Electro Metallurgical Co" 137 47th St. Niagara Falls, N.'y. CACCIOTTI, Joseph J. (B) 38- Illona Dr.. Greenhills, Ohio li;eneral Electric Co.) C\HILL, Robert T, (R) Corning' Glass \\'orks, Corning, X. Y, C\HOO:\. Harold P. (S) Interstate Brick \:0, JIU(I S. 11th E,. Salt Lake Cit)', Utah C:\HOO:\. John B" Jr, tB) 6i 3 S Livermore :\ve, Livermore, Calif. Il"ni\'ersity of California) (,\1:\. Robert W. Electro Metallurgical Co. Box 351, Ashtabula, Ohio CAITO, A. M. (RI) Basic, Inc., Maple Grove, Ohio CALli., Charles F. (G) 144 Hoover Rd., Rochester 17, N. Y. (Bausch & Lomb Optical Co.) CALABRESE, Donald W. Box 168, Alfred, N. Y. C.\LDWELL, Smiley, Jr. (G) 717 Xewberry Rd., Nashville, Tenn. (Ford Motor Co.) CALDWELL, Smiley M., III 717 Newberry Rd. Brook Meade Subdivision Nashville, Tenn. CALDWELL, William D, (EI) Perfection Industries, Inc. 1135 Ivanhoe Rd., Cleveland 10, Ohio CALLAHAN, H. D. (WFI) United States Ceramic Tile Co. East Sparta, Ohio C.\LLAHAX, Robert M. (W) 4553 Seville Ave. Los Angeles 58, Calif. (Solar Mfg. Co.) C.\LLI~AX, Edward E. (RFI) 1386 Spruce St., R. R. 3 ~ orristown, Pa. IAlan \\'ood Steel Co.) CALVA, Roberto (B) 2945 S. Bonn St.. Wichita 13. Kans, I Boeing Airplane Co.) C\LVER. James L. (M) Virginia Di\. of Mineral Resources Box 3667, Universitv Sta, Charlottesville, Va.. CAMERON, David G. (M) Haller-Inc. 684 Ann Arbor Rd., Plymouth, Mich. CAMERON, Robert A. (G) Corning Glass Works, Corning, N. Y. CAMPBELL, C. V. (M!) 444 Florida Ave., Chester, W. Va. (Ferro Corp.) CAMPBELL, Edward S, (G) I'orthwestern Glass Co. 5801 E. Marginal Way, Seattle 4, Wash. C.\~lPBELL. Frank, Jr. 2032 Eastlake, Seattle 2. Wash. CAMPBELL, G. Donald (G) 621 Shelby St., Shelbyville, Ind. (Pittsburgh Plate Glass Co.) CAMPBELL, Ian (B) California Institute of Technology Div. of Geological Sciences 120 I E. California St. Pasadena 4, Calif. C:UfPBELL, J. Douglas (W) Lithium Corp. of America, Inc. 540 Lincoln Bldg., 60 E. 42nd St. Xew York 17, N. Y. C.\MPBELL, Robert ]" Jr. (B) l'niversity of \"ashington 304 Roberts Hall, Seattle 5, Wash, CAMPBELL, Robert M. (WFl) Alfred, K. Y. (State university of New York, College of Ceramics) CAMPBELL, Tom W, (R) Box 303, Poland, Ohio (Electro Refractories & Abrasives Corp,) CAMPBELL, Van E. (W) 363 Highland Ave" Wadsworth, Ohio (Ohio Brass Co,) CA~lPOS, F. Torres Fabrica Xacional de Vidrio, C. A. Box 1049. Caracas, Venezuela CANADIAN CERAMIC SOCIETY (Miss L. C. Keith), 49 Turner Rd. Toronto 10, Ont.. Canada CAl' FIELD. J, J, (EF) 2909 Orlando Dr.. :\liddletown 20, Ohio (Armco Steel Corp,) CANNING, Robert (G) 202 Fox Chapel Rd., Pittsburgh 38, Pa. (Pittsburgh Plate Glass Co.) CANNON, John D. 2167 Highview Rd., S. W. Atlanta 11, Ga. CAPEK, Ra}'mond G. 2646 S. Clarence Ave., Berwyn, Ill. CAPELLMAN, John J. (R) 1118 Highland St., Tarentum I, Pa. (Pittsburgh Plate Glass Co.) CAPPS, Webster (G) National Bureau of Standards Washington 25, D. C. CARBORUNDUM CO. (Paul N. Gillon), Library 1-2 Niagara Falls, N. Y. CARDER, Frederick (Honorary, GF) Corning Glass Works Vycor Div., Corning, N. Y. CAREY, J. Sheldon (D) Dept. of Design, University of Kansas Lawrence, Kans. CARINI, George F, 628 S. Seminole, Okmulgee, Okla, CARL, John E, (GI) Corning Glass Works, GreeD\'ille, Ohio CARLSON, Joseph A. (S) 50 Hawthorne St. San Francisco 5, Calif, (Kraftile Co,) CARLSON, Robert H. (W) Universal-Rundle Corp. Box 960, New Castle, Pa. CARLSON, William G. (RI) 175 Glenfield Dr., Pittsburgh 35, Pa. (Westinghouse Electric Corp.~ CARLYLE, Edward C. (S) Box 128, Ironton, Ohio (Carlyle Tile Co.) CARNAHAN, Thomas D. (M!) B. F. Drakenfeld &: Co., Inc. Box 519, Washington, Pa, CARNES, Kenneth C. (G) Toledo Engineering Co., Inc. 3001 Sylvania Ave., Toledo 13, Ohio CAR:\IGLIA, Stephen C. (B) Atomics International Div.. NAA 21600 Vanowen St. Canoga Park, Calif. CAROTHERS, Harr}' S. (M) H. C. Spinks Clay Co., Inc. 1000 First National Bank Bldg. Cincinnati 2, Ohio CAROTHERS, R. B. (MF) H. C. Spinks Clay Co., Inc. Box 829, Paris, Tenn. CAROTHERS, Richard B., Jr. (M) H. C. Spinks Clay Co., Inc. Box 829, Paris, Tenn. CAROTHERS,T. E. (M) Gladding, McBean &: Co. 2901 Los Feliz Blvd. Los Angeles 39, Calif. ROSTER 17 CARPE:\TER, F. Scott. Jr. (:\1) White Pigments Division Godfrey L. Cabot, Inc., 77 Franklin St. Boston 10, !IIass. ~.\RPE:\TER, R. ~1. (5) Kelsey Fergo,,,,, Brick Co. East \\'in,bur Hill. Conn. C.KTER, \\'oodro\\' (E) rows Porcelain Enamel Corp. gdon Rd. & Penn R. R. Cincinnati 13. Ohio CARR-LOWREY GLASS CO. (Norman R. Beck) Baltimore 3, Md. CARROLL. Jerry \\'. lW) R. R. I., Cedar Falls, Io\\'a (American Radi:ltor & Standard Sanitary Corp.) ::ARROLL, Vv'illiam F. I \\') 3499 ~Ic:\allr .\\e ...,\ltad~na. Calif (Florence Ceramics Co.) CARRVTHERS. John L. (SFI) Lord Hall, Ohio State l'ni\'ersitv Columbus 10, Ohio . CARSOK, Lee R (SI Box 30j, Madison. :\. C. (Pine Hall Brick & Pipe Co.) CARTER, D. R. (M) Eagle-Picher Co. .. .Americas Bldg., Cincinnati I, Ohio CARTER, F. B. (WI) TiffiD 12, Ohio ., (American-Standard Corp.) CARTER, George J. '.'11>202 20th N .E., Seattle 55, Wash. CARTER, Gerard T. (W) Oakland St., R.R. I, Box II-A _.Mattapoisett, :\1 ass. .(Cornell-Dubilier Electric Corp.) CARTER, Herbert D. (WFI) 3351 Dorchester Rd. Shaker Heights 20, Ohio (Harshaw Chemical Co.) CARTER, R. (B) ceGeneral Electric Co., Research Lab. enectadY. ~. Y. RIGHT, S. V. (SI) 4 Victoril\ Ave .. Corona, Calif. (Jordan Tile Mfg. Co.) CARVLIN, George ~1.. Jr. (R) Koppers Co., Inc.. Koppers Bldg. Pittsburgh 19. Pa. CASAMO, Charles C. (G) Sylvania Electric Products, Inc. Emporium, Pa. CA$E. MANUFACTURING CORP. (Willard G. Young) 1000 W. Pine St.. ~obinson, Ill. CASHIN, William :\1. I B) 151 Mann Ave .. Cohoes. X. Y. (General Electric Co.) CASPER, Richard L. Box 787, Alfred. :\. Y. CASSADY, Bert L. (R) SUS S. Lewis Ave., Tulsa 15, Okla. CASTERLINE, Dale R. (M]) 3897 W. 33rd St.. Cle\'eland 9, Ohio (Ferro Corp.) CATON, Milton W. (RF) 22490 Nevada Ave., East Detroit, Mich. (Ceramic Div., Champion Spark Plug Co.) CAVANAUGH. Clifford E., Jr. 1332 Porter St .. Phila.rlelphia -18, Pa. CAVANAUGH, D. J. (WI) 822 32nd St., Parkersburg, W. Va. (United States Ceramic Tile Co.) CAYFORD, James M. (EI) 1317 Ridge Ave., Steubenville, Ohio (Toronto Paperboard Co.) CECIL, Gowan L. (\\') Lone Star Ceramics Co. 14215, Dallas 3-1, Texas Paul S. (E) rvice Porcelain Enamel, Inc. e Brill & Christie Sts.. Xewark 5, X. 1. ENTRAL SILICA CO. (E. C. Sawye;) 806 Market St., Zanesville, Ohio VOL , 36v". O. ItJ ( II.'.J--f ) CERAMIC ASSOCIATION, JAPAN (Yogyo Kyok\\'ai) Xu i. Shiba Xishikubosaknra -Ca\\a-Ch". ~!inatn-l\:u. Tokyo, Japan CERAMIC COLOR & CHEMICAL MFG. CO. ('\!. F. Wenning) Box 297. Kew Brighton, Pa. CERAMIQUE MAASTRICHT, N. V. (C,)mt~ 1.. de :\leeus d.-\rgenteuill I'o,;tl>u,; 103, ~!aastricht, Xetherbll,ls CERMAK, Fr:lnk (\\'F) 15-12 l'nion St., Schenectady 9, X. Y. CER~1.\l\:. (;~"r~l' F. (BI Bcrl"hire l'ill'llli""k Illc. -fjOiJ Ellclid .\\C .. Cle\~lalld. Ohi" CERXY. Jl',cpl> J. lEI j226-28 \\'. 26th St. Chicago jO (Cicero) III. (Resistors. Inc.) CEReLL!, Xicholas F. 73 Forest Ave., Caldwell, ?\. J. CHADEYROX, A. A. G. Cleveland :\!agnesite & Refractory Co. Ltd. Kormanby Brickworks, Kormallby Middlesbrough, York, England CH:\I, KiKon Frazar & Co., Inc. 50 Church St., Xew York i. X. Y. CHAMBERLAIX, James M. W. (B) C. S. Stoneware Co., Box 3jO Akron 9, Ohio CH.UIBERS. Fred (1) Kational Gypsum Co., Luckey. Ohio CHAMBERS, Gordon H. (:\1) Foote Mineral Co., 18 W. Chelten Ave. Philadelphia 44, Pa. CHAMPION SPARK PLUG CO. CERAMIC DIV. (James S. Owens) 8525 Butler Ave., Detroit 11, Mich. CHANTLER, L. W. (R) Standard Lime & Cement Co. Millville, W. Va. CHAP:\!.\:\. Alan T. 2063 Jane A\e .. Columbus 19. Ohio CHAPMAK, ~ Manh (W) Harshaw Chemical Co. 626j Wiehe Rd., Cincinnati 13. Ohio CH.\RBOXXIER, \\'illiam P. (RI) Walsh Refractories Corp. 101 Ferry St., St. Louis 7, Mo. CHARL.\XD. Tel L. (RI) 316 Elias Dr .. Pittsburgh ,lj. Pa. I\\'estinghouse Electric Corp.) CH.\RLES. Richard J. (G) General Electric Co. Research Lab.. Box 1088 Schenectady, X. Y. CHARLTON, Alex E. (W) Photoceramics, Inc. 1822 Western Ave., Cincinnati 14, Ohio CHARTERS, Melvin L. 12 Marvin Ln., New Brunswick, N. J. CHARV.\T. Fedia R. (B) Electro :\letallurgical Co. :\! etals Research Labs. Box j80, Xiagara Falls, X. Y. CHASE, Dana (EF) Dana Chase Publications Elmhurst National Bank Bldg. York St. at Park Ave., Elmhurst, Ill. CHASE, Hany K. (R) 4040 Lakeshore Ave., Oakland, Calif. ( Western Refractories Co.) CHATTAHOOCHEE BRICK CO, (Paul M. Clark) Chattahoochee, Ga. CHATTANOOGA GLASS CO. (joe G. Venable) Chattanooga 10, Tenn. CHAUMEIL, Frederic Veneries de Bagneaux et Appert Ferres Bagneaux siLoing Seine et Marne, France CHESS. James S. (G) Pittsburgh Plate Glass Co. One Gateway Center, Pittsburgh. Pa. CHESTERS, John H. (F) Cnited Steel Companies Ltd. Research & Development Dept. "Swinden Laboratories," :\!oorgate Rotherham, Yorks, England CHICAGO POTTERY CO, (J. S. Clifford) 1920 Clybourn Ave. Chicago 14, Ill. CHICAGO VITREOUS CORP. (William Hogenson) 142j S. 55th Court Cicero 50, Ill. CHILCOTE, Joseph H. (R) 1907 16th St., K., Arlington I, Va. (Bureau of Ships, Navy Dept.) CHILD, Henry C. \\m. Je,;,;op & Sons Ltd. R~,;earch Lab,; .. \\'histon (;range Rotherham, Ynrks, England CHILD, James L., Jr. (5) Hancock Brick & Tile Co., Box 4jO Findlay, Ohio CH Il.DS, ClaYl<.It' C. (B I 2257 N. York St., Owensboro, Ky. (General Electric Co.) CH I LDS. Edwin E .. Jr. (E I 160-1 Greenspring Dr., Luth~n ille. :\Id. (:\Iartin Co.) CHILDS, Gary D. 2j :\Iadison St., \\'ells\'ille. X. Y . CHIX, Tze-Ching .\rgilas e ~f inerios Industriais "Aremina" S. A. Rau Barao de Jaguara 102-1-1030 Sao Paulo, Brazil CHING, Tung Rey (J) 31 Soares Ave., Grd. Fir. Kowloon, Hong Kong (I-Feng Enamelling Co. (H.K.l. Ltd.) CHIOCHETTI, Vincent E. J. (G) -13 !\fonroe St.. Honeoye Falls. X. Y. (Bausch & Lomb Optical Co.) CHISHOLM, BOYD & WHITE CO. (Robert A. Ebersole) 610 W. 57th St. Chicago 21, III. CHORMANN, O. 1. (E) 195 Gregory Hill Rd. Rochester 20, N. Y. CHOTHIA, Boman S. Wadia Bldg., 137 Queen's Rd. Bombay, India (British Hartford Fairmont Ltd.) CHRISTENSEN, Carl J. (B) University of Utah Salt Lake City I, Utah CHRISTENSEN, Chr. Royal Copenhagen Porcelain Manufactory & The Faience Manufactory Aluminia Smallegade -Ij, Copenhagen F., Denmark CHRISTMAX, Brian B. (W) 48 Norris Ave., Metuchen. N. J. (Rheem Manufacturing Co.) CHRISTMAN, C. E. (E) Federal Enameling & Stamping Co. Pittshurgh, Pa. CHRISTMAN, H. M. (RI) 1514 11th St., N.E., Massillon, Ohio (Massillon Refractories Co.) CHRISTOPHER, A. B. (5) Chambers Bros. Co., 52 & Media Philadelphia 3I, Pa. CHU, Gordon P. K. (E) Research Laboratory, Pfaudler Co. 1000 West Ave., Rochester 3, N. Y. CHl'TTER. George A. (G) Middle Haddam Rd.. Portland. Conn. (Harper Electric Furnace Corp.) CIA. MEXICANA DE REFRACTARIOS A. P, GREEN, S. A. (H. Fetter) Hamburg(> 51, Apartado Postal 71 Bis Mexico. D. F. CICHOWSKI, V. J. (E) Fusite Corp., 6000 Fernview Ave. Cincinnati 13. Ohio CINCINNATI MILLING PRODUCTS DIV.. CINCINNATI MILLING MACHINE CO. (Philip O. Geier. Jr.) -1701 :\Iarburg :\\'1'., Cincinnati 0, Ohio RtlSTER If! :~~~~',~~~- ~;~~~;: PPER, Gean P. : "'/' Tabor, Iowa ..' E, Robert L. t SFI) }>'.\~i' 212 Rector St., Perth Amboy, ~ . .1. (Laredef Corp. of ~ew jer,ey) , . K, Alec W. ~~::{'.Beatson, Clark & Co., Ltd. .' ,. 'Rotherham, York, England RK, Arthur R. (B) ox 352, Far Hills,~. J. '!l"~,.,: ..(Foxlyn Laboratorie,) ,~~RK, C. Burton \ B) ':#'J.. "1766 Meadowcrest Dr. .,,(:..... Pittsburgh 28. Pac "".;?-:'. (Harbison-Walker Refractories Co', ~'.:CLARK, Daniel J. (S! ,'J":'.:. Vitro Mfg. Co., 60 Greenway Dr. ;:.~:,:", Pittsburgh 4. Pa. /'CLARK, Horace !\. I R I "'. .:Refractory & Insulation Corp. 120 Wall St.. ~e\\ York 5. ~. Y ':. CLARK, James L. (S I /_~;:: ..:. 150 Yates St.. Oem er. Colo. . ':.>.';': (Robinson Brick & Tile Co. i "'.' ARK, John D. (XFII ~<~Foote Mineral Co., IS \\'. Chelle!] .\IC 'Philadelphia 44, Pa. Paul M. (S) ..Chattahoochee Brick Co. 'Chattahoochee. Ga. K, Paul W. ~rown-Firth Research Labs. : .rincess St. Sheffield 4, England . Richard E. (MI) ".'., "~I.04 Dunhaven Rd . DalIas,.Texa; ~:C'c(R. T. Vanderbilt Co.. Inc.) .~~K; Thaddeus J. E. (W) ~~'r:J113Elmore Ave .. Trenton 9. X. J. .:':;"(Star Porcelain Co.) :q.~RKi W. D., Jr. (R) c,,;,-'::":.P. Green Fire Brick Co. ~;';'<~exico, Mo. ,:f.~ARKE, Ford K. (G) tiiA-PhiICo Corp., Lansdale Tube Co. Oil. us...~.:~,.::c;burch Rd., Lansdale, Pa. Karl M. (W) osaic Tile Co. Pershing Rd. esville, Ohio . ,Y. Wilfred (E) . Kaiser Metal Products, Radcliffe St. . Bristol, Pa. CLAYBURN-HARBISON LTD. (R. M. Hungerford) '850 W. Hastings St. Vancouver 9. B. c.. Canada CLAYCRAFT CO. (Phillip W. Tefftl Box 866. Columbus 16. Ohio CLAYPOOLE. Stewart A. (G) R.R. 2, Painted Post. N, Y. (Corning GllI~s Works) CLEEK. Given W. (G) National Bureau of Standards Washington 25, D. C. CLEMENS, August. Jr. (M) 205 E. Gittings Ave., Baltimore 12. 11d. :(A.rcl'ods Corp.) CLEMENS. Eugene C. (SFI) Cannelton Sewer Pipe Co. Cannelton. Ind. CLEVELAND. George B. (B) California Div. of Mines 217 W. First St. Los Angeles 12, Calif. CLEVELAND MUSEUM OF ART (William M. Milliken) C 11150 East Blvd .. Cle\'eland Ii. Ohi .. LEVELAXD, Theodore K. (G) Philadelphia Quartz Co. of Califortlia Seventh & Gravson Sts. Berkeley 10, C~lif. CLEVENGER, Thomas R. Massachusetts Institute of Tech. Rm. 20-C-001, Cambridge. Mass. _ ER, William R. (G) 1 N. Elm St. Lincoln, Ill. Pittsburgh Plate Glass Co.) CLEVERL Y. Robert B. (SIl 133 Grant St.. Dover. Ohio (Universal Sewer Pipe Corp.) Val. :36. ~ o. to (l n.j7) CLEWS, Francis H. British Ceramic Research Assn. ~lellor Laboratories, Shelton Sloke-on-Trent. England CLIFFORD. J. S. (W) Chicago Pottery .co. 1920 Clybourn Ave., Chicago 14, Ill. CL1\'E. Carl F. IBI Carborundum (\1. ~iagara Falls. ~. Y. CLIXE. 1. R. (S) Western Brick Co., Danville, Ill. CLI\'E, Robert \\, .. (\\'1) 37i ~lain St.. East :\urora. ~. Y. I Syracuse China Corp.) CLIPPER DIAMOND TOOL CO., INC. I Joseph Klipper) 345 Hudson St. ~ew lork 14. \'. Y. CLOSE, Paul (G) Owens-Illinois Box 1035-6. Toledo, Ohio CLOCGH, Philip J. (R) Xational Research Corp. iO Memorial Dr.. Cambridge 42, ~lass . CLOWES. E. J. (W) Clowes Ceramic Corp. 3711 Calhoun Ave. Chattanooga 7, Tenn . C)IOLIK. Clarence G. (B) 4403 Sheraton Dr. Parma 29. Ohio (Clnite Research Center) COATES, Bill (SF) Coates Co., Box 935, Austin 65, Texas COBLE, Robert L. (B) General Electric Research Lab. Box 1088, Schenectlldy, ~. Y . COCA-COLA CO. I )larvin Q. Wheeler) Engineering Dept. Drawer li34. Atlanta 1. Ga. COE~. Bernard (W) Woodbridge Sanitary Pottery Corp. 500 Green St., Woodbridge. ~. J. COFFEEN, William W. (EFI) 1024 Boulevard, Westfield, K. J. (Metal & Thermit Corp.) COFFIX. Leon B. (S) Andover, N. Y. rAlfred University) COGEN, Saul (S) Davidson Brick Co.. 4701 Floral Dr. Los Angeles 22. Calif. COGHILL. H. T. (X) 2028 Collingswood Rd. Columbus 21. Ohio (Refractories Div. Carborundum Co.) COHEN. Aaron (S) Box 405. Willamina, Ore. (Willamina Clay Products) COHEN, Alvin J. (G) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. COHEN, Arthur E. (G) Sylvania Electric Products. Inc. Cottage Place, Mineola, N. Y. COHEK. Bernard (G) 130 Spruce Wood Circle Geneva, N. Y. (Sylvania Electric Products, Inc.) COI~. R. H. (E) Ingram-Richardson. Inc. Jefferson Rd.. Frankfort. Ind. COLCORD. John E. (RJ) li06 Sherman .-he.. South Rend. II1'!. I Bendix :\.\'iation Corp.) COLE. David L Campmeeling Rd .. Topsfield. ~la"". COLE, G. Percy (G) Dominion Glass Co.. Ltd. Box 190, Montreal. Que. Canada COLE. Harold R. (R) Xational Carbon Co. Town St.. Fostoria, Ohio COLE. Sandford S. (BFI) Titanium Division. National Lead Co. Research Dept . Box 58 South Amboy, N. ]. COLE. Sandford S., Jr. (WI) Power Tuhe Div. Raytheon Mfg. Co. Waltham 54, Mass. COLEMAX. Bruce G. J & AP Scott Ltd. Box 209, Dunedin, Kew Zealand COLEMAN, Caruthers A. (S) Big Run Coal & Clay Co. 133 N. Limestone St.. Lexington, Ky. COLEMAN, 1- C. (G) 3746 Mapleway Dr.. Toledo 14. Ohio (Kimble Glass Co.) COLDIAX. Robert L. (SI) 20631 Greenwood, Olympia Fields, Ill. (Chicago Brick Co.) COLE)I.\~. Th.)lllas CBox 5665. Coll~ge Sla.. Ral~igh. X C. CULLl\'S. Frank P. (GI Libertv Glass Co. Collin~ Bldg.. Sapulpa, Okla. COLLINS. G. F. (Gl Pittsburgh Plate Glass Co., Box i 50 Henryetta. Okla. COLLIXS. Paul F. (WI) Austenal. Inc. 7001 S. Chicago Ave., Chicago 3i. Ill. COLLI~S. William G. (BI) Johns-Manville Corp .. Waukegan. Ill. COLONIAL INSULATOR CO. I R. W. Hemphill, Jr.) 945 Grant St.. Akron 11. Ohio COLOSKY. Benjamin P. IRJ) 322 Ridgdale Rd., Louisville. Ky. (Corhart Refractories Co.) COLUMBIA FIRE BRICK CO. (M. L. Hamaker) 612 First National Bank Bldg. Canton 2, Ohio . COLUMBIA-SOUTHERN CHEMICAL CORP. (R. W. Miller) One Gatewav Center. Pittsbllf/olh 22. I'a. COMBUSTION' ENGINEERING. INC. RAYMOND DIV., (A. R. Jenny) 1315 N. Branch St.. Chica~o 22. TIL COMEFORO. J. E. (W) Frenchtown Porcelain Co. Frenchtown. N. J . COMER, Richard L. (W) 6161 Springdale Blvd. Grand Blanc. Mich. (A C Spark Plug Div. General Motors Corp.) COMMERCIAL DECAL, INC. (Alfred Duhrssen) Box 759 East Liverpool. Ohio COMMERCIALORES, INC. (Albert R. Eckel) Clover, S. C. COMMONS, Charles H., Jr. (WFIl Forest Lane. R. R. 2, Malvern. Pac (Foote Mineral Co.) COMPAGNUCCI. Julius P. (W) Bay Ridge Specialty Co., Inc. Stokes Ave.. Trenton 10, N. J. COMPANHIA PAULISTA DE MINERACAO (Eduardo C. Simonsen) Caixa Postal 3.008, Sao Paulo, Brazil CONARD, John B. (S) 600 Hawthorne Lane. Mansfield. Ohio (Richland Shale Brick Co.) CONDON. Edward U. (G) 6604 Waterman Ave . St. Louis 5, )10. (Consultant) CONE. Carroll (G) 1387 Virginia Ave. Columbus 12, Ohio (E. I. du Pont de Nemours & Co.) CO~l'\. Willi' ~l. MaxPlanckInstitut f. SilikatfoTSchnung. Xeunerstr. 2 Wuerzburg, \Vestern Germany CONNELL, George A. (B) Pacific Coast Borax Co., Box 9128 Station S, Los Angeles 5, Calif. CO~NELLY, Daniel S. (R) 2801 N. Park Blvd. Cleveland Heights 18. Ohio (Ohio Crankshaft Co.) CO~NOR. Jo~eph H. 12 Maple St.. Hornell, X. Y. CONOVER, Ray C. (Rn Gladding, McBean & Co. 1006 Alcalde Way. Glendale 7. Calif ROSTER 21 '-- CO:\RAD, Charles E., Jr. (~I) 5525 Toledo ..\Ye., S. E. Charleston 4, \\'. \'a. (Furnace Engineering Curp.) CONRAD, Keith (G) Owens-Illinois Box 1019, Oakland 4, Calif. CONROE, Barden A. (G) Gorton St., Corning. X. Y. rning Glass Works) LIDATED FELDSPAR DEPT. INTERNATIONAL MINERALS & CHEMICAL CORP. (William K. Burriss) 20 K. Wacker Dr., Chicago 6, Ill. CONSOLIDATED GLASS WORKS, LTD. (I. Doncn) Box 562 Germiston, Trans\'aal, South Africa CONSUMERS GLASS CO., LTD. (John N. Jordan) Box 456, Station B Montreal, Que .. Canad" CONTARDI. William A. (\\'1) 206 Highland Ave., },Ietuchen, N. J. (Automatic "Hg. Co.) CONTINENTAL CAN CO.. INC. HAZEL-ATLAS GLASS DIV. (Francis C. Flint) 15th & Jacob Sts., \\'heeling, W. Va. COOK, A. W. Hargreaves Mill Ltd., Botteslow St. Hanley, Stoke-on-Trent, England COOK, Eucene M. (G) 509 Broadlawn Terrace, Vineland, N. J. (Kimble Glass Co.) COOK, Herman L. (EF) 1555 Beardsley Ave., Muskeg()n,.Mich. (Norge Div., Borg-Warner Corp.) COOK, Louis S. 4085 Highland Dr. Salt Lake City 7, Utah COOK, Maurice D. 4071 Highland Dr. Salt Lake City, Utah COOK, Ralph L. (EFI) 204 Ceramics Bldg. University of Illinois, Urbana. 111. C .W. Howard (Rl 131. Xorris, Tenn. ak Ridge Xational Lab.) COOKE, Charles C. (G) 2858 S. 109th St., Toledo 11, Ohio (Owens-Illinois) COOKE. Da\id C. (\\'f) 404 Strawbrirlge A,c .. \\'e<tmont. X. J. (Unh'ersal-Runule Corp.l COOKE, William C. (G) Blue Ridge Glass Corp. Kinl1sport, Tenn. COOMBS, W. M. (G) Owens-l11inois Bridgeton Plant No. 14, Bridgeton. N. J. COOPER, Alfred R. 45 Orchard St., Jamaica Plain, ~Iass. COOPER, George I. (W) 1329 E. Vernon Rd. Philadelphia 50. 1'a. (Signal Corps Supply Agency) COOPER, Roger C. (E) Fusite Corp.. 6000 Fernview Ave. Cincinnati 13, Ohio COOPER, Walter W. (M) Dow Chemical Co. Inorganic Chemicals Sales Midland. Mich. COOPER. William G. f),Tl Box 204. StrongS\'ille 35. Ohio (Ferro Corp.) COOPERSTEIX. Ravmon,[ (B) 8798 Eldora Dr.. 'Cincinnati 31i, Ohio (General Electric Co.) COORS PORCELAIN CO. CH. W. Ryland) 600 Xinth St. Golden. Colo. aCOPE, William E. (M) clay Machine, Inc. 146. Sebring, Ohio AND, R. Spencer C. W. T. Copeland & Sons Ltd. Spode Works Stoke-on-Trent. England VOr.. ~ti, ~(). 10 (!!),ij) CORAH, Donald E. Box 226, Alired, K. Y. CORBAN, Wilbur H. (W) 3198 Dresden Rd., Zanesville, Ohio - (Ceramic Supply Co.) CORB"IAX, Mitchell (S) Xe\\' Jersey Shale lIrick & Tile Corp. Box 249, Somen'ille, N. J. CORBMAX, Morriss (S) New Jersey Shale Brick & Tile Corp. Box 249, Somerville, N. J. CO R DES. John E. I ~II) 5333 Humboldt Ave., S. Minneapolis 19, Minn. (Lithium Corp. of America, Inc.) CORHART REFRACTORIES CO., INC. I Frederick S. Thom!""n) '140 Commonwealth RI,Ig-. Louisville 2, K). CORNING GLASS WORKS (Howard R. Lillie) Corning. ~. Y. CORXISH, Frank L. (G) Corning Glass \Vorks, Charleroi, Pa. CORNWELL, George L. (B) 171 Eiseman, Kenmore 17, X. Y. (Exolon Co.) CORRADA, Marco A. (G) Puerto Rico Glass Corp. Box 4272, San Juan, Puerto Rico CORSOX. Robert (GJ) 85 State St.. Seneca Falls. X. Y. (Syh'ania Electric Products, Inc.) CORWIN, Rudolph E. (B) Applied Physics Laboratory Uni"ersity of Washington 1013 E. 40th St., Seattle 5, Wash. COSTELLO, R. E. (W) Zeller Corp. Fort Wayne Rd., Defiance, Ohio COTTON, Nigel Elijah Cotton Ltd. Nelson Pottery, Hanley Stoke-on-Trent, Stafford, England COUCH, Albert H. (RFI) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Obio COVGHAKOUR, L. W. (B) 409~ Ben Lomond Dr., Palo Alto, Calif. (General Electric Microwave Lab.) COULTER, \\iilliam G. (M) ~82~ Meadowlane K. W., Canton, Obio (Pemco Corp.) COUNTS, William E. (B) 1422 W. Home Ave., Flint, Mich. (A C Spark Plug Div. General Motors Corp.) COURI, Richard A. (G) Box 109, South Woodstock. Conn. (American Optical Co.) COURT, G. Robert (E) 936 Hawthorne Ln., Kankakee, Ill. (A. O. Smith Corp.) COURTER, R. F. (M) Globar Div., Carborundum Co. Niagara Falls, N. Y. COURTNEY, Scott J. (M) B. F. Drakenfeld & Co. 45-47 Park PI., New York 7, N. Y. COUTANT, Edward R. (G) General Electric Co., 1285 Boston Ave. Bridgeport 2. Conn. COVAK, H. E. (M) R. R. 3, Box 10, Bryan, Texas (Orton Foundation) COWAN, J. G. "Roselands," Billington Haughton, Staff. England (Universal Grinding Wheel Co.) CO,,"AX, Robert E. (BJ) .'~06 Gold St., :\pt. 12 Los Alamos, X. 1\1. I Los Alamos Scientific Lab.) COWELL, J. Robert, Jr. (G) Woodville Lime Producl. Co. 2140 Jefferson Ave., Toledo 2, Ohio COWLES, Robert J. (W) Quality Components. Inc. St. Marys, Pa. CO\\"LES, Roderiel \\'al\\orth Co .. 1:<00 E. First :South Boston __ COWLING, Kennet: 79 Norwood k" Sheffield 5, Enr:. c (Thos. Marsha; . COX, John E. (E, ~I cHon In,titll: 4400 Fifth ..\ ". ;. Pa. COX. John J. 4515 21st A\l'. COX, Paul E. (SF 520 Canal St .. j;. (Louisiana r; ,'.. r .a. COX. Samuel F. I' Pittsburgh Pial Research Lab. COX. Shaun M. J. A. Jobling '- \\'ear Glass W,o, Sunderland, I le-'__ ' .---- COY. John Joel 'T 1689 Victoria Scarborough. (,. .' 410 (Frigidaire PC',';'-" --'-"': . Ltd.) COZ:\D, John O. ,.- Demuth Glas; '. -'-' Box 629, Parkr--=; CRAFT, R. S. (Rj Findlay Clay f'Tt.= ~ Washington, h. 'Ii.. CRAIG, Bruce G. ([ 4520 N. 148th. t.:.~ ':"c, (A. O. Smith Ce. CRAIG. David M... Pittsburgh Plat, ~ -=-One Gateway C..,.",... -=-='~h 22, Pa. -=-CRAIG. James W. ::: Canadian Refr.....= 540 Canada Cel"-"" := ~Iontreal 2, QnL . - . - CRAIG, John D .. j. 14 Emerald L,. - - ' (Vitro Mfll'. C. CRAIX, Haroh! f: 221 Skyport JI' .. -- :~~ Pa. (\\' e,tinghou" CR,UIER. AdolT,t ' Pellnsyh'at1i~ ;.; - --_. Chry,ler Bld~ Y. CRAMER, W. E Inrll1strial Ce~~" 965 W. Fifth ." '" CR:\:\D .... LL. Eu~" .?5~ Gulf 51.. :' I .... merican kt" ~c. il, Ohio Crucible CO ..' CR .... XDALL, Jam~ 4514 Chestnu~ : .. ~ ) Md. (National Bure::: :: :-='""'~') CR .... XDALL. Wi];", Box 707 ..... lfr"- (State Cnil c- Collel'(e of c.-- CRANDON. A. :: American ""ir. 20th Floor, F<.-~ c":', co!'!'. Pittsbnrgh 2: CRANE CO.. CH;.-='::':..,,')IV. (W, M. Ham::,~ 33rd and A!tOl Chattanooga '. CRANE-PACIFIC _. Peer) 330 \Y. Citru CRAVEN, HenT:- Davison Chem,,_ Div. of W. r. Lake Charles. ~ :"x 885 CRAWFORD, Ger-~ 221 Sumner ..... ~ .~ ....:c_ ~a. (Universal-R=, CRAWFORD, J. :. Johns-ManviJj~ ....~. -~ 22 E. 40th S~. ",,"'- Y. =.CRAWFORD, J. :.. 3854 Foothil: Santa Barba.~ --=. i: Ft,oI,.I i; CRESO!', Walter F. (R) Babcock & Wilcox Co. 1040 Xational City Bank Bldg. Clevelanu 14, Ohio lRESS. \\'illiam C. I RII Carolina Ceramics, Inc. R.R. J, Columbia, S. C. y, ~lorton (G) hart Manufacturing Co. J Homestead :he. Hartford 2, Conn. CRIDER, Paul ll. IE} 19i1 West 51st St.. Erie. Pa. (Erie Enameling Cn.) CRISPIXO, Joseph c. (R) Corning Glass \\'orks Corning, X. Y. S. A. CRISTALERIAS DEL URUGUAY (Francisco J. Gercar) Comercio 1491 Montevideo, Uruguay CROCKETT, William E. (X) 1215 K Arlington AH. Indianapolis, Ind. (Sales Engineer) CRONI!'GER, George J. (~I) A. J. Wahl, Inc., 8 Central :he. Brocton, K. Y. CROOK, Charles Edmund (\\.) Los Angeles Chemical Co. 4545 Ardine St.. South Gate, Calif. CROOKSTON, James A. (RI) 1224 E. Jackson St., Mexico, Mo, (A. P. Green Fire Brick Co.) CROOM, Henry C. (SJI) 1112 S. Tarboro St., Wilson, X. C. (U. S. Army) CROSBY, Donald P. (R I) Harbison-Walker Refractories Co. Fulton, Mo. CROSKEY, Carl D. (W) 208 Rollingdale Rd. Catonsville 28, Md. (Insulator Dept. General Electric Co.) ~LIX' John D. 1 X. Lamar, Austin, Texas . A. H. B. & J Dyson Ltd .. Griffs \\'orks Stannington. Xr. Sheffield. Englanel CROSSAN, W. A. (S) Metropolitan Brick, Inc. 1017 Renkert Bldg., Canton 2, Ohio CROSSLEY MACHINE CO. 301 Monmouth St.. Trenton 9, X . .L CROSSLEY, Robert H. (\\') St. Joseph Le3d Co. 250 Park ..he., Xe,~ York Ii, X. Y. CROUCH, Lester A. Georgia Institute of Technology Box 270, Atlanta, Ga. CROUCH, Richard L. (~I) - Funkhouser Co. Box 312, Blue Ridge Summit, I'a. CROWE, Samuel H., Jr. (G) 416 Mississippi Ave., Crystal City. Mo (Pittsburgh Plate Glass Co.) CROWLEY, Francis I. 01) Crowley-Thomps,;n Chemical Co. Ft. E. Xinth & Lakefront CleHland 14, Ohio CROWLEY, Henry L. (BI 365 Forest R,l., South Orange, X. J. (Cro\\ ley Div....\erovox Corp. I CROWLEY, Michael S. (I) Pennsylvania State University Dept. of Geophysics & Geochemistry 223 Mineral Sci. Bldg. University Park, Pa. CRnKSH.\XK. c. L. (X) Great Lakes Foundry Sand Co. 720 United Artists Bldg _ tTOit 26, Mich. ER, Vanghn E. I (~I rning r.la'S Works, Corning. X. Y. CULLEY. Paul P"le Bricl"e Rei .. (;elll',eo. X. Y. CeLVER. Richanl l.Box 1~'" .\!fred ..'\. Y. VOL. :W, X o. 10 ( 1~1.Y') CC~IMINGS, J. M. (~1) British Columbia Cement Co., Ltd. B. C. Cement Bldg. Victoria, B. c.. Canada Cl..'M!lfINS, Arthur B. (B) !llorning Glory Rd.,.Bouud Brook, ~. J. (Johns-Manville Corp.) Cl'~IMI!\'S, Rohert K. (G) General Electric Co., IIJ3 E. 15~\1(1 St. Cleveland 10, Ohio CCXLIFFE, J. A. (S) 266 Seventh St. Medicine Hat, A,lta., Canada (Medicine Hat Brick & Tile l'o, Ltd) IT.'\:\IX(~H.-\:\1. Eugene E '(;1 23 11 (;reenflcld .\\e .. ~e\\arl..:. (lhip ((h\cn:"o-Corning Fibergla ... CI1rp f lTX:\l:\(~fLUl, James .\. lSI .\dClnb Chl\" Pr(lduct.~ (0, B"x 34. :\[;rtiu-"ille, Ind. Cl..XXI:\"HA:\1. Rohert ,I. II,I Clark A,e., I<.R. 5, Xewark, Uhi" I Owens-Corning Fiberglas Corp. I CC PI DRO, Vincent' X. (\\') 2204 Kirchuff Rd. .\r1ington Heights, III. l Radio Materials Corp.) l-l'!{CIO, Anthon)' L. (\\'1) 21 Church St., Bound Brook. X. J. (,\,h'anced Vacuum Products. Inc.) CURRAN. EDWARD ENGINEERING. LTD. (Terence P. Xealon), Cardiff, \\'ales CURRAN, Martin T. Box 562, Alfred. N. Y. CURRAN, Robert (R[) 75-08 35th Ave. Jackson Heights 72, N. Y. I Plibrico Co.) Cl..RRIE, Thoma" E. IR) Box 3.1. Ben, yn. Pa. IFoote ~Iineral Co.) CURRY, William ,I.. Jr. (R) Hiram Swank's Sons, 13,,, (,.10 Johnstown, Pa. lTRTIS. Carl E. IRFI) R. R. 3, Kingston, Tenn . I Union Carbide Xuclear Corp.) CLIRTIS. Miles E. (E) 301 Brunswick Rd., Louisville i, Ky. (Ferro Corp.) CU!{T1S, \\'illiam H., Jr. (En :\l aj(nolia Trailer Ct. 2hO') Deans Brid"c R,l.. .\ugusta. (;a. (U. S. Army) (t'RTS, R. M. (G) :\merican Potash & Chemical Corp. 99 Park Ave., New York. X. Y. CLISICK, Charles S. (G) Pittsbur/o!h Plate Glass Co. Wks. 4, Ford City, Pa. <-TTHILL. John R. (E) Enameled Metals Section Xational Bureau of Standanls \\'ashington 25, D. C. CUTLER, Ivan B. (B) 220 Mines Bid!:.. University of nah Salt Lake City 12, Utah CZ:\RXECKI, Kamil B. 29, Whitehall London S. W. 1, England (A/o!lite. Ltd.) CZECHOSLOVAK SCIENTIFICTECHNICAL SOCIETY FOR THE SILICATE INDUSTRY I R. Barta) Prik"I'" 29 Prague 1. Czecho~'IO\'akia o D'ADRIAN, Vincent L. D. (G) Mississippi Valley Research Lah .. Inc 901 S. 18th St., St. Louis 3, Mo. DAGER, Probert W, (MFI) 5628 Greenbush, Van Nuys, Calif. (H. C. Spinks Clay Co.) D.\ H LSTRO:\l, Roy IX) :\ational Lead C". 111 !lroa,l",,,. :\e\\ York I;. '\. Y. DALEY, Frank E. (M) Godfrey L. Cabot, Inc. 46 Bayard St., I\ ew Brunswick, N. J. DALTON, Robert H. (G) 234 Delevan Ave., Corning, N. Y. (Corning Glass Works) DA~lEROX, Joseph J. (S) Coates Co., Box 935, Austin. Texas DAXIELSOX, R. R. (EFI) 120 Richmond Terrace, Rahway, X. J. Oletal & Thcrmit Corp.) DANKS, William H. (G) 216 !I{ississippi Ave., Crystal City, Mo. (Pittsburgh Plate Glass Co.) DARBY, George ~l. (M) 61 \Vashington AYe., Westport, Conn. l Dorr-Oliver, Inc,) DAR)\;ELL, Harmon C. (S) ~Iurray Tile Co., Inc., Cloverport, Ky . D.\RR.\H, W ..\. tE) 901 N. Oak Park BIId., Oak Park, Ill. (Continental Industrial Engineers, Inc.) D.\S Gl'PT.\, A. K. (\\') Allen-Bradley Co. 136 W. Greenfield :he. :\Iil\\'aukee 4, \\'isc. DAUMKE, Arthur H. (W) 17 W. 170 Hillside Ln., Hinsdale, Ill. (Harshaw Chemical Co.) DAUWALTER, A. C. (5) W. S. Dickey Clay Mfg. Co. 607 Commerce Trust Bldg. Kansas City 6, Mo. DAVENPORT, Warren H. (R) 53 Paine St., Worcester 5, Mass. (Norton Co.) DAVEY, Earl R. (W) Canadian Ohio Brass Co., Ltd. Niagara Falls, Ont.. Canada DAVEY & MOORE LTD. (K. A. Murdoch) Lockfield ..he. Brimsdown. Enfield :\Iiddlesex, England D.\\'IDSOX. E. O. I~I) Trinit)' Ceramic Supply, Inc. 100 Howell St., Dallas, Texas DAVIDSON. Robert W. (R) !'orth American Refractories Co. Curwensdlle, Pa. DAViES, Chester A. (WI) Park Lake Ave., Titusville, N. J. (American Radiator & Standard Sanitary Corp.) DAVIES, Edward G. (G) Dominion Glass Co., Ltd. \Vallacebnrg, Ont., Canada D.\\-IES, Louis F. ~~I) Carborundum Co., Globar Dil'. 2h26 !lla!t Ave., Los Angeles 22. Calii. D.-\\'IES, Ray, Jr. IR) (;eneral Refractories Co. 61\1 ~Iarket St. San Francisco 5, Calif. DAVIES, Thomas H. (Gl Mellon Institute, 4400 Fifth A"e Pittsburgh 13, Pa. DAVILA, A. E. Fernandez Londres 1122 !.ongchamp,-F:\ GR. .\rgenlina ~ Ferro namel S..\.) DAVIS, Earl K. (G) Bausch & LomL Optical Co Rochester, N. Y. DAVIS FIRE BRICK CO. Oak Hill, Ohio DAVIS, Harry E. (WFI) Universal Potteries, 1m'. Cambridge, Ohio DAVIS, H. M. (E) Pennsylvania State University Mineral Industries Bldg. University Park, Pa. DAVIS, James K. (G) 144 High Rd., Corning, X. Y. (Corning Glass Works) \) \ VIS, James T. Bux 5].L? (~(,o1"gia Tech Sta. \tlanta. (;a -J{(ISTEI< ._).J DAVIS, John A., Sr. (W) Sentry Sanitary Corp. Box 427. :llannington, \Y. Va. DAVIS. ~1. Paul. Jr. 300 Chamherlain St.. Raleigh. X C. DAVIS. X. B. (:Ill Ii :II etcalfe St.. Rm. 805 Otta\\a 4. Ont., Canada onsllilill g Engineer) . Richard P. 118 Eighth .\ \ e...-\Itoona. I'a. DAVIS. Sam II., Jr. (W) Kohler Co'-. Spartanhurg. S. C. DAVIS. \Yaltt'r :II. (R) Aluminllm Co. of .\merica 1515 Ficlt:lity Philadelphia Tn.,t Bldg Philadt:lphia fl, I'a. DAY, Arthur L. (Honorary, G) 9113 Old Georgetown Rd. Bethesda 14, Md. DAY, Britton T. (R) American Fire Cla\' Ii Pr"duct- C". Box 157, Cantield,' Ohio DAY. Charles M. (R) Valley Dolomite Corp. Room 902, 915 Olive St. St. Louis I, Mo. DAY, Delbert E. 502 W. Tenth St .. Rolla. :110. DAY, Frank, Jr. DI) Corning Glass Works, Corning, !'\. Y. DAY, Jack F. (WI) 2002 Woodland Ave., N. W. Canton, Ohio (United States Ceramic Tile Co.) DAY, Ralph K. (GFI) . Libbey-Owens-Ford Glass' Co. 1701 E. Broadway, Toledo 5, Ohio DAY, Robert B. (51) 18 Lynnwood Dr.. R. R. 3. :I[orris, III. (Tuthill Building Materials Co.) DEADERICK, James W. (B) 1011 Norvell Dr. ." Signal Mountain, Tenn. (American Lava Corp.) DWYLER, Earnest W. (RI) _ 99 Glenmawr Ave. lumbus 2. Ohio nited States Army) DEAN, Estus R. (BJ) Box 41. Ossining. X. Y. (International Busines, :lfachines Corp.) DEAN, Robert (G) Sinclair Gla" Co.. Ceredo. W. Va. DEAR. Paul S. (BFI) Virginia Polytechnic Institute Box 205, Blacksburg, Va. DEARBORN GLASS 'CO. (Joseph Falls). 6600 S. Harlem Bedford Park, P. O. Argo. Ill. DE BECK, Hubert O. (M) 1700 Sunset Blvd., Apt. 22 Houston 5, Texas (Baroid Div., National Lead Co.) DEBENHAM. w. S. (RFI) United States Steel Corp. 525 William Penn PI. Pittsburgh 30, Pa. DECKER. Alfred R. (W) Champion Spark Plug Co Cambridge, Ohio DECKER, Edgar :\. (W) G. S. Robins & Co. 126 Chouteau, St. Louis 2. ~Io DECKER, Edward L. (W) Summer St., Williamsto\1l1. ~I ass. (Sprague Electric Corp.) DE COURSEY. Donald T. (E) Redfield Village, Apt. 19.-\-3 Metuchen, N. J. (E. I. du Pont de Xemours & C... I DEETH, H. R. (M) merican l"epheline Ltd. King St. W., Rm. 2530 oronto, Ont., Canada DEIGNAN, Charles J. (SI) 305 Burkey Ave., Reynoldsburg. Ohio (Claycraft Co.) VOL. 36, No. 10 (10.')/) DE LA ROY, Hans (W) Delco Radio Div. General Motors Corp. Kokomo, Ind. DELAWARE CLAY CO. I Homer \\'. \\'ibon I Bnx 352 Delaware. Ohio de LEEL"W, Peter Eisenberg & Co., Inc. Central Post Office Box 323 Tokyo, Japan DE LEOX. Aaron (R) Cia. Indu_triaI de Zacatecas, S..\. Apartado 9. Gt,adalupe, Zac., :I[exi"" DELGADO, Cyril B. (G) The Glass Industry 55 \Y. 42nd St., New York 36, X. Y DeLO:\G, Hermon W., III (G) 67 ~[ajn St., Dansville, X. Y. (Department of PuLlic \Yorks) DD[AISO;\" R. J. (oR) Quiglt:y ell .. Inl'.. 41.; :I[adisun .-\\e- New York 17, X. Y. Dc:lL-\R1:\, \'incent C. (G) Sylvania Electric Products, Inc Box 6, Bayside, X. Y. DEMUTH GLASS WORKS, INC. (George F, Young) Box 629 Parkersburg, W. Va. DENISON ENGINEERING DIV. AMERICAN BRAKE SHOE CO. (\\'. C. Denison), 1160 Dublin Rd. Columbus 16, Ohio DENISON, George W. (SF) Ohio Clay Co.. Box 1776 Cleveland 5, Ohio DENISO;\'. John c., Jr. (G) John C. Denison & Son Co., Box 63 Rochester, Pa. DENISON, Norman E. (S) Ohio Clay Co., Box 1776 Cleveland 5, Ohio DEXISOl", W. C. (:II) Denison Engineerin.g Di\. :\merican Brake Shoe Co. 1160 Dublin Rd., Columbus 16, Ohio DENMAN, Cedric E. (S) Great Bend Brick & Tile Co., Inc. Box 53, Great Bend, Kans. OE:-.'NIS, John S. 28 ~[ichael Dr., Trenton 9. X. J. de P.'\BLO, Liberto Ohio State Uni\'ersitv 140 Lord Hall, Colu;;bus 10, Ohio DE PIOLENC. Gerard (X) Saint Gobain, Inc. 500 Fifth A,e., !'\ew York 36, ;\'. Y. dePROSSE, Victor A. (EI) 2164 Arthur Ave., Lakewood 7, Ohio (Ferro Corp.) DeREMER, John W. (RI) 501 Arizona Dr., New Kensington, Pa. (American Window Glass Co.) DERGE. Gerhard (X) Carnegie Institute of Technology Pittsburgh 13, Pa. DERINGER, W. A. (EFI) A. O. Smith Corp. 3533 N. 27th St., Milwaukee I, Wise. deROUX, Juan Ramon (1) Box 1486, Panama, Rep. of Panama (Pauama Clay Product, Co., Inc) DERR, Robert H. (W) Certain-Teed Products Corp. 204 Park PI., Pittsburgh 9, Pa. DESAIX. Herbert A. (SI) 122 Jefferson Park Dr. Huntington, W. Va. (Barboursville Clay Mfg. Co.) DESENl"E, Claude M. (S) 505 Cote de I'Eglise Boischatel Co. Montmorency, Que., Canada (Citadel Brick Ltd.) DETAMORE, Walter A. (5) Barium Reduction Corp. South Charleston 3, W. Va. DEL"RYORST. F. B. :II. Het Zonnehuis, PaasbergJaan " Terborg. Holland (Koninklijke Fabrieken Dicl'enbrock & Reigel'S X. V.) DEUTSCHE GLASTECHNISCHE GESELLSCHAFT B"ckenheimer Land,trasse 12/, Frankfurt (:llain 'I. Germany DEUTSCHE KERAMISCHE GESELLSCHAFT Reuterstra"e 2J5 Bonn/Rhein, Germany DEL:TSCHER. Jer"me:; I Sl I R. R. I, Box ~)J~ 4J"" Tt:mescal .\\t' .. Xnrc" Calif. I H:ll1Cnck Brick CIl.) DeVILBISS CO. IE F. Frt:~ I Phillips & Detr"il .\\e. Tolt:d" 1. Ohi" de \ILI.E. 2 Lt. 1<:.I1'h \Y. III Hq \ir :llatt'ritI ("I11111and. li", 124.: \\'ri~ht,l'atter"," \ FR. Ohi" DE\1.1X. James F. 11'11 4224 Brenal1 \\ c...\pt. 2 Dayton n, Uhi,) (Pemco Corp.) DeVOE, Charle, F. (R) 38 \Y. Fourth St.. Corning, X. Y. (Corning Gla'S Works) De\RIES. Rohert C. t B) General Electric Co .. Research Lab. The Knolls, Schenectady 3. X. Y. DE\\', Robert ]., Jr. (B) . Ceram-Chem, Research Lab. University of Tampa, Tampa. Fla. DEWEY, B. F. (W) 42 Summit St., LeRoy. N. Y. (Lapp Insulator Co.) DEWEY, John L. (R) Re)'nolds Metals Co. Box 191, Sheffield, Ala. de \YYS. E. Christiaan (B) 85 ~[aple Dr.. Che,terland. Ohio (Ferro Corp.) DEXHEIMER, E. C. (E) 917 Country Club Drive St. Louis 21, Mo. DEYO. R. Daniel (R) 104 Dogwood, Park Forest, III. (United States Steel Corp.) DI \. lanuar;" D. pioneer Porcelain 11Hlustry. Inc. 1(122,[) IIl\'erne __ St., Sta. \na :lJanila. Philippine, DIAMOND ALKALI CO. (L. T. Welshans) CementCoke Div. 300 Union Commerce Bldg. Cleveland 14, Ohio DIAMOND, Grant S. (RFIl Electro Refractories & Abrasives Corp. 344 Delaware Ave., Buffalo 2, N. Y. DIAMOND, Jacob J. (B) National Bureau of Standards Conn. Ave. & Van Ness St., N. \V. Washington 25, D. C. DIAZ, Jose J. (I) Fabrica Nacional de Loza de Penco S. A. Box 13. Penco, Chile di BEXEDETTO, Bernard Box 847, Alfred. ~. Y. DICK, Clarence H. (G) 1013 Gordon St., l"atrona Heights, Pa. (Pittsburgh Plate Glass Co.) DfCK. William 0 .. Jr. (G', 37 )1eado\\' Brook Apts. Corning. ~. Y. (Corning GIaS' \Yorks) DICKAS, Charles H. (E) 1524 Sunset Rd., Chattanooga, Tenn_ (Samuel Stamping & Enameling Co.) DICKENS, H. A. Nilsen Porcelains (Aust.) Pty. Ltd. 221 Separation St. Northcote, Victoria, Australia DICKEY, Herbert R. (S) 26 Regent St. St. Thomas, Ont., Canada (Canada Vitrified Products, Ltd.) RUSTER ~7 J ~KEY. John M., Jr. (51) Hanle,' Co., Summerville. Pa. 'I-:l:\~():\. S. J. (R) ,\merican Smelting &. Refining Cll. ~"tltb Plainfield. :\. I. ,'I-:SO:\. Terry E. . '21 \ Itlcent St .. Hornell, :\. Y. Co: 'arl \Y. (RI \'ilmore j,I.. SyraCtbe ~. :\, Y. ( r<J Refractories & ,\hra,i,., Corp. I t:TERT. Harry \\'. IRI Harry W. Dietert Co. 1214 \'irginia Dr., Kerrville, Texas ETRICH, \\'aldemar F. (B) 1209 Potomac St.. N. W. Washington i, D. C. (Cmted States Bureau of Mines) ETTERLE, Edwin W. (WI) 3834 ~Ionteith Dr. Los Angeles 43, Calif. (Ferro Corp.) ETZ, Earl D. ~hr, lie" Rd.. C"ltulll"" 10. Ohi" ETZEL, Adolf Max-Planck-Institut fur 5ilikatforschung, Wurzburg, Germany Neunerplatz 2 LAZZARO, John F. 4015 34th 5., Seattle 8, Wash. :LLARD, William F., Jr. (5) 2125 E. Side Court, Augusta, Ga. (Merry Bros. Brick & Tile Co.) ILLENDER, Richard D., Jr. (W) 8 Sunnybrook Trail Signal Mountain, Tenn. (Attterican Lava Corp.) ILLIARD, Paul D. (GI) 1313 E. Wheeling St., Lancaster, Ohio (Anchor Hocking Glass Corp.) ILLINGHA.M, Robert P. (W) 2207 Cheyenne 5t., Golden, Colo. (Coors Porcelain Co.) ILLOX. C. L. (G) Latchford Glass Co .. Box 71707 .. ngeles I, Calif. I , Zale (W) iverlawn Dr. Fair Haven, N. J. (Atlantic Tile MIg. Co.) lXGLEDIXE. H. F. (5) Xational Sewer Pipe Ltd. .1.10 Wentworth St .. X. Hamilton. Ont., Canada INGLER, Edward L., Jr. (R) Carborundum Co. Refractories Div. Kiagara Falls, N. Y. 'INGWALL, Andrew (G) 588 Grove St., Upper. Montclair, N. J. (Consulting Scientist) 'IPPELL, L. V. (R) 1407 Cherry Lawn Ave. R. R. 3, Owosso. Mich. (Mid-West Abrasive Co.) 'IRKSEN, A. J. (G) American Potash & Chemical Corp. 99 Park Ave., New York 16, N. Y. ilRLA~I, Arthur C. (G) 208 X. Talley Ave., Muncie, Ind. (Ball Bros. Co., Inc.) llSTILLATOR, Philip R. (W) Jackson Vitrified China Co. 2 West St., Pelham Manor 65. :'II. Y. IITHRIDGE. Edward H. (E) Richmond Plumhin~ Fixtures Di\. Rheem Manulacturing Co. Ii 20 Pennsyh'ania Ave . Monaca, l'a. )I~ON, Anna Lane (D) 815 N. Fourth St., Burlington, Iowa lIXOX. C. E. (B) 62iO Lubao Ave. Woodland Hills, Calif. (Atomics International) )IXON, Gene (R) nite Mining Corp. Cullen, Va. ) , JOSEPH, CRUCIBLE CO. . R. Wyckoff) 167 Wayne St. Jersey City 3. N. J. )LUGOZIMA. W. R. (W1) Patterson Fot11ldr\' & !\lachine Co. Ceramics Di\' .. E~st Li\erpool. Ohi" l OL. 3li. !'lO. 10 (l!l."-') DODD. Charles M. (SFI) Dept. of Ceramic Engineering Iowa State College, Ames, Iowa DU DG.E ..\\fred \\'. (G) Continental Can Co., Inc. Hazel-:\tla, Glass Dil'. 126 ~Iarket St.. ZaneS\"!lIe. Ohio DOERSELK, Kenneth P. (M) Silk City Tool & Machine Works 221 Se\'enth Ave., Hawthorne. ~. J. DOLL, Charles E. (W) Mount Clemens Pottery Co, Mount Clemens, Mich, DOMINION MINERALS DIV, RIVERTON LIME & STONE CO. I R"hert C. Bnntll. Pinel' Ri\ er. \a. DOl\AHEY. John W. (GI)' Box 191, Paoli, Pa. (Foote Mineral Co.) DONEl'I, I. Consolidated Glass Works Ltd. Box 562, Germiston . Transvaal, South Africa IlO:\EY. Louis ~l. (B) ~lackin Lane, R. R. 20 Kno:wille, Tenn. (Oak Ridge Xational Lab.) DOXLEY. John C. (1) Pemco Corp.. 5601 Eastern ,\\ e Baltimore 24. :\1<1 DOXLOX, Rohert L. (GJ) Corning Glass Works Harrodsburg, Ky. DONNENWIRTH, A. L. (RI) Carborundum Co., Falconer, N. Y. DOORXWAARD, John 36 Third St.. K. W. Sioux Center, Iowa D() R :\. Joseph c. (E) 1\17 Oak St. Danville. Ill. 10rdnance Ammunition Comma,,,!) DORAN, Robert F. (GI) Sylvania Electric Products, Inc. Cottage PI., Mineola, N. Y. DORF, Arthur L. 17'11 E. 14th St.. Brooklyn 29. X. Y. D()R~ll'TH, Lawrence C. (B) Pennsalt Chemicals Corp. Box 431\8, Chestnut Hill P. O. Philadelphia 18, Pa. DORN, Alvah J. (G) 4 Oakwood Dr., Box 152 Corning. N. Y. (Corning Glass Works) DORN, G. Neal (51) 1015 Kemp Ave., Ironton, Ohio (Carlyle Tile Co.) DORSETT, O. A. (W) Knox Porcelain Corp., Knoxville. Tenn DORSEY, Baird L. (R) 300 Walnut Rd., Pittshurgh 2. Pa. (Jones & Laughlin Steel Corp.) DORSEY, John J. (WI) P. R. Mallory & Co., Inc. 3029 E. Washington St. Indianapolis 6. Ind. IH)TY. Henr\' S. (R) C()mmer~ialores, Inc. 30 Church St.. ::\ew York 7. :\. Y. DOUGHERTY, Leon A. (W) 370 North St., Sun Prairie, Wise. (Wisconsin Porcelain Co.) DOFGHERTY, W. E. (MF) 1625 Barr Ave., Pittshurgh 5, Pa. (0. Hommel Co.) IH llCL:\S. Edward :\. (R) f>21 S. Freedom Ave .. Alliance. Ohio I Bahcock & Wilcox Co.) DOUGLAS, Richmond Douglas Firebrick Co., Ltd. Dairy, Ayrshire, Scotland DOUGLAS, R. W. Society of Glass TechnololrY "Thornton," Hallam Gate Rd Sheffield 10. England DOWDLE, Hugh J .. Jr. Box 2905. Clem,on College Sta. Clemson. :". C. DOWLING, Robert F. (G) American Optical Co. Southbridge, Mass. DO\\'X5, Charles D. I. W) Columbian Carbon Co. :\Iapico Color Cnit 601 Cass St., Trent"n 10..\. J. DR.\KE. Arthur D. IS) R. R., Blackli~k, Ohio (Claycraft Co.) DRAKE, M. Ellis (D) Alfred University. Alfred, N. Y, DRAKENFELD, B. F, & CO. (Scott J. Counney) 45-47 Park PI. New York 7, X. Y. DRAKER, Harry C. 1M) 38600 Courtland Dr., Willoughby. Ohio (Harshaw Chemical Co.) DRAMMENS GLASSVERK (Ragnar Tanberg) Drammen. Norway DR:\!'ER. Perry E. ,\\', ~Iansfield Sanitary. InC'. l'errys\ille. Ohio DRECHSEL. Helmm E. IG) Smith Kline & French Labs. 1530 Spring Ca rden St. Philadelphia I. Pa. DRESSLER, Philip (MF!) Swindell-Dressler Corp., Box 1888 Pittsburgh 30, Pa. DREYER. Donald H. (G) T. C. Wheaton Glass Co. ~fill\'ilIe, K. J. DREYLING, Lewis J. (R) 229 Milltown Rd., Milltown, N. J. (Quigley Co., Inc.) DROl'HARD, W. J. (\\,1) Mansfield Sanitary. Inc. Perr)'sviIle, Ohio DRUCKER, Julius Farbenlabriken Bayer Aktiengesellschaft, 7-9, Rheinuferstr. Krefeld-Uerdingen. Germany DRUMMOND, Charles H. (G) 1639 Cass Rd., Maumee, Ohio (Owens-Illinois) Dl:BE, Alfred (D) 425 11th St.. Lincoln, 111. (Stetson China Co.) Dl'BER. William 1143 ~Iarseille Dr. :\fiami Beach 41, Fla. DL:BLER. Robert H. (W) Crane-Pacific Co. 330 W. Citrus St .. Colton, Calif. DuBOIS. H. B. OIFIl Golding-Keene Co. Box 456, Keene. :\. H. DUCKWORTH, Winston (BFI) Battelle Memorial Institute 50S King Ave., Columbus I, Ohio DUDDING, B. P. International Commission on Glass Research Laboratories General Electric Co., Ltd. Wembley, Middlesex. England DUE, Herbert J. (W) 11 Scoles Ave., Clifton. N. J. (St. Joseph Lead Co.) Dl'ECKER. He\'man C. (G) 28927 Emer~on Way, Inkster, Mich. (Ford Motor Co.) DVEVEL, Charles 0., Jr. (G) American Thermos Products Co. Thermos A\'e., Norwich, Conn. Dl'EY. Rohert K. (5) 4217 Brook Rd .. Richmond 2i. Va. I Southern Lightweight Aggregate Corp.) DUFF, R. D. (G) Owens-Illinois Box 1035. Toledo 1, Ohio DUFFY, J. P. (5) Stillwater Clay Products Co. Lock Drawer 32. Uhrichsville, Ohio DC FRES1\ E. Rohert S. l W) 3125 Fairmount, La Crescenta, Calif. (Gladding. ~lcBean & Co.) ROSTER :.?!) ~'GGA:-;, J. J. (G) Walsh Refractories Corp. 101 Ferry St., St. Louis 7, Mo. ,'H;\", Elmer C. (\\") Franklin Chemical Co. 119 \\'. Chestll ut St. Columbus 15, Ohio ].~e'rcialAlDfreecdal,(0In)c. 759. East Liverpool, Ohio' JKE, John J. (W) Box 33, Saxonburg, Pa. (Du-Co Ceramics Co.) :;LBERG, Irving (R! I 254 1\. Allegheny St., Bellefonte, Pa. (J. H. France Refractories Co.) LJLIK, F. H. (BJ) Champion Spark Plug Co. Ceramic Div. 8525 Butler A,c .. !ktroit 11. ~[ich. UN BECK. Korman J. (R) International Minerals & Chemical Corp. 20 N. Wacker Dr., Chicago 6. Ill. C:-;CA~. .1. Earle IGF) Pittsburgh Plate Glass Co. Research- Lab.. Creighton, Pa. 'UNCA~. Russell F. (B) 209 Franklin Dr., Berea, Ohio (Ferro Corp.) 'UNCOMBE, George H., Jr. (SF) 150 E. Frambes Ave., Columbus I, Ohio (Evans Brick Co.) IUNEGAX, Harry C. (B) 433 Glenhill Dr. Chattanooga 5, Tenn. (American Lava Corp.) )UNGAI\, Robert H. (BI) 6850 ~[eadowbrook Manor St. Louis Park. Minn. (Minneapolis-Honeywell Reg. Co.) )uNN, H. E: (R) Suite 206. 300 Mt. Lebanon Blvd. Pittsburgh 34. Pa. ~nadium Corp. of America) ) lohn P. (\\' 1 ing)Glass Works. Corning, N. Y. D , Peter E. (G) Rauland Corp., 4245 N. Knox Ave. Chicago 41. Ill. :)UPLI~. V. J., Jr. (BFI) Box 785, Lynchburg. \'a. (Babcock & Wilcox Co.) du PONT, E. 1.. de NEMOURS & CO., INC. (John M. Olsen) Electrochemicals Dept. Wilmington 98, Del.. DURFEE, George L. I B) Wyman-Gordon Co. 105 Madison St., Worcester, Mass. DURH....M. Carl T. (E) 742 Windsor Ave., S. W. Roanoke, Va. (General Electric Co.) DURI\\\'IRTH, Roy K. Box 273, Alfred, X. Y. DURST, \VilIiam A. (B) Lynch Rd., St. ~larys, Pa. (Stackpole Carbou Co.) DUWEZ, Pol (B) California Inst. of Technology Pasadena. Calif. DyCK, \\'alter E. [G I Pittsburgh Plate Glass Co. Works #4, Ford City, Pa. DYER, Kenneth A. (S) 4701 Finley Dr., Austin, Texas DYNES, Marvin W. (G) Van Dyne Quartz Works Box 148, St. Charles, Ill. I E, Warren T. (E) 7 Estaugh Ave., Haddonfield, N. J. niversal-Rundle Corp.) D RA. Edward J. (B) American Optical Co. Research Center Southbridge, Mass. VOL. 36, ~u. 10 (l!l,i7) E EAGLE. J. Eugene (MFI) 3202 McShane \Vay, Baltimore 22, Md. (Pemco Corp.) EAGLE-PICHER CO. (D. R. Carter) American Bldg., Cincinnati 1, Ohio E.\RH.\ RT. \\"illiam H. (C) RC.\ \icwr. Gla", Lab. S..\dam, St.. ~[arion, In,l. E.\RL. J ..\!fred (B) 1621 S. El ~lo1ino St. Alhambra. Calif. I Consolidated Electrodynamics Corp.) EASTER, George J. (RFI) Electro Refractories & Abrasives Corp. Willett Rd., Buffalo 19, X. Y. E.\STLY. ~[ichal R. 3".17 ..\,h\\'orth. Seattle 3. \\"ash. EBERSOLE, Robert A. (R) Chisholm. Boyd & White Co. 610 W. 57th St., Chic.ago ':1, Ill. ECK.\RllT. R,mal,! B. 72" E. S~conJ S.. Salt Lake City. L'tah E\..-KEL. .\Illert R. [\\'j CommerciaJores, Inc., Clover, S. C. ECKEL, Harold A. Trinidad Clay Products, Ltd. 44, South Quay, Port of Spain Trinidad, B. W. 1. ECKLEY, J, R. (R) Aluminum Co. of America 1501 Alcoa Bldg., Pittsburgh 19. Pa. ECOXO~lOS. George (W) 36 White .'\Ye. Xewton Centre 59, ~[ass. (Massachusetts In,titute of Technology) EDGAR, Albert C. (W) Edgar Plastic Kaolin Co., Edgar, Fla. EDGAR, Clement B. (R) M. H. Detrick Co. 1620 Oliver Bldg. Pittsburgh 22, Pa. EDGAR PLASTIC KAOLIN CO. (Albert C. Edgar) Edgar. Fla. EDLIX. \"ernon (B) 5R60 ~. Kenmore AYe. ChicaRo 40, Ill. (.\rmour Research Foundation) EDSTR.\~D. Elmer W. (~[) 55H Bohlander Ave.. Berkeley I. 111. I LitHlllerl( Engineering Co. \ ED\\'.\RDS. F. ~1. (\\') 4605 Croshy Rd., Knoxyille 10. Tenn. I Knox Po;celain Corp.) EDWARDS, J. B. (S) Reliance Clay Products, Box 13226 Dalla, 20, Texas ED\\'.\RDS. William R. (W) 424 Balsam Dr., Davison, Mich. 1.\ C Spark Plug Div., General ~[otors Corp.) EGERTOX, Lawson (B) Bell Telephone Labs., Inc. 1Iurray Hill, N. J. EHLERS. Ernest G. (B) Ohio State University Dept. of Mineralogy, Columbus, Ohio EHLERS. G. :\lilton (W) 4764 X. Oakland .\ ve. ~[il\\'aukee. \\'isc. EH~l\X. Roy G. (GFl) 323 E. Hamilton Ave. State College. Pa. (Penmyh'ania State University) EHRLICH. Josef (W) 21<) 23rd, Santa ~[onica, Calif. f .\ll1erican Ceramic Products. Inc.) EICHB.\L'11. Barlane R. (W) E. Bend Park, S May Ct. Red Oaks Mill, Poughkeepsie, ~. Y. (1 nternational Business Machine,) EIDE. Alwin C. (E) American Zinc Sales Co., Box 327 Columbus 16, Ohio EISE~BERG, Man'in (R) 5425 S. Dorchester AYe. Chicago IS. III. EISS. Roger L. Box 827. Alfred. K. Y. EITEL. \\'ilhelm I BII Dir. of Inst. of Silicate Research Unh-ersity of Toledo. Toledo 6, Ohio EKDAHL, W. Graydon (G) Johns-Manville Research Center Manville, K. J. EKEDAHL. J. Charle, (Ri 1006 Ga;,lner ..he .. Juliet. 11J. (Illinois Clay Products Co.) EKELl'~D, Bror S. I B) Trionics Corp. Box 5-1~. ~[a,lison 1, Wise. ELBL. \\'illiam ~l. I G,I Pittsburgh Phte Glass Co. Works =10. Henryetta. Okla. ELDER. J. C. (WI \ Robertson ~[ig. Co., Box 848 Trenton 5. X. J. ELECTRIC AUTO-LITE CO., SPARK PLUG DIV. (Robert Twells) Box 231, Fostoria. Ohio ELECTRO REFRACTORIES & ABRASIVES CORP. (Grant S. Diamond) 3H Delaware Ave.. Buffalo 2. :-;. Y. ELJER CO., Enamel-Ware Div. (L. A. Bateman) Salem, Ohio ELLARD. Earle R. (RI) 344 Clinton Ave . Tiffin, Ohio I Basic, Inc.) ELLEFSO!\. B. S. (G) SvJyania Electric Prouucts, Inc. 1740 Broadway. New York 19. N. Y. ELLIOTT, Amos W. (B) Covered Wagon Ranch Cloverdale. Calif. ELLIOTT, C. Franklin (Wn 3301 Pinewood Ave..."pt. -II Chattanooga, Tenn. (American La"a Corp. \ ELLIS. Donald G. (;\1) West End Chemical Co. Di,. Stauffer Chemical Co. 1956 Webster St., Oakland 12. Calif. ELLIS, James S. Massachusetts Institute of Technology Rm. 4-051. Cambridge. Mass. ELLIS. J. Leslie IS) Box 47. Summitville. Ohio (Summitville Tiles. Inc.1 ELLISO!\. Henry W. (G) 169 E. Third St., Corning, !\. Y. (Corning Glass \Vorks) ELLISON, R. W. (R) ISS 1 E. Lorna Alta Dr. Altadena, Calif. ELMER, Thomas H. (B) 219 E. High St., Painted Post, N. Y. (Cornin~ Glas> Works) ELOSL'A, Bernardo (DF) Ladrillera Monterrey, S. A. Box 360, Monterrey, N. L., Mexico ELSTON, Keith (WI) 117 Somerset Ave., Pittsfield. Mass. (General Electric Co.) ELY, William G. (G) Pittsburgh Plate Glass Co. 1 Gateway Center, Pittsburgh 22, Pa. EMANUEL. E. C. (G) Armstrong Cork Co. Research & Development Center Lancaster, Pa. EMHART MANUFACTURING CO. (W. H. Shorter) 333 Homestead Ave. Hartford 2, Conn. EMHISER. Donald (R) 1105 Eighth AYe., Brackenridge, Pa. (Pittsburgh Plate Glass Co.) E~lIS0~. ~1. Hershel (G) Corning Glass Works. Corning. 1\. Y. EMLEY, William S. (W) W. Maitland Lane, R. R. 3 New Castle, Pa. (Shenango China. Inc.) E~DIERICH. Charles W. Box 246. Alfred, !\. Y. EMMERICH, Liberata (G) Pennsvlvania State University Miner~l Industries Library L'niversity Park, Pa. ------ ROSTER :ll .-*a......_ _ RICH, ..\Hen H. 750 Brookside Dr., C(.I:l~jnhl1:-- ~;. Ohiu RICH, Barry R. lG]I) .l~.?5 .-\nuerson, S. E...\1'1. B .-\lbu'luerqu<,. ~. ~1. (_-\nchoT Hocking t11i1.:--~ Curp.) RICH, Emerson W. \ ~ll) vanderbilt Laboratories 'orwalk, Conn. Harold \Y. (SI) 15 . Krameria, Dem'er, Colo. I Denver Brick & Pipe Co.) BERG, Christer Tegellaboratoriet (Brick Laboratory) Drottning Kristinas vag 45 Stockholm 0, Sweden 'GLE, Glen B. I B) Battelle ~Iemorial Im!itute 505 King .-\ve., Columbus 1, Ohio 'GLERT, William J. (G) 30~ \'ernon St., 1I:e" Kensington, Pa. (Pittsburgh Plate Glass Co.) IGLISH CHINA CLAYS SALES CORP. 551 Fifth Ave., !l:ew York 17, N. Y. :Hl'S, Han' Gosta .-\B Malardalens Tegelbruk Stockholm 3, Sweden ~LOE, Scroop W. (M) Dillsboro, N. C. (Harris Oay Co.) ~LOE, Scroop W., Jr. (M) Harris Clay Co., Spruce Pine, N. C. ~OCH, Charles R. (R) 320 Spring Ln., Bridgeport, Pa. (Refractory Specialties Co.) ";OS, W. Kenneth 193-0 Congress St., Charleston, S. C. ~STEI!I:, Edward, Jr. iR) Laclede-Christy Works Refractories Div., H. K. Porter Co. 4705 Ridgewood :he.. St. Louis, Mo. RA'RD, Edward (G) Vidrio Neutro, S. A. Prolongacion Calle de la Rosa ' Atzcapotzalco, D. F., Mexico R_ N, A. Alfred (G) rshing St., Corning, N. Y. ing Glass Works) RICKSON, Allen J. (G) 4239 E. 74th St., Seattle IS, Wash. (Northwestern Gla<s Co.) RIE TECHNICAL CERAMICS DIV. ERIE RESISTOR CORP. (Bobby L. Joyner,l Box 677, State College, Pa. RXST, Walter S. (1.1 I 908 Wedgewood Dr. Knox\'iIIe 14. Tenn .. (Volunteer Portland Cement Co.) RSLEY, Emmett]. (GJ) R. R. I, Box 352-B 24585 'Wayman St., ~ewhall, Calif. (Thatcher Glass Mfg. Co.) :RVIN, Guy, Jr. (B) Research Laboratory, ~orton Co. Worcester, Mass. eRWIN, Lee R. (G) 419 Tocino, Duarte. Calif. (Carrier Corp.) :RZEX. Frank C. IEI\ 731 S. Greenberrv Dr. West Covina, Caiif. (Bulwark Corp. of America) ~SCHENBURG. Robert L.. II Floresville, Texas :SSELSTYX. Willard .\. IG) R. R I, Canonsburg. Pa. _ (W. .-\. Esselstyn & Co.) ~STES, Joseph F. (W) Haeger Potteries, Inc. 7 Maiden Lane, Dundee, Ill. ETHEREDGE, Otis K. (!II) 252, Gordon, Ga. l;' thern Oays, Inc.) ~ Samuel F. (R) W. 1I:ippon St. Philadelphia 19, Pa. (American Society for Testing Materials) VOL. 3fi, ;\0. 10 (1!I,j'j') EL'B.-\XK, William R. (B) 2301 Hudson Rd., St. Paul 6, Minn. (~linnesota Mining & Mfg. Co.) EUBA:\KS, Alfred G. (E) IOg02 Stella Court, Kensington, Md. (:";ational Bureau of Standards) EUSXER, George R. (R) 1025 Summitt St., McKeesport, Pa. (l'nited States Steel Corp.) E\.\XS. Charle< E. nil 1ill Kendall Rd .. Franklin Park. X. J- I Titanium .\lloy ~[fg. Div. Xational Lead Cn.) E\\:\5. C. L. (\\'J l'ni\ <,r,;al Clay l'ro.lucts Co. 15:78 E. First St .. Sandu,;ky, Ohi" EVA!\S, Daniel Owen (G) Hillcrest & Linden Ave., Mapleview Charleroi, Pa. (Corning Glass Works) E\'A);5, Edward ]. \Velsh Tinplate & ~letal Stamping Co. Ltd., Box 14 LIanelly, Carmarthenshire. Engl:u,,! \'A);S, Isaac R. (G) Pittsburgh Plate Glass Co. \\'orks #10, Henryetta, Okla. EVANS LEAD CORP. (Fred Leake. Jr.) Box 1467, Charleston 25, W. Va. EVANS PIPE CO. (T. J. Evans, III) Uhrichsville, Ohio EVA!\S, Richard F. (W) 504 N. Orchard Rd., Syracuse 9. !\. Y. (Tru-Tile, Inc.) EVANS, Ross M. (S) 604 E. Mechanic St., Brazil, Ind. (Arketex Ceramic Corp.) EVANS, T. J., III (5) Evans Pipe Co., Uhrichsville, Ohio EVANS, W. Gordon Gee. L. Ashworth & Bros, Ltd. Broad Street Works Hanley, Stoke-on-Trent, England EVAXS, William W. (51) 1842 E. !\ational. Brazil. Ind. l.-\merican Vitrified Products Co.) EVERHART, J. O. (SF!) Engineering Experiment Station Ohio State University Columbus 10, Ohio EWALD, Merwin R (M) Box 19A, R. R. I, Monclova, Ohio (Surface Combustion Corp.) E\\IXG. Robert F. (WI) ~Iansfield Sanitarv. Tnc. Perrysdlle. Ohio' EXOLON CO. (Harvey]. Robillard) 1000 E. Niagara St., Tonawanda, N. Y. EYERLY. George B. (S) Malvern Brick & Tile Co., Box 415 Malvern, Ark. F F.-\BER. William ~l. 120i W. Oregon. Apt. D. lrhana. 11l. F.-\BL\XIC, W. L. (R) Laclede-Christv \\.orks Refractorie.< Di\.. H. K. Porter Cn. ~i05 Ridgewood Ave., St. Louis. ~10. FABRICA de LADRILLOS INDUSTRIALES, y REFRACTARIOS. S. A. (Salvador Odriozola Gomez) Apartado 390, Monterrey, N. L., Mexico FABRICA de PORCELANA da VISTA ALEGRE, LDA. Gabinete a Lab. Central de Estudos Candal. Vila Nova de Gaia, Portugal F.\CKT. George P. (WF) 408 Paseo del Ma., Box 878 Palos Verdes Estates, Cali f. (Redondo Tile Co., Ltd.) F-\HRE:S:BRt.'CK. William O. (GIl RR. I, Box 95, Tiffin, Ohio (Sterling Grinding Wheel Co.) FAILMEZGER, Howard (WFI) Victor Insulators Div., IT-E Circuit Breaker Co. Maple Ave., Victor, N. Y . F.\IX. Charles C. IX) Box 92~. Clemson. 5. C. (Clemson College) FAIRFACTS CO., (]. Ryan Smith) Fairfacts St., Trenton 8, K ]. FALCONER, Donald P. (R) 1018 Maple Ave., Evanston, III. (Sales Engineer) F.-\LES, Gordon E. 8141 5. Ellis .\\c .. Chicago I". Ill. F.\LLOX. Frank J. \\\"1) .10 Fo,;ter Ilr.. Framingham. ~lass. I Rayth<,on ~lantlfacttlrillg Co. I F.\LL5. Juseph (GI Dearhorn Glass Co .. (,1,1111 S IT arlem Bedford Park, 1'. n ..\rgo. Ill. FALTER, Arthur H. (R I 8635 Jacob PI., );iagara Falls, N. Y. (Carborundum Co.) F.-\!\DERLIK. ~[ilota Skroupova <157 Hradec Kralu\'<'. Czech,'slll\'aki" F.\R(;O. Janis J. I R) .?S~9 El Caminitu. La Crescenta, Calii. (Gladding. ~lcBean & Co.) F.-\RKAS, Howard (D) United States Stoneware Co. 60 E. 42nd St., New York 17, N. Y. FARNELL, James H. (W) Louthan Manufacturing Co. East Liverpool, Ohio FARR, Archie E. (E) O. Hommel Co., Box 475 Pittsburgh 30, Pa. FARROW, Lewis C. (E) R R I, Clyde, Ohio (Whirlpool Corp.) FASOLD, G. A. (E) 7329 Bernard A,oe., Cincinnati 31, Ohio (Philip Carey Mfg. Co.) FAUCHON-BAUDOT, ]. B. Ets. Fauchon-Baudot 21, A\-e. de Tourville, Paris 7, France FAt.'LK:\ER, Karl B. (G) 179 Victory Hwy .. R.R. 2 Painted Post. X. Y. FAUST, Ernest H., Jr. (RI) 58 Klarman Dr., Mt. Carmel, Conn. (American Refractories & Crucible Corp.) FAUST, George T. (B) 9907 Capitol View Ave. Silver Spring, Md. (U. S. Geological Survey) FAY, Wayne X. (RI) 707 Knox Rd., Villanova. Pa. (General Refractories Co.) FEAGI!\, R C. (BI) Austenal. Inco, Box 625, Dover, !I:. J- FE.\STER. Richard V. (Bn 2606 Urbahn. Laredo. Texas (U. S. Air Force) FEDERAL GLASS CO. (Henry H. Blau) SIS E. Innis Ave. Columbus 7, Ohio FEDERAL SEABOARD TERRA COTTA CORP. (0. E. Mathiasen) Box 301, Perth Amboy, N. J. FEDOCK, Michael P. (R) 4214 Ashwood Dr., 11:. \\'. Canton 8, Ohio (Republic Steel Corp.) FEHR, Gerald K. \Vest Rend. lo\\'a FEIGELSOX, Robert S. Westchester HOllse, Rm. 1008 Fort Worth. Texas FELD. Philip (RJ) 3900 Tyler ..he .. Apt.!. EI Paso. Texas fU. S. Army) FELDMA1'<, Gail H. (GJ) 43 Villa Ct., Hempstead, N. Y. (United States ~avy) -- , .I ., I' J .KER, Ernest (W) 8408 Summer Rd., R. R. 2 X orthfield, Ohio (Ferro Corp.) .LOWS, R. L. (EFl) 748 N. Kensington Ave., La Grange, III. (Century Vitreous Enameling Co.) _ . (RI) 1 Trest Ave. ~ Plainfield, ~. J. (Fels Refractories, Inc.) :"TON, Ernest 990 N. Park Ave., Pomona, Calif. 'iERTY, M. J. (B) Aluminum Co. of Canada Arvida, Que.. Canada "G, Chi-Eng Taiwan Po\\er Co. Xo. 1 Staff Resistance Kuo-Tze-Ko, Mo-Shun Taipei. Tai\\an. Form",a. China "ITY, Robert D. (WI I Minneapolis-Honeywell Research Center 500 Washington Ave. S.. Hopkins, Minn. ~STERMACHER, John E. (RJ) 302 Cberry, Clearfield, Pa. (Harbison-Walker Refractories Co.) ~TON, Walter M. (E) Lithium Corp. of America, Inc. 2560 Rand Tower, Minneapolis 2, Minn. NTZKE, A. Daniel (R) 2330 GeneD Dr., Augusta, Ga. (Babcock & Wilcox Co.) RENCE, Michael, Jr. (B) Ford Motor Co., Scientific Lab. Box 2053, Dearborn, Mich. RGUSON, Donald Box 929, Alfred, N. Y. RGUSON, Douglas }. (D) P.igeon Forge Pottery Pigeon Forge, Tenn. RGUSON, D. Robert, III (R) 401 Vine St., East Liverpool, Ohio t Brick Co., Inc.) R .', Robert F. (G) 1 aleb Drive, Zane"'iIle, Ohio (Continental Can Co., Inc. Hazel-Atlas Glass Div.) RGUSON, Robert L. (5) Yankee Hill Brick Mfg. Co. 728 Stuart Bldg., Lincoln 8, Nebr. RREIRA, Laurence E. (B) 1221 III St.. Apt. 2C. Golden, Colo. (Coors Porcelain Co.) RRES, Daniel Vidplan S. A., Real ~g. 4415 Montevideo, Urugua)' RRIS, Harry Philip (M) 20 Birch Dr., Levittown, Pa. (Simonds Abrasive Co.) RRIS, }ame$ E. (G) Hooker Electrochemical Co. Niagara Falls, N. Y. RRO CORP. (R. A. Weaver) 4150 E. 56th St., Cleveland 5, Ohio RRO ENGINEERING CO. (Benjamin F. Anthony) Box 6508, Cleveland 1, Ohio SLER, Ra\' T. (W) A.A.A. C~rp .. Box 270, Gadsden, Ala. SSLER, A. H. (WFl) Highland Park 5ta.. Panama City, Fla. (A C Spark Plug Div.. General Motors Corp.) TTER, H. (R) Cia. Mexicana de Refractarios A. P. Green, S. A., Hamburgo 51 Apartado Postal 71 Bis, Mexico, D. F. TTERLEY, Guy H. (R) Box 26, Chippawa. Ont.. Canada _~io~red (R) urn Co. of America 233 Victory Pky.. Cincinnati 8, Ohio TTERS, Cecil R. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway. Toledo 5, Ohio L. 36, ~o. 10 (l ~1;)I) FETZER, George W, (M) 1205 17th Ave., Columbus 11, Ohio (George Fetzer Ceramic Supplies) FEY LIJol' G, Claus A. Eie Stentlilifabrik Egersund, Norway FIBERGLAS CANADA, r:TD. (John MacRae) Box 309 Guelph, Ont., Canada FIEDLER, William S. (G) Bjorksten Research Labs., Inc. Box 265, Madison 1, Wise. FIELD, Theodore E. (B) Corhart Refractories CO. 1600 W. Lee St., Louisville 10, Ky. FIELDS, David T. (En 2505 ~. \Y. Sixth St., Gainesville. Fla. (~Ietal Enameling Corp. of Florida) FIELDS, Ernest, Jr. (R) R R.I. Box 30, Frostburg. Md. I Bi!!: Sava!:'e Refractories Div.) FILES, John A. (B) , Box 47, Amboy. Ind. (RCA Tube Div.) FILIPPI, Charles R. (5) Illinois Brick Co. Box 206, Blue Island, III. FILIPPI. Hugo (SF) 11406 Calumet Ave., Chicago 28, Ill. (Illinois Brick Co.) FILLMORE, Charles L. (WI) Globe-Union, Inc. 900 E. Keefe Ave.. Milwaukee I, Wisc. FINDLAY CLAY PRODUCTS CO. (R. S. Craft) Washington, Pa. FINKEL, Robert G. Box 163, Wadsworth, III. FINLAY, G. R. (R) 2231 Waters Ave. Niagara Falls, Ont., Canada (Norton Co.) FINLAYSON, John R. (X) American-Standard, Foreign Div. 40 W. 40th St., New York 18, N. Y. FINNEY, Edwin L, (S) Oaycraft Co., Shawnee, Ohio FIRESTINE, Arthur G. (G) 34 Dewey Ave., Fairport, N. Y. (Bausch & Lomb Optical Co.) FISCHER, Eugene A. (R) 108 Newton Ave., N. \\'orcester 9, Mass. (Norton Co.) FISCHER, Robert J. (W) 18 Fairway Ave. West Long Branch, N. J. (Signal Corps Engineering Labs.) FISH, E. Thomas (RI) Great Lakes Carbon Corp. 58th & Pine Ave., Niagara Falls, X. Y. FISHER, Eugene A. (W) Electric Auto-Lite Co. Spark Plug Div., Fostoria. Ohio FISHER, Henry C. (R) 50 Coventry Rd., Worcester 6, Mass. (Norton Co.) FISHER, Joseph R. (W) Bell Telephone Labs., Rm. 1A-341 Murray Hill, N. J. FISHER, Richard G. 17 Wells St. Hornell, N. Y. FISHER, William V. (G) Anchor Hocking Glass Corp. Lancaster, Ohio FISHLEY, William S. (W) Sparta Ceramic Co. East Sparta, Ohio FISH-SCHURMAN CORP. (Murray Yawitz) 70 Portman Rd. New Rochelle, N. Y. FITZGERALD, Alex E. (Rn A-4 Avon Apts., Narberth, Pa. (General Refractories Co.) FITZGERALD, J. Vincent (W) Tile Council of Am. Research Center Rutgers. The State University School of Ceramics Xew Brunswick, N. }. FITZPATRICK, William D. (R) 5127 S. Passage Dr.. Pittsburgh 36, Pa. (Harbison-Walker Refractories Co.) FITZSIMMONS, Elmer S. (RI) Chern. & Abrasives Research Dept. Cincinnati Milling Machine Co. Cincinnati 9, Ohio FITZSIMMONS, Robert F. (W) R. R. I, Oakfield, N. Y. (Lapp Insulator Co., Inc.) FIX. Frank A. (X) Posey Iron \Yorks. Inc. Brick ~lachinery & ~li"er Oi\". Lancaster, Pa. FIX, William G. (~I) Carborundum Co., Globar Div. -1335 W. 47th St., Chicago 32, Ill. FL\X.-\GAX, Charles D. (B) 1152 Oak Hill Ave., Attleboro, ~lass. (~letal & Controls Corp.) FLEISCHER, Arthur (B) ~ickel Cadmium Battery Corp. Box 349, Easthampton, Mass. FLEMING, A. P. M. Metropolitan Vickers Electrical Co., Ltd. Trafford Park, Manchester 17, England FLEMING, Charles A. (El) 3613 General Bates Dr. ~ashvi1le 4, Tenn. (Pemco Corp.) FLEMING, David M. (S})' 040 N. Front St., Milton, Pa. (Glen-Gery Shale Brick Corp.) FLEMING, Thomas T. (R) Frank Samuel & Co., Inc. 2200 Lincoln-Liberty Bldg. Philadelphia 7, Pa. FLEXON. John D. (R) 3440 Gallatin Rd., Toledo, Ohio (Owens-Illinois) FLICK, Fulton B. (R) Brown, Critchlow, Flick & Peckham 1706 First Nati6nal 'Bank Bldg. Pittsburgh 22, Pa. FLINT, E. P, (BI) Arthur D. Little, Inc. 30 Memorial Dr., Cambridge 42, Mass. FLINT, Francis C. (GFI) Continehtal Can Co., Inc. Hazel-Atlas Glass Div. 15th & Jacob Sts.. Wheeling. W. Va. FLORENCE, Jack M. (G) Kimble Glass Co. Box 1035-1036, Toledo I, Ohio FLORIDA TILE INDUSTRIES, INC. (James W. Sikes) 608 Prospect St. Box 451, Lakeland, Fla. FLU, Eldon Bruce (W) 1533 Crooks Rd., Royal Oak, Mich. (Ceramic Div. Champion Spark Plug Co). FLYNN, Paul H. (B) International Nickel Co., Inc. Bayonne Works, Bayonne, N. J. FOGELBERG, Sven Webb's Crystal Glass Co., Ltd. Dennis Glassworks Stourbridge, England FOLKERS, Charles L. (R) 52-1 X. Second St.. Apt. 13 San Jose 12, Calif. (Kaiser Aluminum & Chemical Sales Corp.) FONTANA, Eugene H. (G) Box 259, Corning, N. Y. (Corning Glass Works) FONVIELLE, Frank P., Jr. (W1) Dentist Supply Co. of New York 500 W. College Ave., York, Pa. FOOTE MINERAL CO. (John D. Clark), 18 W. Chelten :\\-e. Philadelphia 44, Pa. FORAKER, Robert W. (E1) Titanium Pigment Corp. 99 Hudson St., New York 13, N. Y. FORBES, Charles C. (G) Allen B. Du Mont Labs. ;50 Bloomfield Ave., Clifton, N. J. RUSTER ORBES, Lewis J-B. (G) Pilkington Bros. (Canada) Lt,I 165 Bloor St., E. Toronto 5, Ont., Canada ORD, Frank J. (W) Jordan Tile Mfg. Co. 909 Railroad St., Corona, Ca;if. o_red J. (5) 95, San Francisco, Calii. u)tant) '0 ,George D. (WI) 2136 Wilmer St., Zanesville, Ohio (Mosaic Tile Co.) 'ORD MOTOR CO. (Michael Ference, Jr.), Scientific Lab. Box 2053, Dearborn, ~lich. 'ORD, Walter D. (GI) Pittsburgh Corning Corp. Research & Development Div. Port Allegany. Pa. 'ORD, William D. (E) 1704 W. 54th St.. La Grange. Ii:' (Sears Roebuck & Co.) ?ORDS PORCELAIN WORKS (1. A. Han~en) Perth Amhoy. :'\. J. FORESMAN, Grover C. (G) .. 212 Cedar St., Cornillg, N. Y. (Corning Gln \\'ork~) FORESTER, Wilfred G. (M) Veritas Firing System Co. Box 974, Trenton 6, N. J. FORJAZ, Nicolau Porto Ferreira, C. P. Sao Paulo, Braz:i1 FORKNER, Henry R. (Xl) 201 Fairview Ave., Blacksburg, Va. (Virginia Polytechnic Institute) FORMAN, Srdney A. (B) Dept. of Agriculture, Chemistry Di,. Science Service . ':. Ottawa, Ont., Canada FORNIA, Robert F. (E]) ". 204 Harmon Dr., Lubbock, Texas ; ,:(U. S. Air Force) FORTH, Robert D. (E) ~.... 369 N. W. Circle Dr. kakee, III. ence Stove Co.) F CK, Marion L. (OF) 100 X. Main St.. Alfred. X. Y. FOSTER, Bryan D. 141 E. State St., Wellsville. X. Y. FOSTERFORBES GLASS CO. . (F. R. Mot-eh) Marion, Ind. FOSTER, H. B. (5, Brick & Tile Service, Inc. Box 6305 Summit Sta. Greensboro, K. C. FOSTER, Luther M. (B) Aluminum Co. of America Alcoa Research Labs. Box 772, Kew Kensington, Pa. FOSTER, Wilder D. (B) 5405 BO"'er Ave., Verona, Pa. (U. S. Bureau of Mines) FOSTER, Wilfrid R. (BF) Department of Mineralogy Ohio State University Columbus 10, Ohio FOSTORIA GLASS CO. (Roy G. Yeater) Mounds,i1le. \\'. Va. FOULDS, Donald T. (W) 4505 W. 145th, C1e"eland II. Ohio (Cleveland Ceramic Corp.) FOX, Charles S. (R) . Aluminum Co. of America 3615 Olive 5 .. St. Louis 8, !'Ilo. FOX, Marilyn Box 161, Alfred, N. Y. FRAD, WilJiam A. (R) 1800 Oak St., Rolla, Mo. (Mi,souri School of Mine,) FRAHME, Herman H. (\\'1) 2358 Banning Rd., Akron 13, Ohi" . S. Stoneware Co.) E. Dudler P.. Jr. (1) abrica Kaciollal de Porcelana S..-\. Apartado 2056, Caracas. \'eneZtleb F RANCE, J. H., REFRACTORIES CO. (William A. France) Snow Shoe. Pa VOL. '36, :'\0. 10 (1957) FRANCE, William A. (R) J. H. France Refractories Co. Snow Shoe, Pa. FRAXCESCHIKJ. Felippe J. V. de A. Ceramica Sao Caetano Caixa Postal 278, Sao Paulo, Brazil FR.\:'\CIS, Ronald K. (ll Box 164, Alfred, X. Y. FR.\:'\CISCO, Allen C. (Rl) 180 Brook Lane. Chesterland, Ohio I Ko1cast Industries, Inc.) FRAKCK. Leon Et . Franck & Steeman, S. A. 20. A"enue Emm,al)ucl Haren-Xord/Brussels, Belgium fR.\;":CL, Josef (H) 1802 Perth St .. Toledo 7, Ohio (Owens-Illinois) FRA;'; K. Henry A. (\V) Rockport Sanitary Pottery Corp. Rockport. Ind. FRAXK. John (0) Frankoma Pottery. Box 789 Sapulpa, Okla. FR.\;';KLI:'\. Earl \Y. (GIl 40! Brqad St .. Port :\lIe~any, Pa . I Pitt-,hur~h Cornin~ Corp.) FR:\XKLIX. William S. (\\'1) 70-07 21l1,t St.. Glen Oaks. L. I., X. Y. I Sperry Gyroscope Co.) FRANKOMA POTTERY (John Frank) Box 789 Sapulpa, Okla. FRA~nZ. Sdmuel G. (:\{) S. G, Frantz Co.. Inc. Box 1138, Trenton 6. N. J. FRANTZ, S. G., CO., INC. (Samuel G. Frantz) Box 1138 Trenton 6. N. J. FR:\;';TZ. Thomas O. (W) 15 Echo Lane, Levittown, Pa. (Trenton Potteries Co.) FRAKZ. Leo J. (S) Acme Brick Co.. Malvern, Ark. FRASER. Orray T. (GI) 574 E. Mithoff St., Columbus 6. Ohio (B. F. Drakenfeld & Co., Inc.) FRASER, Walter A. (G) 1320 E. 56th St., Chicago 37, III. (Chicago Midway Laboratories) FRASER. W. R. (S) Frocer Brick Co., Box 144 Dallas 1, Texas FR:\l:'LI~J. Felix M. (R) South Shore, Kv. (Plibrico Co.) . FRAZTER. C E. IGF) Frazier-Simplex. Inc. 436 E. Beau St" Washington, Fa. FR.o\ZTER. C T. (G) 527 E Beau 51.. Wa~hin:::1on. Pa. (Frazier-Simplex, Inc.) FRAZIER . .T. Earl (GFT) Frazier-Simplex. Tnc. 43(, E. Reau St .. Wa~hington, Pa. FRAZIERSIMPLEX, INC. Ie. E. Fra7ier) 436 E. Beau St. Wa<hin/rton. Fa. FRECHETTE. Howells (Life, SF) 52 Park Ave.. Ottawa, Ont.. Canada FRECHETTE, Van Derck (BFI) State University of New York College of Ceramics Alfred, N. Y. FREDERICK. C. L. (RI) 2.15 ~Icad()\\'ood Ln. Cha~rin Falls, Ohio (X,rth .-\merican Refractories Co.) FREDERICK. Gilbert M. (R) Babcock & Wilcox Co. 3 Penn Center Plaza Philadelphia 2. Pa. FREDERICK. Vernon W. (G) Libbey-Dwens-Ford Glass Co. Ro"ford, Ohio FHEDERICKS. John D. (5) Pacific Cia\' Products Box 11 7f! .. Terminal Annex Loc An!(eles 54, Calif. FREDERICKS, john D. 411 Herrick St., Elmira, K. Y. FREDRIKSSOK, John I. (R) Norton Co., Box 87 Niagara Falls, Ont., Canada FREEMAN, Charles A. (RFI) Freeman Fire Brick Co. Box 606, Canon City, Colo. FREDtA!\, Edgar H. (W) Korris-Thermador Corp. 20118 E. Valley, Walnut, Calif. FREE~I.-\X. john L. 47g1 \\'allingford St. Pittshurgh 13, l'a. FREE~I:\N, Joseph (R) General Electric Co. 3198 Chestnut St., Philadelphia 4. Pa. FRENCH, ~Iyrtle M., (Df) 128 N. ~lain St., Alfred, ~. Y. FRENCH, Preston \Y. (GJ) 1517 Union A \'e., Brackenridge, Pa. (Pittsburgh Plate Glass Co.) FREY, E. F. OIl DeYilbiss Co. Phillips & Dctroit :\ "e. Toledo I, Ohio FREYDELL,Octa"io Loceria Colombiana Apartado Aereo 10-46 ~ledellin. Colombia FRIDDLE. Edward W. 15 S. West St., Raleigh, N. C FRIEDBERG, Arthur L. (EF) University of I11inois 117 Ceramics Bldg., Urbana, III. FRIEDMAN, LOlli~ K. (W) Homer Laughlin China Co. 212 Fifth Ave.. New York. ~. Y. FRIGIDAIRE DIV. GENERAL MOTORS CORP. (W. H. Pfeiffer), Engineering Lab. Plant #2, Dayton I, Ohio FRISK, Norman E. (R) 2046 Evansdale A\e., Toledo 7, Ohio (Owens-I11inois) FRITZ, Earl C. (W) 86 S. Main St., Franklinville. N. Y. (Precision Ceramics, Inc.) FRITZ, E. H. (WFI) 710 Walnut St., Latrobe, Pa. (Stupakoff Div., Carborundum Co. j FROBERG, Laird (R) Owens-Corning Fiberglas Corp. Case Ave., Newark, Ohio FROME. Howell E. (M) United Fuel Gas Co., Box 1273 Charleston 25. W. Va. fRONCZAK, E. T. (S) . Richland Shale Brick Co., Box 328 Mansfield, Ohio fROST. Leon J. (M) Box 138, Lewiston. N. Y. (Titanium Alloy Mfg. Div., :\"ational Lead Co.) FRY. Herbert G. National Enamels. Ltc!.. 50l Norman Rd. Greenwich, London. S. E. 10, England FRYE, Harry D. (G) R. R. 4, Vinceunes, Ind. (Blackford Window Glass Co.) FRYE, John C. (B) State Geological Sun'ey 121 Natural Resources Bldg. Urbana, Ill. FRYE, John F. rR) Olive Hill. Ky. (General Relr3ctories Co.) FRYSINGER. james B. (M) Pennsylvania Glass Sand Corp. Two Gateway Center. Pittsburgh. Pa FUENZALlDA, Javier H. (W) Foreign Div.. American Radiator I'; Standard Sanitary Corp. 40 W. 40th St., Kew York 1R. ~ Fl')II. Takashi Vniversity of :'\orth Carolina Dept. of Chemi~try, Chapel Hill. :\. C. FULKER. Richard H. (EI) 1408 Kicklin Ave., Piqua, Ohio (Pemco Corp.) ." LLER, A. A. (X) 322 S. Twyckenham Dr. South Bend, Ind. (Sollit Construction Co., Inc.) LLER, Donald H. (El) 335 S. Cook Ave., Trenton, N, J. (Trenton Fabricated Metal Co,) L.L. R. (EI) Sou.th St., Frankfort, Ind, m-Richardson, Inc.) LL , Richard B. (WI) Universal Clay Products Co. 1528 First St., Sandusky, Ohio LLER, Richard G. (W) D. E. McNicol Pottery Oarksburg, W. Va. LLER, Wilfred (E) General Steel Wares Ltd. Adelaide & Nelson Sts. London, Ont., Canada LMER, Raymond C. (\\'1) Stackpole Carbon Co.. St. Marys. Pa. :'RATH, Richard M. (RI) University of California 264 Hearst Mining Bldg. Berkeley 4, Calif. ~K, Harry C. (G) Eagle-Picher Co., Insulation Div. Box 290, Joplin, Mo. \'KEY, John H. (G) Carr-Lowrey Glass Co. Box 356, Baltimore 3, Md. -lKHOUSER CO. (R. L. Crouch) Box 312, Blue Ridge Summit, Pa. 'lNELL, John E. (MI) Southwest Research Institute Box 2296, San Antonio 6, Texas ~TH, John V. (E) 7542 Cabrillo Ave., La Jolla, Calif. (Solar Aircraft Co.) iSELL, Lynn E. (E) 3501 Tyrone Dr., Louisville 18, Ky. (General Electric Co.) VA, Tasuku Tohoku University D.f Metall:g)" Sendai. Japan 'FNEY, LeRoy J. 1104 W. Oregon St., l'rbana, Ill. aN, 1. V. (G) 2616 Latonia Blvd., Toledo 6, Ohio (L-O-F Glass Fibers Co.) LEY, Matthew D, 1800 Roanoke St., Seattle 2, Wash. NER, Taylor M. (W) 215 Steedley Dr., Louisyille 14, Ky. (American Radiator & Standard Sanitary Corp.) SER, R. Arthur (G) Ball Brothers Co., Inc., Muncie, Ind. .BREATH, William W., Jr. (RI) Babcock & Wilcox Co. 1201 Kemper St., Lynchburg, Va. .E, KENNETH (D) Mosaic Tile Co., Zanesville, Ohio .E, Richard H. (B) 183 Ridgewood Rd. West Hartford, Conn. (Combustion Engineering, Inc.) .LUP, John (GI) Radio Corp. of America, Tube Dh'. tiS S. Fifth St., Harrison, N. J. USHA, Richard 1. (W) Continental Ceramic Corp. Box 41. Biglerville, Pa. VIN, G. H., Jr. (S) Rockford Brick & Tile Co. Rockford, Iowa VIN, Richard J. (S) Sheffield Brick & Tile Co. he Id I, Iowa . , avid L. (R) . sey Zinc Co. of Pa. Re h Dept., Palmerton, Pa. . BLE, John D. (W) Bell & Gossett Co., 8200 Austin :"'e. \Iorton Grove, III. . :W, :\0. 10 ll!);)'i') GAXDY, Robert J., Jr. 2261 Ontario Ave. ~iagara Falls, X. Y. GAl\G.LER. James J. (R) 20538 Stanford ,\ \'e. Fain'ie\\' Park 2(,. Ohio (Xational Ad";sory COmmittce for Aeronautics) GAl\GULI, l:mapati Bengal Enamel \V orks Ltd. P. O. Bengal Enamel, Dist. 2~ l'arI"311aWest Bengal, India GAXPULE, Anant K. Parshuram Pottery 'Works Co., Ltd. Mon'i, Saurashtra, India GA!'\TS, Sheldon B. (D) Ceramic Associates. Inc. 3650 Dyre A\'e., Xew York 66, N. Y. GARBISCH. Xorbert S. (W) Garco Products, Inc. Box 351, Butler, Pa. . GARCIALEAL, Ramon (~II) Apartado Postal 1115 Monterrey X. 1., Mexico (Manufacturers Representath'e) GARCO PRODUCTS, INC. (Norbert S. Garbisch) Box 351 Butler, Pa. GARDEN, Henry R., Jr. (S) Box 508, Salem, Va. (Old Virginia Brick Co., Inc.) GARDNER, John B., Jr. (S) Hope Brick Works Box ISS, Hope, Ark. GARDNER, Walter E. (S) Ladrillera Monterre)' S, A. Apartado 360 Monterrey, N. 1., Mexico GARDON, Robert (G) Mellon Institute. 4400 Fifth Ave. Pittsburgh 13, Pa. GARFIELD REFRACTORIES CO. (Kenneth A. Rugh) Bolivar, Pa. GARLAND, C. F. (S) Mason City Brick & Tile Co. Mason City, Iowa GARLICK, Oakley H. (}I) PaulO. Abbe, Inc. 400 Center Ave., Little Falls, N. J. GARLICK, Philip 1. (1) I Gladys St., Cyrildene Johannesburg, South Africa (Primrose Brick Works) GARONZIK, S. H. (S) 4211 Brook-dew Dr., Dallas, Texas (Crown Brick Mfg. Co.) GARRONI, Ricardo Rua Padre Joao Manuel 975 Sao Paulo, Brazil (Ceramica Sanitaria Porcelite SI A) GARSTANG, Alec King, Taudevin & Gregson Ltd. Grindlegate Works, Scotland St. Sheffield 3, York, England GARTNER, Carl W. (W) General Color & Chemical Co., Inc . Box 7, Minerva, Ohio GARTNER, George C. (w) General Color & Chemical Co., Inc. Box 7, Minen'a, Ohio GARVE, T. Walter (SFl) 69 W. Weisheimer Rd. Columbus 14, Ohio (Consulting Engineer) GARVERICK, R. A. (D) Huber-Warco Co. American Clay ~lachinerr Div. 202 N. Greenwood St., Marion, Ohio GARVEY, Lawrence P. (WI) RCA Victor, 415 S. Fifth St. Harrison, N. J. GASKINS, W. \\'. (Ml) Sierra Talc & Clay Co. Box 390, South Pasadena, Calif. G.\~Ql:E, W. D. Box 2821. Clem,on College Sta. Clem,on, ~. C. G.\TES, Daniel W. (BI) 3026 Cre,cent Circle, S. E. Huntsville, Ala. Ie S. Army Ord., Redstone Arsenal) C.-\TES. Louis E., Jr. (B) 52~i Knowlton SI. L05 Angeles ~5. Calif. I Hughes :\ircraft Co.) GA TES. ~Iajor E. (R) ii3 \'ista Grande A\'e. Los AItos, Cal if. GATLlX, E. H. (SJ Texas Clay Products Co. Box T. ~Ialakoff, Texas GAl"DlAXO, Victor ~1. (W) Sanitari05 EI Aguila S. A. Apart ado Po<ta! 2(;808, Zona 14 Mexico, D. F.. GAUNDER, \"'ilbt:r F. (G) Pitt,burgh Plate Glass Co. Works 't\o. II. 111. Vernon, Ohio GAl'TSCH, Murray C. (Ml) ~Ietal & Thermit Corp. 415 E. 151st St., East Chicago, Ind. GAVIN, G. P. (W) Kohler Co., Kohler, Wise. GAWTHROP, Alfred (S) 885 Maplewood Rd., Lake Forest, Ill. (Chicago Brick Co.) GEE, Kenneth H. (B) 2033 Westfield Terrace, Bethlehem, Pa, (Bethlehem Steel Co.) GEIER, Philip 0., Jr. (R) Cincinnati Milling Products Dk Cincinnati Milling Machine Co. 4701 Marburg Ave., Cincinnati 9, Ohio GEIGER, Charles F. (RFl) Carborundum Co., Box 268 Perth Amboy, N. J. GEIGER, Joseph S. (M) 46 E. Welling Ave. Pennington, N. J. (Titanium Alloy Mfg. Div., National Lead Co.) GEISINGER, E. E. (EF) Pfaudler Co., 1000 West Ave. Rochester 3, N. Y. GELLER, R. F. (WFI) 5427 York Lane, Bethesda 14, Md. (National Bureau of Standards) GELSTHARP. Frederick (GF) 1134 Park St" Tarentum I, Pa. GELTMAN, Gerald (BJ) 276 Winthrop Rd., Teaneck, N. J, (Curtiss-Wright Corp.) GEMP, Robert W. (R) 500 Michell St., Ridley Park, Pa. (Botfield Refracteries Co.) GENDEL, Sydney Z. (R) 4050 Eastway Rd. South Euclid 21, Ohio (Zirconium Corp. of America) GENERAL CERAMICS CORP. (Salvatore Ortepio) Crows Mill Rd., Keasbey, N. ]. GENERAL COLOR & CHEMICAL CO., INC. (George C. Gartner) Box 7, Minerva, Ohio GENERAL ELECTRIC CO. (1. E. Thiess) Insulator Dept. Box 57, Baltimore 3, Md. GENERAL ELECTRIC CO. (W. S. Kahlson) Lamp Dept., Pitney Glass Works Nela Park 12, Oeveland, Ohio GENERAL ELECTRIC CO. Specialty Electron ic Components Dept .. (l'\. F. Shofstal\) 1811 LeMoyne :"'e., Syracuse 8, N. Y. GENERAL GLASS INTERNATIONAL, INC. I \'ictor A. Plumbo) S S. Virginia ..\\-e. .\tlantic City, N. J.' GENERAL REFRACTORIES CO. (Russell P. Heuer) 1520 Locust St. Philadelphia 2, Pa. GENERAL SHALE PRODUCTS CORP. I R. B. lIocka'lay), Kingsport, Tenn. :30HOSTER I I I ! I I ,k. 1'1 :-.lTRY, Raymond (G) .... lexander H. Kerr & Co., Inc. Box 2008, Santa Ana, Calii. .'\TSCH, A. Page (M) L'nited Clay Mines Corp. 101 Oakland St., Trenton, N. J. :\TSCH, Bernhard F. (M) . d Clay Mines Corp. kland St., Trenton. ;-.:. J. J \'. R. (W) C sburg Pottery Co. Canonsbu~g, Pa. ORGlACAROLINA BRICK & TILE CO. (J. C. Hagler. Jr.) 10 Campbell Bldg., .... ugu-t". G;l. ORGlA KAOLIN CO. (Rohert H. Bollinger) 433 ~. Broad St., Elizabeth 3. X. J. PHART, Charles D. (5) Cedarhurst, Holly Spring-. :\Ii". (Hully Springs Brick & Tile Cu, Inc.) RBER, Oscar L. (W) Gerber Plumbing Fixture Corp 232 N. Clark St., Chicago I, III. RCAR, Francisco J. S ...... Cristalerias Del Uruguay Comercio 1491, Montevideo, Uruguay RSTENSCHLAGER, V., Jr. (R) Babcock & Wilcox Co.. Box 923 Augusta, Ga. RSTER, C. W. (WI) Box 614, East Liverpool. Ohio (Patterson Foundrv & :\lachine Co.) THIZ\, H. Wynn (R') H. K. Porter Co., Inc., Refr. Dk' 2500 First National Bank Bldg. Pittsburgh 22, Pa. TTO, Allan (BJI) Pratt & Whitney Aircraft Canel Project, Middletown, Conn. EIHNG, -Leonard G. I GF) Preston Laboratories Box 149, Butler, Pa. I.COMELLI, Domenico t .. Refrattari _ ra Azionaria ustrie 52 Cas. Post. 308 era. Venice, Italy I.XG, Yu Kim Choan Huat Co. Inc. III Jose Rizal St., Mandaluyong Rizal Province, Philippines IB, Mary J. American Ceramic Societv 4055 N. High St., Columbus 14, Ohio lEONS. ]. Arthur (5) Elgin Standard Brick )[fg. Co. Box 546, Elgin. Texas IBS, Melvin B. (E) Inland Steel Co., Quality Control Dept. East Chicago, Ind. IBS, William C. (R) W. C. Gibbs Co. 401 Brown Marx Bldg. Birmingham, Ala. ISON, Frank B. (E) 9 Terrace Circle Great Neck, L. I., N. Y. (Seaporcel Metals. Inc.) :SON, R. L. (WI) 1314 Wilmington Ave. New Castle, Pa. (Shenango China, Inc.) :SON, Robert C. (E) Parker Rust Proof Co. 21n E. Milwaukee Ave. Detroit II, Mich. :SEKE. Frans Kockums Emaljerverk Ronnehv. Sweden :SER. Ralph H., Jr. (E) Rheem :\lanufacturing Co. 3 Firestone Blvd. Gale, Calif. : ard A. (1) B. 3. Alfred, N. Y. '. David (D) 122 ~l cCall St .. Bennington, Vt. (Cooperative Design) L. :lti. ;\u. ](I (IK),) GILBERT. :\rk G. (5) Fate-R<'ot-Heath Co., Plymouth, Ohio GILBERT. Frank C. 2" .Labyette :\ ve .. :\Iiddletuwn, N. Y. GILBERT. George W. (G) Owens-Corning Fiberglas Corp. 5u8 :\ladisuu A,e .. Ne\\~York 22. N. Y. GILES . .lallie, H .. Jr. (EI) J' 51 Beet! ~t.. ,\pt. 2 I'itt-burgh 5, Pa. (0. Hommel Co.) GILES, Rarmond (\Y) 142 McKeever St., Crooksville, Ohio (Crooks,'ille China eo: I GILES, Thomas :\1. 1674 Berkshire Rd .. Columbus, Ohio GILFILLAN, B. T. (R I Climax Fire Brick Co., Clim"x, I'a GILFILL:',.:>;. J. :VI. (W I :\ew Jersey Porcelain Co. Box 90S. Trenton 5, 1\ . .I. GILL. John H. (R) . Gill CJay Pot Co., Muncie. Ind. GILL. Jo"ph \\'. DII) (,~5 \';"1 Buren SI.. De, l'laine,. Ill. (t'. S. Grpsum Co,) GILL, LaVerne N. (WI) American Radiator & Standard Sanitary Corp., Box 268 Torrance, Calif. GILL. Leo L. (R) Harbison- \\'alker Refractories Co, 1800 Farmers Bank BldR. Pittsburgh 22, Pa. GILL, W. T., Jr. (S) Texas Brick Co.. Box 510 Brownwood, Texas GILLESPIE, H. M. (M) 225 Broadway, Kew York i, N. Y. GILLJ..... RD, Joseph \Y. (D) Hampton Institute Box 14. Hampton. Va. GILLINDER BROTHERS, INC. (J. Fletcher Gillinder) Port Jervis, N. Y. GILLINDER, J. Fletcher (G) Gillinder Brothers, Inc. Port Jervis. N. Y. GILLON. Paul N. (B) Carhorundum Co .. Librarv 1-2 Nia~ara Falls. X. Y. . GILU:LY. William F. (G) PittshurRh-Corning Corp. Box 72. Sedalia, Mo. GIL TNER. Benedict C. (S) Foley & Grove, Bensenville, III, (Lindberg Engineering Co.) GIMSON, Joseph F. Worcester Royal Porcelain Co., Ltd. Royal Porcelain Works \Vorcester, England GIKGOLD. Jacob 6 rue de Fontenav, Plessis-Robinson Paris. Seine, Fran~e GIRALDEZ, Emilio Ceramica Nacional C. A. Box A-10, Riobamba, Ecuador GIR.\RD. R. T. (EJ General Ele<:tric Co. Bld~. 258. 2nd Fl. One River R,l .. Schenectady. N. Y. GITTER, Alice Josephine (MF!) 39 \Y. 70th, New York 23, N. Y (Whittaker. Clark & Daniels. Inc.) GITZEX, "'alter H. (R) 1 Wesley Dr.. Belleville, III. (Aluminum Co. of America) GL\B\l". Ern"t R. (G) 2" Colle~e R,1.. BurIinRton. ~lass, I Raytheon :\ranufacturing Co.) GLADDI:\G. Albert C. (5) Gladding Bros. Mfg. Co. Third & Keyes St.. San Jo". Calif. GLADDING, McBEAN & CO. IS. Y. Saginor) 2901 Los Feliz Blvd. La, Angeles 39, Calif. GLADNEY, Kurt (G) Fiberglas Canada Ltd., Box H Samia. Ont. Canada GL:\SER, Frank W. (B) :\lIoy Precision Castings Co. J~55 \\'. 150th St., Cleveland II, Ohio GLASER, John H. eG) rniscience Inc. 112 Crooked Billet I~J., Hatboro, Pa. GI.:\SSER. Fred P. (BJ I }'enns\'lvania State Cuiversitv 1O~ :\r'ineral Sciences Bldg. ' l'ni ,'ersit" Park. Pa. (;1..\TTER. J~ke (B) 10--13 Prospect Rd., Pltt~hurgh 2i. Pa. I \\'estinghouse Ele<:tric Curp.) ,;1..\ TZ ..\)fred C. (R) JoJ :\lerrill St., Clearfield. Pa. I Curti,,-\\'right Corp.1 I d. \ZE. Franci, \\'. lGFII 4! 11 Hamilton St.. Hyattsville. ~ld. I '.;ati"na! Bnreau of Standards) GLEN-GERY SHALE BRICK CORP. ('Gordon E. Lewis) I",x 86. Shillington. Pa. GLENSHAW GLASS CO. INC. (George \Y. :vrerer) Glenshaw, l'a. GLOBE-UNION INC. (J. Fletcher Harper) 900 E. Keefe Ave., Milwaukee I. Wise. GLOSSBRENNER, D. 1. (M) R.R. 12, Box 261, Indianapolis, Ind. (Kaolin, Inc.) GLOSTEX CHEMICALS, INC. (c. G. Wurtsbaugh) 3056 Bandini Blvd. Los Angeles 23, Calif. GLOWACKI, George V. (W) 63 Linden Ave., Bloomfield, N. J. (Radio Corp. of America) GLYXX. T. W. (G) 1505 Fairidge Dr., Kingsport, Tenn, (Blue Ridge Glass Corp,) GODBOLD, Jack W. (W) 1303 Bluebird Ln., Garland, Texas (Ferro Corp.) GODDARD, W. T. (W) Box 428, Hamilton, Ont.. Canada (Canadian Porcelain Co,. Ltd.) GODEJAHX. Gordon C.. Jr. (G) 10226 Woodworth St., Apt. 3 Inglewood. Calif. I Hughes Products Co.) GODFREY, T. Gordon, Jr. Box 3434. Clemson College Sta. Clemson. S. C. GODOY, E. A., & CO., INC. (Emilio A. Godoy) 25 Broadway New York 4, N. Y. GODOY. Emilio A. (R) E. A. Godoy & Co., Inc.. 25 Broadway New York 4, ~. Y. GOETCHIl:S. Don R. (EF) Ferro Corp. 4150 E. 56th St., Cleveland, Ohio GOI:\. Fred L. (51) Gladding, McBean & Co., Lincoln, Calif. GOLDING-KEENE CO. I H. B. DuBois) Box 456. 'Keene. ~, H. GOLDSMITH, Julian R. (B) C niversity of Chicago Dept. of Geology. Chicago 37, Ill. GOLDSTETN, ~larcy B. (SJ) 6 Glenfair Rd., Fair Lawn, iii. J. (l'nitert States Army Chemical Corps.) GOLDSTEIX, :Vfartil' (G) ~lellon Institute. Pittsburgh 13, Pa. GOLIBER, Edward W. (B) 2602 N, Connecticut, Royal Oak. Mich. (General Electric Co.) GOMEZ. Salvador Odriozola (R) Fahrica de Ladrillos Tndustriales y Refractarios. S. A., Apartado 390 Monlerrey, N. L., Mexico GONDER, Lawton (W) Gonder Ceramic Arts. Inc. Box 448. Zanesville, Ohio GOXZALES. Narciso (M) Eagle Pencil Co. 710 E. 14th St., New York 9.\N. Y. GOODFELLOW. Teo M. (W) Tektroni~. Tnc. RII:\. ,-':31 llllrtland 7, Ore. Hosn:1{ -11 I I I I I ! I j OODHUE, R. K. (M) Stauffer Chemical Co. 326 S. Main St., Akron 8, Ohio OOD~lAK, Gilbert (B) General Electric Research Lab. Box 1088, Schenectady, N. 1. OODMAN, James S. (E) can Radiator & Standard ry Corp., 834 E. Broadway sville 4, Ky. OOD~lA;":. Philip (G) Corning Glass Works, Corning, N. Y. OODRICH, Hobert R. (\YFI) 1622 Santa ,Barbara Ave. Glendale 8, Calif. (Gladding, McBean & Co.) OODWIN, Rouen L. (Si R. R. 2, Box 106, ~lineral \\'ells, Texa, (Mineral \\'ells Clay Products, Inc. 1 ;OODWIN, William Jarrard fBi 3464 Wallace Dr., Grand Island, !\. Y. (Titanium Alloy ~lfg. Div., National Lead Co.) ;ORDON, Irwin (W) RCA Laboratories Div. Princeton, N. J. ;ORML1, Maurice W. (W) 7330 Miami Hills Dr, Cincinnati 43, Ohio (Cincinnati Milling Products Div., Cincinnati Milling Machine Co.) ;ORNALL, Henry A. (MI) 4357 Ardmore Rd., S. Euclid Oeveland 21. Ohio (Allied Engr. Div., Ferro Corp.) :;OR5UCH, Charles A. (M) Ayers Mineral Co., 806 Market 5t. Zanesville, Ohio ;ORT, Walter A. (W) Twin Bay Village Boltol,! Landing, ~. Y. (Arnhold Ceramics, Inc,) :;055, Bruce R. .11 Hamilton St., Weedsport, N. Y, :;OIlONYI, George dur, Av. Mayo 981 os Aires, Argentina :; , Mrs. B, D. A. L. Curtis & Co" Westmoor Works London Rd. Chatteris, Cambs, England :;OUDGE, Monson F. (M) Mines Branch, 40 Lydia St. Ottawa, Ont., Canada (Dept. Mines & Technical Surveys) :'iOULD, Anita H. (GJ) 320 E. Eighth Ave.,.Tarentum, Pa. (Pittsburgh Plate Glass Co.) :;OULD, Robert E. (WFI) 86 Cook Rd., East Aurora, N. Y. (Buffalo China, Inc.) ;OWER, Irving W. (R) 516 W. Boulevard, Mexico, Mo. (Mexico Refractories Co.) GRABE, William F. (S) Grabe Brick Co. Box 5631, Tucson, Ariz. GRACE, Holt B. (5) Isenhour Brick & Tile Co. Bo," 1249, Salisburv, N. C. GRAFF, James B. (5) . Graff-Kittanning Clay Prods. Co. Worthington, Pa. GRAFF-KITTANNING CLAY PRODUCTS CO. (James B. Graff) Worthington, Pa. GRAFF. William A. (G) Glass Technology Lab. General Electric Co. 1133 E. 152nd St., Cleveland 10, Ohio 'GRAH.-\;'II. Harold A. (B) 4 9 W. ~lcKinley. Sunnyvale, Calif. lvania Electric Products, Inc.) M, Henry C. N. Erie St., Mayville, N. Y. GRAHAM, John Warren (R) 843 Cascade Rd., Cincinnati 40, Ohio (General Electric Co.) VOL. :~ti. :\'0. 10 (HI,")/) GRANT, John F. \RI) Box 262, Corning. N. Y. I Corning Glass \\'orks) GRA{.'ER. Oscar H. (G) Fi,cher & Porter Co., Hatboro, Pa. GRA\'ES, George _-\., Jr. Box i87, Alfred, N. 1. GRAY, Thomas J. (B) Box 814, Alfred, N. Y. (State University of 1\ew York, College of Ceramics) GRAY, W. Ashley, Jr. (X) Pioneer Silica Products Co. 3615 Oli"e St., St: Louis 8, Mo. GRAY, William T. (G) Leeds & Northrup Co. 4901 Stenton Ave., Philadelphia 44. Pa GREAT LAKES FOUNDRY SAND CO. (C. L. Cruikshank) i20 United Artists Bldg. Detroit 26, Mich. GREEN, A. P., FIRE BRICK CO. (William S. Lowe) 1018 E. Breckenridge St., ;'Ilexico. ~lo. GREEN, A. T. (F) British Ceramic Research Assn. Queen's Rd., Penkhull Stoke-on-Trent, England GREEK, Daniel K. Box 787, Alfred, N. Y. GREEN, D. T. (5) Milton Brick Co., Ltd., Box 554 Milton, Ont., Canada GREEN, Jobn R_ (MI) Minneapolis-Honeywell Reg. Co. Wayne & Windrim Aves. Philadelphia 44, Pa. GREEN, Robert L. (W) Lenox, Inc., Meade St. Trenton, N. J. GREEN, R. S. (BI) 18 S. Jefferson Rd., Mexico, Mo. (A. P. Green Fire Brick Co.) GREENE, Charles F. (5) Burns Brick Co., Macon, Ga. GREE1\E, Charles H. (GF) Box 804, Alfred, N. Y. (State University of New York, College of Ceramics) GREENE, J. F. (GF) 1043 New Pear, Vineland, N. J. (Kimble Glass Co.) GREENHOUSE, Harold M. (B) Aladdin Radio Industries Nashville 2, Tenn. GREENLEE, Charles A. (R) Basic, Inc. 845 Hanna Bldg.. Cleveland 15, Ohio GREENWOOD, Richard W. (W) General Electric Co. 1811 LeMoyne Ave., Syracuse, 1\. Y. GREGER. Herbert H. (W) Trans-Tech., Inc. Box 103, Rockville, Md. GREGO. Peter (G) 22 Roosevelt St., Corning, 1\. Y. (Corning Glass Works) GREGORIUS, J. S. (GFI) Pittsburgh Plate Glass Co. One Gateway Center, Pittsburgh 22, Pa. GRENIER, Lee (5) Magnet Cove Barium Corp., Box 832 Greybull, Wyo. GRESHAM, Lucius c., Jr. (5) Acme Brick Co .. Box 308 Waskom, Texas GRETHER, Charles M. (W) D. M. Steward ~lanufacturing Co. E. 36th St., Chattanooga, Tenn. GREWER. Douglas (M) Harn- \\'. Smith. Inc. 41 E.' 42nd St., Xe\\' York Ii, N. Y. GRIFFIN, Thomas W. "La Feuillee" Trelex Vaud, Switzerland (Hartford Empire Div., Emhart Mfg. Co.) GRIFFITH, J. Scott (R) 5524 \V. Adams St.. Chicago 44, Ill. (Armour Research Foundation) GRIFFITH. Lawrcncc 0 .. Jr. (GI 2514 Highland Ave., Sedalia, ~10. (Pitt,burgh-Corning Corp.) GRIFFITHS, ;":orman 1\onporite Pty. Ltd. 292-296 Burwood Rd. Hawthorn E 2. Victoria, Australia (; R Il;C. ,\rthur I R I Box h06. Canon Cit),. Colo. (Freeman Fire Brick Co.l GRIGG, Paul E. (EI) 338 ;..:. Dover Ave., La Grange Park. III, (Association of American Railroads) GRIM, Ralph E. (X) Dept. of Geology, l'niv. of Illinois Urbana, Ill. GROBB. F. S. (R) G. F, Sterne & Sons, Ltd. 126 Bruce St.. Brantford, Ont., Canada GROO~IE. Garland L. (R) 931 TeffreY St .. Baltimore 25, ~Id. (Ha;bison:\\'alker Refractories Co.) I~RO~S. Harold 1. (:'1) Santa Anita Potteries 3117 San Fernando Rd. Los Angeles 65, Calif. GROTH,US. Joseph V. (R) 2552 E. 76th St., Chicago 49, IlL (John Mohr & Sons) GROVE, Rohert L. (WI) 26 Rockland St. South Dartmouth, Mass. (Come1I-Dubilier Elec. Corp.) GRUNER, Max N. (R) Harbison-Walker Refractories Co. 1325 Ambassador Bldg., St. Louis 1, Mo. GRUVER, Robert M. (G) 1160 Oneida St., State College, Pa. (Linden Labs., Inc.) GSCHWIND, Jean F. (M) J. 0. Ross Engineering Corp. 44 Madison Ave., !\ew York 22. N. Y. GUERCI, Carl F. (W) 1444 Westgate Dr., Bethlehem, Pa. (International Business ~Iachines) GUGELER, Albert L. (EJ) 3897 W. 33rd St., Cleveland 9, Ohio (Ferro Corp.) GUIMARAES, Helio Pentagna Caixa Postal 208 Belo Horizonte-;'IIG, Brazil (Magnesita S. A.) GULDEN, Jules R. (D) Syracuse China Co., Syracu,e 1, N. Y. GULICK, Chester (M) Kentucky-Tennessee Clay Co., Inc. Mayfield, Ky. GUNTHER, F. W. (5) 849 Baker Ave., N. W. New Philadelphia, Ohio (Universal Sewer Pipe Corp.) GUNZENHAUSER, Adolph (M) 69-70 113th St. Forest Hills 75, L. 1., N. Y. (Transisola, Inc.) Gl'PTA, Subodh C. (G) Box 101, Port Jervis, N. Y. (Gillinder Bros., Inc.) GURR, Wilhelm Porzellan-Manufaktur W. Haldenwanger Berlin-Spandau Heerstr. 221, Westsektor, Germany GUSTAFSON, Carl H., Jr. (R) 47 Montana Dr., Holden, Mass. (Norton Co.) GUTHRIE, George B. (W) 642 Louisiana Ave., Chester, W. Va. (Hall China Co.) GUZMAN, Hector (G) 2944 Kendale Ave., Apt. 103 Toledo, Ohio (Owens- Illinois) G\\,Y;":. James D. (G) Lihbey-Owen.-Ford Glass Co. liOI E. Broadway', Toledo 5, Ohio GY\\,E. ~lg Lu Box 216. Alfred. N. Y. - -RllSTER 4:; I. .J. H \CK, Walter L. (W) \Vestern Gold & Platinum Co. 525 Harbor Blvd., Belmont, Calif. \CKETT, James W. (G) 3614 Kenwood Blvd., Toledo 6, Ohio ns-lllinOiS) \ R, W. C. (Bl) Carolina State College Dept. of Mineral Industries Raleigh, N. C. ADLEY, Robert L. (E) General Electric Co. Major Appliance Di,., AP 5, Rm. 249 Appliance Pk., Louisville I, Ky. AECKER, Arthur J., Jr. (R) 1793 Sharon Dr., Concord, Calif. (Gladding, McBean & Co.) AEGER POTTERIES, INC. (Joseph F. Estes) 7 Maiden Lane Dundee, Ill. .AERTLI:'\'G, Gene H. (WJI) 1016 16th St.. Rockford, Ill. (Ipsen Ceramics. Inc.) IAFNER, Harold C. (G) Bausch & Lomb Optical Co. Chemical Research Lab. Rochester 2, t\. y. IAFNER, Robert H., Jr. (E) 175 N. Linden Rd., Mansfield, Ohio (Ingersoll-Humphryes Div., Borg Warner Corp.) lAGAN, M. A. (MI) 5410 Sycamore St. . Kansas City 29, Mo. . (Westinghouse Electric Corp.) tiAGAR, Donald (MFI) . Box 328, Zanesville, Ohio (Donald Hagar Ceramic Materials) HAGBERG, Carl E. (M) . Kentucky-Tennessee Clay Co., Inc. . Box 894, Mt. Union Sta. Alliance, Ohio HAGEDORN, A. J. E. (R) l eral Abrasive Co., Inc. wer D, Bridge Sta. gara Falls, N. Y. HA DORN, E. C. (G) Owens-Illinois, Technical Center 1700 ~. Westw:>od. Toledo 7, Ohio HAGENAUER, Carl J. (G) R.R. I, Sarver, Pa. (Pittsburgh Plate Glass Co.) HAGGLUND, Erik (M) Kanthal Corp., Amelia PI. Stamford, Conn. HAGLER, J. c., Jr. (S) GeorgiaCarolina Brick & Tile Co. 10 Camphell Bldg., Augusta, Ga. HAGNER. Fred F. (G) Phoenix Glass Co. Monaca, Pa. HAGY, Henry E. (G) Cominll' Glass Works Laboratory Cominll'. N. Y. HAHN, William P. (G) 80 Norwood Ave. North Plainfield, N. J. (Johns-Manville Corp.) HAHNER, Clarence H. (GF) National Bureau of Standards Washington 25, D. C. HALDEX. Frank A. (B) 1049 Valley Forge Dr. SunnY\'ale, Calif. (Stanford Research Institute) HALDY, r-:orman 1.. (W) American Encaustic Tiling Co. 1000 Cannon Ave., Lansdale, Pa. HALEY. Dwight (R) American Clay Forming Co. Box 6Ro, Tyler, Texas HALL, Charles A. R. 3. Bloomington, Ill. CHINA CO. (John T. Hall) ast Lh'erpool, Ohio HALL, Donald H. (EJ) Pfaudler Co. 1000 We_t :\,eoo Rochester 3. X. Y. VOL. 3u, ~o. 10 (1!);j'i) HALL, Douglas E. 2840 :'\'. Calvert St., Baltimore 18, :\ld. HALL, E. B. ;\I/S Bird & Co. Ltd.. Research Dept. Cbartered Bank Bldgs. Calcutta, India HALL, Everson (W) Park Way Ext., East Liverpool, Ohio (Hall China Co.) HALL, F. P. (WF) Onondaga Poltery Co.. Electronic Di\'. Syracuse 1. X. Y. HALL. James 1.. (W) 242 Oregon Ave., Palo :\Ito, Calif. (Thermo ~laterials Inc.) HALL, John T. (W) Hall China Co., East Liverpool, Ohi" HALL, ~lorris P. (S) Alton Brick Co., Box 2~ ~laryland Heights, :\1". I1.\ LL. R,)bert 1.. 12-.4- Jer:,ey L3ne. C!l:lH.;.nll, ~. C . H.\LL. Warren A. (SI ~ orth State P)"TOph~lIite Co .. Inc. Box i 2~i. Greensboro. :'\'. C. HALLBERG, Richard C. (W) 236 \\'at-on A,e., Fostoria, Ohio (Electric Auto- Lite Co., Spark Plug Di,.) HALLER. P~rcy 319 Carterknowle Rd . Sheffi~ld II, England (John G. Stein & Co., Ltd.) HALLER. Wolfgang K. (B) Inst. of Silicate Research University of Toledo, Toledo 6, Ohio H.\LLETT, Crawford W. (RI) Shenanl!'ll China. Inc. Box L?O, !'\ew Castle, Pa. HALLOIN, William G. (G) 1218 Broadview Blvd. Brackenridge, Pa. (Pittsburgh Plate Glass Co.) H.\LLSE. Robert L. (BJ) U"nh'ersity of Illinois Dept. of Ceramic Engineering t'rbana. Ill. HALM, Louise Union Francaise des Produits Refractaires, 15, Rue de Milan Paris ge, France HALVOXIK, Frank V. (G) Box 2, l\'ewry, Pa. (D. :\1. Bare Co.,.) H.\~I.\KER. ~1. L. (Rl Columbia Fire Brick Co. 612 First Xational Bank Bldg. Canton 2. Ohio HAMER. Donald (W) 426 Elmwood. Evanston, 111. (Radio Kemetal Industries) HAMILTOX. Edgar H. (GI) Xational Bureau of Standards Glass Section, Washington 25. D. C. HAMILTON, Howard G. 251 Tenth St. N. \\'., Apt. 104 Atlanta, Ga. HAMILTO:\'. J. C. 1(;) 3422 Chestnut Hill Rd., T"ledo 6, Ohio (Owens- Illinois) HAMILTO:>1. Xoble E. (M) 53 Benjamin Rrl" Belmont 78, Mass. I Consultant) HAMILTO~, Robert (M) t'nited States Gypsum Co. 300 W. Adams St., Chicago 6, Ill. HAMILTON, W. M. (E) Cran~ Co., Chattanooga Div. 33rd and Alton Park Blvd. Chattanooga I, Tenn. HA~lME, Donald G. (B) National Gypsum Co., R~search Center 1650 Military Rd., Buffalo 17, N. Y. HAMMER, Averill J. (S) 136 Buttonwood Ave. Bowling Green, Ohio (BowlinI!' "reen State University) H.\:\DIER. Gunter 246. Connell's Pt. Rd. South Hurstville. :'\'. S. W., Australia I :\le-srs. R. Fowler Ltd.) HA~IMER, R. (1) Box 5212, Haifa. Israel I Palceramic Ltd.) H.Ul~IOl\D, Beatrice L. (R) Technical Research Group Ii rnion Square. \Y. :'\'ew York 3, l\. Y. HAMMOND LEAD PRODUCTS, INC. (William P. Wilke, III) 5231 Hohman Ave., Box 912 Hammond, Ind. H.UIPEL. Richard J. (\VJ) ii 4 Dalla> A,e. ~an Bernardino. Calif. I Crane-Pacific Co.) HANCOCK BRICK & TILE CO. (James 1.. Child, Jr.) Box 450 Findlay, Ohio HA:'\'D. Thomas (R) Corhart Refractories Co. 1600 W. Lee St., Louisville 10, Ky. H:\:'\'DEX, Jack (B.!) 20 Elmora A\'Coo Elizabeth. :>1. J. (Radio Cor:>. of America) HANDWERK. Jos~ph H. (B) 915 N. Prairie Ave., Joliet, Ill. (Argonne National Laboratory) HA:'\'KIX5. William E., Jr. (S) Dalton Brick & Tile Corp. Box 223, Dalton, Ga. HAXKS, Charles F., Jr. (M) Kentucky-Tennessee Clay Co., Inc. Box 894, Mt. Union Sta. Alliance, Ohio HANLEY CO. (John M. Dickey, Jr.) Summervill~, Pa. HA!'\:'\'. Douglas G. Ryton Hou~~ Shifnal, Shropshire, England (British Heat Resisting Glass Co.) HA:,\,XA, H. H. (GI) 303 Bailey Rd. Crystal City, Mo. (Pittsburgh Plate Glass Co.) HANNA, Ralph E. (WI) Square D Co. Molded Insulation Div. Peru, Ind. HANNA, Richard (Wn Hartford, N. Y. (General Electric Co.) HA;-';XEMAX, Morton E. (G) Elmore, Ohio (Woodville Lime Products Co.) HANNON, Richard C. (MI) 1208 Franklin Rd., Salem, Ohio (R. T. Vanderbilt Co., Inc.) HANOVIA CHEMICAL & MFG. CO. (R. T. Hopper) One W. Central Ave. East Newark. :'\'. J. HANSARD, W. Car~y (WI) 2345 Cheshir~ Bridge Rd., N. E. Atlanta, Ga. (Georgia Institute of Technology) HANSELL, U. G. (W) Honeywell Re!'earch Center 500 Washington Ave., S. Hopkins, Minn. HANSEN, 1. A. (W) Fords Porcelain Works Perth AmboY, N. ]. HANSEN, ]. E. IEFI) Ferro Corp., 5309 S. Dist ..i,t 131\"(\ Los Angeles 22, Calif. HANSEN, John H. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5. Ohio HANSEN, Kenneth H. (M) 507 Edg~wood Ave., Columbia, Mo. (Consolidat~d Feldspar Dept., International Minerals & Cbemical Corp.) HA~SEt\, Kent W. 165 E. Second, S., Bountiful. Utah HA:-\SEX, ~Ieh'in O. (G) Owens-Illinois. Libbey Div. Box QIQ. Toled" I, Ohio .: , .; I !. , Ji&i La \XSEX, Waldemar C. (R) l'niversal Atlas Cement Co. Gary (Buffington Station), Ind. \:--;SO:\" Hans R. (R) 30004 W. Ten Mile Rd. Farmington, R.R., Mich. (Hanson Co.) \XliXS, James W. (5) al Wells Clay Products, Inc. dgehill Rd., Fort Worth, Texas \ T, Carl J. (W) Harshaw Chemical Co., 1945 E. 97th St. Cleveland 6, Ohio \RBIX, Hugh P. 134 Jersey Ln., Clemson, S. C. ARBISON-WALKER REFRACTORIES CO. (e. A. Brashares) 1800 Farmers Bank Bldg. Pittsburgh 22, Pa. .'.RCOCRT, Edward L. (~I) North American Mfg. Co. 3810 \Vest St., Cincinnati 27, Ohio ARDER. Charles M. (OF) State l'niversity of Kew York College of Ceramics, Alfred, N. Y. ARDlXG, John Roy "Greystoke," Chesworth Close Horsham, Sussex, England (Sussex & Dorking United Brick Co., Ltd.) ARDINGE CO., INC. (Harlowe Hardinge) York, Pa. ARDINGE, Harlowe (M) Hardinge Co., Inc., York, Pa. ARDY, Ronald G. (SI) .' Onondaga Brick Corp., Warners, N. Y. ARES, George B. (G) 15 Roosevelt St., Corning, N. Y. (Coming Glass Works) ARGREAVES, John 33 Ellers Ave. Bessacarr, Doncaster, England (United Steel Co., Ltd.) ARGREAVES MILL LTD. V. Cook) Botteslow St. _ y, Stoke-on-Trent, England No POTTERY CO. obert E. Boyce) East Liverpool, Ohio ARMAN, e. G. (WF) Horizons, Inc., 2891 E. 79th St. Cleveland 4, Ohio ARMONY, M. E. (G) Silicones Div., Union Carbide Corp. 644 Oliver Bldg., Mellon Square Pittsburgh 22, Pa. .ARNISH. John D., Jr. (WI) Westinghouse Electric' Corp. Derry, Pa. ARNISH, Mark E. (R) 2111 Sierra Rd. PI)'mouth MeetinR:, Pa. (E. J. Lavino & Co.) :ARPER, J. Fletcher (W) Globe-Union Inc., 900 E. Keefe Ave Milwaukee I, Wisc. :ARPER, Roderick L. (M) Harper Electric Furnace Corp. 39 River St., Buffalo 2, N. Y. :ARPER, Wallace T. (B) Box 526. Acworth, Ga. (Lockheed Aircraft Corp.) ~ARR. W. J. (GI) 1711 Brainard Rd. Lyndhurst. Cleveland 24. Ohio (Harshalv Chemical Co.) :ARRELL, George O. (5) Korth Carolina State College Mineral Industries Dept. Raleigh. K. e. 'ARRIXGTON, Roy V. (GJ One Oakwood Dr., Corning, N. Y. ~ning Glass Works) I CLAY CO. oop W. Enloe, Jr.) pruce Pine, N. e. 'ARRIS. Donald M. Fairport Rd., East Rochester, N. Y. HAkRIS, Henry M. (R) 4114 42nd 5., Seattle 18, Wash. (C. S. Bureau of Mines) HARRIS, James E. (5) 4685 S. Sherman, Denver, Colo. (Robinson Brick & Tile Co.) H:\RRIS. Jesse R. 301 E. Third A,e .. Ritzville, \\'ash. HARRIS. Joe X. (EJ) 1175 Fayetteville Rd., S. E. .\tlanta 16. Ga. t Georgia Institute of Technology) H.\RRIS, Ransom S., Sr. (GJI) 124 Brooks Ave .. Raleigh, X. C. (l. S. :\rmy) H:\RRISOX. Don E. (B) 1500S X dacrest Rd., Apt. a Cle"eland 12, Ohio I General Electric Co.) H.\RRISOX, e.Har~ld (W) 4545 Xorwin Rd .. Pittsburgh 36. Pa. (\\'estinghouse Electric Corp.) H.\RRISOX. Jack L. (5) Indiana Geological Survey Indiana t:ni\'ersity, Bloomington. Ind. HARRISOX. William B. (BI) 2635 X. 68th St., Wauwatosa 13, Wisc. (Allis-Chalmers Mfg. Co.) HARRISON, W. N. (EF) National Bureau of Standards Ind. Bldg., Enameled Metals Sect. Conn. Ave. & Van Ness St., N. W. Washington 25, D. C. HARSHAW CHEMICAL CO. (Carl Harbert) 1945 E. 97th St., Cleveland 6, Ohio HART, John M. (M) New Jersey Porcelain Co., Box 908 Trenton 5, N. ]. HART, Leroy D. (R) 707 Crompton Court Webster Groves 19, Mo. (Aluminum Co. of America) HART, Wade ]. (GI) 908 Lafayette Court, Marion, Ind. (Radio Corp. of America) HARTFORD, Thomas J. (W) 2783 Doresta Rd., San Marino, Calif. (Gladding, McBean & Co.) HARTLEY, Alva G. H. Downing & Co. Ltd. Brampton Hill Newcastle, Staffs, England HARTMAN, F. Henry (G) Stouffville, Ont., Canada (Crystal Glass & Plastics Ltd.) HARTSHORN, T. D. (EI) A. J. Lindemann & Hoverson Co. 601 W. Cleveland Ave. Milwaukee IS, Wise. HARTWIG, Frederick J., Jr. (RI) Babcock & Wilcox Co., Box 835 Alliance, Ohio HARVEY, A. M., Jr. (5) Roanoke-Webster Brick Co., Box 780 Roanoke 5, Va. HARVEY, Edwin T. (R) 314 W. McPike St., Vandalia, Mo. (Harbison-Walker Refractories Co.) HARVEY, E. M. (R) Korth State Pyrophyllite Co., Inc. Box 7247, Greensboro, X. C. HARVEY, Malcolm R 80 E. Center St., Kaysville, Utah HASKO, Stephen (WT) 1510 Wheaton Lane, Silver Spring, Md. (National Bureau of Standards) HASSELBACH, William (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio HASSETT, \\'iIliam A. (W) Radio Corp. of America Chemical & Physical Lab. 415 S. Fifth St., Harrison, N. J. HASTIKGS, Russell A. (M) Lindberg Industrial Corp. 2321 \Y. Hubbard St., Chicago 12, Ill. HATCH, Robert A. (B) 4135 X. Belleview Ave. St. Paul 10, ~linn. plinnesota ~[ining & ~lfg. Co.) HATHAWAY, A. J. (RJ 8721 Pershing Ave. Niagara Falls, :\'. Y. (Titanium Alloy ~Hg. Di,., National Lead Co.) HATHAWAY, Isaac S. (W) 1318 Tuttle Ave., ~[ontgomery, Ala. (Alabama State College) HATHAWAY, ~lrs C. G. (W) Alabama State College Montgomery, Ala. H:\l'BEI);, \\'endell L. (RJ) 300-A ~Ionterey, China Lake, Calif. CC'. S. Xaval Ordnance Test Sta.) HAUCK. Charles A. (RI) 8838 Swinton A"e" Sepuh'eda, Calif. (Marquardt Aircraft Co.) H.\lR.\. Bruce 223 Tom Hunter Rd., Fort Lee, N. J. HAUSER, Richard E. (I) 351 Moselle St., Buffalo 11, N. Y. HAUSLER, Elwood B. Box 787, Alfred, N. Y. HAUTH, Willard E., Jr. (B) 409 Warminster, Hatboro, Pa. (International Resistance Co.) HAVEKOTTE, Walter L. (R) Firth Sterling, Inc. Demmler Rd., :-'lcKeesport, Pa. HAVELL, Richard F. (R) 846 N. Euclid Ave., Oak Park, Ill. (Eagle Grinding Wheel Co.) HAVENS, Irvin F. (B) 200 St. Nicholas Ave. Worcester, ~lass. (Bay State Abrasive Products Co.) HAWES, Samuel A. (5) 301 N. E. Sixth Ave. Mineral Wells, Texas (Texeramics Co.) HAWK, Elwin A. (M) Hawk Laboratories, Inc., RR. 1 East Rochester, Ohio HAWKINS, Robert J. (SI) 20 Sunnyside Pl., Hamburg, N. Y. (Buffalo Brick Corp.) HAWKS, Ralph L. (WI) 525 W. Maxwell, Lakeland, Fla. (Florida Tile Industries, Inc.) HAWKS, William L. (R) 1914 No E. 47th Ave., Portland 13, Ore. (Collett Bros., Inc.) HAWS REFRACTORIES CO, (E. E. Slick, Jr.) 407 Main St, Johnstown, Pa. HAY, John (B) Norton Co., Research Lab. \""orcester 6, Mass. HAY, Joseph L. (R) Acme Brick Co., Box 448 Malvern, Ark. HAYDON, Mary P. (B) 106 Ogontz Lane, Oak Ridge, Tenn. (Oak Ridge National Laboratory) HAZEL, John J. (RF) Republic Bldg., Rm. 1526 Republic Steel Corp., Cleveland I, Ohio HAZEN, E. ]. (GI) R.R. 2, Ford City, Pa. (Pittsburgh Plate Glass Co.) HEALY, James H. (E) 4511 N. Sherman Blvd. Milwaukee 9, Wisc. (A. O. Smith Corp.) H EATH, Donald L. (B) Ohio Brass Co .. Park & Ninth Barberton, Ohio HEATLEY, Sidney M. (R) Babcock & Wilcox Co. lOS S. laSalle St., Chicago 3, Ill. HEAVILL, John C. (E) 42 Walnut St., Pittsburgh 5, Pa. (Vitro Manufacturing Co.) HECK, Frank G. (R) E. J. Lavino & Co" 3 Penn Center Plaza Philadelphia 2, Pa. ROSTER 47 I, I , I .-JIIt :LL. James V. (RI) '3 Decatur St., China Lake, Calif. S. J\aval Ordnance Test Sta.) ::\, Walter A. (R) telle Memorial Institute naKinll Ave., Columbus 1, Ohio :.:, Lee M. (R) :. 4, .('~dar Grove Rd. :~ N. J. .\i11e Corp.) t., IP E. " 122 ...\!fred. :\. Y. PETH, James A. (5) rden Brick & Tile Co., Bo.x 177 I ,rham, N. C. l'IST, Alfred J. (W) 'artado Postal 525 ,adalajara, Jalisco, Mexico .elza Fina S. A.) \'ER. John C. (RI) .\ I F"rlt~, St. ,rth Tona'Lmda. :\. Y arhorundunl Cll.1 1, Franz jrcher Ziegeleien, Postfach ,l57 'j rich I. Switzcrland TMAl'>, Clarence F. (G) ational Lime & Stone Co. ir~ National Bank Bldg. indlay, Ohio .ICH. Raymond P. (5) 55 Stelzer Rd. ox 214. Columbus 19, Ohio Claycraft Co.) .IGMAN, H. A. (RFI) ::. J. Lavino & Co., Box 29 ~orristown, Pa. .I50ETH, Werner M. ;arbenfabriken Bayer \ktiengesellschaft .22c) Leverkusen-Bayerwerk, Germany 'lDL, Raymond A. (RF) ~917 43rd St., N. W. Washington 16, D. C. ~E, H. W. (5) Hudson Supply & Equipment Co. 7 nsylvania Ave., N. W. on 6, D. C. S N, Fred E. (W) 106 S. Adams St., Fostoria, Ohio (Electric Auto-Lite Co.) LER, Enrique % Cerro de Pasco Corp. La Oroya, Peru .LIESEN, Richard O. (E1) Pemco Corp., 5601 Eastern Ave. Baltimore 24, Md. LLMAX. X., III (W) B. G. Corp. 321 Broad Ave., Ridgefield, N. J. LM, David F. (B) Mel10n Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. LMKAMPF, R. N. (R) Oswald Refractories Co. 1617 S. Brentwood Blvd. St. Louis 17, Mo. :LSER. Perry D. (WFl) 110 ~lar)'land Ave., N. E .. Apt. 211 Washington 2, D. C. (C. S. Dept. of the Interior) :LZ, Armin W. (B) 20 Maryland Ave., Gaithersburg, Md. (U. S. Geological Survey) :MBERG. Per Surte Glasswork, Surte, Sweden ::-'IPHILL. R. W .. JT. (W) Colonial Insulator Co. 945 Grant St., Akron 11. Ohio :':~ISTEGER. Samuel E. (EI) 4155 Audubon Rd., Detroit 24. :-'Iich. (Consulting Engineer) EXDERSON, Frank P. (M) 512 :-'Iockingbird Ln., Tyler. Texas 0 Corp . Allied Engr. Div.) E SON, Frederick C. (WFTl China. Inc . Sebring, Ohio EXDERSON. James L., Jr. (M\ Robinson Ventilating Co. Zelienople, Pa. OL. ;1(i, ~O. 10 (1957) IIE:\DERSO:\, William W. (M) l<.obinson Ventilating Co . Box 217 Zelienople. Pa. llEXDREN, Robert R. (RI) 105 Bank Ave., Riverton, N. J. (Hoega~aes Sponge Iron Corp.) IIE:\DRYX, Dwight B. (S) Dwight B. Hendryx & Assoe,iates 6621 Darlington Rd . Pittsburgh 17, Pa. IlE:-":KEL, Carl F., JT. (G) Corning Glass \\'orks, Corning, :-..:. Y. HE:-":RY, Edward C. (BFI) 7,10 Crawford Ave., Syracuse 10, :\. Y. (General Electric Co.) HE\,RY, Fran],; R. (RF) . Simonds Worden White Co. I 101 :-..: egley PI., Dayton 7, Ohio HE:-": R \'. Geor~6 l"nlcltl dt'~ Yerreries ~Iecaniqlle:" Belge_. 2". Ul1a; de Brabant l'hader"i. Hai""ut. Belgium HE:'\R\'. Kt'11l1eth ~1. (GFI l-h\ t"Il:-ol1linni=-- B"x lu.IS. Tole,lo 1. Ohio llE:\SLER, J. R. (G) Chemical Research Lab. Rausch & Lomb Optical Co. Rochester 2. :-<, Y. IIEKSON, Charles W. (R) Korton Co .. Worcester 6, Mass. HENWOOD. Reginald J. (R) 9444 Lynnhaven Rd. Cle,'eland 30, Ohio (Republic Steel Corp.) w.IlEPPLEWHITE, J. (WFI) 13557 Cedar Rd., Cleveland 18, Ohio (Ferro Corp.) HERBERT, John S. (S) W. G. Rush & Co., 174 Third Ave., N. Nash"i!1e 3. Tenn. HERBERT. John W. (R) 3523 Anderson Pky., Toledo. Ohio (Lihbey-Owens-Ford Glass Co.) HERBERT, Paul R. (W) Sandyville, Ohio (StyIon Corp.) HERBST. Richard J. 1619 Glenwood A,e.. Joliet. Ill. HERGER. Howard C. (G) Pierce Gla.. Co .. Port Allegany. Pa HERKO. Edward (GI) 392 Magee Ave .. Rochester 13. K. Y. (Bausch & Lomb Optical Co.) HER:-'I:\XX. Gunter Rua Xacaia 51 (V. Mariana) Sao Paulo. Brazil (Wbeaton do Brasil S. A.) HERMANN. James L. (W) 3288 Earlmar Dr. Lns AnR'eles 64, Calif. (Redondo Tile Co.) HEROLD, Paul G. (BFlI Radio Corp. of America Chemical & Physical Lab. Lancaster. Pat HERRI"G. Leon B. 25.1 "0" St.. Clemson, S. C. HERRON. Robert H. (R) 54310 Ironwood, South Bend 15, Ind. I Bendix Products Div.) HESS. Albert J. (B) ~I ilwhite Co .. Inc. Box 23R. Bryant. Ark. HESS. B. Parker (G) Westinghouse Electric Corp. 700 Braddock Ave., East Pittsburgh, Pa. HESS. F. B. (G) Brockway Glass Co., Inc. Brockway, Pa. HESS. Robert L. (R) 44 Hess Blvd. Lancaster, Pa. I Armstrnng Cork Co.) HESSI:\GER. Philip S. (BIl :-'Iycalex Corp. of America Clifton Blvd., Clifton, N. J. HEUER, Russell P. (RF) General Ref ractories Co. 1520 Locust St.. Philadelphia 2, Pa. HEWITT, L. C. (RFl) Ironton Fire Brick Co., Ironton, Ohio Ill::\\L.ETT, James 'lltomas l,c,) Ingram-Richardson, Inc. Frankiort, Iud. HICKEY. Frank J. (Gl Corning Glass Wurb Box 544, Corning. :'\. Y. Ii ICKS, James C. (BI) 27550 Edgerton Rd., Los ,\110', Calif. I Kaiser Aluminum & Chemi"aI Corp.) HICKS. John F. G. (G) 131 Thompson Dr., Painted l'u,t, :\. Y. (Corning Glass Works) HIGG1:\S, Ray (W) 191 Overlook Ave., Wadsworth, Ohio (Ohio Brass Co.) HIGGI:\S, Waldo W. (EFIl .\. O. Smith Corp. Box 584. :-'Iilwaukee I, Wise. II IGGS, Harold P. I B) ,\utomatic :-'Ianufacturing Co. riS Gouverneur St., :-":ewark 4. :\. J . 1l1l;IILEY, Robert W. (R) Richard C. Remmey Son Co. 2~82 \\'. L.iherty Ave. Pittsbllfgb Iii, Pa. HIGMAN, JOHN W., CO. I Robert J. Stone) 24 State St. :\ ew \' ork 4, N. Y. HII.DEBRA:\D, David (W) R.R. 3, Hixson. Tenn. L\merican Lava Corp.) II 1LL. David C. ~q Henry St .. Cambridge, :-'1 a". HILL. Erceli C. (SF) 109 Morton Ave., Apt. 5 Ridley Park, Pa. HILL, John R. (5) 806 Scenic Dr., Charleston, \\'. Va. (Charleston Clay Products Co.) HILL. Lawrence 1. (G) 503 Carver B\,d. To~e:lo 7. Ohio \ Libbey-Owens-Fonl \;Iass Co.) HI"CKLEY, Arthur T. (Rl Hooker ElectrochemiC'lI Co. Buffalo Ave. & 47th St. :\ iagara Falls, 1\. Y. HI:>:D, Stanley "The Mount," Etruria Rd. Basford. Stokeon-Trent, England (Consulting Engineer) HI:\DS. J. F. (G) Canadian General Electric Co. 2.:?1 Dllfferin St. Toronto 3, Ont., Canada HI"ES, Robert A. (B) 8729 Radley Ct., Brentwood 17, Mo. (Missouri Portland Cement Co.) HI!\KINS, E. A. (G) Tygart Valley Glass Co., Box 503 Washington, Pa. HIRSSIG, Carl F. (G) 1210 Fort St., Maumee, Ohio (National Lime & Stone Co.) HISCOCK, Harley J. (R) Fuller Merriam Co., Box 69 \Vest Haven, Conn. HITCHI:\S, R. A. (R l :\ational Refractur:e., Di\'. Mexico Refractories Co. 226 S. 16th St.. Philadelphia 2. I'a. HITZEMAN, Roger L. (WI) Globe-Union Inc., 900 E. Keefe Ave. Milwaukee 1, Wisc. IIO.\(~L.\"D. Peter J. 3 \\'est St., Xunda, X. Y. HOBSON, Joe P. (5) Acme Brick Co., Box 415 Fort Worth 2, Texas 110CH, Michael (B) Cniversity of Cincinnati Dept. Chern. & Met. Engr. Cincinnati 21. Ohio HOCK.-\D.\Y. R. B. (S) (;ent'ral Shale Products Corp . Kin"',port, Tenn. HODGDOX. Frank B. (B) Box 4132. N. Chattanooga Sla. Chattanooga 5, Tenn. l Tennessee Products & Chemical Corp.) ROSTER 49 j '; I I I, ----------sllllltSZ.....a.a.sll ZIZ. . . . .  i I I I I HODGES, Leslie R., Jr. Box 1409, Atlanta, Ga. HODSO~, George ~. The Hall, '\'ymeswold _ Nr. Loughborough, England (Hathernware, Ltd.) HODSON, Jean T. 4203 Brooklyn, Seattle 5, '\'ash. HOELSCHER, Max W. (E) 5010 Mayfield Rd., Lyndhurst 24, Ohio (Enamel Products Corp.) HOENIG, Clarence L. (RJ) 4325 Lawn Ave., Western Springs, Ill. (Argonne National Lab.) HOEY, Paul E. (S) Texas Vitrified Pipe Co. Box 117, Mineral Wells, Texas HOFFMAK, Richard C. J4784 :\uburndale, Livonia. ~Iich. HOFFMAN, Sidney C. (G) 1646 Lindy Lane, Lexington, Ky. (Sylvania Electric Products, Inc.) HOFFMAN, Willard H. J. (W) 8 Dungarrie Rd., Baltimore 28, Md. (Clinchfield Sand & Feldspar Corp.) HOFFNER, Jere R. (G) T. C. Wheaton Co., Millville, N. J. HOFSTETTER, G. W. (E) Ferro Corp., 336-338 N. Central Ave. Chicago 44, Ill. HOGAN, Thomas W. (W) Flintridge China Co. 350-380 S. Raymond Ave. Pasadena I, Calif. HOGARTH, William, Jr. Box 3829, Georgia Tech., Atlanta, Ga. HOGENDOBLER, H. R. (G) Gustin-Bacon Manufacturing Co. 3031 Fiberglas Rd., Kansas City, Kans. HOGENSON, William (E) Chicage Vitreous Corp. 1425 S. 55th Court, Cicero 50, Ill. HOHMANN, Frederick R. (G) 1012 Parkview Ave. New Kensington, Pa. (Pittsburgh Plate Glass Co.) HOHX, Carl M. (W) 508 Eastway Dr., Lakeland, Fla. (Florida Tile Industries, Inc.) HOJALATA y LAMINA, S. A. (G('ronimo Ramirez E.) Apartado Postal 996 Monterrey, N. L., Mexico HOLADY, Harold W. Box 416, Ephrata, Wash. HOLDE~, Abe N. (B) General Electric Co. Vallecitos Atomic Lab. Box 846, Pleasanton, Calif. HOLDEN, Rohert B. (B) Sylvania-Corning Xuclear Corp. Bayside, N. Y. HOLDEl\"ER, Irwin K. (R) 5389 Bayside Dr., Dayton 3, Ohio (Wright-Patterson AFB) HOLL, Barton A. (S) Logan Clay Products Co. Box 698, Logan. Ohio HOLL, Barton S. (SI) 311 W. Front St., Logan, Ohio (Logan Clay Products Co.) HOLLEY, Kenneth E. (R) 113 Pritchard Ave., Corning, N. Y. (Corning Glass Works) HODIES, Gr('gory J. (En 325 Lansm('re Rd. Shak('r Heights 22, Ohio (Ferro Corp.) HOLMES, Lyle A. (M) 82 Pilgrim Rd., Rosslyn Farms Carnegie, Pa. (Great Lakes Foundry Sand Co.) HOLMES, Roland G. (S) W. S. Dickey Clay Mfg. Co., Box 402 Pittsburg, Kans. HODIQeIST, Stig B. (R) United States Steel Corp. Research Center, ~Ionroeville, Pa. 50 ROSTER HOUISTROM, Joseph H. eRl) 11211 Washburn Ave., S. Bloomington 20, Minn. (General Ref ractories Co.) HOLSCHER, H. H. (GF) Owens-III inais Box 1035, Toledo 1, Ohio HOLST, Tage Vinkelvej 10, Kongens Lyngby, Denmark (Porcelaensfabriken Danmark A/S) HOLT. T. Birch 1535 Sigma #10 Salt Lake City, Utah , HOLTERHOFF, A. Gray (M) National Sales Corp. 307 E. Fourth St., Cincinnati 2, Ohio HOLTRY. Byron C. (S) Henrt('rson Clay Products Hend('r;;on, Texas HOL\\,XY, Paul A. Box i87, Alfred, N. Y. HOLZMAN, George R. (G) Mellon Institute, 4400 Fifth Ave Pittsburgh 13, Pa. HOMMEL, E. M. (EF) O. Hommel Co., Box 475 Pittsburgh 30. Pa. HOMMEL, 0., CO. (E. M. Homm('1) Box 475, Pittsburgh 30, Pa HOM VELD, G. H. A. Calle Cantarrana, Quinta Tucuman Las Delicias, Maracay. Ven('zuela (Fabrica Nacional de Porcelana) HONSBERG. Wern('T IW) Fabrica de Loza EI Anfora. S..\. Apartado 508. Mexico D. P., :\Iexico HOOD, Clyde (G) Leeds & Northrup Co. 1922 E. 107th St, Cleveland 6, Ohio HOOD, Harrison P. (GF) 260 Delevan Ave.. Corning, N. Y. (Corning Glass Works) HOOD. L. Scott (MJI) Orton Ceramic Foundation 1445 Summit St.. Columbus. Ohio HOOD, Walter H. (M) International Minerals & Chemical Corp. (Canada) Ltd. 77 Metcalfe St., Ottawa. Ont., Canada HOOGE~DOORN, Helen M. (ETI) 2185 Cummington Rd .. :\pt. j Cleveland 6, Ohio (Ferro Corp.) HOOKER. James K. 66 Liberty St., Bolinr, ~. Y. HOOP, M. C. v. d, N. V. Royal Delft Ware Manufactory, "De Porceleyne Fles" v/h Joost Thooft & Labouchere 196 Rotterdamscbeweg, Delft, Holland HOOPER, Bradford (R) Babcock & Wilcox Co. Augu'ta, Ga. HOOTOX. Norris A. R. R. 2, Kew Carlisle, Ind. HOOVER, Charles H. (R) 609 Wilton Rd., Towson 4, M<1 (General Refractories Co) HOPKIKS, Robert W. (GI) Calumite Co., Box 151 Hamilton, Ohio HOPPER, R. T. (D) Hano\'ia Chemical & Mfg. Co. 1 W. Central Ave., East Newark, N. J. HORAK, "'illiam (RFI) 223 Raymond Rd. West Hartford 7, Conn. (Hartford Empire Div., Emhart Mfg. Co.) HOR~IBERG, R. E. (\\') ~Iisc('ramic Tile Box lOiO, Cleveland, ~Ii". HORKER, ~I. Harlan 475i lith N. E. St., Seattle 5, Wash. HORNI!\G, Roy A. (GFI) Armstrong Cork Co., Lancaster, Pa. HORNUKG, Martin R. (WI) 140 E. Sheridan Ave., New Castle, Pa (Shenango China, Inc.) HORTOX, Paul B. (WI) Insulator Dept., General El('clric Co. Box 57, Baltimore 3. ~Id. JI ( ) J{ TOX, J{ob('Tt .\. (J{ I 452 Fort Washington .\H. Xew York 33, X. '1, I Austenal, Inc.) .... HOSBEIK, Roger L. lR) . 202 12th St., N. '\'., Canton, Ohio (Republic Steel Corp.) HOSSENLOPP, Arthur :\1. (WI) 921 Maplewood Dr., Kokomo. Ind. (Delco Radio Div., General ~10tors Corp.) HOSTETTER, J. C. (GFJ) 1561 Dale AYe., Winter Park, Fla. (Consultant) HOUCHIKS, Henry R. (W) Carborundum Co. Niagara Falls, N. Y. HOl'DEK, .\Ibin (W) Bnx 395. Santa :\nna, Texas (Santa Anna Tile Co., Inc.) HOFDESHELL, Robert J. (~O 223 ,Yo South .\ St .. Gas City, Ind. (~larion Machine Foundry, Inc.) HOCGHTON, Amory (G) The Knoll, Corning, N. Y. (Corning Glass Works) HOULAHAN, R. C. (S) Builders Brick Co. 3800 Kinth Ave., S., Seattle 8, Wash. HOUSMAN, George S. (R) Box 17, Norristown, Pa. HOeSTON, Harr\' H. (B) Borg-Warner Corp. Algonquin & Wolf Rd. Des Plaines, IIi. HOl'STOK, M. Dean 1745 Skyline Dr., Apt. 56 Pittsburgh 27, Pa. HOLTZE, Armand L., Jr. (G) Houze Glass Corp.. Point ~farion, Pa. HOWARD, Elwin (B) Mal-E1 Ceramics 113 Oxford Rd.. Oxford. Conn. HOWARD, Harold B. (S) 828 S. Ellis St.. Salisbury, N. C. (Taylor Clay Products Co.) HOWAT, Walter L. (OF) Howat Kilns, 85 Hopping Ave. Staten Island i, N. Y. HOWATSON, John (G) University of Wyoming Chemistry Dept., Laramie, Wyo. HOWATT, Glenn (W) 11 Cliffwood Place, Metuchen, N. J. (Gulton Industries, Inc.) HOWE, Elroy E. (EFI) Chicago' Vitreous Corp. 1425 S. 55th Court, Cicero 50, III. HOWER, Lawrence D., Jr. (RI) Raybestos Div., 75 E. Main St. Stratford, Conn. HOWER, R. S. (BI) Allen-Bradley Co. 136 W. Greenfield Ave. Milwaukee 4, Wise, HOWIE, Thomas W. Campbell & Co. (Roughcastle) Ltd. Roughcastle Works, Falkirk, Scotland HOYET, Eugene (Gl R. R. 4, Box 214, Tar('ntum, Pa. (Pittsburgh Plate Glass Co.) HSU, Ku-hua I, King's Terrace, 1st Floor Kowloon, Hongkong, B.C.C. (Kiu Foong Enamel Factory (H.K.) Ltd.) HUBBELL, Dean S. (E) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. HUBBLE, David H. 206 Elm St., Edgewood Pittsburgh 18, Pa. HUBER, George S. (E) 314 Overbrook Rd., Baltimore 12. Md. (Pemco Corp.) HUBER, J. M. CORP. I D. Parker ~fc.\dno) 100 Park '-\\e.. :'\ew York N. Y. CERAMIC BULLETIN JBER-WARCO CO. AMERICAN CLAY MACHINERY DIV. (R. A. Garverick) 202 X. Green\\ood St .. ~Iarion, Ohio ;DSOK, Charles J. (R) JD.N74 Kewton St., West Boylston, ~Iass. SUPPLY & EQUIPMENT CO. '. Heine) ennsylvania A\'e., N. \\'. \ ington 6, D. C. :ETTlG, Fred R. (WI) 296 Brook Ave., Korth Plainfield. X. J (General Ceramics Corp.) ,'FFCUT, Harold \\'. (Gl \\'estinghouse Electric Corp. Electronic Tube Div., Box 284 Elmira, X. Y. ,:GHES. Donald L.. Jr. Box 84i . .-\lfred. X. Y. JGHES. George B. (E\ 236 Indiana Ave., Dayton 10. Ohi0 (Frigidaire Di\,., General :\Iotors Corp. \ JGHES, Walter ~I. (WI) 534 Putnam Ave., Zanesville, Ohio (Chicago Standard Transformer Corp.) _:GHEY, Vaughn V. (R) Basic, Inc., Maple Grove, Ohio JI, William L. C. (B) 'Radio Corp. of America, Tube Div. Marion, Ind. JLL, J. Brannon (W) Hull Pottery Co., 327 Amerine St. Crooksville, Ohio ULL POTTERY CO. . (J. Brannon Hull) 327 Amerine St., Crooksville, 'Ohio ULSE, Charles O. 463 615t St., Apt. A Oakland 9, Calif. UMENIK, Michael, Jr. (B) 28477 Parkwood Dr., Inkster, Mich. (Ford Motor Co.) UMMEL, Floyd A. (B) College of Mineral Industries 4IYIVania State University rsity Park, Pa. U , Richard (G) 6 Olympia Rd., Pittsburgh II, Pa. (Harshaw Chemical Co.) UMMEL, Roy (W) 4318 Grantley Rd., Toledo 13, Ohio (Champion Spark Plug Co.) UMPHREY, Richard A. (W) Mycalex Corp. of America Box 311, Clifton, N. J. UND, George J. (W) 227 Poplar Ave. N. W., Canton, Ohio (Sparta Ceramics Co.) UND, Ralph (R) Speer CarPon Co., Theresia St. St. Marys, Pa. UND, William O. (R) Box 172, Ranson, W. Va. (Standard Lime & Cement Co.) UNGERFORD, R. M. (X) Clayburn-Harbison Ltd. 850 W. Hastings St. Vancouver 9, B. C, Canada UNSBERGER, Jesse F. (R) A. P. de Sanno & Son, Inc. PhoeniX\'ille. Pa. UNT, Charl.., W. (W) 154 Vincent St .. Chagrin Falls, Ohio (Bestwall-Certain-Teed Sales Corp.) UNT, Herbert J. (G) Kimble Glass Co., Vinelat;ld, N. J. UNT, John F. (MI) Carpco Manufacturing, Inc. Box 3272, Jacksonville 6, Fla. 'UNTER, Charles E. (M) Box 430, Erwin, Tenn. olidated Feldspar Dept., ational Minerals & ical Corp.) UPPERT, Paul A. (El) 414 Randolph Rd .. Plainfield, K. J. I Gultnn I nclu.<tries, Inc.) HURD, Burgess M. (W) 3 Windy Crest Rd., Beaver Falls, Pa. (Ceramic Color & Chern. Mfg. Co.) HURLEY, Robert E. (B) 469 Camden Ave. Moorestown, Burlington County, N. J. (RCA Victor) Hl'RLEY, T. P. (B) Sprague Electric Co. Xorth Adams, Mass. HURST, Erwin J. (W) General Ceramics Corp. Plant 3, Research Dept. Keasbey, K. J. Hl'RST. James J .. Jr. .14" Hopkins St., S. \\' .. Atlanta. Ga. Hl'RST. Thomas L. (R I ~Ionsanto Chemical Co., Research Dept. Linclbergh & Oli"e 5t. Rds. ~t. Louis 24, ~[o. lll'TCHI:\S. John R.. IJ.I ~lassachusetts Institute of Technology (;raduate House. Rm. 619." Cambri,lge 3'>. ~Iass. Hl'TCHlSOX, Clark (EFI) i09 E. Armstrong St., Frankfort. Ind. (Ingram Richardson, Inc.) HUTCHISOX, R. C. (RI) 2133 Kewton Ave., Bethlehem, Pa. IBethlehem Steel Co.) HUTT, Glenn A. (EF) 19629 Scottsdale Blvd. Shaker Heights 22, Ohio (Ferro Corp.) HUTT, Gordon M. (M) Canadian Pacific Railway 703 Windsor Station Montreal 3, Que., Canada HUYCK, L. G. (E) Huyck Construction Co. 1861 DeCook Ave., Park Ridge, III. HYATT, Edmond P. (W) 3735 S. 3100 East St. Salt Lake City 9, Utah (Electro-Ceramics, Inc.) HYDE, Collin (RI) 581 Oxford St., Worthington, Ohio (Battelle Memorial Institute) HYNES, Frank J. (WI) Oxbow Rd." Wayland, Mass. (Raytheon MfR. Co.) HYSLOP, Joseph F. "Dromore," Major's Loan Falkirk, Scotland (J. G. Stein & Co., Ltd.) lANDER, J. Richard (M) Ceramic News, 509 S. Beverly Dr. Beverly Hills, Calif. ICHIKAWA, Yoshio (W) 1903 Hanover St., Apt. 10 Pittsburgh 18, Pa. (Westinghouse Electric Corp.) IDEAL-STANDARD, S. A. (Paul Lebrum). Vilvorde, Belgium IHRIG. Allen C. (G) 78 Boardman Ave. Cumberland Hills R. R, Manville. R. I. (Corning Glass Works) ILES, Ramon R. (G) 2223 St. James Ct., Owensboro. Ky. (General Electric Co.) ILIFF, Fred K. (W) Harshaw Chemical Co. Jackson & Swanson Sts. Philadelphia 48, Pa. ILUNG, Arno M. (W) 5412 Laconia. Cincinnati 37, Ohio (Cambridge Tile Mfg. Co.) ILLINOIS CLAY PRODUCTS CO. (Howard F. West) 68 N. Chicago St. Joliet. Ill. ILLYX ..\Iexis V. 1080 State Fair Blvd. Syracu,e a. X. Y. nl. Suk Choong Korean Ceramic Society :\0. 128-2 Suhrin-Dong. Chongro-Ku Seoul, Korea IMHOFF, Edward J. (M) United States Glass Co. Glassport, Pa. nl~fEDIATO, Robert R (WI) Sprague Electric Co., i\ashua, X. H. INDIAN CERAMIC SOCIETY (H. N. Roy) Dept. of Ceramics Benares Hindu Lni\'.. Benar.. ,. India INDIANA GEOLOGICAL SURVEY (Jack L. Harrison) Indiana Uni\'ersity. Bloomington, Ind. INDUSTRIAL CERAMIC PRODUCTS, INC. (c. R. Oberst) 965 W. Fifth Ave., Columbus 8, Ohio INDUSTRIA VENEZOLANA de VIDRIOS PLANOS C. A. I]. A. Azpurua c.) Ed. Humboldt :\p. 6, Sur Plaza ~lta1l1ira Caracas, Venezuela IXGERSOLL, Harry I E) 8340 Beacon .-\\t' .. Seattle 8, Wash. (Pemco Corp.) INGERSOLL-HUMPHYRES DIV. BORG-WARNER CORP. (G. W. Kelch) 201 E. Fifth St., Mansfield, Ohio IXGHAM, David (W) 448 North ..\\-e., Kittanning, Pa. (Eljer Dk, Murray Corp.) INGRAMRICHARDSON, INC. (R. H. Coin) Jefferson Rd. Frankfort, Ind. INSLEY, Herbert (BF) 5219 Farrington Rd. Washington 16, D. C. (Consulting Mineralogist) INSLEY, Robert H. (B) Champion Spark Plug Co., Ceramic Div. 8525 Butler Ave., Detroit 11, Mich. INSTITUT de CERAMIQUE FRANCAISE 6 Grande-Rue Sevres (5. & 0.), France lIlSulator-See General Electric Co. INTERNATIONAL CLAY MACHINERY CO. (R. H. McElroy) 1145 Bolander Ave., Dayton I, Ohio INTERNATIONAL COMMISSION ON GLASS (B. P. Dudding) Research Laboratories General Electric Co., Ltd. Wembley, Middlesex, England IRONTON FIRE BRICK CO. O. H. Rickey, Jr.) Box 536 Ironton, Ohio IROQUOIS CHINA CO. (Robert E. Anderson) 2320 Milton Ave., Syracuse 9, N. Y. IRVINE, George C. (WI) Canadian Carborundum Co., Ltd. Niagara Falls, Ont., Canada IRWIK, Joseph T. (E) 1618 Elmwood Ave. Lakewood 7, Ohio (Wim Chemicals) IRWIN, Philip P. (W) Potters Supply Co. East Liverpool, Ohio IRWIN, William W. (W) Potters Supply Co. 11 Washington St., East Liverpool, Ohio ISAACS, Richard P. 1M) 78 Elmwood Dr., Livingston, N. J. (Hammill & Gillespie, Inc.) ISAGAWA, Jun Nippon Toki Kaisha, Ltd. #1, Noritakeshinmachi, Nishiku Nagoya, Japan ISELIN, Charles W. (GJ) Thatcher Glass ~fanufacturing Co. Elmira, N. Y. ISENHOUR, C. W., Jr. (5) Isenhour Brick & Tile Co., Box 1249 Salisbury, N. C ISENHOUR. Tames V. IS) Sanforcl B;ick & Tile Co .. Colon. X. C. ROSTER :l,) I I , Ji ;;:,\HOUR, John H. (SF) 215 Confederate Ave., Salisbury, X. C. (Isenhour Brick & Tile Co.) ), Shozo ~ippon Gaishi Kaisha, Ltd. I, 2-Chome, Horita-dori, Mizuho-ku ,.a oya, Japan s R, Robert nrauchstrasse 106 38, Switzerland (Tonwerke Thayngen AG) ES, john B. (RI) 18 Standish St.. Frostburg, Md. (Big Sa"age Reiractories Diy. ~fexic(l Refractories Co.) EY, j. Ray (S) Acme Brick Co. R. R. I. ~I illsap, Texas ,BBL'sell, Anhnr J. IS) Pomona Terra-Cotta Co. Greensboro, ~. C. \CKl\L\~. A. j. IR) Vesll\'ius Crudble Co .. Box 82i5 Swiss"ale, Pittshurgh 18, Pa. \CKSO:-;, A. Curtis (SrI) Robinson Brick & Tile Co. 500 S. Santa Fe Dr.. Denver, Colo. \CKSO~. Arthur W. (R) Harbison-'Walker Refractories Co. Box 68, Athens, Texas \CKSOX, james A\'onhaugh', Stonehouse Lanarkshire, Scotland (Jackson, Elphick & Co. Ltd.) \CKSOX, james M. (G) Ball Brothers Research Corp. Box 191, Boulder, Colo. :\CKSO~, Mary .... (E) 11006 Montrose ""e. Garrett Park, Md. ACKSOX, Robert E. R. R. I, Lancaster, S. C. N VITRIFIED CHINA CO. lip R. Distillator) 2 \Vest St. am Manor 65, N. Y. ACKSON, Wharton (M) Wharton Jackson Co. 475 Huntington Dr. San Marino 9, Calif. ACKSON, William M., II (W) 13 Maura Dr., Woburn, Mass. (Godfrey L. Cabot, Inc.) :ACOB, Bernard T. (RI) National Crucible Co. Mermaid Lane & Qu~en St. Philadelphia 18, Pa. TACOBI, James H. (E) Avco Manufacturing Corp. Crosley-Bendix Home Appliances Div. Dept. 474, Nashville I, Tenn. JACOBS, Charles W. F. (W) 63 Hawthorne. Buffalo 23, N. Y. (Titanium Alloy Mfg. Div., National Lead Co.) JACOBS, H. Box 117, Vereeniging Transvaal, South Africa (Vereeniging Brick & Tile Co. Ltd.) JACOBS, Louis J. (R) Ramtite Co., 2563 W. 18th St. Chicago 8. Ill. JACOBS, Richard A. tG) Brockway Glass Co., Inc. Brockway, Pa. JACOBY. William R. 12 Dyer Dr.. ,lones"ille, N. Y. j;\FFE. Bernard (\\'1) 4238 Hinsdale Rd. South Euclid 21. Ohio t llevite Research Center) ON, Robert J. (G) bey-Owens-Ford Glass Co. 1701 E. Broadway, TOledo 5, Ohio JAMISON, C. Donald. Jr. (R) Koppers Co., Inc .. Eng. & Const. Di\ Koppers Bldg.. Pittshurgh 19, Pa. J AC\ ES. Clinton S., Jr. 1025 Vermont _\'e .. Pittsburgh 34, Pa. .T.\C\KE. Charles E. (5) 3-163 Winthrop Dr., Parma 29. Ohio (Cleveland Builde" Supply Co.) JANKOWSKI, Charles R. 16 Hakes Ave., Hornel. ~. Y . .T.\C\S~L\, Frank OIF) B F. Drakenfeld & Co .. lnr. Washington, Pa. jANSSEK, \VilIiam F. (M) 15 Oak Ridge Rd .. Basking Ridg<,~. (Bell Telephone Lahs.) ,l.\R\'IS. Theodore (B1' F(lrd In:-,trument Cll. .11H) Thom>nn \'e. L"n~ Island Cit~ 1. ~. Y. J.\SPER. Stanley J. (\\'J) 2411 Bell St .. Zane,,ille. Ohi" (~I,,>aic Tile Co.) .1EFFERY. Benjamin .\. I\VI Box 32. Tunlacacnri: .\riz. (Champion Spark PI\\K C" .. Ceramic DiL) JEFFREY, G. H. (W) Roder Ceramic Studio. 1331 R"l'l' SI. Philadelphia 7, Pa. JEC\KS. C E. (M) W. S. Tyler Co. 3615 Superior Ave., l". E. Cleveland 14, Ohio .1E:\:\I:\GS. Edward F. (R) 260 E. Walnut. Westfield, :\ . .I- (Carborundum Co.) jEXXY, A. R. (M) Combustion Engineering. Inc. Raymond Di,'., 1315 K. Branch St. Chicago 22, Ill. JEXSEX. Edwin K. eE) 2Q I5 Willoughhy Rd. Baltimore 14, Md. (Briggs Manufacturing Co.) JEPPSON, GeorR'e N. (RF) Norton Co.. One New Bond St. Worcester 6, Mass. .1EPPSOX. John (R) 40 Westwood Dr.. \Yorcester, Mass. (Norton Co.) JERO, Parker (E) 932 Birchwood Dr., Washington, 111. (Caterpillar Tractor Co.) nMMERSON, James E. (S) Henderson Clay Products, Box 870 Henderson, Texas JOHNS-MANVILLE SALES CORP. (J. C. Crawford, Jr.) 22 E. 40th St. New York 16, N. Y. JOHNS, William V. (W) Shenango China Inc., ~ew Ca.tle. Pa. JOHNSON, A. L. (WF) Universal-Rundle Corp. W. Keith McAfee Lab., Box 1268 Mahoningtown, Pa. JOHNSON. Alexander 11. H. L. Brisbane & Wunderlich Ltd. Lord St., East Perth. West A\\slr"li" .TOHXSOX, Alton E. (W1) 4<)03 ~. 53rd St .. ~{i1waukee, Wisc. rCentralab Div.. Globe-Union Inc.) JOHNSON, A. M. (R) Ross-Tacony Cr\\cihle (0. Robbins & Milnor Sts. Philadelphia 35, Pa. JOHXSOX. Ben 5206 \-alley Oak Dr.. :\\\stin .1. Texas JOH~SON, Bruce M. 353 Highland Dr., Seattle 9, Wash. JOHXSOX. Clarence L. (\\1) Glohe-Union Inc. QOO E. Keefe Ave .. ~filwaukee, Wisc. JOHXSOX. Da"id ~L (HJ) 4110 Berkshire A,e.. Louisville 5, Kv. I Corhart Refractories Co., Inc.) . JOH~SO~. Dudley B. (W) 27100 Tremaine Dr.. Euclid 32, Ohio (Brush Electronics Co.) JOHNSO~, Earle K. (S) Eureka Brick & Tile Co. Box 338. Clarksville. Ark. .TOH:\SO:\, Elwin L, 300 S. Goodwin Ave., Apt. 215 L'rbana, Ill. TOH~SO~, Fred H., jr. (SI . Summitville, Ohio (Summitville Face Brick Co.) JOHXSO:\, George E., Jr. (RI) North American Refractories Co. Curwensville, Pa. JOHNSON, Gordon H. (E) 24188 Gessner Rd. Xorth Olmstead, Ohio (Ferro Corp.) JOHXSON, Harold C. (G) Corning Glass Works Corning, N. Y. JOHNSOX, J. A. Progress Engineers, Ltd., Leek New Rd. Cobridge, Burslem Stoke-on-Tren~, England ,10H:\SO:\, James E. (I) 3173 Herrick Rd., Columbus, Ohio JOH~SO:\, James R. (BI) 4 Oak Knoll Dr. White Bear Lake 10, Minn. I ~iinnesota Mining & Mfg. Co.) JOH:\SOC\, Keith X. 441 Westwood Dr., Ames. Iowa ,lOH:\SON, Lawrence D. 1850 West Blvd., Tacoma 66, Wash. JOHNSON, LeRoy A. (E) 1206 Cleveland St., Evanston, Ill. (Chicago Vitreous Corp.) JOHXSON, Nonnan W. (R) Eaton Manufacturing Co. 9771 French Rd., Detroit, ~lich. JOHNSON, Paul V. (SF) Structural Clay Products Research Foundation, Geneva, 111. JOHNSON, William A. (E) 7269 Greenleaf Ave. Cleveland 30, Ohio (Ferro Corp.) JOHNSTON, James K. (M) 737 N. Park Ave., Norristown. Pa. (General Electric Co.) JOHNSTON, J. G. Leeds Fireclay Co., Ltd. Wortley, Leeds 12, England JOLLEY, Robert W. (R) 10 Ox Bow Lane, Bloomfield, Conn. (Hartford-Empire Co.) JO:\ .\5. Edward C. (G) University of Texas, Dept. of Geology Austin, Texas JONES, Cecil M., II (R) Box 65, Greendale Sta. 'Vorcester, Mass. (Norton Co.) .1OXES, Francis L. Box 538, Georgia Tech., Atlanta, Ga. .TO:\ES. Frank L. (R) Koppers Co., Inc .. Box 128, "erona, Pa. JO:\ES, George A. (G) 3411 Central Ave. Parkersburg, W. Va. (Corning Glass Works) .TO:\ES. Glen A. (B) Diamonite Products Mfg. Co. Shre"e. Ohio JONES, Howard E., Jr. (R) 19150 Robson, Detroit 35. ~1ich. (Jones- ~f undle & Co.) .1()~ES, John T. 1110 13th SI.. Golden. Colo. JONES, Maynard J. (E) Pbudler Co.. 1000 West Ave. Rochester II, N. Y. JONES METAL PRODUCTS CO. (Edwin F. Mulligan) West Lafavette, Ohio JO:\ES, Paul E. Oniston. Pa JOKES, Paul R. (X) West Virginia University Dept. of Chern. Engr. Morgantown, W. Va. JONES, Raymond B. (W) National Tile & Manufacturing Co. 1200 E. 26th St., Anderson. Ind. ..ROSTER ~i -------- \"ES, Richard E. (R) Pittsburgh Plate Glass Co. Research Laboratory, Creighton, Pa. \'ES, Robert O. (R) Standard Slag Co. Box 3, Gabbs, Kev. \'ES, Roger D. (R) ' hing PI., Buffalo 20, K. Y. o Refractories & . ves Corp.) \'KER, G. H. Philips Research Labs., Kastanjelaan Eindhoven, lI:etheriands \'TZ, Melvin L. (M) Box 32186. Los Angeles 32, Calii. (Melvin L. Jontz Co.) ROAN, John N. (G) Consumers Glass Co. Ltd. Box 456, Station B. Montreal, Que., Canada 'RDAN, John W. (M) Baroid Div., Kational Lead Co. Box 1675, Houston I, Texas ,ROAN, R. E., Jr. (W) Mosaic Tile Co., Zanesville, Ohio 'RGE\'SOK, Paul J. 1153 Sherman Ave. Salt Lake City, Utah IVA BRICK WORKS (J. L. Jova) Roseton, N. Y. lVA, ]. L. (S) Jova Brick Works, Roseton, N. Y. 'YKER, Bobby L. (W) Erie Technical Ceramics Div. Erie Resistor Corp. Box 677, State College, Pa. iDD, Donald M. (E) 19707 Wickfield Ave. Cleveland 22, Ohio (Ferro Corp.) JDD, Roger D. (S) Endicott Clay Products Co. Box 17, Fairbury, Kebr. JDKINS, Robert W. (W) Wilbur B. Driver Co. McCarter Hwy., Newark 4, N. J. J David (M) s Pen & Pencil Corp. 500 Willow Ave .. Hoboken, N. J. K .-\CICZ. Joseph M., Jr. 884 Red Oaks Dr., Elberon. ?\. J. :ADEY, Frederic L., JT, (B) Four Bridges Rd., Chester. \'. T. (Johns-Manville Corp.) . :AHLSON, W. S. (G) . General Electric Co., Lamp Dept. Pitney Glass Works, Nela Park 12 Cleveland, Ohio :AHN, Max (G) 4932 Oleander Dr., Wilmington, N. C. :AISER, Leonard F. (G) 332 E. Wayne St., Maumee, Ohio (Libbey-OwensFord Glass Co.) :.-\LLL'P, Charles. Jr., (WI) Helipot Corp., Box 458 \' ewport Beach, Calif. :ALMAN, Frank R. (EI) 2014 Baxterly Rd., Lakewood 7, Ohio (Pemco Corp.) (.-\L~IB.-\CH, \\'illiam J. (G) Owens-Illinois Techincal Center liOO K. Westwood .-he. Toledo i, Ohio (ALOUSEK, George L. (G) 2633 Merrimac Blvd., Toledo 6, Ohio (Owens Illinois) 'CAMICH, Barnet Z. (B) II Garwood St., South River, N. J. (Army Ordnance Corps) ;";:'WR, Anthony R. (GJI) Harrison A,e., Apt. 7 aso. Texas ittsburgh Plate Glass Co.) ;";:.\:\.-\ZA\\'A. Edward I BJI) 10056 Mann Dr .. ~Ionta Vista. Calif. I Lockheed .\ircraft Corp.) KA:\E. John L. (W) f457 \\'icklow Ave. Cincinnati 36. Ohio (Cincinnati Milling Products DiL, Cincinnati Milling ~lachine Co.) K.-\:\G, Yang G. Hankuk Gla,;s Indust"' Co. Ltd. Box 1082. 5 Kamchang.Dong, ChoongKu, Seoul, Korea K.-\:\TOR. NeilL (WI) 198 Mason Dr., Metuchen, N. J. (Crucible Steel Co. of America) KAPADIA. Homi (E) 302~/; \'. Fourth St.," Xiles, Mich. (Kawneer Co.) KAPPMEYER, Keith K. 10609 Lindberg Ave. Pittsburgh 35, Pa. KARKHANAVALA.M. D. 239, Botawala Bldg., Tardeo Bombay 7, India (Atomic Energy Commission) K:\R\'AS, John S. (W) 1715 W. Fourth St. Rd. Mansfield. Ohio (Jngersoll-Humphryes Div., Borg.\\arner Corp.) KAR:\ER, Ernest F. 806 S. Fifth St. Champaign, Ill. KASPER, Robert J. (R) Ohio Crankshaft Co. 3800 Harvard Ave.. Cleveland 5. Ohio KASSEES, John S. (B) American Testing Lab., Inc. Box 1421, Lancaster, Pa. KAST. Edward T. Box 847. Alfred, N. Y. KASTEN, Elliott A. 2041 Pacific St., Brooklyn 33, N. Y. KASTEN, Vernon L. (WI) Three Oaks, Box 84. Jackson, Mo. (Ceramo Co. Inc.) KASTENBEIN, Ernest L. (W) 100 E. Van Ness Ave., Rutherford, N. J (Tile Council of America) KATONA. Gabriel P. (Gn 65'/' Sterling St.. Corning, N. Y. (Corning Glass Works) KATZ, Joseph M. (WI) Lockheed Aircraft Corp. Missile Systems Di"., 65-70 Sunnyvale. Calif. KATZ. Sigmund (E) 24 Coolidge Ave .. West Orange. N. J. (Permadent Labs.) KAl'FFMAN, John R. (MFI) 13285 Braun Rd . Golden, Colo. (Speedster. Inc.) KAUFFMANN, Otto T. (W) Frontenac Floor & WalI Tile Ltd. Kingston, Ont., Canada KAUTZ. Karl (EFI) 24 Leon Rd., Pittsburgh 20, Pa. (Vitro Mfg. Co.) KAVADAS, Paul P. 4116 12th Ave., N. E .. Apt. 203 Seattle 5, Wash. KAY, William T. (R) E. J. Bartells Co. 1212 Sixth Ave., S., Seattle 4, Wash. KAYSER. Julius A. (R) Gladding, McBean & Co. 2901 Los Feliz Bhd. Los Angeles 39, Calif. KEANEY. J. C. (G) 1201 Banksville Rd., Pittsburgh 16. Pa. (Kational Lime & Stone Co.) KEAKEY, Joseph C., Jr. (G) Feldspar Corp., 1201 Banksville Rd. Pittsburgb 16, Pa. KEA\,EY, Robert C. (G) St. Lawrence Fluorspar, Inc. 1201 Banksville Rd., Pittsburgb 16, Pa. KEARNEY, John P. (G) 2723 Densmore Dr., Toledo 6, Ohio (Kimble Glass Co.) KEBLER, Leonard (E) Ward Leonard Electric Co. Mt. Vernon, N. Y. KEEFE, Daniel J., Jr. (WJ) 6 Circle Rd . Scarsdale, K. Y. \ C. S. Arm~') KEEFE. Robert ~L (R) 12 Beth Lane, ~Iah'ern, Pa. I H. K. ~rter Co.) KEEFER, George E. (G) Owens-Illinois Technical Center 1700 N. Westwood Ave. Toledo I, Ohio KEHL, Kelson H. (RI) E. J. Lavino & Co. Box 29, Norristown, Pa. KEIM, Laurence A. (G) 144 Cochran Rd., Pittsburgh 28, Pa. (Pittsburgh Plate Glass Co.) KEITH, Miss L. C. Canadian Ceramic Society 49 Turner Rd. Toronto 10, Ont., Canada KEITH, Wendell P. (RI) 1234 E. Marvista St., Whittier, Calif. (W. P. Keith Co.) KELCH, G. W. (W) Ingersoll.Humphryes Div. Borg-Warner Corp., 201 E. Fifth St. Mansfield, Ohio KELLER, Francis Pfungen, Switzerland (KelIer & Cie. A.G.) KELLER, George W. (G) Owens-Illinois 1700 N. Westwood Ave., Toledo 7, Ohio KELLEY, Joseph A. (S) Zonolite Co., Box 217 Travelers Rest, S. C. KELLY, Austin J. (E) Guelph Stove Co., Ltd., York Rd. Guelph, Ont., Canada KELLY, George D. (E) 1100 Dublin Rd., Columbus 8, Ohio (Battelle Memorial Institute) KELLY, Hal J. (R) 6025 52nd N. E., Seattle 5, Wash . (U. S. Bureau of Mines) KELLY, John V. (R) Kaiser Steel Corp. Box 217, Fontana, Calif. KELLY, Joseph F. (R) 301 Braddock Ave., Lansdowne, Pa. (Naval Boiler & Turbine Lab.) KELLY, William J. (WI) 912 29th St., Hondo, Texas (Universal-Rundle Corp.) KELSEY FERGUSON BRICK CO. (R. ~1. Carpenter) East Windsor Hill. Conn. KELSEY, V. V. (MF) Winton Farm, Clifford, Va. (Consultant) KELTON, Stanton c., Jr. (G) Rohm & Haas Co., Bristol, Pa. KEMP. John A., Jr. (W) Church St.. R. R. I. Brooklyn. Conn. (American-Standard) KEMPF, William C. (Rn 28 Homer PI., Metuchen, N. J. (Carborundum Co.) KENAGY. Lloyd X. (RJ) iiO Fetters Mill Rd. Huntingdon Valley, Pa. (General Refractories Co.) KEKAGY, William L. (RFI) no Fetters Mill Rd. Huntingdon Valley, Pa. (Simonds Abrasive Co.) KE:\ ,\X. Wilfred ~I. 3012 Farrior Rd., Raleigh, N. C. KENDALL, Thomas A. (S) Cniversity of Kentucky College of Eng., Lexington, Ky. KE:\DRICK, Robert W. (D) One Elm \\'a)', Westboro, Mass. (Bay State Abrasive Products Co.) KENDR1CK. Thomas B. (G) Lancaster Glass Corp. 220226 W. ~iain St., Lancaster. Ohio I, [""EDY, Richard \\. (W) 373 \\'inchester A,'e. Langhorne. P~, \Star Porcelain Co.) E:\T, Joseph P. (WI) 247 Starr St. Brooklyn 37, N. Y. (Leviton Mfg. Co. Inc.) E:\T, N. Johnson (RI) -ManVille Sales Corp. 40th St.. :\ew York 16. N. Y. E 'illiamB.\~111 I 5 Fain'iew Place. Alliance. Ohi, \ Kentucky-Tenne".ee Clay Co.1 :ENTUCKY CLAY MINING CO. , (W. J. Watkins) ~layfield, Ky ENTUCKY-TENNESSEE CLAY CO., INC. I Chester Gulick' ~Iayfield, Ky. ,E~\\'ORTHY. Orville O. (B) 1486 Arthur Ave . Lakewood 7, Ohio (Ferro Corp.) :E:\YO:--<. Clark (\\') Frenchtown Porcelain Co. F renchto",n, 1'\. J. :EPKA, George ~L \~1I) Braun Corp., 1363 S. Bonnie Beach PI. Los Angeles 54. Calif. ~EPLI:\GER, Robert B. (RFI) Carroll Clay Co. Box 56, Carrollton, Ohio ~ERII\'S, M. P., Jr. (E) Stauffer Chemical Co. 380 Madison Ave., Kew York, N. Y. :~ERLA, Hans (R) 525 Beaumont Ave., Baltimore 12, Md. (Kerloid Corp.) :(ERPER, Matthew J. (BI) I\'ational Bureau of Standards Div. 9.2. Washington 25. D. C. :<ERR, Charles H, (GF) 2861 Chatsworth Blvd. San Diego 6. Calif. KERR. John M. (BJ) 117 Amherst Lane. Oak Ridge. Tenn. (Union Carbide :\uclear Co.) KERR, W. Raymond (RFI) tf;trong Cork Co, 441, Beaver Falls. Pa. K GE. Frank E. ohnson ~latthey & Co. Ltd. Research Labs., Exhibition Ground; Wembley, Middlesex, England KERSHNER, William G. (WI) 117 S. 14th St. Olean. K. Y (Olean Tile Co.) KESSEL. David J, 601 W. High St.. Urbana. Ill. KESTER. Ralph G. (RI) 1394 June Dr . Maumee, Ohio (Kimble Glass Div.; Owens-Illinois) KEYS. Robert A., Jr. 308 Whitehall Rd . Anderson, S. C. KIBLER, H. W. (W) Southern Potteries, Inc. Box 279. Erwin, Tenn. KIEHL. Harry R. (G) 223 Chemung St. Corning, N. Y. (Corning Glass Works) KIESOW, Paul F. (G) Forest Hi1Is Dr., Elmira, N. Y. (Westinghouse Electric Corp.) KILCOYNE, John R (W) Canadian Porcelain Co. Ltd. Box 428. Hamilton. Ont., Canada KILGORE CERAMICS CORP. (D. H. \\'alkup) Box 1619 Kilgore, Texas KILU1AR, Henry' M. (RI) Carborundum Co., Box 268 Perth Amboy, N. J. KI~I. Kee Hyong Pennsylvania State University Box 22. College of Mineral Industrie,. ni,.erSity Park. Pa. You S. rth Carolina State College ept. of ~1 ineral Industries Raleigh. ~. C. KIMBLE GLASS CO. (H. R Black) 1700 ~. \\'{"!\\'llOc! :\\-e., Toledo, Ohi .. KI~G, Burnham W., Jr. (EFI) 2234 Lane Rd . Columbus 21. Ohio (Battelle ~lemorial Institute) KI~G, Charles B. (G) I~9 Cedar St. Corning, N. y, \ Corning Glass Works) KI"G. Gerard ]. \B) 1209 ~. Quaker Lane.\pt. 203 .\Iexandria, Va. I E.R.D.L. Fort Bel""ir I KI~G, Harry ~f. (1) 942 \\'. State, Sycamore. Ill. (Anaconda \\'ire & Cable Co.) r.:l"G, R ~l. (XFJ) . Lord Hall, Ohio State l'niv. Columbus 10. Ohio KI~G, Robert G. (W) 143 ~, Center St.. Grove City. Pa. I Vitro Mfg. Co.) KI~G, Robert M. 807 5, \ictor. Champaign, 1I1. KI~G, Walter F. (~[) 365 Arborlea Ave . Morrisville, Pa (Shenandoah Silica Co., Inc.) Kl:\(;. Wayne \\'. IR) 1\03 Kingston Rd .. Baltimore 12. ~llL (\\'. S. Tyler Co.) KINGERY, W. D. (B) Ceramics Div., Mass. Inst. of Tech Cambridge. Mass. KINSMAN, Bradley Q. (MI) 7 Wicks Blvd . Corning. ". Y. (Corning Glass Works) KIRCHER, Paul J. (G) Maryland Glass Corp. 2147 Wicomico St., Baltimore 30. Md. KIRCHER. Wolfgang Didier-Werke, 16 Lessingstr. \\'iesbaden. 'Vest Germam' KIRCH~ER. Henry P .. Jr. (Bl Cornell Aeronautical Lab. 4455 Genesee St. Buffalo, K. Y. KIRKE:\D .... LE. G. A. (XI) State Uni"ersity of New York College of Ceramics. at Alfred Uni,. Alfred, ~. Y. KIRKPATRICK. Frank (WF!) 2920 l>lanhattan .'he. Hermosa Beach. Calif. (General Tile Co.) KIRKPATRICK, Harry B. (E) National Bureau of Standards Di". 9.4. Washington 25. D. C. KLANE. Frank (G) Corning Glass Works, Corning. K Y, KL:\TT. Robert W. (G) .\merican Zinc Sales Co. n \\'. \\'ashington St.. Chicago. Ill. KLACS. In'ing (\\') 137 Winthrop Rd. Washington Park, ~ixon. :\. J. (Permadent Products. lnc.) KL.\ l'S, Sol C.. Jr. (W) 50 5. Munn Ave" Apt. 804 East Orange. N. J. (General Instrument Corp.) KLEEM.\N, Lee A. (R) 5700 Center A\'e .. Apt. 906 Pittsburgh 6. Pa. (Harbison-\\'alker Refractories Co.) KLEIN, Jonathan D. Massachusetts Institute of Technolol(v Rm. 4-051, Cambridge 39, Mass. KLEIXHANS. C. J. (E) Porcelain Metals Corp. 1400 S. 13th St., Louisville 10. Ky. KLEI~p,\rL, Mrs. EHeide Kleinpaul Caolini Argille ed At1ini Via Luigi Razza 2, Milano. Italy KLEKOTKA, Joseph F. (G) 3601 Reed St .. Philadelphia 46. Pa. (Philadelphia Naval Base) KLEVENS, H. B. (G) Mellon Institute University of Pittsburgh Pittsburllh 13. Pa. KLEYMEYER. Clifford A. (5) Standard Brick & Tile Corp. 123 N. W. Fourth 51. E"ans\'ille 8, Ind. KLICKER. Eyerett E. (R) ~[ichigan Chemical Corp. Saint Louis. ~lich. KLI~I.\N, Morton 1. \B) 6 Sutton St., ~lattapan 26, ~Ias;. I.\rthur D. Little, Inc.) J-.:LI~DER. Thomas W. 215 Princeton Rd., Parlin, N. ] . KLI~E, Hugh L. (R) Corhart Refractories Co . Inc. 1600 W. Lee St., Louisville 10, Ky J-.:L1NEFELTER, T. A. (RFI) 2116 "F" St.. ". W. \\'a,hington 7. D. C. Il. S. Bureau of Mine",1 KLI:\GSBERG. Cyrus 508 Linden Rd., State Collcge. Pa. KLI 1'l'ER. Joseph (~11 Clipper Diamond Tool Co.. Inc. 3~5 Hudson St.. ~ew York 14, ~. Y. KLOCKE. Edward J. (M) H. C. Spinks Clay Co. Inc. JIIIIII Fir,t National Bank Bldg. Cincinnati 2, Ohio J-.:LOCK:\ER. Herman Richard (El l'ni"ersal-Rundle Corp. \\'. Keith ~lcAfee Lab., Box 1268 ~lahoningtown. Pa. K~ :\1'1'. Robert C. (w) Totman Rd., R R 1 East Syracuse, N. Y. (In,.ulator Dept .. General E'cltric Co.) K~A1'P, Thomas E. (W) 120 Mission Meade Rd., Kell' Ca-tle, Pa. (Shenango China, Inc.) K~APP. William J. (BI) l:nh'ersity of California Dept. of Engineering Los Angeles 24. Calif. KNAUFT, Robert W. (R) Charles Taylor Sons Co. Box 58, Annex Station Cincinnati 14, Ohio K!\ECHT, Albert O. (WI) 201 Edgewood Ave., New Caslle Pa (Universal-Rundle Corp.) K~ESEL. Les (W) Cala Tile 4911 E. Slauson Ave. Maywood. Calif. KNIGHT, E. H. (5) ~laurice A. Knight. "Knight-\\'are" Box 150, Crooksville, (II"" KKIGHT. M. A. Jr. (S) ~laurice A. Knight, "Knight-\\'are" Box 111, Akron 9, Ohio KNIGHT, MAURICE A . "KNIGHTWARE" (M. A. Knight, Jr.) Box 111, Akron 9, Ohio K~IGHT. ~lellen A, (B) Minnesota Mining & Mfg. Co. 2301 Hudson Rd., St. Paul 6, Minn, K"IGHTOK, Heywood J. (G) 5~2 Lakepointe Grosse Pointe Park 30. Mich. (Ford Motor Co.) K~ISELY, Robert C. (G) 2907 Letchworth Pky. Toledo 6, Ohio (Kimble Glass Co.) KNIZEK, Jan Otto (R) Apartado 27.19, Me,ico. D. F, Mexico (Compania Mexicana ,1e Tubos de Albanal. S. A.) K~OBLAUGH. Walter C. (Rl) Box 271. RR 3, Tiffin, Ohio (Basic,lnc.) KNOWLES, EDWIN M" CHINA CO. (W. D. Packman) Newell. W. Va. K"OWLES. Philip S. \5) 210 Tavlor Rd.. Elgin, Texas (Elgin 'Butler Brick Co.) K:\OWLTO:\, Donald E. (W) 510 S. OsaRe A,'e., lnglewood, Calif. (General Tile Co.) K~O\\'LTO~, Samuel H. (W) 1615 BirminRham Blvd. Birmingham. ~lich. (,\\uminum Co. of America) RCISTER IiI II I I~ .. James J. (G) leillzer St., A"enel, X. J. 'lOX Laborator)', Inc.) SEl':, Friedrich P. (BI) 2 Crescent St., Washington 16, D. C. ational Bureau of Standards) SEN, Rolf r.g ,P. A., Norway o Fabrilclker) S ivind (R) est efractories Co. x 169. lone, Calif. . Daniel O. (M) 1. du Pont de Nemours & Co., Inc. ectrochemicals Dept. Buckingham Ave. ,rth Amboy, N. J. . Frank A. (M) ational. Sales Corp. 17 E. Fourth St.. Cincinnati 2. Ohio I. Renato arconi Italiana S. p . .\. :abilimento Tubi Elettronici ia Pile 60, L'Aquila. Ital; {. Richard L. (B) .alter Kidde & Co. 25 Broadway, };'ewark. X. J. -1, William J. (WI) " C. F. Electronics 336 N. Henry St., Alexandria, Va. -IANEK, Michel (R) 141 153rd St., S. E., Bellevue, Wash. Gladding, McBean & Co.) HLER, W. A. (Rn -.!ineral Industries Bldg. ,vest Virginia University lIorgantown, W. Va. NIG, Charles Jacob (WFl) ~ngr. Expt. Sta., Ohio State l.:niversity :olumbus 10, Ohio NIG, E. W. (M) :onsolidated Feldspar Dept. International Minerals & Chemical Corp. 20 N. Wacker Dr., Chicago 6, Ill. :NIG, John H. (WFI) rs, The State Uni"ersity S of Ceramics X nswick, };'. J. : , . C. (X) Lindberg Engineering Co. 2450 W. Hubbard St., Chicago 12, Ill. -1L, Hans Leerbachstr, 117 Frankfurt A. M., Germany (Degussa) HL, Walter H. (R) 12598 Valley View Dr. Los Altos, Calif. (Stanford University) 'lLER, Anthony M. (R) 400 Atlantic Ave., Springlake, N. J. (Consultant) HLER CO. (G. P. Gavin) Kohler, Wise HLER, Maurice A. (R) 415 Monmouth Ave. Spring Lake, N. J. (Babcock & Wilcox Co.) HN, Joseph (W) Universal Dental Co. 48th & Brown Sts., Philadelphia 39, Pa. 'H1'\E, Frank H. (\V) Ceramic Color & Chemical ~Hg. Co. "ew Brighton, Pa. 'LLIE. Thomas G. 653 Willard A,e .. S. W .. Atlanta, Ga. ILSTAD, John H. (M) 3604 Laguna Dr.. Decatur. Ga. (InterKiln-SalgQ Engineering Co.) I:'oiOPICKY, Kamillo Forschungsinstitut der FeuerfestIndustrie Helmholtzstr. 27, Bonn. Germany ) . 'TCH. Gilbert D. '. 74th Ave. Ood Park 35, 111. )XRAD. Howard E. (R) Claire Dr.. R. R. 5. Somerville. 1'\. J. (J .. hn'~[amille Corp.) KOOl), K. CJvlmotte Unie N.V. 7, Tielerweg Geldermalsen, Holland KOOS, E. K. (WI) Sterlirrg China Co. East Liverpool, Ohio KOPP GLASS, INC. (C. E. Leberknight) Box 82'55 Pittsburgh 18. Pa. KOPPERS CO., INC. (Frank L. Jones) Box 128, Verona. Pa. KORA, Yosio 2 Chome, KatsuyamaCho Yawata, Fukuoka. )apan (Kurosaki Fire Brick ~Hg. Co. Ltd.1 KOROLKOFF. Xicholas O. (W) Rome Air Development Center. CSAF RCSGPP-Griftiss .\FB, Rome. X. Y. KOSCHXY, Arthur American Ceramic Societ), Inc. 4055 X. High St., Columbus 14. Ohio KOSHCBA. \\'alter J. (BI) . 424 Hillcrest Dr., Wyoming IS. Ohio (General Electric Co.) KOVALICH, Joseph J. (\\') 189 Villa PI., Rahway, X. J. (Radio Corp. of America) KOWAL, Leo B. (G) Canadian Pittsburgh Industries, Ltd. 300 Blvd. St. Croix Ville St. Laurent, Que.. Canada KOWALKA, Warren R. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio KRAFT, C. W. (5) Kraftile Co., Niles, Calif. KRAFT, Maurice M. (E) Kraft Chemical Co. 917 W. 18th St., Chicago, 111. KRAFT, Ralph G. (B) 102 W. Chateau Place Milwaukee 17, Wise. (AllenBradley Co.) KRAFTILE CO. (C. W. Kraft) Niles, Calif. KRANER, Hobart M. (BFI) Bethlehem Steel Co. Bethlehem, Pa. KREGER, John M. (R) Valentine Fire Brick Co. Div. A. P. Green Fire Brick Co. Woodbridge, N. J. KREHBIEL, Frederick H. (G) Box 36, Pataskala, Ohio (Owens-Corning Fiberglas Corp.) KREHBIEL, H. Orton (W) Pyrocones Inc., Pataskala, Ohio KREIDL. E. L. (G) A. D. Little, Inc. 30 Memorial Dr., Cambridge, Mass. KREIDL, Norbert J. (GF) 40 Milford Rd., Rochester 10, N. Y. (Bausch & Lomb Optical Co.) KREUER, Albert L. (M) Ore fraction, Inc., 7425 Thomas St. Pittsburgh 8, Pa. KRIEGEL, W. Wurth (XFI) 149 Dallam Rd., Newark, DeL (North Carolina State College) KRIGER, Frederick S. (G) 148 E. Second St., Corning, N. Y. (Corning Glass Works) KRILL. Karl E. (B) Ohio State Vniversity Columbus 10, Ohio KROECK, Wi1Iiam H. (G) Corning Glass Works BolC 544, Coming, N. Y. KROGSTIE, Lars Bernhard Fredrikstad, Norway (Norsk Teknisk Porselenfabrikk) KRONBERG, Marritt L. (B) General Electric Co., Research Lab. Schenectady, N. Y. KROXMAN, Samuel J. (WI) Carteret China Co. High 51.. Carteret, N. J. KRULL, Alan R. (B) Technological Institute Library Northwestern University Evanston, III. KRl.:~IWIEDE, John F. 404 Fox River St.. Plainfield. Ill. KRCSOX, Joseph H. \R) Box 358, Frostburg, Md. (Big San.ge Refractories Di\'. ~[exico Refractories Co.) KRYSTYXL\K, Ca,imir W. (R) 343 Howell St., Schenectady 3, X. Y. (General Electric Co.) KRYWULT, Edward Z. (W) 171 St. Joseph Ave. Long Beach 3, Calif. (Huntington Tile, Inc.) KCECHLER, Adolph (WI) 169 Congress Ave., Providence 7, R. 1. (American Emer)' \Vheel Works) KeGLER. "'illy Stoneware Factory Embrach Ltd. Embrach. Zurich, Switzerland KULCSAR, Frank (B) Clevite Research Center 5~0 E. 105th St., Cleveland 8, Ohio Kl.:MIXS, Charles A. (B) Interchemical Corp. 432 W. 45th St., New York 36, N. Y. KUNDLER, Hanns H. (M) Arnhold Ceramics, Inc. One E. 57th St., New York 22, N. Y. KUNZMAN, Edward E. (MI) Ferro Corp., 4150 E. 56th St. Cleveland 5. Ohio KURKJIAX, Charles R. Department of Glass Technology Sheffield University Sheffield, England KURTZ. Peter, Jr. 827 Second St., Apt. B. Santa Monica, Calif. KUSHNER, Burton A. Box 5188, Georgia Tech., Atlanta, Ga. KUYPER, Geoffrey S. (I) Griffin Wheel Co. 445 X. Sacramento Blvd., Chicago, Ill. KYANITE MINING CORP. (Gene Dixon) Cullen, Va. KYI, ~laung Yu Cnion of Burma Applied Research Inst. Junction of Kaha Ave.-Kanbe Rd. Kanbe, Rangoon, Burma KYOKW.\I, Yogy? Ceramic Association, Japan No.7, Shiba 1'\ishikubosakura Gawa-Cho. ~linato-Ku. Tokyo, Japan KYO~KA, Joseph C. (WI) 303 12th Ave. };'., Hopkins, Minn. (Ceramic Arts Studio) L LABANSAT, M. Jacques Societe Professionnelle Des Produits Francais De Terre Cuite 23, rue de Cronstadt, Paris XV, France LABORATORIO QUIMICO NACIONAL (Jorge Ancizar-Sordo) Ministerio de Minas y Petroleos Apartado 2577, Bogota, Colombia LACHMAX, Irwin ~L (WI) 18 Pine Dr., Roosevelt, N. J. <Thermo Materials, Inc.) LACLEDECHRISTY WORKS REFRACTORIES DIV. H. K. PORTER CO. (W. L. Fabianic) 4705 Ridgewood Ave., St. Louis, Mo. LACONICH, Sixto Godofredo Porcelana Americana S. A. San Julian y Andes Lomas de Zamora, F.C.N.G.R. Argentina LACY, Lymau \Y. (S) Cannon & Co., Box 802 Sacramento 4. Calif. LADOO, Raymond B. (M) 42 Huntington Rd., Newton 58, Mass. (Con~ulting Engineer) ROSTER G:3 -----~IIIlIWW!'lJ!!!I_._...=-=... a .UtE.!@44Q 4SheSna , j.i ;.i,..' ,FORGE, Louis H., Jr. tW) 764 :'larion "'ve., Palo Alto, Calif. I Consulting Engineer) \IDLER, Douglas S. 84, Vicarage Ln. Kings Langley, Herts, England (Associated Lead Manufacturers Ltd \ .\ . R,Charles (S1) 462, Holl~' Springs, :'Iiss. y Springs Brick & Tile Co .. Inc. \ .\ . Edward W. (S) 1301 :'Ion roe, Baytown, Texas I C~dar Bayou Brick & Tile Co.) ..\iRD, Robert K. (Ei 4507 Blue Bird "'ve., Louis"ille 13, Ky. \ .\merican Radiator & Standard Samtary Corp .. Plumbing Di'.1 ..\KT.\SICH. Peter M. JilllX 847. :\!fred. ~. Y. -.,~I:\IRE, Robert V. (Rj) Sawmill Rd., Warren Tp. Plainfield. ~ J. I International :-\ickel Co., Inc.) ' .. \~1 \R. George B. (R) Interchemical Corp., Albion Kaolin Di,. Hcphzihah, Ga. L.\:'I\R. Wayland W. (RJ) Hephzibah. Ga. IInterchemical Corp.) LA:'IB. Hal (M) Braun CO'1'., 1363 S. Bonnie Beach PI. los AnReles 54. Calif. 1..\:\1 BE, e. M. (MFI) 2319 Thyer St., Evanston, Ill. (United States Gypsum Co.) LUI BERT, Joseph M. (G) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. L ... ~IBERTSO~, Wingate A. (BI) Carborundum Co., Research Lab. ~ial{ara Falls. N. Y. L.UIBERTUS, Harold (B) .\merican Bearing Corp. 429 S. Harding St. Indianapolis 7, Ind. l iE, ]. M. (R) 'nellav Clav Products Co. :"hi~gton: Pa. L.. B.\CK. Charles R., Jr. (M) Carborundum Co .. Keasbey, N. J. LA~DRON, Rafael, Jr. (R) Corning Glass Works, Corning. X. Y. L.\XE, George J. (!II) E,lgar Plastic Kaolin Co. Erlgar, Fla. LAXE. Richard O. (WI) !\Iacklin Co.. 2917 Wildwood Ave. Jackson. Mich. LAXG, Richard L. <G) Ohio Fuel Gas Co. 17 N. Fourth St.. Zanes"i11e, Ohio LA~G, Samuel G. (E) Hartwood Glass & ~Ietals Co. Box 865, Martinshtrg. W. Va. L\XG. S. M. (W) Xuclear Materials & Equipment Corp. Box 436, Apollo, Pa. L\XGE, James M. (Rl Bethlehem Steel Co.. Fuel Div. Bethlehem. Pa. LA~GE, Louis A. (~1) Industrial Heat Control Products 641 Hawthorne A'e. South Milwaukee. Wisc. L\XGROD, Kasimir IW) 4ti2 Locust Terr .. West Hempstead. :-\. Y. (SylvaniaCorning ~uclear Corp.) LA~GSTON, Robert B. University of California Hearst Mining Bldg., Rm. 164 Berkeley 4. Calif. NIER, William S. (R) Babcock & \Vileox Co. Old Savannah Rd . Augusta, Ga. LAX:\ES. Eugene ~1. (RI) 1695 N. Cnion St.. Fostoria, Ohio (Hoeganaes Sponge Iron) VOL. ~(). ;\0. 10 (1\1,')7) LAPP, Grover W. (MF) Lapp Engineering Co. 68 W. Main St., Le Roy, N. Y. LAPP INSULATOR CO., INC. (1(. E. Stettinius) Le Roy, N. Y. L.\RISCH, Herbert W. 1E) 10 Rutgers St .. E. Hill E'late, Smithtown, X. Y. (Fairchild Engine Di\. I L.\RKI:\. Paul G. (D) ~50 :-;. Harrison St., C":lIphel!. Calif. (Consultant) LAROCCA, Frank J. (R) Colorado Fuel &. I rOll Corp. Box 316, Puehlo. (010. L.\RSE:\, Inge ~[arie .\S Bing &. Grond~hl \. e;;terbrog~de. 14~ Copenhagen. Denm'ark L\RSO:\. Edward .-\. lSI Larson Clay Pipe Co.' ClCl80 Van D\ ke .-\\ e. Dctroit 3~, ~Iich. L.\RSO:\. Paul'F 1\\')' 3866 Norman ..he., :-\ \\'. Canton 9, Ohio ISp~rta Ceramic Co.) L\RSO:\. Thomas L. CR.1) 9il Pleasant, Boulder. Colo. (C. S. ~avy) LASE~tAN, Malcolm E. (S) 51 S. Fenton St., Denver 14, Colo. (Robinson Brick & Tile Co.) LASKY, Elliott Box 847, Alfred, N. Y. LASS, George 243 Upson Lane Xew Brunswick, N. J. LASSITER. Perry B. (RJ) 3011 Wrightsboro Rd.. Augusta, Ga. (Babcock & Wilcox Co.) LATCHFORD GLASS CO, (e. L. Dillon) Box 71707 Los Angeles I, Calif. LATHE. Frank E. (R) ~ational Research Council Ottawa, Ont., Canada LATI~fER. Glen H. (R) 2613 Dogwood Ln., E'''l ::-\orritoll Tp. Norristown, Pa. (E. J. Lavino & Co.) 1..-\TnlER. Horace L. (WI) 248 Questend Ave. ~Iount Lebanon, Pittsburgh 3~, Pa. (0. Hommel Co.) LATIMER. Trent W. Ohio State Unh'ersity, Baker Hall Columbus 10, Ohio LATTIN, Judson M. (R) 14644 S. Edbrooke Ave.. Dolton, II!. (International Harvester Co.) L.\FCH~ER, Julian H. <E) Fniversity of Illinois Dept. of Ceramic Engineering l'rbana. Ill. LAUGHLIN. HOMER. CHINA CO. n. M. Wells) Newell. W. Va. LAl'RIE, DOMINIC (RI) Titanium Alloy Mfg. Div., National Lead Co. :\ial{ara Falls, N. Y. LAF7.-\l:. Wilhur R. (R) ~ational Carhon Cn .. Fo;;toria. Ohio LAWLESS. Emmett A.. Jr. (S) Alton Brick Co., Box 394, Alton, I11. LA WRENCE. Howard O. (W) Industrial Ceramics Ltd. Cook,,il1e. Ont.. Canada LAWRENCE, Ralph V. (RIl 926 Kenneth Rei., Glendale 2, Calif. (Gladding, McBean & Co.) LAWRENCE, Walter F., Jr. (WI) 153 Morningside Rd., Verona, N. ]. (RCA Victor) LAWRE!\CE. Willis G. (8) State University of New York, College of Ceramics, Alfred, N. Y. LAWSOX, W. Branch (W) 64i ~. Elm St., Erwin, Tenn. (Lawson Feldspar & ~Iinerals) L\XTU:-":. \\ dour \1..1) Continental Can Co., Inc. Hazel.\tlas Glass Div. 121'> ~Iarket St., Zanesville, Ohio L.\YDE:':, George K, Jr. PenllS\''''ania State Uni"ersity Box 23. ~Iineral Industries rni\ ,,r~it\ Park, Pa. LAYNE. Fwi A. (W) Louthan :'Ug. Co., Box i81 East Liverpool, Uhio L.\\'SO:':, W. G., Jr. (W) 511< Sterling St., Chattanooga 5. Tenll. I.\merican Lava Corp.) L.\YTON, Donald R. (Gl) Brockway Glass Co., Brockway, Pa. L.\ZARKIS, Peter J. (\\'l 37 Fifth Ave., Watertown. :'Ia. (Raytheon Manufacturing Co.) LEAD iNDUSTRIES ASSOCIATION I Robert L. Ziegfeld 1 60 E. 4~nd St. ~ew York 17, N. Y. LEAKE, Fred, Jr. (M) Evans Lead Corp., Box H6i Charleston 25, W. Va. LE.\:\DER. Karl Johan .\ B H og-an:lsmetoder Hoganas, Sweden LE.\\'ER, Stanley (R) 6'>17 Buffalo Ave .. Apt. 2 ~iagara Falls, K. Y. [Carborundum Co.) LE BELL, Rolf Casimir Pargas Kalkbergs Aktiebolag ABO Kakelfabrik Slottsgatan 52, ABO, Finland LEBERKNIGHT, C. E. (GF) Kopp Glass, Inc. Box 8255, Pittsburgh 18, Pa. LeBLAXC, John R. Box 807. Alfred, N. Y. LEBRU:\, Paul Ideal-Standard, S. A. Vilvorde, Belgium LEDBETTER, George R. R. R. 2, Box 303, Rolla, Mo. LEDDY, Robert M. (51) Box 128, Hammonton, N. J. (Alliance Oay Product Co.) LEDLOW, Forrest L. (W) .-\ztec Ceramics, Inc., Box 337 San :\ntonio, Texas LEE CLAY PRODUCTS CO., INC. (Martin S. Bowne) Oearfield, Ky. LEE, Don W. 20 Westgate, Cambridge 39, Mass. LEE, Harley C. (RF) Basic, Inc., 845 Hanna Bldg. Cleveland 15, Ohio LEE. lames A. (5) S~uthern Brick & Tile :\Ifgrs. Assn. 230 Spring St., N. W., Atlanta 3, Ga. LEE, P. William (BI) 205 Elmwood Blvd., York, Pa. (Dentist's Supply Co. of New York) LEECH, L. G. H. & G. Thynne, Ltd. Victoria Tile Works Holmer, Hereford, England LEES, Arch A. (R) 411 Avon Dr., Pittsburgh 16, Pa. (Carborundum Co.) LEFFORGE, John W. (B) ,VI Highland Ave. Lvnnfiel,l Center, Mass. I Emerson & (uming. Inc.) LEFORT, Henry G., Jr. (I) 411 Fairlawn Dr., Urbana, Ill. LE HERON, Harold Etablissements Porcher Usines de Revin, Ardennes, France LEIBIG, Edward C. (R) Corning Glass Works, Corning, N. Y. LEIBSO!\, J. S. (WI) Insulator Dept., General Electric Co. S. Charles & Cromwell Sts. Baltimore 3, Md. LEIPOLD, Martin H., Jr. 95 E. l~th Ave., Columbus 10, Ohio ROSTER (if) - - - - - - - -...-.. . ,1 _z_...lt2_2__'11; :ISER, Craig F. 8344 30th K. W., Seattle 7, Wash. :ISEY. \\'illiam B. (G) 615 Elm Ave., Muhlenberg Park Reading, Pa. I "'estern Electric Co.) ,ITTEX, Carl F. (R) -, awkins Ave., Hamburg, X. Y. ro Refractories asives Corp.) ::L.. . John A. (E) I:~OOI Weatherby Rd. Los Alamitos, Calif. , (Douglas Aircraft Co.) E~iMERMAN. Paul C. (R) E. I. du Pont de Nemours & Co., Inc. Grasselli Chemicals Dept. 1321 Xational City Bank Bldg. Cleveland 14, Ohio r:MUXYON, James S. (E) Tappan Stove Co., :!50 \\'ayne St. Mansfield, Ohio EXCI-IXER, Theodore (DF) 5158 Beeler St., Pittsburgh 17, Pa. (Vitro Manufacturing Co.) ,E!\!\ON, A. G. (W) Canadian Potteries Ltd. 360 Blvd. du Seminaire St. Johns, Que., Canada .ENNON, John W. (WI) Battelle Memorial Institute 505 King Ave., Columbus, Ohio ENTZ, Clarence J. (R) Quebec Iron & Titanium Corp. Box 40, Sorel, Que., Canada .EONARD, Jean (M) 96-24 Corona Ave., Corona ~8, N. Y. (Jean Leonard Ceramics) ~EOPOLD, Jean H. Leopold & Cie. Pfaffenhoffen, (Bas-Rin), France LEO-WOLF, A. L. (M) Carborundum Co., Globar Div. Niagara Falls, N. Y. LEPIE, Myron P. Travis Dr.. Chestnut Hill 67., Mass. L E, Donald A. Bridge St., Roselle Park, N. J. L , Jack M. (S) 1357 Nicholas PI., Ashland, Ky. (Carlyle Tile Co.) LERMAN, Leon (B) Sylvania Electric Products, Inc. 100 Sylvan Rd., Woburn, Mass. LESAR, Albert R. (RI) 509 Woodlawn, Mexico, Mo. (A. P. Green Fire Brick Co.) LESENSKY, Leonard (B) Raytheon Manufacturing Co. Foundry Ave., Waltham 54. )'lass. LESLIE, Ernest R. (R) Korton Co., Worcester 6, Mass. LESSO. HaroTd F. (R) 631 Beechmont Dr. Dearborn Hills, Mich. (Great Lakes Steel Corp.) LESTER, Ronald H. (WJI) 3811 Garrison Blvd., Baltimore IS, :lid. (General Electric Co.) LESTER, W. Ronald (GF) Hartford-Empire Co. Di\'. Emhart Mfg. Co. Hartford 2, Conn. LESZL, Matthias "Smalteria e Metallurgica. Veneta" Bassano del Grappa, Italy LETORT, Marc Yves Centre National d'Etudes et Recherches Ceramiques 3 Avenue Paul Doumer Paris 16, France LETTER, Eugene C. (BJ) Bausch & Lomb Optical Co. . hemical Res. Lab. ochester 2, !\. Y. .!\GOOD, William C. (G) Ball Brothers Co.. Inc .. ~funcie. Ind. LE\'ETT. Peter D. (\\') .\mold Engineering Co., ~Iarengo. III. VOL. :W. :'\0. 10 (lg.')'j) LEVI, Ormonde S. (G) Verd-A-Ray Corp. 615 Front St., Toledo 5, Ohio LEVIN, Ernest M. (B) National Bureau of Standards Di\'. 9.3, Washington 25, D. C. LEVIN, 1. (M) L & L Manufacturing"'Co. 136 Eighth St. Upland, Chester, Pa. LEVIl\E, Irving L. Di) 100 Elm Tree Lane, Syracn,e \), X. Y. I General Electric Co.) LEVY, Dorothy (D) 1212 Lincoln Ave.,' Highland Park, Ill. LE\'Y. Raymond H. (R) 5501 Lynvie\\ :\\e.. Baltinwrc 15. ~id. (:'Iartin Co.) LEWIS, Albert D. ',G) Kimble Glass Co.. Vineland, X. J. LE\\'1S, George T. R. R. 1, Rushville. X. Y. LE\\'IS. Gordon (Bn . Carborundum Co. Research & De\'elopment Di\'. Xiagara Falls. !\. Y. LEWIS, Gordon E. (S1) Glen-Gery Shale Brick Corp. Box 86, Shillington, Pa. LEWIS, J. H. (G) Blue Ridge Glass Corp. Kingsport, Tenn. LEWIS, J. M. (W) Ahingdon Potteries, Inc. 801 N. Main St., Abingdon, Ill. LEWIS, John W., Jr. (R) Dixie Fire Brick Co., Kimberly, Ala. LEWIS, William C. (G) Big Flats, N. Y. (Coming Glass Works) LEWIS, William N. (G) I-T-E Circuit Breaker Co. 601 E. Erie Ave., Philadelphia 34, Pa. LIBBEY-OWENS-FORD GLASS CO. (George B. Watkins) 1701 E. Broadwa)' Toledo 5, Ohio LIBERATORE, Laurence C. (G) Taylor Instrument Co. 95 Ames St., Rochester I, N. Y. LIBERTY GLASS CO. (Frank P. Collins) Collins Bldg., Sapulpa, Okla. LIED. Robert C. (B) Argonne National Lab. Box 299, Lemont, III. LIEDER, Phillip H. (R) 2600 Dogwood Lane, Norristown, Pa. (E. ]. Lavino & Co.) LIEDERBACH, William H. (WI) 202 Prospect Ave., Pewaukee, Wise. (Globe-Union Inc.) LIGON, Elmer R. (SI) W. S. Dickey Clay Mfg. Co. Box 402, Pittsburg, Kans. LILLIE, Howard R. (GF) 191 Delevan Ave., Corning, N. Y. (Coming Glass Works) LIM, Richard H. Y. Box 1039, Alfred, N. Y. LIM, 'lock Lio Box 2004, Ann Arbor, Mich. LIMES, Robert W. (RFI) Allegheny Ludlum Steel Corp. Brackenridge, Pa, Ll:\'. Francis C. M. (G) Continental Can Co., Inc. Hazel-Atlas Glass Di\'. 319 S. Main St.. Washington. Pa. LlXDE1'\THAL, James R. Globe-Union Inc., 900 E. Keefe Ave. ~iilwaukee 1, Wisc. U~DENTHAL, John W. (G) Ohio State university Engineering Experiment Sta. Columbus 10, Ohio LI:\'DQl'IST, C. Alan. Jr. (BI) Box 618, Conneaut. Ohio (Astatic Corp.) Ui\DROTH, Stig A. Svenska Ackumulator AB. ]ungner Oskarshamn, Sweden LI:\DS.-\ Y, Carey E. (R1) :\iles Fire Brick Di\'. ~I exico Refractories Co. 165 E, Park A\'e., Xile5, Ohio LIXDSAY, ]. Gordon (B) Aluminium Labs. Ltd. An'ida, Que., Canada LI:\'DSEY, Ben S. (\\'j :\lil\\'hite Co .. Inc. Box 1503:>, Hom,ton :!O, Texas LIXKHOR:\'. \\'illiam H. (W) Ventura Dr., Danielson, Conn. L-\merican Radiator & Standarrl Sanitary Corp.) LI:\' XE1.L, Rohert H. \ B) Titauiutn Zirconiutll Co. Flemington, !\. J. U;\SEIS, Max Selb/Ba\' Gerhard:Hauptmannweg 9, German)' LINTZ, E. H. (WFI) 42 Heiskell Ave., Wheeling, W. Va. (Wheeling Tile Co.) LINWOOD, Sidney H. (W) Stackpole Carbon Co., St. ~1arys, Pa. LINZ, Arthur (E) 551 Fifth Ave., New York 17, N. Y. (Consultant) LISKE. Jack Z103Y, Carrol Dr., Raleigh, N. C. LITEX, Alexander F. (G) 178 !\orfolk Ave., Swampscott. Mass. (Sylvania Electric Products, Inc.) LITHIUM CORP. OF AMERICA, INC. (Walter M. Fenton) 2560 Rand Tower Minneapolis 2, Minn. LITTLE, John M. (S) 120 S. 28th Ave., Hattiesburg, Miss. (Hattiesburg Brick Co.) LITTLt:TON, Joseph C. (G) 231 Delevan Ave., Coming, N. Y. (Coming Glass Works) LITTLETON, J. T. (Honorary, GF) Coming Glass Works, Coming, N. Y. LIVINGSTON, Charles Q. (R) Armstrong Cork Co., Lancaster, Pa. LIVOVICH, Andrew F. (R) 337 N. Virginia Ave., Hobart, Ind. (Universal Atlas Cement Co.) L & L MANUFACTURING CO. (1. Levin) 136 Eighth St. Upland, Chester, Pa. LLOYD, Katherine (R) Kaiser Aluminum & Chemical Corp. 1924 Broadway, Oakland, Calif. LO, Wing-Cheuk 21 Hardenberg St. New Brunswick, N. J. LOBAUGH, Frank E. (RI) 1052 Sherman Ave., Plainfield, N. J. (Universal Atlas Cement Co.) LOBDELL, Edward M. (G) 2627 Gunckel Blvd., Toledo 6, Ohio (Owens-Illinois Technical Center) LOCHRIDGE, James F. (E) Ferro Enamel de Mexico, S. A. 450 Oriente 171, Mexico 14, D. F. LOCKE, Ralph S. (M) Diamond Springs Lime Co. Box 409, Diamond Springs, Calif. LOEFFERT, (~enrge J. (G) l'nited Can &. Glass Co. Box 90, Ihy\\'ard. Calif. LOEHRKE, Harry F. (G) 423-1 Be\'erl\' Dr.. Toledo, Ohio (Owens-IIJi;lOis Technical Center) LOGAN CLAY PRODUCTS CO. (Barton A. Holl) Box 698 Logan, Ohio LOH, Eugene (B} 815 \Y. Sacramento St. .-\ltadena. Calif. (Consolidated Electrodynamic Corp.) LO!'\DEREE, Joseph W., Jr. (B) 3918 Warner Ave., Louisville, Ky. (Corhart Refractories Co.) RUSTER li'j" I ----------..........J, O~G. Bernard Glaces de BOllS'oi, 22. Boule,ard ~Ialesherbes Paris 8, France .0:\(;. John Y. (G) Solar Aircraft Co. 2200 Pacific Highway Diego 12, Calif. . uther L. (G) s-Corning Fiberglas Corp. ase Ave., :\ewark, Ohio .0>':":;. Robert, Sr. (E) American Porcelain Enamel Co. 12~5 E. Keating .he. Muskegon 36, 1\lich. .OKG. Robert R. (W) Kational Tile & ~lfg. Co. 1200 E. 26th St., Anderson, Ind. .Q~G, Russell E. (Rn .-\merican Eucan,tic Tiling Co. llln" Cannon .-\\"e., Lan~dale. Pa. .n:'\ t .. \\" ayne ~1. (\\. I ~~ ract1~e China Cnrp. 2lJ ll(1 ("1>tIrt ~t.. ~~'racuse, X. Y. .O);(;E:-"ECKER, Robert J. nil) 46 James Rd., Broomall, Pa. (Fonte Mineral Co.) .O:'\\.FRITZ. Robert I\:. (RI) Clearfield Clav I'rodnct~ Co. B"x 74t1. Cleartielrl. Pa. _O:'\GI:'\O, Ted E. (M) American Clay Forming Co. E. Duncan St" T,ler. Texas LONGWELL. Burton' (E) Republic Steel Corp. 14.?0 Republic Bldlt.. Cleveland I, Ohio LOO~IlS. David G. (~!) Loomis Engineering & :\lfg. Co. R. R. 46. Caldwell. X. J. LOREY. Frederick D. (GI) R. R. I. Hickling Heights Corning. :-i. Y. (Corning Glass Works) LOREY. G. Edwin (B) Dept. of Ceramic Engineering 4 001 of Mines & Metallurgy a, Mo L , Alfred G. (B) Paterson Ave" Paterson. :-i J. (Keadott Co., Inc.) LOUDEN. R. H. (WI) McGean Chemical Co. Midland Bldg.. 101 Prospect Ave. N. \\'. Cleveland 15. Ohio LOUGHRIDGE. Frederick A. (G) IlJ Kosciusko St.. Peabody. :\Iass. ISylvania Electric Products. Inc.) LOUTHAN MANUFA.CTURING CO. IFred A. Layne) Box 781 East Liverpool, Ohio LOVE. L. G. (G) National 14 ime & Stone Co. First National Bldg.. Findlay, Ohio 1.0VEL\XD. Edward \\'. (M) 5114 7lJth St .. :'\ orth Bergen, :-i. J. (Preferred Plastics. Inc,) LOVELL, George H. B. Silwood Ceramics. Box 152 Bergvlei, Johannesburg, South Africa LOVEr,BACH, J. Glaceries de Saint R"ch S. A. SO. rue du Luxemhourg Brussels. Belginm LOVETTE. Paul V .. Tr. (R) R.R. \, Painted P~st. N. Y. (Corning Glass \\'orks) LO\\'. Earl C. (51) Box 46, Logan. Ohio (Straitsville Brick Co.) LO\\'E. Edwin C. IR) 405 Sarah St .. Chippawa, Ont., Canada I:'\nrton Co) ' George K. (RI) . aries Taylor Sons Co. ights,Rockefeller Bldg., Rm. 210 ayfield at Lee. Cleveland 18, Ohio LOWE. William S. (R) A. P, Green Fire Brick Co, 1018 E. Breckenridge St., Mexico. Mo. VOL. ;~H. ~u. 10 (1\),-)1) LO\\ER. Clarence G. (S I Kew Bethlehem Tile Cu. 311 Lafayette St., K ew Bethlehem, J'.J LO\\ER. David H. Box .!OC' .-\lfred. X. Y. LOWER, Lloyd C. (5) 227 Washington St. Kew Bethlehem, POl. (New Bethlehem Tile Co.) LOWER. Lloyd, Jr. (SJj :'\ew Bethlehem Tile Co. Kew Bethlehem, Pa. LO\\'R.\:':CE. Rohert T. (\\') Jackson Tile :\Iallufacturin!!; Co. Bnx 2006, Jacksnn. :\li,-s. l.nz\xo. Jaime IG) \' idrier; \Inrnerrey. S..\. Colombia:': n. .?66 ~I onterrey. :'\. L.. \! "xico Ll'B.\LI:':. In,in IRI Rriti~h Indt1~trie'" Corp. SO Shore Rd .. Pun \\a,hingt"".:'\ Y IXC.-\S. Howard R. (C) Owens-Illinois Technical CeUlel' liOO :'\. \\'",twood .-\ve. Toledo i, Ohio LUCAS, Joseph M. (W) 1431 Broad Blvd. Cuyahoga Falls, Ohio (U. S. Stoneware Co.) Lt:CEI\:. Tohn R, (M) 5 I B';shey Rd., Pittsfield, :\lass. (General Electric Co.) LUCIER. Arthur E. 704 Runnymerle Rd .. Raleigh. :'\. C LUoOOWICI. Johann W. Carl Ludowici K.a.:\. Co. Jockl/rim Rheinnfalz. \Vest-Germ~ny IXD\\'IG. Davirl W. (GI) Pittsburgh Plate Gl:1ss Co. One Gatewar Center Pittsbur!l'h 22. Pa. IXDWIG. Urban W, (G) 232 Peach Orchard. Dayton 9. Ohio (Vnivis Lens) LVEDERS. Roland (M) 3241 Bradford Rd. Cleveland Heights 18. Ohio (Ferro Corp.) LUHRS. Millen E. (G) Lihhey-Owens, Fnrd Glass Cn. 1701 E. Broadwav. Toledo. Ohio LUKS, Daniel W. (WI) Star Porcelain Co. Muirhead Aw:.. Trenton 9. N. J. LFLL. Stanley E. (RI) 83,8 Park Ave .. \\'oreester 5. Mass. (Bav State Ahrasive Products Co.) U::'\AK. Thomas E. (WI) Glohe-enion Inc .. Centralab Div. 900 E. Keefe Ave .. Milwaukee 1. \\'isc. LUND. H. Howard (5) 44 S. Elmwood Ave .. Palatine. 111. (Armotlr Research Foundation) IXXD. L. Howard (5) 254 South St.. East Palestine. Ohi" (Central Commercial Co.) IXXD. ~'el"in 5 nil 426 E. State St.. Alliance, Ohio I \.eneral Color &: Chemical Co .. Tuc.) IXXD. Randolph .\. (Rn 1717 \\'. 105th 5t .. Chicago 4.1. Ill. Il'nite,1 States Steel Corp.) U'XDE. \fan'in 245 E Third St.. \\'at,,,",'ille. Calif LUSHER, Geralrl H. (R) Norton Co .. 5905 Pacific Blvd. Huntington Park, Calif. IXX. John H. (R) H aveg 1ndustries. Inc. 000 \.reen hank Rd. Wilminltton 8. Del. LYLE, Aaron K. (GF) 21 Cumberland Rd. West Hartford 7, Conn. (Hartford Empire Co .. Di,-. Emhart Mfg. Co.) LY\IAX. Donald R. 302 Cherry St.. Clearfield. Pa. I.Y.'\(l!. Et:gene D. I\\'J l"in.sit, of lI1inois Dept. of ceramic Engineering 204 Ceramics Bldg .. l'rbana. Ill. I.Y:'\CH. James F (R) Battelle ~Iemorial Institute 505 King A'e .. Columbus I, Ohio I.Y\CH. I"h" F. I. \V I 1II.!1, \\'a,hing:,)n ElI,t! .. nak !'arh. 1II. t LilldlH.~rg EngirH'crltlg C\,. \ LV:'\SA \. AGE. Walter F. (G I 210 Arnold Ave., Port AJlt-~"ny. P". I. Pittsburgh Corning Corp. \ L\ (1X. 10hn B (Si .-\cn;e Brick Co .. Denton. Te"as LYO:':. Kenneth C. IGF) .,57 E \\'a,hinr::lon St, Du"k:rL. Itul. ,Ball Brothers Cn.lnc.) l.Y(i~S. ClitT"rd T. 1\\') 08~S B(\\\n~at1 Bhd., D::db~ -':11, Texas I Trinity Ceramic Snppl\ C. LYO:'\5. S C. (\f) Georr::ia Kaolin Co. Dn' Branch. Ga. l.YTLE, Jack A. (BI) 308 E. Green Tree Rd :\!ilwaukee 17, Wise. (AlIen,Bradley Co.) 1.YTLE. W. O. (G) Pittshnrl/h Plate Gla.. Co Research Lab., Creighton. Pa. 1. YTTLE. Frobisher T. (W) 1031 Findley Ave .. Zanes,ille. Ohio (Mosaic Tile Co.) Me ~Ic,-\DOO. D. Parker (M) J. \1. Huber Corp. 100 Park .-\"e.. Kew York. :'\. Y. McALLISTER. Christopher (GI) Box 281, Clarksburg, W. Va. (Pittsburgh Plate Glass Co.) :\lc:\LPIXE. Kenneth B. (G) General Electric Co" Large L"111p Dept. Incandescent Lamp Advance Enr::r. ~~31) ~e1a Park, Cleveland 12, Ohio :\lcASKILL, James I. (W) 311 King St. W. Kingston. Ont., Canada I Frontenac Floor & Wall Tile CO. l.I'1.) \lcAVLEY. James W. (G) 2334 Sherwood Rd., Toledo, Ghi" (Libbe"-Owens-Ford Glass Co.) ~!cBR.-\yER. Robert D. Bn" 4276. State College Sta. Raleigh. X. C. :'.lcBREEX. Kenneth L. (\\') Bo" 1~f>f>. Richmon,1. Calii. I.-\merican-Standard) :\!cBVRXEY, John W. (SF) 1543 K. Falkland Ln. Silver Spring, Md. (Consultant) :llcm:RNEY. William C. (0) R. R. 5. Eastbrook R,l.. Kew Ca_tle. Pa. (Shenango China, Inc.) \lcC\ T\;. Kenncth B. (R) Wilbur B. Dri\'er Co. 1875 :\lcCarter Hwy. Newark 4, N. J. :-1 cC .... \1rI1 0:'\. James '11', (M) Dent. of :-lines, Parliament Bldgs. Vie'nria. B. C. Canada :-1"C.... XN. D \1. (WI) Akr"n Porcelain Co .. Akron 14. Ohio MeCA ~C\. Sidney \\1 (El) Pfaudler Co. 1000 West AYe., Rochester 3. N. Y. ~lcC.'\RTT. Kenneth C. (W) I ~08 Delaware Ave .. New Castle, Pa. Il'nh'ersal-Runtlle Corp) ~rcCI. \I\'. Lnui, R. IS) En, i2. Palmer. Texas I Barr"n Brick Co.) ~h'CL.'\\'E. ,Tames W. (SI) Bnx 508. Toronto, Ohio I Peerless Clay Corp.) :llcCLELL:\:'\D. Roland H. (WI) Globe,l'nion Inc .. Centralab Di\'. 000 E Keefe Ave .. Milwaukee. Wisc. R'I:'TER l;f) I t I I ! I .1 cCLlRE. Lt. Cliiton ~L (RJ) Box 99. Bryan Air Force Base Bryan. Texas l'COLLO~I, Perry C. (RT) American Ref ractories & Crucible Corp., Xorth Hayen, Conn. l'COX.\CGHA. Wayne H. IS) 0 Corp .. Box 1656 Canton 30. Ohi" :c 'ELL, G. F. \ \\"1 osaic Tile Co., Zanesville, Ohio cCOR~I.\CK, James S. t RJ) Corning Glass ".orks Refractories Di\. ('ornin~. X. Y. .cCOR~L\CK, Kenneth J. IG) 717 (olima Dr .. Toledo 9. Ohi" I O\\etb-Illinoi, Technical Center I [cbOR~[ [CK, John ~l. t G) .IS27 Richard; Rd. Tolello 7, Ohi,. (Xaniloa (orp.) rcCOR~lICK, Stewart \\'. (RT) Corhart Refractories Co. 1600 W. Lee St., Louisyille, Ky. rcCOY, Xelson (\\') X elson ~lcCoy Potten' Co. Rose\ille. Ohio - ,rcCOY, NELSON, POTTERY CO. (Kelson McCoy) Roseville, Ohio .lcCREERY, George L. (W) 393 Highland Ave., Wadsworth, Ohio (Ohio Brass Co.) .lcCREIGHT, Louis R. (R) Genera[ Electric Co. 3[98 Chestnut St., Philadelphia, Pa. .[cCULLOt.:GH, James D. (R) Babcock & Wilcox Co. 161 E. 42nd St., ~ew York 17, N. Y. ,lcCUNE, Samuel E. (R) United States Steel Corp. Gary Works Res. Lab. 99I. Gary, Ind. \{cDANEL, Donald W. (W) McDanel Refractory Porcelain Co. 510 Ninth Ave., Beaver Falls, Pa. \o1cDANEL, Melvin W. (W) 2, Eastvale Rd. er Falls, Pa. Danel Refractory Porcelain Co.) \[cDAXEL. Sumner W. (BJ) R. R. 2, Beaver Falls. Pa. (McDanel Refractory Porcelain Co.) McDANIEL, L. L. (R) Phelps Dodge Corp. Morenci Branch, Morenci, Ariz. ~[cDER~10TT, James J .. Jr. (G) 136 William St .. Xe\\' York 38, X. Y. (Consultant) ~lcDONALD, C. H. (S) West Bros. Brick Co. 6600 Sheriff Rd., K. E. Washington 27, D. C. McDONALD, E. F. (EI) Ingram-Richardson Mfg. Co. Beaver Falls, Pa. :\lcDONALD, Howard A. (R) 12202 E. 19th Ave., Spokane 64, Wash. I Kaiser Aluminum & Chemical Corp.) McDOUGAL, Taine G. (WFI) 1117 South Dr . Flint 3, Mich. and Ha'penny House Somerset Bridge, Bermuda ;\icDOW ALL, Ian C. New Zealand Pottery & Ceramic Research Assn., Inc. Private Bag, Lower Hutt, New Zealand ~!cDO\VELL. J. Spolls (RF) Webster Hall Hotel 44[5 Fifth Ave., Pittsburgh 13. Pa. I Harbison-Walker Refractories Co.) McDOWELL, Samuel J. (BFI) 52 Elm Ave., Metuchen, N. J. (American Lava Corp.) _ OY, R. H. (M!) ernational Clay Machinery Co. 45 Bolander AYe., Dayton I, Ohio McEVOY, Rohert J. (RI) 2234 Berdan, Toledo 13, Ohio 10wens-Corning Fiberglas Corp.) McGEAN, Ralph L. (E) :\lidland Bldg., 101 Prospect Ave., K.W. Cleveland IS, Ohio (McGean Chemical Co.) ~lcGEE, Thomas D. (R) Iowa State College Ceramic Engineering Dept., Ames, Iowa ~lcGINNIS, R. A. (W) American Lava Corp. Cherokee Blvd. & Mfgrs. Rd. Chattanooga 5, Tenn. ~fcGOHAN, G. William (E) Armco Steel Corp., ;\liddletown, Ohio ~!cGOLPIN, William C. (S) Rm. 403, 57 Bloor 'St., W. Toronto 5, ant., Canada (Xatco Clay Products, Ltd.) ~[cGRA\\', Delford A. (G) 4117 Graceway, Toledo 6, Ohio (Owens-Illinois) ~[cGREGOR, Frederick B. (M) Great Lakes Foundry. Sand Co. 720 l'nited Artists Bldg. Detroit 26, Mich. ~1c(;REGOR. Jimmie R. 1604 X. \\'. Third :he. ~[ineral \\'ells, Texas ?>lcHOSE, Donald G. (M) Such Clay Co., Box 47 Perth Amboy, N. J. McHOSE, M. M., Jr. (M) Such Clay Co., Box 47 Perth Amboy, N. J . ~lcIL\VAIN, Eugene M. (R) 3513 Huron Dr.. Louis\'ille, Ky. (Corning Glass Works) McINTOSH, C. M. (W) Radio Materials Corp. 1708 W. Belmont Ave., Chicago 13, Ill. McI~TOSH, Harold W. (G) American Window Glass Co. Fanners Bank Bldg. 20th Floor Pittsburgh 22, Pa. ;\lcIXTYRE. G. H. (EFT) Kational Spectrographic Labs., Inc. 6300 Euclid Ave., Cleyeland 3. Ohio ~icKAIG, W. Wallace (R) Cumberland Steel Co. Box 28, Cumberland, Md. McKANE, John W. (R) 257 Chesterfield Ave. Glen ElIvn. Ill. (Foremo~t Foundry Supply Co.) ~lcKEAXD, In-in J. (WI) Minneapolis-Honeywell Regulator Co. Research Center 500 Washington Ave. S. Hopkins, Minn. :-'lcKEE, \\'illiam D .. Jr. (B) 1017 Ridj:(e Rd.. Lewiston. ~. Y. (Carborundum Co.) McKEEN, Richard D. (WI) Sweet Hill Rrl .. Plaistow, X. H. (Western Electric Co.) McKEOWN, J, Duncan (R) Box 137 Burnet Woods Station Cincinnati 20, Ohio (Carborundum Co.) ~1cKEO\\'"" Thomas H. (M) 21\4 Middlesex Ave .. Metuchen. X. J. (E. 1. du Pont de Xemours & Co.) :-'!cKTXLEY. Rohert F. Box 205. Alfred. X. Y. :-'lcKIXXEY, Harold G. 750 Fowler St., N. W., Atlanta. Ga. McKINNIE, J. R. (R) Ideal Chemical Products, Inc. 3813 Hoke Ave., Culver City. Calif ~lcKINNIS, Charles L. (GI) Owens-Corning Fiberglas Corp. Glass Res. Lab., Newark, Ohio ~lcKFLLA, George W., Jr. 4711 17th K. E., Seattle 5, Wash. ~lcL\CHLAX, Eugene K. (R) 462 Southmont Bhd., Johnston, Pa. (Bethlehem Steel Co.) McLAIN WORKS. REFR. DIV. H. K. PORTER CO., INC. ,La\\'son E. Mason) Wells\ille. Ohio McLAREN, Henry D. (E) Ferro Enamels (Canada) Ltd. Box 37, Oakville, ant., Canada ~lcLAREK, John (:\1) Box 75, East Liverpool, Ohio (Bell Research Labs.) ~[cL:\REX, ~lalcolm G. I R) Paper ~lakers Importing Co. H S. Second St., Easton, Pa. ;\lcLAUGHLIN, John L (E) 564 S. Craig PI., Lombard, Ill. (Allied Porcenell Inc.) ~!cL\l'GHLIX. Je-sel'h K. 1\\'1) Red Wing l'otterib, Inc. Red \\'ing, ;\[inn. McLAUGHLIN, William H. (R) Alsey Brick & Tile Co., Alsey, Ill. ~[cLE.\X. \\'illiam E. (13) Electra ~[ant1iacturing Co. ~oo X. 21,t. Tndependence. Kans. ~lcMAHOX, John F. (XFI) Alfred, N. Y. (State Uni\'ersitv of Xew York College of Cera~ics, at Alfred Vniv.) ~lc~I.\HOX. John F .. Jr. (G) 645 S. Cannon AYe., Lansdale, Pa. I Lansdale Tube Co.) McMASTER, Harold A. (G) Permaglass, Inc., Box 195, Sta. A. Toledo 5, Ohio McMt.:LLEX, Tohn C IR) 9325 River~hore Dr. Niagara Falls, N. Y. (Carborundum Co.) McMURDIE, Howard F. (BF) National Bureau of Standards Washington 25. D. C. ~fc~nJRTRY, Carl H. (RJI) 72 Maple Ave., Wellsville, N. Y. (State University of New York, College of Ceramics) McNAMARA, E. P. (WFI) 73 Ritchie Ave., Cincinnati IS, Ohio (Cambridge Tile Mf~. Co.) ;\[cXAMARA. Edward P .. Jr. (RJ) Box 907. Alfred. X. Y. (Corning Glass \\'orks) ~lcXAMARA. Richard B. (R) 11 Janet St.. Buffalo 15. K. Y. (Electro Refractories & Ahrasi\'es Corp.) },[cKAt:GHTOX, Ronald R. (R) Central Technical Library Consolidated }'lining & Smelting Co. of Canada, Ltd., Trail. B. c., Canada ~fcQl'.\RRIE. :-'[alcolm C. (B) 124 E. Lytle _\ye .. State College. Pa. I Pennsyl~'ania State l'nhersit~) McRITCHIE, Frank H. (R) Mellon Institute, 4400 Fifth A\e. Pittsburgh, Pa. McRORY, Glenn L. (M) New Jersey Zinc Co. 1007 National City Bank Bldg. Cleveland 14. Ohio ~lcT.\GG.'\RT. G. Don (R) Corning Glass Works, Corning, N. Y. McVAY, T. N. (BFI) 10 Oakwood Court, Tuscaloosa, Ala. (U. S. Bureau of Mines) ~lc\\'.\LTER. H. G. IR) Laclede-Christ\ \\'orks. Refr. Di\. H. K. Porter Co., Inc. 2000 Hampton AYe., St. Louis 10. ~lo. McWILLIAMS. Robert J. (EI) Pfaudler Co. (Elyna Div.) Taylor St., Elyria, Ohio M MacALPINE. William M. (G) 357 E. Main St .. Somen'iIle, N. J. (Johns-Manville Research Laboratory) ),[ac.-\ \OY. Thomas C. (G) 2.14 Chemunj:( St .. Corning, X. Y. I Corning Glass "'orks) ~I.\CC:\LOCS. Joseph \\'. 4855 l.'niyersity Ct. Xiagara Falls, X. Y. HOSTER 71 --,----------------- A~I,J#....s.. acDOKALD, James E. (R) ~lcFeely Brick Div. General Refractories Co., Latrobe, Pa. acDO:\ALD. R. \\'. l\\'I) FloriJa Tile Industries. Inc. Rox 451, Lakeland, Fla. ;ACER, W. E. (M) orundum Co., Globar Div. ra Falls, ~. Y. la O!\', Richard John G. Stein & Co., Ltd. )Ianuel Works :\r. Linlithgow, Scotland IACHLAX, G. R. (G) Owens-Corning Fiberglas Corp. :\ewark. Ohio lacI:\TYRE, Donald J. (W) R.R., Piffard, K. Y. (Lapp Insulator Co., Inc.) ,I.'\CKASEK, Edward (EF) li22 19th St .. K. \\'., Apt. 702 \\.ashington 9, D. C. (Porcelain Enamel Institute) \IACKENZIE, James United Steel Companies Ltd. Research & Development Dept. Swinden House, Moorgate Rotherham. Enl1lnnd MACKLIN CO. (Richard O. Lane) 2917 Wildwood Ave., Jackson, Mich. ~lacLEOD, John United Fireclay Products, Ltd. 140 W. George St. Glasgow. C. 2., Scotland MacNEIL, S. Ambrose Demerara Bauxite Co., Ltd. Mackenzie, British Guiana MacRAE, Alexander J. (M) Bowers Battery & Spark Plug Co. Box 1262, Reading, Pa. MacRAE, John (G) Fiberglas Canada Ltd. Box 309, Guelph, Ont., Canada ~IAC ZURA, George (R) 3815 Highland Rd. t St. Louis, Ill. . coa Research Ln h. ) EN, Robert C. (B) 315 Pim St. Sault Ste. Marie, Ont., Canada (Algoma Steel Corp., Ltd.) ~IADDOCK, A. M. (W) R R, Washington Crossing, K. J. (American-Standard) MADSEN, Leif Egi! Box 4208. Sandakervn 109/III Oslo, Norway (A/S Den KorskeSlipeskivefabr.) MAGAZINE, Arnold L. (G) CBS-Hytron Corp. 100 Endicott St., Danvers, Mass. MAGID, H. S. (WI) American Radiator & Standard Sanitary Corp., Box 907 Trenton 5, N. J. ~fAGLIOCCA. Theresa S. (G) Corning Glass Works, Corning. :\. Y. MAGNUSON, V. E. (M) Western Feldspar Milling Co. Box 671, Salida, Colo. MAGOR, James K. (E) United States Steel Corp. Applied Res. Lab., Monroeville, Pa. MAGUIRE, Edward A., Jr. 1335 E. Price St .. Philadelphia 38, Pa. MAGUIRE, Samuel G., Jr. (B) United Clay Mines Corp. 101 Oakland St., Trenton 6, N. J. MAHlER, Lois W. (D) 4535 Harding Blvd. Baton Rouge 7, La. ( Southwestern Louisiana Institute) OXEY. Da"id L. (RJ) I Burncoat St., "'orcester, Mass. (~orton Co.) MAHONEY, Frank B. (E) Richmond Radiator Co. Box Ill, Metuchen, N. J. VOL. 3G. "" o. 10 (l ll.Yi') ~1.'I.1 S.\C. l;eorge \\'. (S) I nsulating Refractories Co .. Inc. Box J22. San Rafael, Calif. ~1.'I.ITR.'I.. Pranab K. tni,ersit, of l'lah, 220 ~lines Bldg. Salt Lak~ City, l"tah MAJESKE, Joseph (G) T. C. Wheaton Co., ~lillville, K. J. ~lAUl, Arthur T. (RI) lJJ Beverly Rd., "'orcester 5, )Iass. (Korton Co.) ~lALOOTIA:\, ~larkay H. (B) 405 Mohegan Ave., 1\ew London, Conn. (C.S.!'\". Underwater Sound Lab.) MALVERN BRICK <t'TILE CO. (George B. Eyerly) Box 415, Malvern. Ark. MALYSIAK, Chester (G) 1027 Hickory, Perrysburg. Ohio ( Owens-I1linois) MANDEL, Charles J. (WI) Willette Corp. of N~w Jersey Codwise Ave. & Reed St. New Brunswick, N. J. ~I:\XDLE. Richard ~l. (G) Davison Chemical Co. Box 488, Pompton Plains. X. J. MANN, George H. (G) Lake Salubria, Bath, N. Y. (Coming Glass Works) MAKl\I:t\G. Franklin K. (\\') American Radiator & Standard Sanitary Corp., 6920 Franklin AYe. New Orleans 22, La. MANNING, R. Douglas (D) Harker Pottery Co. East Liverpool, Ohio MANOUSEK, Miloslav Delnicka 27 Praha VII, Czechoslovakia MANRING, William H. (G) Calumite Co.. Box 151 Hamilton. Ohio MANSFIELD SANITARY, INC. (Perry E. Draper) Perrysville. Ohio MANZ, Oscar E. (B) Box 516, University Station Grand Forks, N. D. (University of North Dakota) MARCH, Joseph W. (S) Nova Scotia Technical College Halifax. N. S.. Canada MARCVS. Leon (BI) 5.-\ Onondaga Pky. Apts. Li"erpool Rd.. Li,erpool. X. Y. (General Electric Co.) MARCYN. Chester A. (E) 2302 S. Kensington Ave. Westchester, III. (Chica~o Vitreous Corp.) MARGOLIS, David (R) 39 Glenwood Ave., New Rochelle, N. Y. (Fish-Schurman Corp.) MARGRAVE, John L. (B) University of Wisconsin Dept. of Chemistry, Madison 6, Wise. MARK. Stanley D., Jr. (R) 1592 Love Rd., Grand Island, N. Y. (Carborundum Co.) ~I:\RLO\\'. James A. (\\') Crane Ltd.. Box 70 Montreal. Que.. Canada ~IAROXEY. Dorothy :VI. Box 457. Alfred. X. Y. 1\1 ARQeIS. John E. (\\') Pemco Corp.. Res. & De,'. Lab. 5601 Eastern Ave., Baltimore 24. Md. MARSHALL, Darwin (B) Electro Metallurgical Co. Metals Research Labs. Box 580, Niagara Falls. N. Y. )IARSH:\LL. Leslie H. (R) 1.. H. ~far.hall Co . Box 41'.57. Sta. B. Columbus 2. Ohio ~fARTIN, Albert E. (M) Almar Specialty Machines Ltd. Maple. Ont., Canada :VfARTI:\. Clyde (\\') Clay-Burn Tile Co. Box 61t<. Palestine. Texas ~IARTIX, Francis W. (G) 101 Hornby Dr., Painted Post, N. Y. (Corning Glass Works) MARTIN, James K. (M) 1068 Helen Ave., Lancaster, Pa. (Posey Iron Works, Inc.) ~IARTlX, John R., Jr. (W) ~Ionongahela Power Co . no Charles St., \\" ellshurg. \\'. Va. c..~1.\RTI.". L,ng Sr. (5) ~Iartin Brick Co. BllX i'Ll. Coleman. Texas :-IARTIN, Leonard A. (W) Martin Ceramic Supply Co. 890 I Rainier Ave., Seattle 8, \\'ash. :-lARTIN, Ralph H. (WI) Vernon Kilns 2310 E. 52nd St., Los Angeles 58. Calif. :-LA"RTll\, Wesley G. (EFi 6054 N. Kent Ave. ~Iilwaukee Ii, Wise. (A. O. Smith Corp.) :-IARTIXO, Paul D. (SJ) Cannelton Sewer Pipe Co. Cannelton, Ind. :-lARTI:\SEK, Rodney E. (M) Timken Roller Bearing Co. 1835 Dueber AYe., S. W. Canton 6, Ohio ~L\RTZ. Joseph:\. (Rl 5J5 Riverside AYe.. Wt"lIsville. Ohio ()lcLain Works. Refr. Div. H. K. Porter Co.. Inc.) MARVEL, Irvin L. (R) Johns-~lanville Corp. 742 )liners Balik Bldg. Wilkes-Barre, Pa. ~fARVIN, Charles G. Box 787, Alfred, N. Y. MARWAHA, Kidar N. Burn & Co., Ltd. Refractory & Ceramic Works Box 13, Jabalpur 1, India MARX. I.e Roy J. (S) Denver Terra Cotta Co. 135 Tejon St .. Denver 23, Colo. MARYLAND GLASS CORP. (L. C. Roche) 2147 Wicomico 51. Baltimore 30, Md. MASKILL, William Webb Corbett, Ltd. Coalboumhill Glass Works Stourbridge. \Vorcester, England )lASOX, Cecil R, Jr. 879 Courtenay Dr., N. E. Atlanta 6. Ga. MASON CITY BRICK & TILE CO. (c. F. Garland) ~lason City. Iowa ~lASOX. Frank (\\') Thomas \Vorks Delta-Star Electric Div. H. II:. Porter Co .. Lisbon. Ohio ~L\SOX. Lawson E. (R) ~lcLain Works. Refr. Di,. H. K. Porter Co.. Inc. \....ellsville. Ohio MASSENGALE, Gordon B. (Rt) 553 Audubon Ave., Pittsburgh 34. Pa. (Harbison-Walker Refractories Co.) MASSON, R Porzellanfabrik Langenthal A. G. Langenthal, Switzerland MATCHULAT, John G. (R) Buffalo Rd., R.R. 2 East Aurora, N. Y. (Electro Refractories & Abrasives Corp.) MATEJCZYK, John F. (E) 7506 Trevanion Ave .. Pittsburgh 18, Pa. (0. Hommel Co.) MATERIALI REFRATTARI SOC. p.AZIONI 0 Charles ~Iathon) Via Elia Lombardini 13 Milano 744. Italy MATHEXY, Richard E. (5) R.R. 7, Box 307, Birmingham, Ala. (Natco Corp.) MATHER, Mrs. Katharine (B) Waterways Experiment Sta. Drawer 2131, Jackson, Miss. ROSTER 7:) --------II'I!II!!!'I_!!lII!I!II ...W3 Zltt X uti '1' I I ! I . 1;1 "" \THI.-'l.S, Simao Rua Fernandes Borge" 544 (\'ila Paulista), Sao Paulo, Brazil (l:nj"ersidade de Sao Paulo) .-'l.1HJ..\SEN, O. E. (S) Federal Seaboard Terra Cotta Curp. Box 301, Perth Amboy, :\. J. AISON, George W. (G) Castlewood Dr., Toledo 13, Ohio ble Glass Co.) AT ESO};, Roblin M. (R) Aluminium Limited Sales, Inc. 630 Fifth Ave., New York 20, ~. Y. ATHIEU, Louis A. Parra Mantois. II Chemin de Ronde Le Vesinet (S&O) France ATHO~, J. Charles Materiali Refrattari Soc. p..'\zioni Via Elia Lombardini 13 Milano 744, Italy :.-'l.TSO~. Frederick R. (GI) 723 Jackson St., State College. Pa. (Pennsylvania State University) [ATTESO~, Gilbert D. (W) Engineering Library Scintilla Div., Bendix Aviation Corp. Sidney, N. Y. L\TTnIOE, Paul T. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5. Ohio IATTISON, William F., Jr. (GI) RR. 3, Lawson Dr., Madison, Conn. (Libbey-Owens-Ford Glass Co.) lAU, K. T. (5) Gaspro, Box 2454, Honolulu, Hawaii IAUPIN, Addison (RI) 721 Yale Ave., Terrace Park, Ohio (Charles Taylor Sons Co.) IAUPIX. Floyd M. (R) 327 Jefferson Rd., Mexico. Mo. (A. P. Green Fire Brick Co.) .IAURER, James A. (E) 5519 N. Lake Dr., Milwaukee 11, Wise. ,fAURER, Robert D. (G) Corning Glass Works, Corning, N. Y. >l:.R,H.W. rsingel 68. Delft, Holland yal Delftware Manufactory) ,IAVOR, Wilfrid (E) Ferro Enamels (Canada) Ltd. Oakville, Ont., Canada ,IAXSOX. Elwyn L. (M) Box 55, Lawndale. Calif. 'lAY. L. F. (5) Standard Ultramarine & Color Co. Huntington 18, W. Va. \fAYER, Walter S. (W) Mayer China Co. Box 561, Beaver Falls. Pa. \fAYFIELD, Manville J. (WI) 1827 Auburndale Ave. Chattanooga 5, Tenn. (American Lava Corp.) ~IAYNARD, Frederick H. (G) Corning Glass Works 1 Jackson St. Wellsboro, Pa. MAYS, George A. (5) Box 68. Niles. Calif. (California Pottery Co.) ~IEDERT. Warren C. (GI) 5320 Melvin Dr., Toledo 14, Ohio (Owens Illinois ) ~IEEK.\. Edward I SI I 1.1\4'." E Hananl St. Glendale 5. Calif. (Gladding. McBean & Co.) ~fEGLES, John E . Jr. (G) 7 Washington St., Box 148 Cokeburg, Pa. (Corning Glass Works) :-'IEID. William T. (R) .I. Bartlel!. Ill. 'ndherg Engineering Co.) 'G, Gerald S. 4i128 Lorraine Dr. Salt Lake City, Utah ~IEI~DL. Joseph J. 601 \\' l'ni,e"it)". Urbana. Ill. ~IEl:\KE:\. Robert H. (B) 29 Myrtle Ave. ~ orth Plainfield, N. J. (Bell Telephone Labs.) ~IEIRESO:\!\E, Arthur C. (G) . 700 Village Dr., Columbus 14, Ohio (Kimble Glass Co.) :'IELOY, C. L. (RI) Res. Dept.. Rm. A406 Bethlehem Steel Co., Bethlehem, Pa ~IENG, Edwin R (R) National Carbon Co. Box 6087, Cleveland 1, Ohio ~IENGSHOL, Clarence O. (E) American Radiator & Standard Sanitary Corp. 1089 Essex St., Richmond, Calif. )'I:\:\IE. Alan J. f>4lJ Fulton. l'al0 Alto. Calif. :'IE:\TZER. ~Ierle J. 4(1(, E. Springfield ,\ \'e. Champaign, Ill. :'1 ER HL E R. \\':lllace I \; I 5(, \\'. Corydon St .. Hratlford, Pa. I C"rning Glass \\'ork .;) MERCER, James W. 3.?~6 Lambeth Circle, Dora\'ille, Ga. )'IERCK. \\'alter J. (RI) 25 Addison Dr., Short Hills, K. ]. I :'Iinnesota ~lining & Mfg. Co.) :\IEREDITH. Edward J. (RI) Box 1533, Birmingham 1. Ala. (Universal Atlas Cement Co.) MEREDITH, Neil F. (RI) Box 281 G, R.R 2, Tiffin, Ohio (Basic, Inc.) MERIWETHER, B. Corbin (W) Deena Products Co., Arlington, Ky. MERLIl''1, Ing. Francesco Colonnata, Florence, Italy MERRLUl, Jack G. (WI) 727 N. Wildwood, Mundelein, Ill. (Titanium Alloy Mfg. Div., National Lead Co.) MERRIMAN, Seth G. (G) 2722 Lincolnshire Blvd. Toledo 6, Ohio (Owens-Illinois, Kimble Div.) MERRITT, Clarence W, (WFI) Box 464, Alfred, N. Y. (State University of New York College of Ceramics, at Alfred Univ.) MERRITT, Lester M. (XI) 654 Wilson Ave., Columbus 5, Ohi" (Industrial Commission of Ohio) ~IERRY, E. B., Jr. (51) Merry Bros. Brick & Tile Co. 415 Masonic Bldg., Augusta, Ga. MERWIN, Byron W. (W) Parkway Rd., R. R 2 East Liverpool, Ohio (Hall China Co.) :\IERZ, Kenneth M. R. R. 1, N iagara Pk~. Xiagara-on-the-Lake, Ont., Canada :\IESSIER, Donald R Box 757, Alfred, N. Y. MESSIMER, Laverne A. (GI) Holophane Co., Newark, Ohio METAL & THERMIT CORP, (George C. Betz) 100 Park A,e. New York 17, N. Y. :\IETZ, G. F. (M) 816 Cypress Rd., Vero Beach, Fla. (Consulting Engineer) :'IETZ, Gilbert F .. Jr. 535 E. ~inth A\,e., Tarentum, Pa. METZGER, A. J. (RI) Dept. of Ceramic Engineering Virginia Polytechnic Institute Blacksburg, Va. METZGER, H. C. (M) E. E. Zimmerman Co. 1704 Keenan Bldg., Pittsburgh 22, Pa. ),1 El'LI. Lt. William P. \\'right Air Development Center High Temperature Materials Sect. \\'right-Patterson AFB, Ohio MEXICO REFRACTORIES CO. (c. A. Smith) Better Refractories Bldg. Mexico, Mo. MEYER, George W. (G) Glenshaw Glass Co., Inc. Glenshaw, Pa. ),IEYER. G. Robert I G'I 313 Daniel, St . Toledo '" Ohio I LJ11bey-(l\, ens-Ford Glass Co.) :.tEYER, L. S. (S) Hydraulic- Pre" Brick Co. 705 Olive St., SI. Louis I, ~lo. ~l EYER. \\'illiam \Y. (\\', 611 General Duff Dr. Falls Church. \'a. :s(to. TariN C(Jnlll1i:,,~i(In I MEYERHOFER,E. A.' . :\teYerhofer & Co., Forch,trasse 2 Zu~ich 32. Switzerland ~IEYER-SCHOLER, Hans Carl Spittelerstrasse 1 Liestal, Switzerland (Tonwerk Lausen AG) ~IEYSEL, John ]. Refracton Ltd. Zurieh c Genferstra,se, Zurich, Switzerland ),IICHAEL, Frank L. (El) 319 Norbourne Blvd., St. Matthews Louisville 7, Ky. (General Electric Co.) )'lICH.-'l.EL, Harold ]. (E) ~H6 St. :\largarets Lane Columbus 13. Ohio (~orth .-\.merican _-'l..-iation. Inc.) ~lICHALSKI. Casmir (E) 3~62 \V. 31st St.. Cle"eland 9, Ohio MICHEL, Howard (E) Porcelain Enamel, Inc. 80 S. Dover, Denver IS, Colo. MICHEL, S. Etablissements G. Devineau 26, rue Lafayette, Paris 9", France :\IICHELOTTI, Joseph E. (EI) Alcoa Club, Xew Kensington, Pa. (Aluminum Co. of .-'l.merica) MICHENER, John William (G) Research Laboratory Owens-Corning Fiberglas Corp. Newark, Ohio MICKWITZ, Alexander von (B) 701 11ain St., Latrobe, Pa. (Stupakoff Div., Carborundum Co.) :\IIDDLESWARTH, Earl T. (G) 7 Moody St.. Amesbury, 11ass. (CBS-Hytron) ~IIDDLETON, George J. (M) L. H. Butcher Co. 3628 E. Olympic Bl\'d. Los Angeles 23, Calif. MIDGETTE, \Villard B. (M) Eagle-Picher Co., Chemical Div. 1501 Oliver Bldg., Pittsburgh 22, Pa. :\flKE, Thomas ~L (Gn Owens-Illinois Technical Center 1700 X. \\est\\'ood A\'e. Toledo 7. Ohio :\IIKLOl:CICH. Frank (S) Hutlts\'ille Brick & Tile Co.. Inc. Box 53. Hunts\'ille, Ala. ~IIL:\~I. Helio 4216 Jennings Rd .. C1el'eland 9, Ohio MILDWOFF, Ben (G) Bent Glass Works, Inc. 85-25 126th 5t Richmond Hill 18, N. Y. :\lILLAR, N. S. C. Frit Factorv Radiation Group Sale~ Ltd., Grappenhal Works Warrington. Lanes., England MILLER, Alan D. 542 E. 83rd St., Seattle, Wash. :\11 LLER. Alan R. 3007 Xicol ,he.. Oaklan,1 2. Calif. :\IILLER. Ben K. <R) ~(iller )-lining Co., Box 6, Mexico. :\10. MILLER, B. L. (W) Royal China, Inc., Sebring. Ohio :\IJLLER, Boyd C. (5) Miller Equipment Co. Box 1566, Salisbury, N. C. :t I II ROSTER loJ I -_Ji ER, EJmund H. (SI) 'JIle Ihick Co., :\lill'~l" Tex"" ER, E. R. (W) .ashinglon Porcelain Co. 'illow St. \Vashington, ~. J. ER, Fred W. (R) ranklin }Olanor, 114 Franklin St. d Apt. B-2, Morristow.n, N. J. - durn Co.) ant E. (E1) erro Corp., 4150 E. 56th St. 'leveland 5, Ohio .ER, Harold (E) 736 J\. Talman Ave., Chicago ~S. Ill. Ohmite Mfg. Co.) .ER, Harold D. (M) S9 Circle Dr., Plandome ~lanor .ong Island, N. Y. B. F. Drakenfeld & Co.. Inc.) .ER, Henry E. (R) :hicago Wheel & Mig Co. Ill! \\. :\lunroe St .. Chi"ag-" 4". III LER. 1l00'ard L. (;1, Lihbey,Owens-Ford Glass Cu. Box 4:78. Charleston, \\'. Va. LER, James L. (R) 131 Peach St., Park Forest, TIl. ("orton Co.) LER, John B. (MI) Third St., Lewiston, K Y. (Titanium Alloy Mfg. Div., National Lead Co.) .LER, John W. (W) New Castle Refractories Co. New Castle, Pa. .LER, Lt. Marlin, Jr. (RJ) 02283i09. Hdq. 1\:\('0:\1Finance & Acct. APO i5i. 1\ew York. N. Y. LLER. :\Iaurice. Jr. 1:\11 484 E. Beechwold AYe. Columbus 14, Ohio LLER, Ralph E. (G) 365 Glen Ave., Elmira, N. Y. (Corning Glass Works) L.RObert A. (GF) arlisle St., Tarentum, Pa. urgh Plate Glass Co.) LLER. Russel A. (R]) 251 E. Rockland St. Philadelphia 20. P~. (Luken" Steel Co.) iLLER, R. W. (G) Columbia-Southern Chemical Corp. One Gateway Center. Pittsburgh 22, Pa. ILLER, Vincent P. (M) Miller Pottery Engineering Co. 2300 Palmer St. Swissvale, Pittsburgh 18, Pa. ILLER, W. D. (G) Owens-lI1inois, Box 1019 Oakland 4, Calif. ILLER. William A. (RJ Carborundum Co., Faleoner, N. Y. 'ILLER. William A. 306 E. Madison St., Gihsonburg, Ohio :ILLIC.... ~, Kenneth L. (R) Aluminum Co. of .... merica 230 Park AYe. New Y"rk 17. N. Y. lILLIGA!':, Chester E. (R) Electro Refractories & AhrasiYe~ Corp 4814 Lorna Vista A\'e. Los Angeles, Calif. lILLIGAN, Lowell H. (B) !':orton Company, One K"w Bond St \\" orcester 6, Mass. ,1ILUKEN, Edward C. (51) 4H W. Korth Ave. East Palestine. Ohio (Katco Corp.) 'fILLIKEN, Frank H. (5) Bower~ton Shale Co., Bowerston. Ohio '.KEN. William \1. \'l'land :\f u~eum of ..\ rt 1511 East Bh ,I.. Cle"elallli ('. Ohi" ~IILL1KEN. William l. (SI) Bux 23. B()Wer~l()n. Oh,:) (l'. ~. :\rm~ I :-llLL:\IAI', ~athan (~I) .1. :\1. Huber Corp.. Huber, Ga. :\lILLS. G. Alexander (Bl Houdry l'roce,' Corp., Box 4.27 \1 ar<;us Hook, Pa. ~111. I.S. R. (;cral,l I B i t ;enc:ral Elt:l'tric Cll. \" allecitu .. _\ tllll1 ic Lab. B"" ~~h. l'lea"antun, Calii. MILTON BRICK CO" LTD. (D. T. Green) Box 554 ~l ilton, Ont., Canada :\111.1' (> '.;. H C. 1:\1) .\t1H:rican CY3nanlili Cu. 311 R"ckd~lkr \'laza"N'e\\ York. '.;. Y. :-1I'\.\RD. Richard ..... (B) Hrnoktield Engineering Lab" .. Inc. :~n ('u"hing St .. ~toughtun, :\Ia:,,, :-IINER. Re"inal<l R. \ Rl :10 \\'"o,lhri,lge .\\'e .. \{l'tul'hen. \ I CarhOfundunl Co.-j \IINK, John D. (G) R: R. 2, Dunkirk, Ind. (Arl'lstrong Cork Co.) \[l~NICK, L. John (R) 306 Boyer Rd., Cheltenham, Pa. (G. & W. H. Corson) \ll~SHALL, John B. (R) Kaiser Aluminum & Chemical Sales, Inc 3 Gatm,'ay Center, Pittsburgh 22, Pa. :\II~TON, G. Z. (Gl) Pittsburgh Plate Glass Co. Research Lab., Creighton, Pa. MISCERAMIC TILE I R. E. Hormhergl Box 1070, Oe\'elan'l, :\01 iss. :\11 SSB:\CH, George E. (M) :\lorehollse Cowles, Inc. 70i Henry Grady Bldg" Atlanta, Ga. MISSISSIPPI GLASS CO. (Charles J. Youngblood, Jr.) 88 Angelica St., St. Louis 7. Mo. ~1JTCHELL, Lane (BFI) School of Ceramic Engineering Georgia Institute of Technology Atlanta. Ga. :\[ ITCH ELL. Russell G. (W) R. R. I, Dutch Ridge Rd. Bea\'er, Pa. (McDanel RefractOr>' Porcelain Co.) :\UTOFF, Stephan P. (B) General Electric Co., Res. Lab. :\letallurgy & Ceramics Dept. Box 1088, Schenectady, N. Y. ~IJTRA, H. K. (1) 12 A Road East Jomshedpur E.R., India (Tata Tron & Steel Co.. Ltd.) ~IIXER, William G., Jr. (W) 315 W. Lima St., Findlay, Ohio (Radio Corp. of America) MOCHEL, Mrs. Ellen Lunn (G) Corning Glass \Vorks, Corning, K. Y :\[OCHEL, John M. (B) 9i Hillcrest Dr., Painted Post, ~ Y. (Corning Glass Works) :\10CKRIX, Isadore (B) Pennsalt Chemicals Corp. Research & De"elopment Di,. Box 43R8, Che~tnut Hill P. O. Philadelphia 18. Pa. \I0EBl'S, C. R. (~j) l"niled Clay :\Iines Corp. 101 Oakland St., Trenton. N . .T. :\10FFAT, John, Jr. (R) 12255 Miranda St. Korth Hollywood, Calif. (Gladding, McBean & Co.) \IC>fFAT, John W., Jr. (R') Babcock & Wileox Co. 27.'0 Koppers Bldg.. Pittsburgh 19, Pa. :\IOFFETT, Robert A. (RI) Korth American Refractories Co 1012 National City E. 6th Bldg Cleveland 14, Ohio \IOFFJTT, Roy B. 206 Chamberlain St., Raleigh. X. C. \I0GEY, Leona (G) Raytheon ~Ianufacturing CO. oS Chapel St .. Newton, Mass. :\IUII.\NTY, l;aJendra _\:ttn Il' 6 Kalimati RJ., E .. Tatanagar, India (HilHlustan Steel p,t. Ltd.) \IOHL, Helmuth (\\') Fabrica de Loza "La Favorita" S.A. Palma Norte 308, Despacho 312 :\Iexico I, D. F. \IOHLER. '.;eal F. I Sl\ :\liller Equipment C,. Bo" 1066. ~,,\i.-hury. '.; C. ~1()HR . .I. (;ilhert 11~11 oIl Erie ~t.. \\L""hille. Ohio (.-\l1ie,1 Chemical"'" D;e Corp.1 ~IOHR. \\'illia11\ C. '\ll) ~henall~u China. tnc. Shenanl'[o Rdr. DiL. Ne\\ Ca-tlt-. \'a :\10HUN, William A. (R) General Abrasive Co.. Inc. 2000 College A'e .. :\iagara Falls, ~. y )oj( 11., E"ert .-\. lEi Rea :\Ial'[net \\ir" Ci, .. Inc E. Pontiac St .. F"rt \\ayne. Ind. ~IOLLER, J. Aall Porsgrund~ Por>e1aens fabrik Por~~nlnn. ~nn\ay \1()N.-\CK. :\ . .I. Il~} :~7 \lortimer .he.. Rutherford. N. J. (~ewark Colle",. of Engineering-:I ~IONAGLE, William T. (R) Lloyd Ave., Stanhope, N. J. (Reaction Motors, Inc.) :\IONETA, Fausto Via Mambretti 9, Milano, Italy (Ditta Giuseppe Moneta) MO:\G, Lewis E. (R) 8506 Loughborough PI. Chevy Chase 15, Md. (National Bureau of Standards) MONINGER, Richard E. (W) Harding A'e .. East Li\'erpool, Ohio (Wells\'ille China Co.) MONKS, Douglas E. 133 Hillside Terrace, Irvington, K. J. MONKS, J. R. (G) 4714 Harborcl Dr .. Toled" 13, Ohio (Owens- Illinois) :\IO:\ROE. G. DeVon IX}) 20 12 ....Ihambra Circle Coral Gables, Fla. (Ford Motor Co.) :\IONROE, James E .. Jr. (~I) 4284 Done\' St.. Columbus 13, Ohio (Titanium' .... l1oy :\If!l'. Di,. Xational Lead Co) :\IONTAGNO, Antonio M. (E) 69 Glenmont .!\\'e .. Columbus 14, Ohio <Tnland Enlt;neerinll' Co.) \10:-\TEITH. Philip G. (E) 4204 Dolphin R,l.. Loui"'ille 18. Ky. (Chiral'[o \'itr"",,,,' Corp.) :\IONTE:\IAYOR. Ponciano S. (G) ....partado Postal 1081 :\lonterrey. :\. L .. Mexico (Vidriera :\lonterrey. S. A.) \IONTGOMERY. Earle T. (WFl) 12 W. Jeffrev PI .. Columbu~ 14, Ohio (Consulting Enll';neer) \IONTGOMERY, Eldwin C. (Gl) Libbey-Owens-Ford Glass Co. Jewella Rd .. ShrC\'eport, La. MO"TGOMERY, Thomas B. (G) Pittsburlth Plate Glass Co. 632 Ft. Duquesne Blvd. Pittsburgh 22. Pa. ~I OXTGO}oIERY. Wayne C. (\\') ....luminum Co. of :\merica 1501 .... leoa Bldl'[ .. Pittshurgh 10. l'a. :\IOODY, H. Le~lie (0) Hyalyn Porcelain, Inc., Box 460 Hickory, N. C. ~100DY, Willis E. (BI) School of Ceramic Engineering Georg-ia In,titute of Technology Atlanta. Ga. MOOKEY. Edward L. (W) General Laboratory Assoc., Inc. Norwich, :\. Y. MOORE, Carleton B. .,30 1 S. \\'il,on :\\-e., Pasadena, Calif. ROSTER I I --------....,-.:C.I!!!&Q!!I_. &.2.6.II@.'.:_.II..&.I12.2 . . . . . :\IOORE, Charle:- H. I B) P. R. :\Iallory & Co. 30:?9 E. Washington St. Indianapolis 6, Ind. ;'IIOORE, Dwight G. (EFl) :>Iineral Products Di\'ision Kationa! Bureau of Standards 'ashington 25, D. C. ' ~ ,H. t. of Glass Technology niversitv of Sheffield Elmfield, 'Northumberland Rd. Sheffield 10, England :>IOORE, Henry (G) 38 Potter A\'e, West New Brighton Staten Island, K. Y. (Metro Glass Co.) :>100RE, James M. (S) Ashe Brick Co.. Van Wyck, S. ,C :\IOORE. John G, (\\'l 405 E. Poplar St., Robinson :?, Ill. (Case :>Ig. Corp.) ;'II00RE. :>latthew S, Pre,Fab. 241, Clemson College Clemson, S. C. MOORE & MUNGER (Murray Rushmore, Jr.) 33 Rector St. New York 6, N. Y. :>IOORE, Richard S. (Rl) HarbisonWalker Refractories Co. 1800 Farmers Bank Bldg. Pittsburgh 22, Pa. MOORE, Robert E. 812 Orchard St., Rolla, ~lo. MOORE, Robert F. (R) 3345 Forbes St., Pittsbufl;th 13, Pa. (Jones & Laughlin Steel Co.) MOORE, Robert G. Box 3794. Georgia Tech. Sta. Atlanta, Ga. MORAN, J. J. (G) Landis Ave, & Spring Rd. .Vineland, N. J. (Kimble Glass Co.) MILL' N. L. (R) Union Bank Bldg., Bethlehem, Pa. . L. Morell Co.) M :'\A. Alfred (WI) 6 Colbv Ct.. New Ha\'en, Conn. (Elect~o.Ceramics, Inc.) MORESCO. Albert J. 336 Trads #6. Pittshurgh 36, Pa. MORGAX, John C. Jr (G) Libbey-Owens-Ford lola" Co. 1701 E. Broadway. Toledo 5, Ohio ~fORGAK, John M. (W) 42 Laurel Dr.. Scranton. Pa. (General Electric Co.) MORGAN, Raymond W. (R) R. W. Morgan Co., 11695 Woodbine .Detroit 39, Mich. MORGAN, Reginald W. (G) Ball Brothers Co., Inc., Muncie, Ind. MORGAN, Robert A, (WI) Pass &: Seymour, Inc.. Syracuse, N. Y. ~10RGA:'\. Stuart F. (W1) Harbor Rd., Mattapoisett Keck Mattapoisett, Mass. (J. I. Paulding, Inc.) MORGAN, Willard L. (G) 1203 Moundview Ave., Newark, Ohio (Owens-Corning Fiberglas Corp.) :\fORG.\:\. "'. R. (GFI) Sterlinll' Grinding "'heel Co. Box 801, Tiffin, Ohio :\IORK. Gordon E. R. R., ~fcCallsburg. Iowa MORNIN, Bob L. (\\'1) 3885 Pierce, Wheatridge, Colo. (Coors Porcelain Co.) aMORREN, Georges 42 Bd Guillaume Van Haelen est, Brussels, Belgium amant Boart) IS, Ernest D. 15 Irby Rd., Heswall, Cheshire, England (~forgan Refractories Ltd.) \'01.. :;n. ~O. 10 ([\t.')1) :\IORRIS, Frank (\\') 236 Green point .\\e. Brooklyn 22, X. Y. _ (Le\'iton ;'I1Ig. Co.. Inc.) :\IORRIS. George J, CR) .\merican Steel & \\'ire Co. Re>earch Lab., "'i"e ..\\-e. (Ie\'eland 5, Ohio :\IORRIS, Irvine H. (W) Ferro Corp., 4150 E. 56th St. Cle\'eland 5, Ohio ~IORRIS, John L. (W) 14427 Allingham, Norwalk, Calii. (Durochrome Decalcomania Co., Inc.) MORRIS, W. C. (G) 1251 Mayfield Ridge, Cleveland 24, Ohio (Harshaw Chemical Co.) ~IORRISOK, Neil T. (M) Bell Research, East Liverpool. Ohio ~lORRISON, R. F. (M) 384 Gulf Rd., Elyria. Ohio (Harshaw Chemical' Co.) :>IORRISON, Wallace S. (M) Illinois \\' ater Treatment Co, 840 Cedar St., Rockford, Ill. MORSE, Clifford E. (G) Dominion Glass Co., Ltd. Box 190, Montreal, Que., Canada MORSE, George T. (WF) Smooth-On Mfg. Co. 572 Communipaw Ave. Jersey City 4, N. J. MORTON POTTERY CO. (H. W. Rapp, Jr.), 315 W. Jefferson St. Morton, Ill. MORTON, William A. (G) 46 Standish Blvd., Mt. Lebanon Pittsburgh 28, Pa. (Loftu$ Engineering Corp.) MOSAIC TILE CO. (G. F. McConnell), Zanesville. Ohio MOSER, Berthold B. Industria Ceramica, Ltda. Apartado Aereo 4829, Bogota, Colombia :\IOSER. John B. 806 Seward St., Apt. II Evanston, Ill. MOSER, John L. (RI) 1210 Acorn Dr., Dayton 9, Ohio (W. H. Kiefaber Co.) ~WSS, LeRoy L. (El) 3553 Ingleside Rd. Shaker Heights 22, Ohio (Ferro Corp.) MOTSCH, F. R. (G) FosterForbes Glass Co., Marion, Ind. MOULD, Richard E. (G) Preston Labs., Box 149, Butler, Pa. ~WULD, W. J. (W) Steubenville Pottery Co., Box 1030 Steubenville, Ohio ~IOCLTO:\, A. K. (S) 138 Harriett Dr. San Antonio 12, Texa~ (:\. K. Moulton Associates) MOUNT CLEMENS POTTERY CO. (CharIes E. Doll) Mount Clemens, Mich. ~lOl'R:\UD, Paul H. (W) 14 Ingleside Rd. l'pper Montclair, X. J. (Technical Ceramics & Lava Corp.) MOWREY, Fred W. (GI) 108 Rodgers Dr., New Kensington, Pa. (American Window Glass Co.) :\IOYER. Henry F. (G) Libbe\'-Owens-Ford Glass Co. 1iOI E. Broadway, Toledo 5. Ohio ~fUAN, Arnul (B) Pennsylvania State University 23 Mineral Sciences Bldg. University Park, Pa. :\ll'CCIGROSSO, Angelo 4206 Consaul Rd., Schenectady. :\. Y. ~ll'ELLER, Edward E. (BI) School of Mineral Engineering UniveTsity' of Washington Seattle 5, Wash. MUELLER, Ferd A. (R) 1360 Rudd, Canon City. Colo. (Freeman Fire Brick Co.) :\1l'ELLER. lames I. (BFI) Ceramic Engineering Division University of Washington Seattle 5, \\' ash. :\ll'ELLER, John P. (~1) ~fountain Vie.\ Rd., Trenton 8. '!\. J. (~I ueller ~Iachine Co.) :\ll'LL, Lee R. (G) Owens-Corning Fiberglas Corp. Barrington, ~. J. MULLAN, Joseph (5) Champion Brick Co. 7600 Pulaski Highway Baltimore 6, Md. :>fl'LLE~, Willard F. (M) Klinger Heights, State College, Pa. (Curtiss-\\iright Corp.) MVLLER, Gerhard Staatliche Porzellan-~Ianufaktur Berlin Hartmannstrasse 13 (l3a) Selb/Oberfr. U. S. Zone. Germany ~ll'LLER, ~fax (Rl) Basic, Inc., 845 Hanna Bldg. Cleveland IS, Ohio MULLER, Robert Emaillerie de St. Maurice 29, Rue du Val d'Osne St. Maurice (Seine), France MULLIGAN, Edwin F. (E) Jones Metal Products Co. West Lafayette, Ohio MULLITE WORKS, REFR. DIV. H. K. PORTER CO., INC. (Edward L. Bohn) 10 Canal St.. Shelton, Conn. MeLROY, James P. (EI) 965 Lafa)'ette Ave., Buffalo 9, N. Y. (Boys Vocational High School) MULRYAN, Henry (W) Sierra Talc & Oay Co. Box 390, South Pasadena, Calif. Ml'LTER, Robert K. (W) Architectural Tiling Co . Cass & Jackson Sts., Keyport, N. J. MULVANE, O. E. (E) 4138 N. 21st St., Milwaukee 9, Wise. (A. O. Smith Corp.) MUNDY, O. S. (WI) 426 Park Ave., Wheaton, III. (Western Electric Co.) :\1l"RDOCH. K. A. Davey & :\loore Ltd., LockfieJd A\'e. Brimsdown. Enfield Middlesex, England Ml"RGATROYD, John B. Rockware Glass, Ltd., Rockware Ave. Greenford, Middlesex, England MURPHY, Edward ]. (W) Charles B. Chrystal Co., Inc. 53 Park PI., New York 7, N. Y. MURPHY, Harry T. (R) Oimax Fire Brick Co., Oimax, Pa. :\ll7RPHY, Leone P. 1005 S. Lincoln ;\\oe., Urbana, 111. Mt.:'RPHY. Remington M. (W) 7744A Wagner Way LynDewood Gardens Elkins Park 17, Pa. (International Resistance Co.) :\1 t.:' RR:\ Y. Ernest L. (M) Cnited States Ceramic Tile Co. East Sparta, Ohio :\ll'RR:\Y, Frank J., Jr. (M) :\ichols Engineering & Research Corp. 405 Montgomery St. San Francisco 4, Calif. :\llRRAY. Haydn H. (B) Georgia Kaolin Co. 433 :'\. Broad St., Elizabeth 3, N. J. ~nRRAY. John F. (B) 413 Ottawa St., Forest Heights. \\'ashin~ton 21, D. C. I:\a\'al Research Laboratory) ,. ,t ! I" i I if I I \0 I, ; I lIl,Ji )t AY~Louis J. lal Potteries, Ltd., Box 49 ,yerton. Transvaal, South Africa AY, Maurice A. (WI) dding Place, Towaco, N. J. '. G. Corp.) ..\ Y, Maurice J. (B) liyersal Oil Products Co. uin Rd., Des Plaines. II!. ~. bert S. (G) . akenfeld & Co., Inc. 'ashington, Pa. ~.\Y, Thomas F. '3 Rayenel Rd., Clemson. S. C ;ELMAN, H. G. (G) 113 Old Frederick Rd. altimore 29, Md. ::arr-Lowrey Glass Co.) lITT, F. C. (R) Igoma Steel Corp. aull Ste. Marie, Ont'., Canada -\LEX CORP. OF AMERICA Richard A. Humphrey) ox 311, Clifton. N. J. RS, C. H. (R) ftah Fire Oay Co. ;ox 127, Salt Lake City. Utah RS, Charles V. (W) :ljer Co., Three Gatewa\' Center 'ittsburgb 22, Pa. . RS. Thomas J. (G) 224 20th Ave., Altoona, Pa. Sylvania Electric Products, Inc.) RS, Wilbur C. (B) ,ational Cash Register Co. 401 E. EI Segundo Blvd. ~awthome, Calif. :RSON. Martin (W) o,{yerson Tooth Corp. )0 Hamilton St., Cambridge. Mass. :RSON, Richard L. (W) \Iyenon Tooth Corp. 10 Hamilton St., Cambridge, ~Iass. ;DAL, Rolf L. (W) 1460 Painter Circle, Apt. 3 S . .rent, Que., Canada ( on's Tiles (Canada) Ltd.) ~ ung S. Kyai maraw, Amherst District Burma NT, Simon M. K. (5) University of Pennsylvania 3400 Spruce St., Philadelphia 4. Pa. N "lLER. Marion R. (B) 498 Quartz St., Los AI:rmos, ~. ~1. (Los Alamos Scientific Lab.) -;:\N. Harold R. (WJ!) 32 Claremont Ave., Santa Clara. Calif. (Lockheed Aircraft Corp.) {AMURA, H. Henry (B) Armour Research Foundation of Illinois Institute of Technology 3427 S. Federal St.. Chicago 16. III. KAMURA, Yoshikazu Shoko Glass Co., Ltd., 1330, Yamazaki Kamakura City Kanagawa Pref., Japan "CE. Taylor E. (W) Gen. Del.. Wallburg. ~. C. (Western Electric Co.) PIER. John B. (5) 1120 Bass Rd., Macon, Ga. (Cherokee Brick & Tile Co.) POLITANO, Albert (G) National Bureau of Standards Dept. of Commerce Conn. Ave. II: Van Ness St. Washington 25, D. C. RASIMHAN. Malur D. 1.SH. 051, Ceramics Div. husetts Institute of Tech. dge 39, Mass. arold S. mF) Universitv of Cincinnati Ceramics' Dept., Cincinnati 21. Ohio ~ASH, Herbert (W) Southern California Gas Co. Box 3249, Terminal Annex Los Angeles 54, Calif. NATCO CORP. (R. A. Shipley) 327 Fifth Ave., Pittsburgh 22. Pa. NATIONAL ENGINEERING CO. SIMPSON MIX-MULLER DlV. I James Stewart) ~4Q \\'. \\'ashington Bin!. Chicago 6. Ill. NATIONAL INDUSTRIAL SAND ASSN. (V. P. Ahearn) ~lunsey Bldg., Washington 4, D. C. NATIONAL LEAD CO. ' (Roy Dahlstwm) III Broadway. :\ew York (0. ~. Y. NATIONAL LIME AND STONE CO, (I.. G. Love) First National Bldg. Findlay, Ohio NATIONAL REFRACTORIES DlV. MEXICO REFRACTOR.IES CO. I R. .-\. Hitchin,), 226 S. 16th St. Philadelphia 2. 1'a. NATIONAL RESEARCH CORP. (Philip J. Clough) 70 Memorial Dr. Cambridge 42, Mass. XAlTDOT, Jacques Cerabati, 10 Rue Pasteur Pont Sainte Maxence (Oise), France :\.\YI.\S, Louis (BFIJ General Electric Co.. Research Lab. Box 1088, Schenectady. N. Y. :\AYRATIEL, Hans Rosenstrasse 9, LauflPegnitz Bavaria, Germany (Sembach & Co.) NEAL, James E. (R) 164 Sandford Ave. North Plainfield, N. J, (Johns-Manville, Inc.) NEALON, Terence P. Edward Curran Engineerinlr. Ltd. Cardiff, Wales :\EDREBERG. Roy E. G. (\\"J) 215 Searle St .. Zanesville, Ohio I Mosaic Tile Co.) NEEL, Lee, III Box 2546, Georgia Tech" Atlanta, Ga. NEELY, Homer E., Jr. (G) 404 E. 11th Ave., Tarentum. Pa. (Pittsburgh Plate Glass Co.) XEFF, Edward D. (R) Box 205, Templeton. Pa. (Harbison-Walker Refractories Co.) XEFF, John M. (5) Armour Research Foundation 10 W. 35th St., Chicago 16, Ill. :\EFF. Russell C. (R) Olive Hill, Kv. (General Ref~actories Co.) NEIMAN, Robert (R) Whip-Mix Corp.. Inc. 411 W. Avery Ave .. LOlli~vi1le 8. Ky. ~ELLEY, John W. (G) 206 Theadore Rd .. :\ashyil1e. Tenn. I Ford Motor Co.) NELSON, Forrest W. eEn A. O. Smith Corp, 3533 N. 27th St Milwaukee 1. Wisc. ~ELSO:\. James A. (5) University of JI1;nois 204 Ceramics Bldg.. l'rhana. Ill. ~ELSOX. James W. (XJ) :15.14 S. Third E. Salt Lake City. nah ~ELSON. Karl E. 'lO:l E. Michigan .\,eo, Urhana. Til. ?\ELSON, Richard P. 8520-32nd Ave .. N. W. Seattle 7, Wash. :\ELSON. Rohert E. (G) 20 Sprinl( St .. Seneca Falls, K. Y. (Sylvania Electric Products, Inc.) :\ELSON, Robert T. (R) Columbia-Geneva Steel Co. Box 510. Pro\'o, Ptah :\ELSOK, William I. (G) 118 Mary St., Binghamton, N. Y. (Solvay Process Div., Allied Chemical & Dye Corp.) ~EREXSTO~E. ~[arc lW) 3g9 Princel<,n Dr.. Pittsburgh 35. 1'a. (\Vestinghnuse Electric Corp.) XETTER, William S. (G) Keystone Abrasiye Wheel Co. Gregg & Hammond Aves., Carnegie, 1'a. ~ETZSCH, Erich Maschinenfahrik Gebrueder l\etzsch Werkstrasse 19 Selb (Bayerll), Germany :\EW, Ryland J. (S) National Sewer Pipe Ltd. Box 36, Oahille, Ont., Canada :\E\\'ARK, Frank F. (W) Aluminum Co. of America 1450 Terminal Tower Cle\'eland 13. Ohio "E\\'ARK, Martin (M) Simonds Abrasive Co. Tacony & Fraley Sts. Philadelphia 37. Pa. NEWBOLD GENERAL REFRACTORIES, LTD., Ga\'ey Sl Mayfield. N. S. W .. Australia :\EWBOLD. Ronald B. 577 E. 5400 S .. ~{urray. Utah NEW CASTLE REFRACTORIES CO. (R. W. Rowland) New Castle, Pa. XEWCOMB, Rexford. Jr. (Rn 915 Dodge, Lake Geneva, Wise. (RX Chemical Co.) NEW JERSEY PORCELAIN CO. 0. M. Gilfillan) Box 908 Trenton 5. N. J. NEWKIRK, Terry F. (B) General Electric Co. Power Tube Dept. Schenectady, N. Y. NEWTON. Avery C, (R) The Refractories Institute First National Bank Bldg. Pittsburgh 22, Pa. ?\ICHOLSON, Albert H. (D) Federal Glass Co. SIS Innis Ave., Columbus 7. Ohio XICHOLSO:\. Kenneth C. (R) 2440 ~iagara A,e. Nial(ara Falls. N. Y. (Carborundum Co.) ~ICOLAS. Charles E. (R) Libbey-Ow'ens-Foro Gla~s Co. Box l'O'l1. Shre\'eport, La. NIELSEN. H. Bach (M) Nichols Engineering & Research Corp. 70 Pine St., New York 5, N. Y. :\IELSEN, Thomas H. 406 W. Oregon, Urbana, 111. '0.NIEMAN. A. H. (G) Ohio Lime Woodville. Ohio ~IKLEWSKT. B. K. Main Enamel Mfg. Co., Ltd. 'TOthie Works. Angel Rd. E<lmonton. London, N. 18. England NILES FIRE BRICK DIV. MEXICO REFRACTORIES CO. I Carey E. l.inosay) InS E. Park AYe .. Xiles. Ohio NIPPON TOKI KAISHA, LTD. (Tlln Isagawa) #1. Nnritake~hinmachi. Ki~hikll. Kagoya, Japan :\ISULA, Chester A. (R) 716 Main St.. Riverton, N. J. (Simonds Abrasiye Co.) NIXEN, Da"id (r.) CBS-Hytron. Kent & \Varren Sts. Newburvport. Mass. ,,[YOGI. n. 1'. c/o 1\Ir. S. 1'. \';yol!'i. 4 Ali"ore R,l. Calcutta 2i. \\'est Benl(al. ln<1ia (MIS Bengal Enamel Works, Ltc!.) ~OBES. Freoerick L Carborundum Cn.. Lt,!.. Traffon\ Park Manche.rer 1i. Engl"n,\ RO!'TER Sl ., I ,;' ,;: I :lj!il; l~ - -------- ~_".Ii.421 . .2 . .s._..s} lLES, Eugene L. (EI) 3714 Torrington Ave., Cleveland 34, Ohio (Ferro Corp.) ~LES, Melvin A. (R) Louisiana Polytechnic Institute Dept. Petroleum Engr., Ruston, La. :K, Charles J. (R) _- Son Co., 9'16 Engineers Bldg. d 14, Ohio ) iti Dept. of Applied Chemistry Faculty of Engineering Nagoya University Chikusa-ku, Nagoya, Japan E, James T. (5) 411 Madison Ave., Brookville, Pa. (Hanley Co.) HLE, Richard C. (51) Claycraft Co. Box 866, Columbus 16, Ohio LAN, William F. 9 Somerset Lane, Holden, Mass. RANTE, Nicholas J. (W) Box 30, Star Route, Latrobe, Pa. (Stupakoff Div., Carborundum Co.) 'ROBERG, Martin E. (GF) 134 E. Fourth St., Coming, N. Y. (Coming Glass Works) tRDGREN, Harry Aktiebolaget Gustavsbergs Fabriker Gustavsberg, Stockholm, Sweden >ROMEYER. Rudy L. (5) Valley Brick 6: Tile Co., Box 353 Mission, Texas )RDQUIST, Clarence E. (I) Two E. Dayton Dr., Fairborn,.ohio )RDQUIST, Lawrence E. (B) Comell-Dubilier Electric Corp. 1605 Rodney French Blvd. New Bedfoni, Mass. JRbYKE, J.. S. (MF) Hammond Lead Products, Inc. 40 E. Main St., Carnegie, Pa. JRMAN, Tom C. (W) Atb-Tex Ceramics, Inc. 41o 92, Athens, Texas DEAU, Pierre (D) Hutchison St. ontreal 18, Que., Canada ORRIS, Alan W. .167 Station Rd., Wylde Green Sutton Coldfield, Warwick, England (Doulton Research Ltd.) ORRIS, Charles R. (W) 4024 Diehl Ave., Cincinnati 36, Ohio (Charbeaux Pottery) 'ORRIS-THERMADOR CORP. (Edgar H. Freeman),. 20118 E. Valley Walnut, Calif. iORTH AMERICAN REFRACTORIES CO. (Robert A. Moffett) 1012 National City E. Sixth Bldg. Oeveland 14, Ohio . .JORTHWESTERN GLASS CO. (Edward S. Campbell) 5801 E. Marginal Way, Seattle' 4, Wash. WRTON, Charles L., Jr. (RF) Babcock & Wilcox Co., 161 E; 42nd St. New York 17, N. Y. 'lORTON CO. (0. J. Whittemore, Jr.) Worcester 6, Mass. 'lORTON, Frederick H. (BFI) Dept. of Metallurgy Div. of Ceramics Mass. Institute of Technology Cambridge 39, Mass. ~ORTON, George R. (EJ) Pfaudler Co., Res. Lab. 1000 West Ave., Rochester, N. Y. ~ORWALK, Marshall H. (GJ) 76 Catlin Dr., R. R 2 Beaver Dams, N. Y. . ming Glass Works) 00, J. Nelson (Life, X) red University, Alfred, N. Y. N O ,Anton R (B) 8140 Merrill Ave., Niles 31, Ill. (Great Lakes Carbon Corp.) VOL. 36, No. 10 (l95i) NOWAK, John M. (B) Bell Aircraft Corp., Box 1 Buffalo 5, N. Y. NOWELL, Dorroh L., Jr. (5) 202.. Broad St., Augusta, Ga. (Merry Bros. Brick & Tile Co.) NUSSBAUM, Theodore 170 Ellis Ave., Irvingtoll, N. J. NYQUIST, Roy A. (G) 3650 Beechway Blvd., Toledo 14, Ohio (Libbey-Owens-Ford Glass Co.) OHIO LIME CO. (A. H. Nieman) Woodville, Ohio OHLIGER, Lewis P. (G) 209 Ridgeview Dr. East Rochester, N. Y. (Bausch & Lomb Optical Co.) OH:\SORG, Roger W. Box 1049, Alfred, N. Y. OH~YSTY, Basil (RJ) 9201 Cherokee Rd., :\. E. Albuquerque, ~. ~1. (Sandia Corp.) o OLCOTT, J03eph S. (G) Corning Glass \Yorks. Corniug, ~. Y. OAKEY, Paul D., Jr. OLD HICKORY CLAY CO. 705 N. Main St., Blacksburg, Va. (Lee F. Powell) OAKLEY, Harry D. Box 271, Paducah, Ky. 217 Robinson O'LEARY, W. J. (R) North Tonawanda, :\. Y. 24 Seminole A\'e., Claymont, Del. OAKLEY, W. W. tGF) Box 35, Corning, N. Y. (Corning Glass Works) (E. 1. du Pont de Nemours & Co.) OLE~CHUK, Daniel L. (R) 1300 Laird A\'e., Aliquippa, Pa. OARE, Henry A. (\\') (Jones & Laughlin Steel Corp.) 2655 Sharon dale Dr., ~. E. OLIYER, D. :\. Atlanta, Ga. (Georgia Sanitary Pottery, Inc.) B. S. A. Group Research Centre ~1ackadown Lane. Kitts Green O'BANNON, L. S. (E) Birmingham 33, England 2239 Farleigh Rd., Columbus 21, Ohio OLlVER, John C. (E) (Battelle Memorial Institute) Porcelain Enamel Institute OBERSCHMIDT, Leo E., Jr. (I) 1145 19th St., N. W. Harbison-Walker Refractories Co. Washington 6, D. C. 1800 Farmers Bank Bldg. OLIVER, John H. (G) Pittsburgh, Pa. \Vestinghouse Electric Corp. OBERST, Clair R. (MF) Electronic Tube Div. Industrial Ceramic Products, Inc. Horseheads, N. Y. 965 W. Fifth Ave., Columbus 8, Ohio OLlVERIO, William (G) OBERST, Robert B. (WJI) Rolland Glass Co., TIox 232 323 Weymouth Lane Clarksburg, W. Va. Columbus 4, Ohio (Industrial Ceramic Product~, Inc.) O'BRIEN, Neil H. (S) OLSE~. Eric (0) R. R. 63, Dnndee, 111. (Haeger Potteries, Inc.) B. F. Drakenfeld & Co. Box 519, Washington, Pa. O'BRIEN, William F. (E) Hope Rd., Shrewsbury, N. J. (American Potash & Chemical Co.) O'CONNELL, Thomas B. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Onio O'CONNOR, Frank 25 Boulder Lane, Levittown, Pa. O'CONNOR, Jerry B. (M) 1205 Edgewood Ave., Apt. B-3 Trenton 8, N. J. (0. Hommel Co.) O'DELL, Harold L. (W) Hamilton Porcelains Ltd. 38 Elgin St., Brantford, Ont., Canada ODOM, Paul R (M) 2566 Nancelon Circle, Macon, Ga. O. M. Huber Corp.) OESCH, Robert B. (S) 202 Baker St. Box 846, Hender~on, Texas (Henderson Clay Products) OLSEN, John M. (G) E. I. du Pont de Nemours & Co., Inc. Electrochemicals Dept. Wilmington 98, Del. OLSEN, Rangwald S. (EI) 1137 Grant St., Evanston, Ill. (Armour Research Foundation) OLSON, Hjalmar Aktiebolaget Gustavsbergs Fabriker Gustavsberg, Sweden OLSO~, Ole A. (R) 5 Wrenwood Ct. \\' ebster Gro\'es 19. Mo. (Laclede-Christy Works, Refr. Div. H. K. Porter Co., Inc.) O'~EILL. John H. (\\'J) H6 Lenox Rd., Brooklyn, K. Y. (Sperry Gyroscope Co.) ONODAGA POTTERY CO. (R H. Pass) 1858 W. Fayette St., Syracuse I, ~. Y. ORAVEC, Joseph A. 3731 N. Newland (S) Ave., Chicago 34, m. ORBACH, Harry K. (B) OESTERLE, Henry (E) Roesch Enamel & Mfg. Co. W. Main & N. 24th Sts. Belleville, III. OESTERLE, Robert A. (E) 11 Glen Grove, Belle\'iI1e, m tRoesch Enamel & Mfg. Co.) Fluor Corp. Ltd. 12000 E. Washington Bhd. Whittier, Calif. ORDWAY, Fred (B) Portland Cement Association Fellowship National Bureau of Standards Washington 25, D. C. OGDEN, D. P. (S) Ogden Engineering Co. Box 218, Ottawa, 111. OREFRACTION, INC. (Albert L. Kreuer) 7425 Thomas St. Pittsburgh 8, Pa. OGDEN, ElIsworth P. (RF) Box 348, Granby, Colo. (Harrop Ceramic Service Co.) OGDEN, William D., Jr. (RI) Mackeyville, Pa. (North American Refractories Co.) ORMSBY, Walter C. (W) National Bureau of Standards Washington 25, D. C. ORR, David B. (EJ) RR. 2, Oneonta, N. Y. ORTEPIO, Salvatore (W) i: !; I~ ; 1\1 O'HAGAN, Hugh F. (M) 214 Eagle Point Blvd., Erie, Pa. (Minneapolis-Honeywell General Ceramics Corp., Crows Mill Rd. Keasbey, N. J. ORTH, Howard S. (W) l.I 'Ii", Ii Regulator Co.) Industrial Ceramic Products, Inc. OHIO BRASS CO. (J. J. Taylor) 965 W. Fifth Ave., Columbus 8, Ohio Barberton, Ohio ORTH, Howard S., Jr. (W) OHIO CLAY CO. (Norman E. Denison) Box 1776, Cleveland 5, Ohio 236 Fairway Dr., Columbus, Ohio (Industrial Ceramic Products, Inc.) II J_______....._ R.O.ST.ER_83_. lRTMAN, Curtis D. (W) A C Spark Plug Div. General Motors Corp. 1300 N. Dort Hwy., Flint 2, Mich. >RTMAX, Fred B. (RFI) 1560 Stone Canron Rd. Los Angeles 24, Calif. (Gladding, McBean & Co.) l.EDWARD, JR., MIC FOUNDATION . Carruthers) 1445 Summit St. Box 146. Sta. A, Columbus 1, Ohio )RTON, Mrs. Edward, Jr. 39 W. Torrence Rd., Columbus, Ohio )RTOX, Harold S. (G) West Penn Power Co. Cabin Hill, Greensburg. Pa. )RZANO, Michael J. (SI) Claycraft Co. Box 866, Columbus 16. Ohio )SBORN. Elburt F. (B) College of Mineral Industries Pennsrlvania State University University Park, Pa. )SBORN, Walton O. (R) North American Refractories Co. Water St. Lock Haven. Pa. )SBORNE. David G. LemingtoD Glass Works Ltd. LemiDl'ton Newcastle-on-Tyne 5. England lSTRANDER, Eugene C. (G) . Kopp Glass. Inc. Box 8255. Swissvale. Pittsburgh 18, Pa. )STRANDER. Van R. (B) Endeveo Corp. 27 E. California St. Pasadena, Calif. lTLEY, J. D. (S) Johft B. Kelly Inc. of Penn. r720 Cherry St., Philadelphia 3. Pa. )TRHALEK. Joseph V. (B) Wyandotte Chemicals Corp. Wyandotte. Mich. lTTAWA SILICA CO. (George A. Thornton) Box 437 Ottawa, I1J. lTlErge H. (S) . Jackson Blvd., Chicago 4. I1J. sultant) )TTO. William H. (G) Owens-Coming Fiberglas Corp. Newark. Ohio )TTOSON. Axel (Gl) 4300 Highland Ave. Shadyside. Ohio (Imperial Glass Corp.) )WEN. Frederick E. (R) Electrical Refractories Co. East Palestine. Ohio )WEN, J. D. . R. Fowler Ltd., Fitzroy St. Mamckvi{le. Sydney, N.S.W., Australia lWENS-CORNING FIBERGLAS CORP. (A. C. Siefert) N..wark. Ohio lWENS-ILLINOIS (W. D. Miller) Box 1019. Oakland 4, Calif. )WENS-ILLINOIS (E. W. Summers) Technical Center 1700 N. Westwood Ave., Toledo 7, Ohio lWENS. James S. (W) : Champion Spark Plug Co., Ceramic Div. 8525 Butler Ave., Detroit II, Mich. )XLEY. Charles A. (W) 1508 Park St. Robinson, I1J. (Case Mfg. Corp.) p 'ACHL, Margaret (D) University of North Dakota Ceramics Dept. Grand Forks, N. n. ~ACIFIC CLAY PRODUCTS (John D. Fredericks) - Box 2178, Terminal Annex Los Angeles 54. Calif. ' . N , Willard D. (WI) n M. Knowles China Co. 'ell, W. Va. )ADFIELD. Ralph C. (R) 2990 Avon Rd., Bethlehem, Pa. (Bethlehem Steel Co.) lOL. 36. :\0. 10 (HI.>7) PAFF. John A. (G) Willson Products Di\. Ra)'-O-Vac Co., Reading, Pa. PAFFORD, Ray W. (SF!) "Acme Brick Co. Box 425, Fort Worth 1. Texas P:\L:\DlXO, Albert E., .Jr. (BJ) Raytheon Mfg. Co., Res. Di\'. \\!altham 54, Mass. P:\DIER, Delos M. (G) 4401 Jackman Rd., Toledo 12, Ohio (Delos M. Palmer & Associates) PALMER, Rufus N. (M) 476 Broadmoor Ave" Pittsburgh 34, Pa (Consultant) P:\LMER, Willard E. (SI) i68 X. Cross SI. Xewcomerstown, Ohio (Clay City Pipe Co.) P.\LClIERI, Victor R. IE) Box 33. Kenmnre ~ta. Boston 15. Cllass. I Fe11\\ ai, Inc.) P:\LClIOL'R. Hayne, III (BII 3046 Lewis Farm Rd .. Raleigh. X. C. (American Lava Corp.) PAXGELS. Alfred A. Villeroy & Boch G.m.b.H. Keramische Werke Luebeck-Daeni<chburg, Germany PA~GELS, Heinz J. (W) Mosaic Tile Co. Pershing Rd., Zanesville, Ohio PAPER MAKERS IMPORTING CO.. INC. (Charles Brian) 44 S, Second St., Easton. Pa. PAPIER, Harry (S) Natco Corp., Box 267, Cordova, Ala. PAPPIS, James 433 Brookline Ave. Boston IS, Mass. PAQUlX, Pol Societe Francaise de Ceramique Sen'ice de Documentation 23, rue de Cronstadt, Paris XV, France PARCEL, Martin W. (W) Robertson Mfg. Co. Box 848, Trenton 5. N. J. PARIKH, Xiranjan M. c/o Mr. M. G. Parikh "Palmera"-3A Altamount Rd. Bombar 26, India PARKER. Glidden M., Jr. (0) Glidden Pottery. Inc., Alfred, N. Y PARKER, Harry (Bl) 308 ~fan'in Rd .. Sih'er Sprinll'. ~Id. IXational Bureau of Standards) PARKER, Henry F. (G) Pittsburgh Plate Glass Co. Creill'hton. Pa. PARKER, James W .. Jr. (S) 7217 Shakespeare Rd .. Columbia, S. C. (Guignard Brick Works) PARKER. Leon (G) H. I. Thompson Fiber Glass Co. 1733 Cordova St., Los Angeles 7. Calif. PARKER, Raymond W. (S) Alliance Clay Product Co. Box 746, Alliance, Ohio PARKIXSOK. Robert E. (E) Kawneer Co. 1105 X. Front St.. Kiles. ClIich. PARKISOK. Robert G. 1613 12th St .. Charleston. Ill. PAR~IAX, Donald W. 1419 "H" St., Renton, Wash. PARMER. Jess H., Jr. (G) Owens-Illinois. Technical Center 1700 K. Westwood .'he. Toledo 7. Ohio PARXHAM, H. General Refractories Ltd. Central Research Labs. Sandy Lane Worksop, Xotts. Enll'land P.\RRY, William D. t D) Philadelphia ~Iuseum School of Art Broad & Pine ~ts.. Philadelphia. Pa. PARSON, James A. (WI) 6217 Broadwar, Indianapolis 20, Ind. (Vitroseal Corp.) PARSONS, Douglas E. (S) Building Technology Di"ision National Bureau of Standards Washington 25. D. C. PARSONS, J. R. (R) Chicago Fire Brick Co. ,S,7531 S. Ashland Ave .. Chicago 20, III. !'.\SCHAL, Forrest .\. Box 280. Siler City. X. C I:\Ianufacturers' Agent I PASK, Joseph A. (XFIl Division of Mineral Technology t:'ni"ersity of California Berkeley 4, Calif. PASS, J. S. (W) Pass & Seymour. Inc., Soh'ay Sta. 50 Boyd A\"e., Syracuse Q. "'. Y. I'.\:'S. R. H. 1\\') Onondaga Potter" Co, 1~58 \\'. Fayette St .. Syraeu't' I. X. Y. PASS & SEYMOUR, INC. (J. S. \'ass) Solvay Station, 50 Boyd .\\e. Syracuse 9, N. Y. PATEK, Sherwood E. (S) Midland Brick & Tile Co. Chillicothe. Mo. PATEL, Chandrakant J. Box 236, Alred, N. Y. PATERSON, G. W. (R) Refractories Engr. & Supplies, Ltd. 99 Clinton St., Hamilton. Ont., Canada PATRICK, Lt.jg. Howard W. (XJ) VF-ll1, FPO. San Francisco. Calif. PATRICK, Joseph H. (S) 50i E. Creswell. Greel1\'. o<)<!. ~. C. I Southern Brick Co." PATRICK. Robert F. (Ell Pemco Corp. 2554 Greenmount .\\"e. Baltimore 18, Md. P.\t:'LSOX, Fred H. I R) 28 Greendale :\,e., Wore""ter 6. CllaS'. (N orton Co.) PAVLICA, Stanley R. Box 746, Alred. X. Y. PAVLISH. Arnold E. (GF) 2904 Clarkson Rd. Cleveland Heights 18, Ohio (Cleveland Snpply Co.) P.\\\'LO\\'SKI. Edward J. (R-, 11 Morris St.. Amsterdam, K. Y. (Mica Insulator Co.) PEARCE, Charles S. (F) American Ceramic Society 4055 N. High St., Columbus 14, Ohio PE:\RCH, Howard C. (WI) 62i Elson St., East Liverpool, Ohio (Louthan Manufacturing Co.) PEARCH, William M. (WI) Akron Porcelain Co" Akron 14, Ohio PEARSON, Edward P. (X) Basic, Inc., 845 Hanna Bldg. Cleveland 15, Ohio PEARSON, E. J. & J., LTD. (Charles A. G. Thomas) Firebrick Works Stourbridge, Worcs, England PEASE. Philip J. (G) 1405 Washington Ave. Parkersburg, W. Va. (Demuth Glass Works, Inc.) PECH~IAK, Alexander (WI) 1157 E. Pasadena. Pomona, Calif. (Pomona Tile Mfg. Co.) PECK. J. Clair (SI) 2433 Brookside Ln .. York, Pa. (Glen-Gery Shale Brick Corp.) PECKHAM, George W. (G) Chattanooga Glass Co. Corsicana, Texas PECKHAM, Robert H. (G) 4301 Sixth .'he.. S.. Seattle 8. Wash. IPenberthy Electromelt Co.) PEDERSEX. John R. tGJ) 1302 Parkside Bhd .. Tobin, Ohio ,0\\ em-l11inoi, I , i' I:: !I ,I :: !,IJ ;, t\ 1, ,I :!. . ,~ f I, :'EDRICK, W. W. (G) Armstrong Cork Co., Millville, N. J. 'EDl. Richard K. (RIl 2200 Prospect :\Ye. Cle\'eland 15, Ohio I Basic, Inc.) PEEL. G. K. Associated Lead Manufacturers Ltd. _ cent House " 'castle-on-Ty~e I. England , . SIdney :\. 1\\) Crane-Pacific Co. 330 W. Citrus St .. Colt<ln. Calif. PElLER. Karl E. IGFI Box 228. :'Ilystic. Conn. I Emhart :'lUg. CO.I PELL. Robert E. 909 W. Kevada St., T."rhana, Ill. PELLEGRI:-\'I. Edmund T. (G) Kopp Glass. Inc .. Palmer St. Swis>\'ale. Pittsburgh 18, Pa. PELZ, Robert W. (Ell 2706 Grovewood, Parma 9, Ohio (Ferro Corp.) PEMCO CORP. (Richard H. Turk) 5601 Eastern Ave., Baltimore 24, Md. PENBERTHY. Larr~' (G) Penberthy Electromelt Co. 2317 47th S. W., Seattle 16, Wash. PENNSYLVANIA PULVERIZING CO. (William J. Woods, Jr.) Two Gateway Center Pittsburgh 22, Pa. PEKTECOST. Joseph L. (W) 506 Woodland Dr.. Fairfax, Va. (Melpar, Inc.) PEREXY, Andrew (:'IIF) Pereny Equipment Co. 893 Chambers Rd. Box 153, Station A, Columbus, Ohio PERKINS, Harrell L. (M) Central of Georgia Railway Co. 1212 Rhodes-Haverty Bldg. Atlanta 3, Ga. PIlINS, Walter W. (WI) Jacoby Rd., Copley, Ohio ited States Stoneware Co.) P Y. Commodore :\. (S) 130 Wells Ave., Greenwood, S. C. (Southern Brick Co.) PERRY, Paul E. (B) Allegheny Ludlum Steel Corp. Brackenridge, Pa. PERRY, Robert F. (WI) Box 283, Victor, N. Y. (Victor Insulators Div., I-T-E Circuit Breaker Co.) PERRY, 2/Lt. Robert W. (GJ) 14th V. S. ASA Fld. Sta. APO 929, San Francisco, Calif. PERRY, T. Ray (W) 10629 Ambursen St. Houston 17, Texas (Gener1t1 Electric Co.) PERSICO, John V. 3400 Cashmere PI.. Seattle 5, Wash. PERTUCH, Walter A. R. (D) Franklin Institute Library 20th & Parkway, Philadelphia 3, Pa. PESKIN, William L. (R) Carborundum Co., Perth Amboy, N. J. PETERS, Forrest I. (W) 113 Hendy Ave., Elmira, N. Y. (Corning Glass Works) PETERSEN, Fred A. (EFI) Hunter-Thomas Associates 2130 Keith Bldg., Cleveland 15, Ohio "ETERSOX, Albert F. Rutgers. The State l"niversity School of Ceramic- Xew Brunswick. :-;. J. '.SO:-\, , Donald H. IR) Oakcrest :he.. Baltimore 14, :'lId. art in Co.) )ETERSON, Jack D. (G) 3029 123rd St., Toledo 11, Ohio (Owens-Illinois) PETERSO:-;, Jack L. (RI) ~20 Milan Ave. South Pasadena. Calif. I Mfgr. Equipment) PE'FERSOX, John A., Jr. (W) Metal & Thermit Corp., Carteret, N. J. PETERSOX, O. M. (M) Lithium Corp. of America Hanna Bldg., Cleveland, Ohio PETERSOI\, W. H .. Jr. (R) Valentine Fire Brick Co. Div. A. P. Green Fire Brick Co. Woodbridge, N. 1- . PETRIE, Lloyd R. (W) 305 \\. estern, Abingdon, Ill. (Abingdon Potteries, Inc.) PETT, Tyler G. (G) Kopp Glass, Inc. Swissvale, Pittsburgh 18, Pa. PETTY, Frank (W) 2771 W. 230th St. . Fainjew Park 26, Ohio (Cleveland Ceramic Corp.) PETTY. Howard E. (S) 3131 Ryons, Lincoln 2, Nebr. (Yankee Hill Brick Mfg. Co.) PETTYJOHX. Robert R. (B) 3777 ~'1 l'daIl, San Diego 7, Calif. (Com'air) PFAUDLER CO. (Sidney W. McCann) 1000 West Ave., Rochester 3, N. Y. PFEIFF, C. H. (R) Curran-Pfeiff Corp. Box 527. Metuchen, N. J. PFEIFFEKBERGER, Lucas E. University of Illinois 204 Ceramics Bldg., Urbana, Ill. PFEIFFER. Wilbur H. (EFI) Frigidaire Div., General Motors Corp. Engineering Lab., Plant 2 Dayton I, Ohio PFIXGSTEX, H. W. (S) 1410 Colonial Blvd., Canton, Ohio (Metropolitan Brick, Inc.) PFIXGSTEX, 'William, Jr. (S) Metropolitan Brick, Inc. Box 27, East Palestine, Ohio PFLEGER, George E. eM) Harshaw Chemical Co. 3237 S. Garfield, Los Angeles 22, Calif. PHADKE, V. S. Central Potteries, Ltd. Itwari, Nagpur 2, India PHELPS DODGE CORP. MORENCI BRANCH (L. L. McDaniel) Morenci, Ariz. PHELPS. Edwin H. (R) American Cast Iron Pipe Co. Box 2603, Birmingham 2, Ala. PHELPS, Girard W. (M) 410 E. Magnolia Dr., Morrisville, Pa. (United Oay Mines Corp.) PHELPS, Stuart M. (RF) Mellon Institute, Pittsburgh 13, Pa. PHILIPS ELECTRONICS, INC. INSTRUMENTS DIV. (c. J. Wooels) 750 S. Fulton Ave. :'Ilount Vernon, N. Y. PHILLIPS. Adrian W., Jr. (R) 316 Fairmont A"e., Xew Castle, Pa. IShenango China, Inc. Shenango Refractories Di\'.) PHILLIPS, Charles J. (GI) Rutgers. The State University School of Ceramics :\'ew Brunswick. N. J. PHILLIPS. Donald G. (B) 2804 Lynne Ave., Hatboro. Pa. (Precision Grinding \Vheel Co.) PHILLIPS, Edwin L. (M!) Carolina PyrophylHte Co. Box 2414, Greensboro, N. C. PHILLIPS. Gordon D. (W) Olean Tile Co. 103 S. Clark St., Olean. N. Y. PHILLIPS, James G. (RI) Dept. of Mines & Technical Surveys Mines Branch, Industrial Minerals Div. Lydia St., Ottawa, Ont., Canada PHILLIPS, Richard A. (WJ) 1836 Willow Ave. Xiagara Falls, N. Y. (Sprague Electric Co.) PHILLIPS, W. Eric (G) Duplate Canada Ltd., Box 367 Terminal A, Toronto, .Ont., Canada PHOEXIX, Richard C. (WI) R. R. I. \\'vnnewood Bound Bro~k, :\'. J. I :'Iloore & :'II unger) PICK.-\RO. :'I) H. (M) l'nited States Borax & Chemical Corp. Pacific Coast Borax Co. Oi,. 50 Rockefeller Plaza Xew York 20. ~. Y. PICKETT, Albert R. (R) Aluminum Co. of America 1501 Alcoa Bldg., Pittsburgh 19, Pa. PIEPER. Arthur O. (M) 105 Trevor Court Rd. Rochester 10, N. Y. (Heany Industrial Ceramic Corp.) PIERCE GLASS CO. (J. G. Bozzo) Railroad Ave., Port Allegany, Pa. PIERCE, J. Allen (R) 798 Chalmers PI., Pittsburgh 16, Pa. (Harbison-Walker Refractories Co.) PIERPO~T, Harlan T., Jr. (B) Norton Co., I New Bond St. Worcester 6, Mass. PIERSON, James F. (MI) Pemco Corp., Sales Dept. 5601 Eastern Ave., Baltimore 24, Md. PIGOTT, Phillip G. (R) Box 345, Norris, Tenn. (United States Bureau of Mines) PILKINGTON, Lawrence H. A. Messrs. Pilkington Bros., Ltd. Glass Works, St. Helens, England PINCUS, Alexis G. (B) General Electric Co., Res. Lab. Box 1088, Schenectady, N. Y. PINNEY, J. M. (W) Harker Pottery Co. East Liverpool, Ohio PINNOW, Harley R. (W) Pond St., R. R. 19 East Liverpool, Ohio (Hall China Co.) PINOTTI, Fred D. (G) 2324 Middlesex Dr., Toledo, Ohio (Kimble Glass Co.) PISULA, ]. Donald (R) Coming Glass Works, Corning, N. Y. PITHER, Leslie F. (G) Owens-Illinois Technical Center 1700 N. Westwood Ave. Toledo 7, Ohio PITTENGER, John T. (W) Box 207, Newell, W. Va. (Homer Laughlin China Co.) PITTMAN, Jack (G) Owens-Illinois, Technical Center 1700 N. Westwood Ave. Toledo 7, Ohio PITTMAN, William C. (R) 410 Whitthorne Dr., Wyoming, Cincinnati IS, Ohio (Chas. Taylor Sons Co.) PITTS, Joseph W. (E) 5714 Beech Ave., Bethesda 14, Md. (National Bureau of Standards) PITTSBURGH CORNING CORP. (Walter D. Ford) Research & Development Div. Port Allegany, Pa. PITTSBURGH PLATE GLASS CO. (James E. Archer) Glass Research Labs.. Creighton. Pa. PIXLEY. Da\id M. (W) Ohio Kilns. Inc., Granville. Ohio PIXLEY. Francis V. (S) Ohio Kilns. Inc.. Granville, Ohio ROSTER ,,7 I I ! J; I "I' Wi :E, Tom M. (BI) elipot Corp. ox 458, Newport Beach, Calif. E, Thomas M., Jr. (B) elipol Corp. ox 458, Kewport Beach, Calif. ,;G.E oVuersno~n L. (G) Electric Corp. . ld, N. J. ~ hristian W. (RFI\ ;ladding, McBean & Co. 901 Los Feliz Blvd. .os Angeles 39, Calif. ~JE, Theodore J. M. (B) Summit Ave., Rolla, Mo. Missouri School of Mines) ,<KENHORN, William J. (EFI) :hicago Vitreous Corp. 427 S. 55th Ct. :icero SO, Ill. rI', Allan S. (S) ;tructural Clay Products Institute .947 Grand Central Terminal Bldg. "ew York 17, N. Y. IT, James (S) ;tructural Clay Products Institute !556 Clearview Ave., N. W. :anton, Ohio ASANTS, Luther E., Jr. (G) ,002 Brookfield Rd., Richmond Va. : Allied Chemical & Dye Corp.) SSINGER, Clyde B. (S) Lindale, Texas (Reliance Clay Prodllcts Co.) 'ETZ, Edwin C. H. (EI) 3151 Hillcrest Dr. Wauwatosa 13, Wise. (A. O. Smith Corp.) IETZ, George L. (R) 261 Swanertown Rd., Scotia 2, N. Y. (General Electric Co.) fMBO, Victor A. (G) General Glass International, Inc. S S. Virginia Ave. Atlantic City, N. J. f . , Harry C. (SF) ral Clay Products Institute 8th St., N. W. Washington 6, D. C. fMMER, Norman (S) State Geolo~cal Survey of Kansas Lawrence, Kans. JMMER, William A. (G) Corninll: Glass Works, Corning, N. Y. jNKETT, Jerry D. 78 Westgate, Cambridge 39, Mass. JSCH, John A. (W) 63 Spruce St.. Westfield, Mass. (Cortland Grinding Wheels Corp.) FFENBERG, Scott (M) 11616 Chenault St. Los Angeles 49, Calif. (Aluminum Silicates Co.) ISSON, Louis F aiencerie de Badon viller Badonviller, Meurthe et Moselle, France LAND, Milton E. (\\'J1) 203 W. LaSalle, RO~'al Oak, Mich. (Champion Spark Plug Co.) LAR. Alfredo (W) National Tile & Mfg. Co. Anderson, Ind. LE, Gordon R. (BFI) 2592 S. Shore Blvd. White Bear Lake 10, Minn. (Minnesota Mining & Mfg. Co.) 'LES, Alfred P. (W) 325 Arborlea Ave., Morrisville, Pa. (Oifton Ceramic Mfg. Co.) ILH~MUS, D. W. lR) Carborundum Co. Perth Amboy, N. J. ).rthur E. (W) I, Dowagiac, Mich. uce Terminal Corp.) lLSON. John B. (RJ) 724 Riverview Dr. North Augusta, S. C. (Babcock & Wilcox Co.) JL. 36, No. 10 (1957) POMEROY, William T. (W) Sterling China Co. East Liverpool, Ohio POMPElt Luigi SANAC Soc. per Az. Refrattari Argille e Caolini Via Martin Piaggio 13-1, Genova, Italy POND, Marvin H. (W) 221 Ridge Ave., Gettysburg, Pa. (Climate Control Co.) POOLE, James P. (G) Brockway Glass Co., Inc., Plant 2 Brockway, Pa. . PORCELAIN METALS CORP. (c. J. Kleinhans) 1400 S. 13th St. Louisville 10, Ky. PORST, Edward G. (EI) 1418 Stonewood Rd., Baltimore 12, Md. (Pemco Corp.) PORTER, Frank R. (EFI) 318 E. Clark St., Crown' Point, Ind. (Inland Steel Co.) PORTER, J. L. (B) Kaiser Aluminum & Chemical Corp. 1924 Broadway, Oakland 12, Calif. PORTER, Wallace S. (W) Universal-Rundle Corp., Box 188 Hondo, Texas PORTS, David W. 3647 W. 68th St., Chicago 29, Ill. POSEY IRON WORKS, INC. (Frank A. Fix) Brick Machinery & Mixer Div. Lancaster, Pa. POSLUSZNY, Raymond F. (R) 242 E. Meehan Ave. Philadelphia 19, Pa, (Refractory Specialties Co.) POST, Benjamin F. (MI) Golding-Keene Co. 1401 New York Ave., Trenton 8, N. J. POSTE, Emerson P. (EFt) 616 Baldwin St., Chattanooga 3, Tenn. (University of Chattanooga) POSTLEWAITE, Donald E. (WI) Universal-Rundle Corp., Box 300 Redlands, Calif. POTTER, Alan National Bureau of Standards Conn. Ave. & Van Ness St., N. W. Washington 25, D. C. POTTER, Charles (G) Amersil Co. 685 Ramsey Ave., Hillside, X. J. POTTER, John F. (W) Bell Telephone Lab. Murray Hill, N. J. POTTERS SUPPLY CO. (William W. Irwin) 11 Washington St. East Liverpool, Ohio POTTIER. Henri Cie. Generale d'Electro-Ceramique 12 Rue de la Baume, Paris 8, France POTTINGER, R. (M) Vitachrome, Inc., 421 E. Sixth St. Los Angeles 14, Calif. POTTS, Amos P. (SF) 359 E. Main St., Logan, Ohio (Logan Clay Products Co.) POULOS, Nick E. (B) 1764 Flagler Ave. N. E., Atlanta, Ga. (Georgia Institute of Technology) POULTON, Rohert F. (W) 2763 N. Congress Rd., Camden 4, N. J. (Universal-Rundle Corp.) POUNDSTONE, William W. (G) Pittsburgh Plate Glass Co. One Gateway Center, Pittsburgh 22, Pa. POWELL, H. Eugene (G) 1061 Michigan Ave., Maumee, Ohio (Kimble Glass Co.) POWELL, Joe A. 2288 N. High St., Columbus I, Ohio POWELL, John A. (W) 429 S. West End Ave., Lancaster, Pa. (Radio Corp. of America) POWELL, Lee F. (M) Old Hickory Clay Co. Box 271, Paducah, Ky. POWELL, O. E. (S) Indiana Drain Tile Co., Inc., Box 66 Brooklyn, Ind. POWELL, Richard H. (M) 1279 N. Main St., Jamestown, N. Y. POWERS, Don W. 1201 Highland Ave., Abilene, Texas POWERS, Edwin G. (5) Cia. Mexicana de Tubos de Albanal, S. A. Avenida Marina Xacional No. 200 Mexico 17, D. F. POWERS, George H. (R) Norton Co.. Refractories Div. Worcester 6, Mass. POYNOR, T. Wythe (5) Acme Brick Co., Box 1278 Oklahoma City, Okla. POZEFSKY, Leo (R) 1940 Hopewell Rd., Bethlehem, Pa. (Bethlehem Steel Co.) POZZANGHERA, Sam A. (G) Bausch & Lomb Optical Co. 635 St. Paul St., Rochester 2, N. Y. PRACHANKHADEE, Manoon Dept. of Science, Ministry of Industry Bangkok, Thailand PRALOW, Walter E. L. Zahnfabrik Wienand Sohne & Co., Krs. Offenbach/Main Sprendlingen, Germany PRATT, Donald S. (E) 3422 Eighth Ave., BC\ver Falls, Pa. (Ingram-Richardson Mfg. Co,) PRECISION GRINDING WHEEL CO INC. (Alexander M. Blakely) 8301 Torresdale Ave. Philadelphia 36, Pa. PRESCOTT, Frank R. (G) 1811 Kimball Ave., Arnold, Pa. (Pittsburgh Plate Glass Co.) PRESTON, Frank W. (G) Preston Labs., Box 149, Butler, Pa. PREWITT, J. K. (S) Elgin Standard Brick Mfg. Co. Elgin, Texas PRICE, Glen M. (R) General Refractories Co., Box 1673 Baltimore 3, Md. PRICE, James E. (RI) 1956 Guernsey Ave., Abington, Pa. (Simonds Abrasive Co.) PRICE, J. Russell (D) "Fairmeadows" Box 211, R. R. 3 Esmond 17, R. 1. (Doulton & Co., Inc.) PRIDDY, K. O. (5) Barium Reduction Corp. South Charleston 3, W. Va. PRIESTLEY, J. Edward Huntly Brick & Fireclay Co., Ltd. Box 14, Huntly, New Zealand PRIMM, Herbert E. (R) 423 Parker Ave. San Francisco 18, Calif. (Gladding, McBean & Co.) PRINCE, Alan T. (BI) Mines Branch, Ottawa, Ont., Canada PRINDLE, William R. (G) Continental Can Co., Inc. Hazel-Atlas Glass Div. 15th & Jacob Sts., Wheeling, W. Va. PRIOR, Gordon M. (M) 200 W. Third St., Plainfield, N. J. (Specialized Ceramics Corp.) PRIOR, Harold D. (RI) Chas. Taylor Sons Co. Box 58, Annex Sta. Cincinnati 14, Ohio PROCTOR, W. J., Jr. (B) Southern Clays, Inc., Gordon, Ga. PROKOPEC, Robert (G) 309 N. Tillotson Ave., Muncie, Ind. (Ball Bros. Co., Inc.) . R_O.ST.E.R_.S.9 I I' .,, " ,I .i il I. I' II j 'ROKOPOWICZ, Thomas 1. (BJ) 33 Johnson St.. Korth Adams, ~Iass. (Sprague Electric Co.) 'ROMAT DIVISION, POOR & CO. I W. F. Stark) 851 S. Market St. Waukegan, Ill. 'RYOR, Edward K. (R) 0r.Giggey Co. 739, Whittier. Calif. " TT. John P., Jr. (ti) eeds & Northrup Co. 4901 Stenton Ave., Philadelphia 44, Pa. "UERTO RICO CLAY PRODUCTS CORP. (Oscar Gonzalez Cabanillas) Box 4729 San Juan. Puerto Rico "UI, Wong Yuk Castle Peak Ceramic Co., (1940) Ltd. Castle Peak, N.T., Kowloon. Hong Kong "l:LLl.UI. George R. (BI Douglas Aircraft Co., Inc. C-250 Ad,'. Des. Sect. Lakewood Blvd.. Long Beach 1, Calif. PL'LS. George (R) Acme Brick Co. Box 425. Fort Worth, Texas PULS, Josef "Austria" United Enamel Works Wilhe1minenstr. 80 Vienna 107, Austria PUMPHREY, William 1. Murex Welding Processes Ltd. Hertford Rd. Waltham Cross, Herts, England PUNTNEY, L. E. (RI) 908 E. Jackson, Mexico, Mo. (Mexico Refractories Co.) PUPULIDY. Alexander (R) 3100 S. Michigan Ave. Chicago 16, III. (Annour Research Foundation) PURCELL, Burnette (5) 834 Judson Ave., Evanston. Ill. i lorthwestern Terra-Cotta Corp.) GTON BRICK CO. . L. Worcester) ox 110, Galesburg. III. PURNELL, Hugh J. (R) 761 Loretta St., Pittsburgh 17, Pa. (United States Steel Corp.) PYRO REFRACTORIES CO. (A. C. Sanger) Box 488. Oak Hill. Ohio a QUIGLEY CO., INC. (R. J. Demaison) 415 Madison Ave., New York 17, N. Y. QUIRK, John F. (W) Battelle Memorial Institute 50S King Ave., Columbus, Ohio QUIRK, Virgil P. (B) 1754 Skyline Dr.. Pittsburgh 27, Pa. (Westinghouse Electric Corp). R RABCHUK, Alexander (R) Kerr Manufacturing Co. 1111 E. Milwaukee. Detroit, Mich. RABIN, William J. (W) 19A-l Redfield Village. Metuchen, N. J. (Ferricore, Inc.) RADCZEWSKI, Otto-Ernst Institut fur Gesteinshuttenkunde Mauerstrasse 5, Aachen, Germany RADIO MATERIALS CORP. (R. D. Bourgerie) 3325 N. California Ave., Chicago 18, Ill. RAGATZ. Eugene C. (M) en-Bradley Co. _ W. Greenfield Ave. Iwaukee 4, Wise. RA GO~, Frank C. (G) Owens-Illinois \'eneral En!l'ineering Dept. 3600 Alameda :\\-e., Oakland. Calif. VOL. ;)(t. XO. 10 (Ht;),,) RAHE, Villem 800 N. Main St., Washington, Pa. RAIBLE, A. J. (W) priggs Manufacturing Co. 415 W. Seymour Ave. Cincinnati 16. Ohio RAINE, Frank F. (RI) III E. Vine St., Mexico. Mo. (Mexico Refractories Co.) RAIXEAR. John F. (5) 68 Rainbow Terr. Orchard Park, X. Y. I Buffalo Brick Corp.) RAlT, J. R. Research Controller Hadfields Ltd. East Hecla Works, Sheffield 9, England RALSTON, O. C. (MF) . 4333 Clagett Rd.. Hyattsville. Md. (U. S. Bureau of Mines) RALSTON, Thomas E. (R) Harbison-Walker Refractories Co. 1800 Farmers Bank Bldg. Pittsburgh 22, Pa. R.\~I1REZ E .. Geronimo (El Hojalata y Lamina. S..\. Apartado Postal 91)6 Monterrey, X. L., Mexico RAMM, Eric H. L. Brisbane & Wunderlicb Ltd. Lord St., East Perth, West Australia RAMSDEN, C. E. C. E. Ramsden & Co. Ltd. Foley Colour & Chemical Works Fenton, Stoke-on-Trent, England RAMSEUR. Arthur, Jr. Box 1480. Georgia Tech. Sta. Atlanta, Ga. RAMSEY. Thomas H., Jr. (BJ) 1615 Homewood PI., Dallas, Texas (Aluminum Co. of America) RAMTITE CO. (Louis J. Jacobs) 2563 W. 18th St., Chicago 8, Ill. RANDALL, Theodore A. (D) State University of New York College of Ceramics, Alfred, N. Y. RANDOLPH, Hal F. (R) Mexico Refractories Co. Mexico, Mo. RANKIN, James J. (M) St. Joseph Lead Co., Box 97 Monaca, Pa. RANKINE, Adam S. (R) Martinsville, N. J. (Johns-Manville Corp.) RAXSOM. John T. (B) E. 1. du Pont de Xemour~ & Co.. Inc. Experimental Station Wilmington, Del. RAPP, Carl H. (WI) Globe-Union, Inc., 900 E. Keefe Ave. Milwaukee I, Wise. RAPP, H. W., Jr. (W) Morton Pottery Co. 315 W. Jeffers~n St.. Morton, Ill. RASMUSSEN, R. K. (G) Mississippi Glass Co., Fullerton. Calif. RASMUSSEN, Wayland G. (5) Mason City Brick & Tile Co. 200 Brick & Tile Bldg. Mason City, Iowa RASSXER, Donald D. (51) 1014 Longbrook Dr.. Ja~per. Ala. (Xatco Corp.) RATCLIFFE, Harry J. (M) 831 President Ave.. Trenton. X. J. (L'nique Kilns of Trenton, Inc.) RATCLIFFE, Temple W. (R) 244 Buffalo St., Beaver, Pa. (Babcock & Wilcox Co.) RATHMANN. Clyde L. (G) Corning Glass Works, Corning. X ,Yo RAUCH. Harry W. (G) 342 Spring Ln., Bridgeport, Pa. (Foote Mineral Co.) RAl'SCHER, Loui~ C. (G) Jenkintown Gardens Apt. F6 lenkintown. Pa. '( Lan~dale Tube Co.) RAY, Donald L. Box 3349, Georgia Tech. Sta. Atlanta, Ga. RAY. E. Harold (M) B. F. Drakenfeld & Co., Inc. Box 519, Washington, Pa. RAY, Jobn G. (G) Sylvania Electric Products, Inc. Cottage Place, Mineola. L. 1., N. Y. RAYTHEON MANUFACTURING CO. I Leonard Lesensky) Foundn' :he.. Waltham 54, ~Iass. RAZEY, R~bert ~1. (R) 486 Ashland Aye., Detroit 15. Mich. (Great Lake~ Steel Corp.) REA. Robert F. (WI) Diamonite Products Di,. l'nited States Ceramic Tile Co. ShreH. Ohio REAGAX. Cornelius J. (S) 532 Woodmont St. East McKeesport. Pa. (Van Ormer Brick Co.) REAG.\X. ~Iichael M. (E) Stamped & Enamelled Ware Ltd. Guelph Ave.. Hespeler. Ont.. Canada RE.\RDOX, Daniel E. Box 4923. Georgia Tech. Sta. Atlanta. Ga. REBCHOOK, Grell'0ry V. (W) Radio Malerial~ Corp., Attica. Ind. RECXY, Frank G. (B) General Electric Co. Specialty Electronic Components Dept. 1811 LeMoyne Ave .. Syracuse. N. Y. REDWIXE, Richard H. 115 Woodburn Rd., Raleigh, N. C. RED WING POTTERIES, INC. (Thomas M. Arnold) Red Wing, Minn. REED, A. J. (5) 521 Woodbine St., Willard, Ohio (Xational Clay Pipe Mfgrs., Inc.) REED, Carl E. (G) 1410 E. Main St., Lancaster, Ohio (Sharp-Schurtz Co.) REED. George C., III (BJ) 54644 N. 28th St.. South Bend IS, Ind. (Bendix Aviation Corp.) REED. Madison W., Jr. 7532 Ri~ing Sun .\ve.. Philadelphia. Pa. REED. Paul H. (R) 310'/. Fairmont Ave., New Castle, Pa. (New Castle Refractories Co.) REEVES, Harold, Sr. (W) Fitzpatrick Industries. Inc. Box 3D, East Palestine, Ohio REFRACTORIES INSTITUTE, THE (Avery C. Newton) First National Bank Bldg. Pittsburgh 22, Pa. REFRACTORY Be INSULATION CORP. (A. S. Arwine) Port Kennedy, Pa. REGEXBRECHT. Albert, Jr. (G) Svh'ania Electric Products, Inc. E'. Third St., Williamsport, Pa. REGOUT, Joseph F. E. N. V. de Sphinx, Maastricht, Holland REGOUT, L. F. H. N. V. Porselein en Tegelfabriek Mosa Meerssenerweg 358. Maastricht, Holland REHM. Walter E. 6 Beachyiew. R. R. 3, Springfield. Ill. REID, Frank P. American Ceramic Society 4055 N. High St., Columbus 14, Obio REID. P. S. Borax Con~oliJated Ltd. Borax Hou-e. Carlisle PI. London S. \\'. 1. England REIMER. John J. (WI) Keystone Ridgeway Corp. Gettysburg. Pa. REIX. Peter (W) 1746 W. Sycamore, Kokomo. Ind. (Kokomo Sanitary Pottery Corp.) ROSTER fl1 I 'l, :, I . 'I I IIii1ii .1:,i , , l, 1, , I .EINKER, Arthur G. (R) Johns-Manville Sales Corp. 1530 Guildhall Bldg. Cleveland IS, Ohio ',EINKER, Gerald E. (G) General Electric Co., Lamp Div. 1133 E. 152nd St., Cleveland 12, Ohio ~.EL' Frank (W) Mayflower, Arcadia, Calif. ectron Inc.) ~E G, Joseph A. (M) St. Joseph Lead Co., Zinc Smelting Div. Monaca, T'a. :EISS. Max S. (E) 39 Highland Terr. Canandaigua, X. Y. (Lisk-Savory Corp.) :EMDE, Harry F., Jr. General Ceramics Corp. Keasbey, N. J. tE~IIXGTOK, Victor H. (GFI) B. F. Drakenfeld & Co., Inc. Box 519, Washington, Pa. mMMEY, G. Bickley (RF) Richard C. Remmey Son Co. Hedley St. & Delaware River Philadelphia 37, Pa. ~EMMEY, George B., Jr. 17 Mars St., Mexico, Mo. ~EMMEY, John G. (R) Richard C. Remmey Son Co. Hedley St. & Delaware River Philadelphia 37, Pa. REMMEY, RICHARD C., SON CO. (G. Bickley Remmey) Hedley St. & Delaware Rivet:_ Philadelphia 37, Pa. . ~EMPES, Paul E., Jr. (BI) 1748 Cresthill. Royal Oak, Mich. RENFREW, J. Harvey (S) 31 Linden Park St., Roxbury 20, Mass. (Hennan G. Protze) RENOUF, Leonard J. (R) 342 Church St., Youngstown, N. Y. (Titanium Alloy Mfg. Div., ional Lead Co.) ERS, Richard H. (WI) erican-Standard Box 736, Kokomo, Ind. REPUBLIC STEEL CORP. (Burton Longwell) 1420 Republic Bldg. Cleveland 1, Ohio RESCHETZ, Raymond R. 1615Y, W. Park, Champaign, Ill. RESER, Margie K. 977 Carlisle Ave., Columbus 11, Ohio (American Ceramic' Society) REUNING, Charles R. (R) 545 Boulevard, Westfield, N. J. (National Refractories Div. Mexico Refractories Co.) REUNING, George W., Jr. (RI) 874 Newport Dr., Pittsburgh 34, Pa. (National Refractories Div. Mexico Refractories Co.) REUSCHE, Frank L. (W) 60 Congressional Pky. Livingston, N. J. (L. Reusche & Co.) REUTER, Raymond (R) National Aluminate Corp. 6216 W. 66 PI., Chicago 38, Ill. REYNOLDS, Harry M. (G) Renite Co., Box 365, Sta. A. Columbus, Ohio REYNOLDS METALS CO. (L. S. Beeler) 2500 S. Third St., Louisville, Ky. RHOADS, James L. (B) 1410 Springside Dr., Lancaster, Pa. (Radio Corp. of America) ES, Donald E. (B) lIinckrodt Chemical Works 00 N. Broadway. St. Louis 7, Mo. RHODES, Foster T. (W) Onondaga Pottery Co. 1858 W. Fayette St., Syracuse 4. K. Y. VOL. 36, No. 10 (1957) RHODES. Frank R., Jr. (RJ) 2336 Glenburn Rd., Augusta, Ga. (Babcock & Wilcox Co.) RHODES, Fraser B. (WFI) 7134 Maple Ave., Madeira, Ohio (Briggs Manufacturing Co.) RHODES, Ralph E., Jr.. (M) United Clay Mines Corp. 101 Oakland St., Trenton 6, No J. RHODES, Ralph R. (RFl) 1729 Powell St., Norristown, Pa. (E. J. Lavina & Co.) RHODES, William H. 154 East St., On~onta, N. Y. RICCI, Edward Michael (RJI) 817 Main St., Dickson City, Pa. (Harbison-Walker Refractories Co.) RICE, Hal H. (WI) 451 Vinewood Ave. Birmingham, Mich. (General Motors Corp.) RICE, Murray J. (B) Box ISS, Alfred, N. Y. (State University of New York, College of Ceramics) RICH, David C. (G) Pittshurgh Plate Glass Co. Creighton, Pa. RICHARD, Giulio A. Via Cernuschi 1, Milano, Italy (Societa Ceramica Richard-Ginori) RICHARDS, Robert W. (S) Richards Brick Co. 234 Springer, Edwardsville, Ill. RICHMAN, Peter D. Box 746, Alfred, N. Y. RICHMOND, Joseph C. (EFI) 4822 Morgan Dr., Chevy Chase IS, Md. (National Bureau of Standards) RICHTER, Charles J. (G) Box 275, Canfield, Ohio (Glass Engineer, Inc.) RICK, Clarence A. (R) 320 W. Park Ave., Columbiana, Ohio (Kaiser Aluminum & Chemical Corp.) RICKER, Richard W. (EI) Aluminum Co. of America Alcoa Research Labs., Box 772 New Kensington, Pa. RICKEY, Charles J. (MJ) B. F. Drakenfeld & Co., Inc. Washington, Pa. RICKEY, J. H., Jr. (R) Ironton Fire Brick Co. Box 536, Ironton, Ohio RIDDLE, Frank H. (Honorary, WFI) 14 Upland Rd., Colorado Springs, Colo. (Champion Spark Plug Co.. Ceramic Div.) RIDGEWAY, Thomas J., Jr. (R) 204 Romayne Ave., Joliet, Ill. (General Refractories Co.) RIEDER, Zoltan (B) American Electro Metal Div. Firth Sterling, Inc. 320 Yonkers Ave., Yonkers, N. Y. RIEGERT, Richard P. (BI) 507 Orange Ave. Kewport Beach, Calif. (Helipot Corp.) RIEPER, Gerald (W) 5335 Flint Ct. Indian Heights. Kokomo, Ind. (American Radiator & Standard Sanitary Corp.) RIGBY, James E. (G) Blue Ridge Glass Corp. Kingsport, Tenn. RIGTERINK, Merle D. (BF) Bell Telephone Labs. Murray Hill, N. J. RIIS, 'Asgeir (M) Robeson Process Co. Box 960, Erie, Pa. RIKER, Leon W., Jr. (G) 111 Rebecca St., Kittanning, 1"a. (Pittsburgh Plate Glass Co.) RILEY, Roger R. (R) 1774 Danesta Dr., Concord, Calif. (Gladding, McBean & Co.) RINDOKE. Guy E. lG) Department of Ceramic Technology Pennsylvania State University Universit~ Park, Pa. RIXEHART, Dale W. (G) 1420 Union :he., Brackenridge. Pa. l Pittsburgh Plate Glass Co.) RIXGEX, Robert E. (M) PaulO. Abbe, Inc.. 400 Center Ave. Little Falls, ~. J. RISEDEK, O. D. l \V) 2923 ~urick Dr.. Chattanooga. Tenn. (American Lava Corp.) RISPLER, Z. W. Palestine Glass Works "Phoenicia" Ltd., Box 168 Haifa, Israel RITLAXD. Harold X. (G) 2553 l56th Ave.. S. E., Bellevue. Wash. (Boeing Airplane Co.) RITT. P. E. (\\'j 910 Hillcrest Dr., Vienna. Va. (~Ielpar, Inc.) RITTER, Joseph S. (Gl Adamston Flat Glass Di,. Rolland Glass Co., Box 63 I Clarksburg, W. Va. RITTLER, Hermann L. (GI) I Meadowbrook Apts., Corning, K. Y. (Coming Glass Works) RITZ, Joseph W. (G) Sylvania Electric Products, Inc. 83-30 Kew Gardens Rd. Kew Gardens, L. I., N. Y. ROACH, Carlton (G) Adamston Flat Glass Div. Rolland Glass Co. Box 631, Clarksburg, W. Va. ROACH, H. C. (R) American Radiator & Standard Sanitary Corp. 40 W. 40th St. New York 18, N. Y. ROACH, Wilfred H. (G) 112 Renwick Lane. Horseheads. ~. Y. (Westinghouse Electric Corp.) ROBB. Richard B. (R) 209 Vine St., Pittsburgh 18, Pa. (United States Steel Corp.) ROBBINS. Carl R. (B) National Bureau of Standards Div. 9.3. Washinlrton 25. D. C. ROBBINS, David (W) 1929 Summerland St. San Pedro, Calif. (Northrop Aircraft, Inc.) ROBBINS. Martin D. (GJ) 86-15 Elmhurst Ave. Elmhurst. Queens, N. Y. (Chemical Engineering) ROBERTS. John Talrlrart (EFI) 419 Park Blvd., Glen Ellyn, Ill. (Crane Co.) ROBERTS, John W. (S) 3204 Hawthorne Ave., Richmond 22, Va. (Southern Lightweight AR'llregate Corp.) ROBERTS, Mervin Francis (E) 11 Plymouth PI., Gedney Sta. White Plains, N. Y. (de Lackner Helicopters, Inc.) ROBERTSOK. James A. (R) Food Machinery & Chemical Corp. Box 8. Princeton, N. J. ROBERTSON, John M. (E) 3008 Rosedale Bhd.. Louisville 5, Ky. (American Radiator & Standard Sanitary Corp.) ROBERTSON, Leon F. (G) Brockway Glass Co.. Inc.. Brockway, Pa. ROBERTSON, Randal K. (S) 906 University Tower Bldg. Montreal, Que., Cana<la (Laprairie Brick & Tile, Inc.) ROBERTSON, R. Kenneth (5) 133 Thornton Ave. Mt. Royal, Que.. Canada (Laprairie B"irk & Tile, Inc.) ROBESON PROCESS CO. ('Asgeir Riis) Box 960, Erie, Pa. ROSTER 93 I ! I iI )1 :~ ii !\ 'BILLARD, Harvey J. (R) Exolon Co., 1000 E. Niagara St. Tonawanua. N. Y. 'BINETTE, Oren, Jr. New Brick Apts., Apt. 23 Clemson, S. C. )B.N CLAY PRODUCT CO. . Robinson} Box 1070 . State St., Akron 9, Ohio )B. O~, Donald R. (W) Tile Council of America Rutgers, The State Uni\'ersit\" School of Ceramics . New Brunswick, X. ). )BIl\SON, F. George tS) 500 S. Santa Fe Dr., Denver, Colo. (Robinson Brick & Tile Co.) )BIXSOX, Gilbert C. (XF) Box 91, Clemson, S. C. (Clemson College) )BINSON, Louis G. (E) Louis G. Robinson Labs. Box 761, Cincinnati I, Ohio )BIXS01'\. Xeal (S.) Robinson Ventilating Co. Zelienople, Pa. )BINSON, Percy Burrill Diamond Clay Co. Ltd. Hartshill, Stoke-on-Trent, England JBINSON, Phillip 23 Pymble Ave. Pymble, N.S.W., Australia (Gallard &: Robinson Pty. Ltd.) JBINSON, Richard E. (RI) Johns-Manville, Zelienople, Pa. OBINSON, Richard R. (51) 2232 Parkway Blvd., Alliance, Ohio (Alliance Clay Product Co.) OBINSON VENTILATING CO. 0. L. Henderson, Jr.) Zelienople, Pa. OBINSON, W. E. (S) Robinson Clay Product Co. Box 1070, 65 W. State St. 9'OhiO ON, William L. (RJ) . Sixth St., Fulton, Mo. (Harbison-Walker Refractories Co.) OBSON, H. L. (G) 2 Water St., Lewiston, N. Y. (Olin Mathieson Chemical Corp.) OBSON, James T. (MF!) Allied Engineering Division Ferro Corp., 4150 E. 56th St. Cleveland 5, Ohio OBSOX, William G. (B) Atomics International 21600 Vanowen, Canoga Park, Calif. :OCHE, L. C. (GF) Maryland Glass Corp. 2147 Wicomico St., Baltimore 30, Md. :OCHESTER, Thomas W., Jr. (G) 210 Delevan Ave., Coming, N. Y. (Coming Glass Works) :OCHFORD, David S. Box 787. Alfred. N. Y. WCHOW, W. F. (RF) Harbison-Viialker Refractories Co. 1800 Farmers Bank Bldg. Pittsburgh 22, Pa. WCKFORD BRICK & TILE CO. l G. H. Galvin, Jr.) Rockford, Iowa :OCK\\'ELL. Dale L. (RJ) 5 East "D" St., Belleville. III. (Walsh Refractories Corp.) WDEFER, Howard H. (G) Rodefer-Gleason Glass Co. Box 550, Bellaire, Ohio {ODGER, John K. L. G. Sparking Plugs Ltd. fftnev Vale ld~n S. W. IS. Enj;(land '{ X, Clarence I. lEI , 5 S. Union A\"e...-\lliance, Ohio I Alliance Ware. Inc.) '{ODRIGUEZ, Alfonso F. (G) Vidriera Monterrey, S. A. Apartado 162, Monterrey. N. L. Mexi,'o ,,TaL. :3(), No. 10 (W.')I) RODRIGUEZ, A. R. (Bl) 29 Pine St., Franklinville, N. Y. (Hi-Q Div., Aerovox Corp.) ROE, 'Lawrence A. (G) 712 Moffett Rd .. Lake Bluff. III. (International Minerals & Chemical Corp.) ROE. Sheldon F., Jr. (GJ) Thatcher Glass Mfg. Co. Elmira, X. Y. ROFF, Robert W. (M) Bell Operations 433 Birch PI., Westfield. N. J ROFF, W. Wallace l~() 14 Glenside Dr., West Orange. X. ). (Whittaker, Clark & Daniels. Inc.) ROGATZ, Alvin (B) Maida Development Co. 214 Academy St., Hampton, \'a. ROGERS, Edwin J. (WI) Scintilla Div. . Bendix Aviation Corp., Sidne)', N. Y. ROGERS, Gregory L. (R) 9500 S. Norwalk Blvd. Los Nietos, Calif. (Pacific Clay Products) ROGERS. John W. (Rl Laclede-Christy Works, Refr. Di\". H. K. Porter Co. 2064 Hampton Ave.. St. Louis 10. Mo. ROGERS. Melvin F. (GI) 55 Goff St., Coming, N. Y. (Corning Glass Works) ROGERS, Virgil L. (S) Hebron Brick Co., Hehron. N. D. ROGERS. William R. (R) Carborundum Co., Bristol, Pa. ROLKE. Herbert J. (l) Sociedade de Engenharia Industrial Rua Marconi, 23.8 andar Sao Paulo, Brazil ROMANO, Pasquale J (Wi) 1212 Cavalier Ln., West Chester, Pa. (Foote Mineral Co.) ROMINE, Donald J. 606 S. Monroe St., West Frankfort. Ill. ROOD. Joseph L. (G) 56 Farnsworth Rd. Rochester 23. N. Y. (Bausch & Lomb Optical Co.) ROONEY, Thoma~ E., 111 (R) Empire Fire Brick Co. 219 Murray. Fort Wayne. Ind. ROOT. H. Dean (WI) Westinghouse Electric Corp. Ceramic~ Section 7325 Penn A,e.. Pitt,hurgh 8. Pa. ROOT, Lawrence L. (M) Stanford Pottery Inc. 40 S. 15th St., SebrinR. Ohio ROQllES. Rodney A. (W) 413 Boyd St., Golden, Colo. (Coors Porcelain Co.) ROSE. Ralph (RI, H. J' Porter Co.. Inc .. Refr. Di,. 2500 First National Bank Bldg. Pitt,burgh 22. Pa. ROSENTHAL,E.~ (W) 234 Napoleon St. Playa Del Rey, Calif. (Metlox Mfg. Co.) ROSENTHAL, Ernst 246 Park West, Marble Arch London W. 2. England I Rosenthal China Lte\.) ROSEXTHAL, Jerome J (RJI 2111-C 34th St .. Los .-\Iame". X. ~1. (Los Alamos Scientific Lab.) ROSENWINKEL, Gt'orge O. (R) North American Refractories 59 E. Van Buren, Chicaj;(o 5, Ill. ROSENZWEIG. Herman (G) Texglass. Inc .. Decatur. Texa, ROSICLARE LEAD & FLUORSPAR MINING CO. U. Blecheisen) Rosiclare, Ill. ROSLUND. J. A. (R) Globe Brick Co., Box 763 East Liverpool, Ohio ROSS, Donald W. tRFl) 5929A Oakhurst PI., St. Louis 12, ~Lo. t Consultant) ROSS, Howard, II (E) 3410 .-\rchwood .-\\'e. Cle\'eland 9, Ohio (Ferro Corp.) ROSS, Stuart T. (B) 901 Brooklawn Rd. Birmingham, Mich. (Chr)'sler Corp.) ROSSIXG. Barr) R. Box 1396..-\!fred. N. Y. ROSS-TACONY CRUCIBLE CO. (A. M. Johnson) Robbins & Milnor St.-. Philadelphia 35, Pa. ROTlt Harper D. (M) East River Rd., Grand Island, No Y. (Harper Electric Furnace Corp.) ROTHERMEL, Joseph J. (G) Corning Glass \\forks, Research Lab. Corning, K. Y. ROUDABUSH, Henry L. (R) General Refractories Co. 3201 Fruitland Ave. Los Angeles 58, Calif. ROUDABUSH, Ned W. (R) 311 Candlewood Rd" Broomall, Pa. (General Refractories Lu.) ROl'P, Rolland t\\'FI) Centralab Div.. Globe-Union Inc. 900 E. Keele Ave.. Milwaukee I, \\isc. ROWE. Arnold E. (E) 1210 Dilworth Rd., Charlotte, N. C. tDouglas Aircraft Co.) ROWL.-\l\D. Donald A. (B) 3 Maple St., Bath, N. Y. (Westinghouse Electric Corp.) ROWLAXD, Richards A. (B) 3737 Bellaire Blvd., Houston 25, Texas (Shell De\'elopment Co.) ROWLAND, R. W. (BF) New Castle Refractories Co. New Castle, Pa. ROWLANDS, Robert R. (WI) Unh-ersal-Rundle Corp. Box 300, Redlands, Calif. ROY, H. N. Indian Ceramic Society Dept. of Ceramics Benares Hindu Univ. Benares, India ROY, James W. (B) West St., Lenox, Mass (General Electric Co.) ROY. Rustum (B) Pennsvlvania State University 221 Mineral Sciences Bldg. University Park, Pa. ROYAL CHINA, INC. (B. L. Miller) Sebring, Ohio ROYAL COPENHAGEN PORCELAIN MANUFACTORY & THE FAIENCE MANUFACTORY ALUMINIA (Chr. Christensen) Smallegade 45 Copenhagen F . Denmark ROY AL, Herbert F. (WF) 845 Pilgrim Rd. Birmingham, Mich. (Champion Spark Plug Co.) ROYER, Rene Ingenieur-Conseil (E.C.P.) 60, Rue D'Issy, Vanves (Seine) Franct' Rl'.-\RK. A. E. (G) Atomic Energ) Commission Research Di\"., Washington 25. D. C. RUDD. Richard D. (M) Carborundum Co. 3335 \\'. 4ith St., Chicago 32, III. RUE, Charles V. (BI) 143 Lindsay Ave., Tiffin, Ohio \ Sterling Grinding Wheel Co.) RUECKEL, Walter C. (RF) Koppers Co., Inc., Koppers Bldg. Pittshurgh, Pa. Rl'FFXER. Larry J. (\V) leffers Electronics Di\". Speer Carbon Co. II 00\ er :\\T.. Du Bois. Pa. I' I I ,. ,j: i'l :' :I , Iill ._------j., :UGG, Ormund 1. (G) 13615 Meyers Rd. Detroit 27, Mich. (Ford Motor Co.) :UGH. Kenneth A. (R) Garfield Refractories Co. Bolivar, Pa. :UH. Edwia (R) Fruithurst Dr. burgh 34. Pa. rbison-Walker Refractories Co.) :UH. Robert (R) 162 Diana Ln. N., Fairborn, Ohio (Wright Air Development Center) :UIZ. Jorge Martin (R) Amerex Ingenieros. S.A. Ixtaccihuatl 6 (Insurgentes &. Aguascalientes) Mexico 11. D. F. tUIZ, Robert A. (R) 114 W. Home St., Vandalia. Mo. (Walsh Refractories Corp.) tULON. Richard M. (G) Sylvania Electric Products. Inc. 60 Boston St., Salem, Mass. tUSHMORE.Murray, Jr. (M) Moore & Munger 33 Rector St., New York 6, N. Y. tUSO. Felipe B. Galiano 109, Habana, Cuba (General Glass Equipment Co.) tUSOFF, Samuel (R) Basic, Inc. Maple Grove, Fostoria, Ohio tUSSELL, Howard F. (EI) 3118 Woodworth PI. Pottowatomie Hills, Hazelcrest, Ill. (Ingersoll Products Div., Borg-Warner Corp.) mSSELL, Leslie A. (G) Continental Can Co., Inc. Hazel-Atlas Glass Div. 319 S. Main St., Washington, Pa. mSSELL, Lewis E. Kirk Close, Oxford, England K. Atomic Energy Authority) ~ L, Norman Keith (RI) Longcorse Ln., Paoli, Pa. (Richard C. Remmey Son Co.) mSSELL. Ralston, Jr. (XFl) Dept. of Ceramic Engineering 126 Lord Hall, Ohio State University Columbus 10, Ohio n1SSELL, Robert G. (G) R. R. 2, Granville, Ohio (Owens-Coming Fiberglas Corp.) ~USTLESS IRON CO.: LTD. (H. Whitaker) Lawkholme Ln. Keighley, Yorks, England tUTHERFORD, Thomas C. (5) West Virginia Pulp & Paper Co. Charleston, S. C. ~UTLEDGE, Campbell, Jr. (G) Corning Glass Works, Corning, N. Y. lUZICKA, Ro}' H. (EJ) 15013 Reddington Ave. Maple Heights, Ohio (Ferro Corp.) . tYAN, Joseph D. (G) 3018 Middlesex Dr., Toledo 6, Ohio (Libbey-Owens-Ford Glass Co.) tYAN. Larry D. Box E, Gig Harbor, Wash. tYDER, Robert ]. 221 E. McCormick Ave. Apt. 2 State College, Pa. tYLAND, H. W. (W) Coors Porcelain Co. 600 Ninth St., Golden, Colo. lYIRS, Gerald F. (BI) 'onal Bureau of Standards . 9.1, Washington 25, D. C. ~Y KEWITCH, Eugene (R) 322 Van Emburgh Ave. Ridgewood. !'. J. (National Beryllia Corp.) .'OL. 36, No. 10 (l9,5i) s SABl:RI, Osamu Murata Mfg. Co. Ltd. Technical Lab. Kaiden, !'agaoka, Otokunigull K)'oto, Japan SADA, Patricio (E) Troqueles & Esmaltes S. A. Apartado Postal 371 Monterey. N. L., Mexico SADLER, Arthur G. (R) Mines & Technical Surveys Mines Branch. 40 Lydia St. Ottawa, Ont., Canada SADLER, Walter L. 219 E. James St., Falconer, X. Y. SAEl\G-XUTO, Padermrata Box 2111, Georgia Tech. Sta. Atlanta. Ga. SAGIXOR, S. V. (B) Gladding, McBean & Co. 2901 Los Feliz Blvd. Los Angeles 39, Calif. SAl BEL, Edward (G) Rensselaer Polytechnic Institute Troy. N. Y. SAILER. Edward (BJ) Radio Corp. of America Somerville, N. J. SALEEBY, Edward C. (S) J. C. Steele & Sons. Inc. Box 951, Statesville. N. C. SALINAS. Mario (G) Montes Carpatos 625 Mexico 10, D. F., Mexico (Vidriera Mexico. S.A.) SALISBURY. Charles W. (G) R. R. I, Wayne, Ohio (Kimble Glass Co.) SALISBURY, William R. (W) Lyndon Rd., Fayetteville, N. Y. (Onondaga Pottery Co.) SALTMAN. Donald (W) 17709 Ibbetson, Bellflower, Calif. (Douglas Aircraft, Inc.) SAMMARONE, Americo, Jr. Sammarone S. A. Industria Ceramica Rua Jose Bonifacio 210 Sao Paulo, Brazil SAMMONS, Frederick C. (R) General Refractories Co. 3247 Fruitland Ave. Los Angeles 58. Calif. SAMPSON. H. B. (S) Athens Brick Co. Box 751, Tyler. Texas SAMPSON. J. Leonard (G) Mahoning Glass Work~ General Electric Co., 403 N. Main St. Niles, Ohio SAMPSON, John W. (M) Lindberg Engineering Co. Box 813, East Longmeadow, Mass. SAMSON, A. William (G) B. F. Drakenfeld & Co. Inc. Box 519. Washin.non. Pa. SAMUEL. Donald G. (R) E. J. Lavino & Co. Box 29, Norristown, Pa. SANDERS. Clyde A. (R) American Colloid Co. Merchandise Mart, Suite 813 Chicago 54. Ill. SANDERS. Her~rt H. (D) 17926 Daves Ave., Los Gatos, Calif. (San Jo~e State ColleR'e) SANDERS, Loren D. (BJ!) 1233 Delaware Ave., S. W. Canton, Ohio (Ohio Brass Co.) SANDERSON. K. W. John G. Stein & Company, Ltd. Bonnybridge, Scotland SANDFORD, Per Johan Folke Chalmers Tekniska Hogskola Gibraltargatan 5J. Goteborg, Sweden SANDMEYER. Karl H. (RI) 8S Pleasantview Dr.. Tamestown, N. Y. (Carborundum Co.) . SANDS. George Imperial Smelting Corp. Avonmouth, Bristol. England SANFORD BRICK & TILE CO (James V. Isenhour). Colon. N. C. SAX FORD, Elbert A. (E) 375 Oakridge Dr. Rochester 17. N. Y (Pfaudler Co.) SAXFORD, Robert E. Box 286, Dalton, N. Y. SANGER, A. C. (R) P)'ro Refractories Co. Box 488, Oak Hill, Ohio SAN MIGUEL BREWERY, INC. (A. ViIla-Abrille) 1112 Aviles Manila, Philippines SAXNER, R. Dean R. R. I, Argenta, Ill. SANT, John W. (W) Universal-Rundle Corp. Mt. Vernon & Orchard St. Camden, N. J. SANTOMIERI. S. Lewis (WI) Box 8, Botkins, Ohio (Botkins Engineering) SARAKAUSKAS, Raymond (B) National Carbon Co., Research Labs. Box 6116, Cleveland 1, Ohio SARGENT, Edward C. (R) Zirconium Corp. of America Solon. Ohio SARRAF. Edward M. (R) 20001 Laurel Ave. Rocky River 16, Ohio (Harbison-Walker Refractories Co.) SARVER, James F. 107 E. Aaron Dr., State College. Pa. SASAKI GLASS MFG. CO., LTD. (Seiichi Tabata) l.1-Chome Yokokawa-Bashi Sumida-ku, Tokyo. Japan SASTRY, B. S. R. Pennsylvania State University College of Mineral Industries University Park, Pa. SAUEREISEN, C. Fred (W) Sauereisen Cements Co. Sharpsburg Sta., Pittsburgh 15. Pa. SAUNDERS. Alfred C. (Rl) Eckhardt Rd., Hamburg, N. Y. (Electro Refractories & Abrasives Corp,) SAUNDERS, Hollis S. (E) O. Hommel Co., Box 475 Pittsburgh 30. Pa. SAUNDERS. R. H. (5) Charleston Clay Products Co. Box 349. Charleston 22, W. Va. SAUNDERS, Richard A. (S) 2626 Larwood Dr.. Charleston. W. Va. (Charleston Clay Products Co.) SAUNDERS, Stephen C. Box 787, Alfred, N. Y. SAUSVILLE. Joseph W. (R) Curtiss-Wright Corp., Quehanna. Pa. SAVELL, Fred H. (W) Western Talc Co. 1901 E. Slauson Ave. Los Angeles 58. Calif. SAVIOLI, Francesco SANAC, Via Martin Piaggio 13 Genova, Italy SAW AI, Ikutaro Kyoto University. Kyoto, Japan SAWYER, E. C. (M) Central Silica Co., 806 Market St. Zanesville. Ohio SAWYER, James P. (W) 713 Green Glen Dr., Du Bois, Pa. (Jackson China Co.) SAXE, Charles W. (R) I Wawecus Rd., Worcester 5, Mass. (Norton Co.) SAXONBURG CERAMICS (George H. Aderhold) Box 100 Saxonburg, Pa. SCALES. John B. (BI) 456 Lynn Dr. Berea, Ohio (United States Stoneware Co.) ROSTER 97 I I' , .! I : j. ;I :: .It I: HAA, Ferdinand A., Jr. ~ W) 84 Paumanake Ave., Babylon, N. Y. (Sylvania Electric Products Inc.) HAAL, Frank W., Jr. (W) B. F. Drakenfeld & Co., Inc., Box 519 Washington, Pa. HABACKER, H. Eric (E) ceramic Arts Co. W. 22nd St., Erie, Pa. , Roy G. (G) General Electric Co., Glass ~Hg. Dept. 17825 St. Clair Ave. Cle"eland 10, Ohio :HAEFER, Carl F. (W) 327 Sheffield Ave., Flint, Mich. (A. C. Spark Plug Div. General Motors Corp.) :HAEFER. Earl F. (G) 3129 Radford Dr., Toledo 14. Ohio (Owens-Illinois) :HAEFER, Earl F., II 102 E. Chalmers, Champaign, 111. :HAEFLE, Max Thayngen/SH, Swit~erland (Tonwerke Thayngen A. G.) :HAFER, C. B. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio :HAXER, Burton E. (B) Westinghouse Electric Corp. Box 1468, Pittsburgh 30, Pa. :HATZKIN. Harvey (W) Architectural Tiling Co. Inc. Cass/Jackson Sts., Keyport, N. J. CHAUSS, Edward P. (G) .' 3846 Corina Way, Palo Alto, Calif. (Kaiser Aircraft & Electronics Corp.) CHELL, Donald C. (E) 6422 W. 28th St., Berwyn, III. (Armour Research Foundation) CHIEFFERLE, James A. (E) 4501 Statton Rd., Louisville 5, Ky. (General Electric Co.) 1I'E' Quentin J. (R) Kingston Ave., Chicago 49, Ill. ited States Steel Corp.) C FERLI, Leo M., Jr. (R) 3001 Westmoor Dr., Kokomo, Ind. (Haynes Stellite Co.) CHLEGEL, Roland F. Rua Inglaterra 283, Sao Paulo, Brazil CHLEHR, W. Raymond (Gl) Ford Motor Co., Glass Plant Dearborn, Mich. CHLOEMER, Hermann Mineralog. Institution of Univ. Tuebingen, Bismarkstr. 50 Tuebingen, Germany iCHLOTZHAUER, Leon R. (R) R.R. 2, Painted Post, N. Y. (Cominl' Glass Works) ;CHMID, Arthur W. (G) Arthur W. Schmid Co. 1414 Investment Bldg., 239 Fourth Ave. Pittsburgh 22, Pa. ;CHMIDT, Beuther L. (R) Anchor Hocking Glass Corp. Lancaster, Ohio ;CHMIDT. William G. (5) Box 187, Burnt Hills. ~. Y. (General Electric Co.) ;CHMUKK, Louis (W) 70 Dunedin Dr. Toronto 18, Ont., Canada (American Standard Products Ltd.) ;CHXEIDER, Claude \\'. (5) Schneider Brick & Tile Co., Inc. 2599 Front St.. Slidell, La. ;CHNEIDER, LaVoy H. (E) 5 Maple Ct., Hamilton, Ohio 4 rro Corp.) IDER, Matthew P., Jr. (5) 8 Louisa St., Slidell, La. St. Joe Brick Works, Inc.) 'CHKEIDER, Richard R. 179 Dunhams Cor. Rd. ~Iilltown. X. J. \'OL. 31i. ~O. 10 0\).")/) SCH:\EIDER, Samuel J .. Jr. (RI) 3338 Lancer Dr. West Hyattsville, ~Id. (:\ational Bureau of Standards) SCHCJELLKOPF, Robert S. (W) Carborundum Co. of Puerto Rico Box 1147, Mayaguez. :euerto Rico SCHOENmGER, Irvin W. (WI) 5250 N. Shoreland Ave. ~liIwaukee 17, Wise. t Centralab Diy., Globe-Cnion Inc.) SCHOEXLAl'B, Robert A. \B) Harrop Ceramic Service Co. Box 5338, Shepard ,Sta. Columbus 19, Ohio SCHOEPPEL, Norman (RI) 10 Elm Tree Dr., Mexico, Mo. (A. P. Green Fire Brick Co.) SCHOFIELD. H. Zane (RFI) Koppers Co., Inc., Research Dept. Koppers Bldg.. Pittsburgh 19, Pa. SCHOLES. Addison B. (G) Interlectric Corp., \Varren, Pa. SCHOLES. S. R. (GF) Box 752. Alfred, N. Y. t State University of New York College of Ceramics) SCHOLS, Leon V. F. M. St. Lambertuslaan 4a ~I aastricht, Holland (Regou t-Matthey) SCHOOKOVER, I. C. (B) ~ational Bureau of Standards Washington 25, D. C. SCHOTSMAN, J. Kruisstraat 31, Dieren, Netherlands 0 . V. Enamel Works "de Yssel") SCHOTTLAND, A. H. (G) Standard Bent Glass Co., Butler, Pa. SCHOTTS. Walter H. (MFl) 23 E. Southington Ave. Worthington, Ohio (Harrop Ceramic Service Co.) SCHRADER, David M. (R) 742 Rotch Ave., Massillon, Ohio (Kaiser Aluminum & Chemical Corp.) SCHR.UIM, Edward (WF) Onondaga Potter)' Co. 1858 \"1. Fayette St.. Syracuse 4. N. Y. SCHRECKENGOST, Don (OF) 2617 St. Oair Ave. East Liverpool, Ohio (Homer Laughlin China Co.) SCHRECKENGOST, Viktor (D) 2265 Stillman Rd. Cleveland Heights 18, Ohio (Salem China Co.) SCHREIBER, Edward Box 948. Alfred. N. Y. SCHREIBER, Karl L. (W) "EI Anfora" S. A. Espalda Penitencieria, Mexico, D. F. SCHRICKEL. Herman H., Jr. (G) 178 E. Pulteney St., Coming, N. Y. (Coming Glass Works) SCHROEDER, Fred W. (RFJ) Xorth American Refractories Co. Research Center. Curwensville, Pa. SCHROEDER, Herbert S. (R) 6 Conover Ln., Red Bank, N. J. (Carborundum Co.) SCHUCK, John F., Jr. (WI) R.R. 1. Apple Creek. Ohio (Alite Di,'., U. S. Stoneware Co.) SCHlEXZEL. Ernest C. (w) Cayo Dr.. Poughkeepsie. ~. Y. I International Business :\Iachines Corp.) SCHULHOF. Andres Lozadur, Grandes Fabricas Argentinas de Ceramica, S. A. Boulogne, F.C.N.G.B. Buenos Aires, Argentina SCHVLTZ, Donald G. (5) 3119 Woodworth, Ha~elcrest, 111. (Chicago Brick Co.) SCHl'LTZ. Jack M. (W) :\luminum Co. of America (>10 :\ew Center. Detroit 2. Mich. SCHULTZ, James B. (S) 1321 E. Robinson St. Korth Tonawanda, N. Y. (Xational Gypsum Co.) SCHl'LTZ, John. Jr. (E) General Electric Co. ~Ietallurg)' & Ceramics Lab. .\ppliance Park, Bldg. 5, Rm. 2~9 Louis\'ille, Ky. SCHl~I.\CHER. \\"iIliam G. \~IJ 122 Chandler Lane Hoffman Estates 2, Ro,elle. Ill. (:\ational Cylinder Gas Co.) SCHCRECHT, H. G. (WFI) Champion Spark Plug Co. 8525 Butler Ave., Detroit 11, Mich. SCHl'RTZ, D. D. (GF) Sharp,Schurtz Co. 301-303 Lincoln Ave. Lancaster, Ohio SCHWAB, Leon B. (RJ 214 E. Home St., Vandalia. Mo. (Harbison-Walker Refractories Co.) SCH\\'ARTZ, Bernard (BI) 35 Dogwood Dr. Downingtown, Pa. I International Resistance Co.) SCHWARTZ, Jerome W. (W) Sascha Brastoff Products, Inc. 11521 W. Olympic Blvd. Los Angeles 64, Calif. SCHWARTZ, M. A. (BI) WCRRL, Aeronautical Research Lab, W.A.D.C. Wright-Patterson AFB, Ohio SCHWARTZWALDER, Karl (WFI) A C Spark Plug Div. General Motors Corp. Flint 2, Mich. SCHWEICKHARDT, William K. (R) Walsh Refractories Corp. 10] Ferry St., St. Louis 7, Mo. SCHWEITZER, Howard V. (M) Schweiuer Equipment Co. 3764 Ridge Rd., Oeveland 9, Ohio SCHWENKLER, Edward P. 979 Grove St., Elmira, N. Y. SCHWIETE, Hans-Ernst Institut fur Gesteinshuttenkunde ~Iauerstrasse 5, Aachen, Germany SCOTT. J. W. (W) 76SG-Western Electric Co., Inc. Hawthorne Station, Chicago 23, Ill. SCOTT, Murray R. (GFI) Bausch & Lomb Optical Co. 635 St. Paul St., Rochester 2, N. Y. SCOTT, Robert M. (RI) 4619 Druid Ln., Dayton 9, Ohio (Norton Co.) SCOTT, Roger F. (Gl) 911 E. Main St., Millville, N. J. (Armstrong Cork Co.) SCOTT, Wi1liam D. One Canyon Rd., Berkeley 4, Calif. SCOTT, W. J. (W) Western Electric Co., Inc. 2500 Broening Hwy. Baltimore 24. Md. SEABRIGHT. Clarence A. (W) 17541 Dale"iew Dr., Lakewood i. Ohio (Harshaw Chemical Co.) SEABRIGHT. Edward C. (E) 6107 \\'. Mill Rd., Flourtown, Pa. (Philco Corp.) SEANOR, J. G. (S) 2300 W. Tuscarawas St. Canton 8, Ohio (Bonnot Co.) SEARCY, Alan W. (B) Division of Mineral Technology University of California Berkeley 4, Calif. SEARLE, Alfred B. 62, Moorcliffe. Skircoat Moor Rd. Halifax, England (Consultant) SEARSON, Leslie James Oakes & Co. (Riddings) Ltd. Jacksdale, Notts, England ROSTER 99 ;I I I II I SEASE, John B. Box 3164. Clemson College Sta. Clemson, S. C. SEATOK, Max Y. ,BF) Food Machinery & Chemical Corp. 161 E. 42nd St., New York 17, N. Y. S.I!\G' George F. (W) er Makers Importing Co., Inc. S. Second St., Easton, Pa. S AN, Harry D. (WI) 220 W. Third, Peru, Ind. (Square D Co.) SECOR, Robert B. (B) Filtrol Corp. 3250 E. Washington Bhd. Vernon 23, Calif. SECORD, Robert N. (W) Godfrey L. Cabot, Inc. Research & Development Dept. 38 Memorial Dr., Cambridge 42, Mass. SECRIST. Duane R. 2486 W~ston Ave., Xiagara Falls, N. Y. SEDENKA, Anthony (E) 1086 Magnolia Dr., Washington, Pa. (B. F. Drakenfeld & Co., Inc.) SEELEY, Clarence E. (G) Glass Products Co. Box 926, Santa Barbara, Calif. SEELEY, E. L. (W) 800 Lotus Ave., Chester, W. Va. (Harker Pottery Co.) SEEMANN,. Wilhelm Pipersgatan 3, Stockholm, Sweden SEETS, Dewaine 1110 W. Springfield, Urbana, Ill. SEGELER, C. G. (M) American Gas Assn., 420 Lexington Ave. New York 17, N. Y. SEIDEL, Joseph (W) 211 Davey St., Bloomfield, N. J. (Westinghouse Electric Corp.) SEIPEL, Robert B. (G) Blue Ridge Glass Corp. Kingsport, Tenn. s~wo1fram (G) s Containers Inc. 1 Santa Fe Ave. Angeles 58, Calif. SELLERS, George A. (R) 315 E. Crescent Ave., Elmhurst, Ill. (Plibrico Co.) SELLERS, John T. (RI) 52 Broadway, Jackson, Ohio (Durex Refractories Co.) SELSING; Jorgen (B) 1316 Noble St., Barberton, Ohio (Ohio Brass Co.) . SEMMELMAN, John O. (WI) Dentists' Supply Co. of New York 500 W. College Ave., York, Pa. SEMPLE, John Metal Porcelains Ltd., Cornwall Rd. Smethwick 40, Staffs, England SEMPLE, William A. (R) Aluminum Co. of Canada, Ltd. Gen. Tech. Dept., 1700 Sun Life Bldg. Montreal, Que., Canada SENK, Johann Vienna XVII Dornbacherstr. 29, Austria (Radio Fabrik IngelenPorzellan Fal.rik) SENTERS, Walter (S) Washington Brick & Lime Co., Box 2198 Spokane, Wash. SENTRY SANITARY CORP. (Marvin E. Abrams) Box 427 Mannington, W. Va. SEPHTON, H. J. (G) Dominion Glass Co. Ltd. WChapple St., Hamilton, Ont., Canada CE PORCELAIN AMEL, INC. aul S. Cecil) Brill & Christie Sts. Newark 5, N. J. SERVIS, Donald H. (W) Robertson Mfg. Co., Box 848 Trenton 5, N. J. VOL. 36, No. 10 (I!);jj') SETCHEL, Hayden Merritt (G) 105 Tenth St., Streator, III. (Owens- Illinois) SEVERIX. Harold 110-D West Blvd., Pittsburg, Calif. SEVERSIKE, Carroll L. (W) 23 Race St., Frenchtown, N. J. (Frenchtown Porcelain Co.) SE\\'ELL, Dave \\'. ,SJ Pomona Terra Cotta Co. Pomona, N. C. SEYBERT, Earl K. (R) Davison Chemical Co. Di,. W. R. Gra'ce & Co. 101 N. Charles St.. Baltimore 3, Md. SEYMOUR, Samuel L. (G) 26 Crystal Dr., Oakmont, Pa. (Pittsburgh Plate Glass Co.) SH.\FFER. E. F. (G) Ohio Power Co. nS E. ~Iain, Xewarl<. Ohio SHAFFER, Paul C. (G) 85 Chapel St., Seneca Falls, N. Y. (Sylvania Electric Products, Inc.) SHAH. Chunilal P. Born bay Potteries & Tiles Ltd. Pipe Rd., Kurla, Bombay 37, India SHALEK, Peter D. (W) 526 Lake St., Oak Park, III. SHAKD, Errol B. (G) 155 Reynolds Ave., Corning. N. Y. (Coming Glass Works) SHAKD, Rodger L. (E) 230 Woodale Rd. Oahille, Ont., Canada (Ferro Enamels (Canada) Ltd.) SHANDS, Everett H. (E) 1930 Harlem Blvd., Rockford, Ill. (0. Hommel Co.) SHANER. Frank c., Jr. (R) Richard C. Remme)' Son Co. 1012 35th St., N. W., Canton 9, Ohio SHANER. Herbert J. (R) Ramtite Co.. 2563 W. 18th St. Chicalto 8. Ill. SHAKKLE, Richard G. Box 288, Alfred, N. Y. SHANKS, Douglas Shanks & Co. Ltd., Victorian Pottery Barrhead, Near Glasgow, Scotland SHANNON, Harry F. (E) United States Steel Corp. Applied Res. Lab., Monroeville, Pa. SHAPIRO, Howard (Bll 222 E. 56th St., New York 22, N. Y. (Sylvania Corninrz Nuclear Corp.) SHAPLAND. James T. (R) 2513 Collins Rd., Pittsburgh 35, Pa. (United States Steel Corp.) SHARDLOW, L. Russel (BI) Radio Corp. of America Somerville, N. J. SHARP. Donald E. (GF) Libbev-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio SHARP, E. W. (RI) Pedro, Ohio (Lawrence Refractories Clay Co.) SHAVER, Richard C. (B) 2 Hamilton St., Auburn, N. Y. (Cowles Chemical Co.) SHAVER, W. W. (GF) 130 E. Fourth St., Corning, N. Y. (Coming Glass Works) SHAW, Anthony E. (S) Natco Corp., 327 Fifth Ave. Pittsburgh 22, Pa. SHAW, Charles T., Jr. Box 1316, Georgia Tech. Sta. Atlanta, Ga. SHAW, Clarence F. (WI) R. R. I, Trevor, Wisc. (Pickard, Inc.) SHAW, L. 1. (XI) 1616 Ocean Ave., Apt. 16 Santa Monica, Calif. (Consultant) SHAW, Myril C. (MFI) 563 Gates St., Philadelphia 28. Pa (A,bestos Textile Institute) SH .... W, Orvella Box 627, Alfred, X. Y. SH....W, Robert R. 1101 Campus Pk}., Seattle 5, \\ash. SHAW, Ronald H. (S) L. E. Shaw Ltd., Box 996 Halifax, Nova Scotia, Canada SHA\\', Ronald R. 137 Inglis St. Halifax, ~;ova Scotia, Canada SHAYNA, Michael (S) 506 S. Railway St. Swift Current, Sask., Canada (\\'estern Clay Products Ltd.) SHEARER, Walter L. (R) Bartley Crucible & Refractories, Inc. 15 Muirhead :\ve., Box 358 Trenton 3, N. J. SHE .... RER, Wayne B. (R) 364 Bensel Rd. Shore Hills, Landing. K. J. (Reaction ~lotors, Inc.) SHEAROUSE, Lee A. (W) 326 Highland Ave., Wadsworth, Ohio (Ohio Brass Co.) SHEEHAN, Robert W. (W) Box 38, Saxonburg, Pa. (Du-Co Ceramics Co.) SHEETS, Herbert D. (RI) Battelle Memorial Institute 505 King Ave., Columbus I, Ohio SHEHEEN, Alexander (X) Standard Oil Co. (Indiana) Engineering Res. Dept. 2400 New York Ave., Whiting, Ind. SHELDON, John L. (G) 179 Dodge Ave., Corning, N. Y. (Corning Glass Works) SHELDON, R. S. (E) 2215 Wilson Ct., St. Joseph, Mich. (Whirlpool Corp.) SHELL, Haskiel R. (B) U. S. Bureau of Mines Electrotechnical Experiment Sta. Norris, Tenn. SHELLEY, C. B. (RI) General Refractories Co. 1520 Locust St., Philadelphia 2, Pa. SHELTON, Philo S., Jr. (G) 130 Burr St., Fairfield, Conn. (Zell Products Corp.) SHENANDOAH SILICA CO., INC. (Herreid D. Thropp) 190 W. State St., Trenton 8, N. J. SHENANGO CHINA. INC. (Geo. B. Zabniser) New Castle, Pa. SHEPHERD, John F. (EI) Shepherd Chemical Co. 2803 Highland Ave. Norwood, Cincinnati 12. Ohio SHERRILL, Ernest (M) Westwood Ceramic Supply Co. 610 Venice Blvd.. Venice, Calif. SHERRILL, Robert R. (EI) 425 Canyon Dr., Glendale 6, Calif. (Bulwark Corp.) SHERWOOD, Robert F. (WFI) c/o Mr. W. Harold Reid, Alfred, N. Y. (Smith, Hinchman & Grylls Associates, Inc.) SHEVLIN. Thomas S. (RFI) Engineering Experiment Station Ohio State University Columbus 10, Ohio SHIFF, Tom (R) Villa Ridge Addition, R. R. 2 Godfrey, Ill. (Laclede Christy Works. Refr. Div. H. K. Porter Co.) SHIMADA, Hachiro Shimada Glass Laboratory No. 2867, l-Chome, Sanno Ota-ku, Tokyo, Japan SHIMADA, Kuro Toyo Glass Co., Ltd. No. 47 Shimo-3-Chome Fukushimaku, Osaka, Japan SHIMER, J. B. (GI) Knox Glass Co. Knox, Pa. ROSTER 101 I I' i I' I :j j' I ,I :I ,i ! I ! II II ;i 3H 1:\1:\1 E"', ~ormall C. ~\\') 2348 Ventura Dr., R. R. 4 Walled Lake, Mich. (Champion Spark Plug Co.) 3HIPE, Paul J. <R) :>Ioraine Prod. Div., General Motors Corp. 20 Wisconsin Blvd., Dayton I, Ohio ~ EY, Linden E. (W) Crestview Rd., Columbus 2, Ohio non Ceramic Foundation) SHIPLEY, R. A. (S) ?\'atco Corp.. 327 Fifth Ave. Pittsburgh 22, Pa. SHIPPY, Gordon D. (E) 2720 \\'. Chambers, :>filwaukee, Wisc. (A. O. Smith Corp.) SHIVELY. Robert R., Jr. (G) 2416 l;ulf Bldg.. Hou-toll 2. Texa, (Olin :>Ialhi,,on Chemical Corp.) SHODL\KER. Donald W. (R) Corhan Refraclorie._ Co.. Inc. 1f>00 \\'. Lee St.. Louisdlle 10, Ky. SHOEMAKER. George W. (S) Arketex Ceramic Corp., 6 ::--I. Walnut St. Brazil. Ind. SHOFFXER. James E.. Jr. (G) 118 Cherokee Rd .. Xashdlle 5, Tenn. (Ford lItotor Co.) SHOFSTALL. X. F. (B) General Electric Co. Specialty Electronic Components Dept. 1811 LeMoyne Ave., Syracuse 8, :sr. Y. SHONEBARGER, F. J. (G) General Electric Co. Glass Technolog)' Lab. 1133 E. 152nd St., Cle"eland, Ohio SHOXKWILER, Francis P. (RI) 2516 Milford Dr., Bethel Park, Pa. (Harbison-Walker Refractories Co.) SHOOK, Thurston W. (M) 2569 McVey Blvd., W. Worthington, Ohio (Harrop Ceramic Service Co.) OK, William B. (I) 4 Chatham Rd .. Columbus 14, Ohio T. Lyle E. (W) 82 Park Forest Ave. State College, Pa. (Erie Technical Ceramics. Di\'. Erie Re~istor Corp.) SHOPHER. Sterling D. (RI) 404 E. Summit, ~Iexico. Mo. (Mexico Refractories Co.) SHORTER, A. J, Bdhnybridge Silica & Fireclay Co. Ltd. Bonnybridge, Stirling, Scotland SHORTER, W. H. (G) Emhart Manufacturing Co. 333 Homestead Ave., Hartford 2, Conn. SHREMP, Raymond M. (R) 227 S. Clay St., Zelienople, Pa. (Lava Crucible-Refractories Co.) SHUKLE. Archie A. (W) G1459 Schafer Dr.. Flint, ~Iich. (A C Spark Plug Div. General Motors Corp.) SHULZE. Charles E. (BI) R. R. 2, Box 125. :\shland. Ky. <Big Run Coal & Clay Co.) SHUMAN, Albert (G) Polarizing Instrument Co. Irvington-on-Hudson, 1'<ew York, N. Y. SICKER. Richard (WJ) U02 Taft :he.. La\\'ton. Okla. (Crucible Steel Co. of America) SIDWELL, John L. (M) Box 67. East Palestine. Ohio (H. C. Spinks Clay Co.. Inc.) SIEBER, Karl E. (G) Ha"en Hills. R. R. I. Albion. Mich. (Corning Glass Works) RT, Robert (S) ennings Point Brick Works, Inc. ox 150, Beacon, X. Y. SIEFERT, A. C. (GF) Owens-Corning Fiberglas Corp. Newark, Ohio VOL. 3fi, ~ o. 10 ( Ifj;j7) SIEGRIST, Paul F, (W) III Rovcroft Rd. East S;racuse. "'. Y. t General Electric Co.) SI G\\'ALD. C. R. (\\'1) 4420 San Carlos Ave .. Tampa. Fla. t Elgee Pottery Co.). SIEKMA~X, John F. (R) Aluminum Co. of America 520 X. :>Iichigan Ave., Chicago II, Ill. SIEVERT, Guilio E. (R) 833 Oregon Ave., San Mateo, Calif. (Gladding. McBean & Co.) SIGWART. Harry J.' (G) 732 Beechurst A,e. :>Iorgantown, \\'. Va. (Seneca GIass Co.) SIKES, James W. (W) Florida Tile Industries, Inc .. Box 451 608 Prospect St., Lakeland, Fla. SILK. Karl :>Iessrs. Jury Hollo\\'are Ltd. Brierley Hill, Staffs, England SILVER:>IAK, Alexander (GFI) Uni,'ersitr of Pittsburgh 2525 Cathedral of Learning Pittsburgh 13, Pa. SIL\'ER~IAN, William B. (GFI) OwensIllinois, Technical Center 1700 N. Westwood Ave" Toledo I, Obio SIMAVILLA, Juan M. Cristalerias Rigolleau S. A. Berazatequi, F.C.N.G.R. Buenos Aires, Argentina SDICOCK, J. H. 6 Lovatt Ave., Milebouse ",ewcastle, Stafford, England snnsox, A. L. (GIl Owens-Corning Fiberglas Corp. Toledo, Obio SIMMEN, Fred G. (W) 964 Terrace Blvd., Trenton 8, N. J. (Fairfacts Co.) SIMMINGSKOLD, Bo Glasinstitutet i Vaxjo, Smedjegatan 3 Vaxjo, Sweden SIMMOXS, E. E., Jr. (M) 455 S. Oakland Ave., Pasadena 5, Calif. (Consultant) SIMMONS, George A., Jr. (G) Pittsburgh Plate Glass Co. Res. Labs., Creighton, Pa. SIMMONS, Milton L. (E) Ferro Corp., International Div. 4150 E. 56th St., Cleveland 5, Obio SIMO!\', A. G. (W) 8530 Wentworth St., Sunland, Calif. (Gladding, McBean & Co.) SIMONDS WORDEN WHITE CO. (F. R. Henry) 1101 Negley PI. Dayton 7, Ohio SIMONS, T. Mitcbell, Jr. (WI) 9186 E. Jaylee Dr. Temple City, Calif. (B. F. Wagner & Co.) SIM01'<SEN, Eduardo C. Companhia Paulista de Mineracao Caixa Postal 3008, Sao Paulo, Brazil SIMONSEN, Victor G. Ceramica Sao Caetano S. A. Caixa Postal 278, Sao Paulo, BrazU SDIO",SOX, Robert B. (B) HarH" Aluminum Co. 190th '& Western, Torrance, Calif. SDIPSON, Alexancler J. (W) Westinghouse Electric Corp. Ceramics Section 7325 Penn Ave., Pittsburgh 8, Pa. SIMPSON, Frederick H. (EJ) 1521 W. 51st., Seattle 7, Wash. (Boeing Airplane Co.) SIMPSON, Harold E. (GFI) StateL:niversitv of New York College of Cer~mics, Alfred. X. Y. SIMPSON. John A. (S) F. B. McFarren Ltd. Streetsville, Ont., Canada SDIPSON, John 0 .. Jr, (S) Statesville Brick Co., Box 471 Statesville, X, C. 5I"'CERE. John F.. Jr. (E) 61~ X. Pine St .. :>It. Pro"pect. Ill. I Industria! Publications, Inc.) SI"'CLAIR. Robert R. (Rn 510 S. Osage Ave., Inglewood, Calif. (:>lissouri Refractories Co.) 5I"'GER. Felix IF) Keramos Home. 46. Castlemaine Ave. South Croydoll, Surrey, England (Consultant) ~T\l;LET():\. Eric ()ughtihri,!ge ~ilic" Firehrick Co. ~t,etley. \\or,01'. EngblHI SIRO\'Y, George (El Century Vitrcous Enamel CO. 66H S. Xarragansett Ave. Chicago 38. III. SISKA. Albert H, (El) ~22 E11i- ~t. ..\-hbnd. Ohio (Ferro Corp.) 5ISSO:\S, Gordon H. (S) 320 First 5t. ~Iedicine Hat. .\11".. Canada (Medicine Hat Brick & Tile Co., Ltd.) SITTIG. :>Iarshall tG) .-\merican Lithium Institute, Inc. .\2 ",a,sau ~t .. Princeton. "'. J. SIXT. Lawrence F. (W) Box 443, East Liverpool, Ohio l:Kew Castle Refractories Co.) SJOGREX. John K. (R) Prospect St., Princeton, Mass. (Norton Co.) SKELLY. John C. (w) Trenton Potteries Co. 311 X. Clinton Ave., Trenton, N. J. SKEOCH. Thomas A. 608 Second St., Golden, Colo. SKEOCH, Walter K. (M) Southern California Minerals Co. 320 S. Mission Rd. Los Angeles 33, Calif. SKIXNER, Kenneth G. (WI) 4223 First St., S. E., Apt. 203 Chesapeake Gardens Washington 20, D. C. (:Kaval Research Laboratory) SKI:\NER, Roger D. (G) 10 Lisle Lane. Wi ncb ester, Ky. (Dominion ~linerals Div. Riverton Lime & Stone Co.) SKOGEN, Haven S. (G) 2524 N. Dora, Franklin Park, III. (E. 1. du Pont de Nemours & Co.) SKURCENSKI, Anton (G) H. I. Thompson Fiber Glass Co. 1733 Cordova St., Los Angeles 7, Calif. SKWARLO, Edward (G) 706 S. loka, Mount Prospect, Ill. (Vacuum Ceramics, Inc.) SLAUGHTER, James A. (G) Pittsburgh Plate Glass Co., Box IS Crystal City. Mo. SLAUGHTER, John I. (B) Corning Glass Works Res. & Development Div. Corning, N. Y. SLAYTER, Games (GF) Owens-Corning Fiberglas Corp. Case Ave., Newark, Ohio SLICK, E. E., Jr. (R) Haws Refractories Co., 407 Main St. Johnstown, Pa. SLIFER. Rodney F. (R) Nortb American Refractories Co. 50 Church St., New York 7, N. Y. SLUSS, Olen R. (W) 715 S. Chapel St.. Louisville, Ohio SLYH, Jobn A. (BF!) American Encaustic Tiling Co., Inc. Lansdale, Pa. S:>IALL, Carlton F., Jr. (R) 9 Hawthorne Rd., Cinnamon Hill Bridgeport, Pa. (E. J. Lavina & Co.) ROSTER 10:3 I !I ,I ,I ,: i I S)1ALl.EY. Howard F. (EI) l'tmco Corp.. Research Div. 2554 Greenmount Ave. Baltimore 18. Md. SMELT. J. A. M. Bibliotheekcentrale V. Philips' Gloeilampenfabrieken oven, Holland .:; " William D. (B) . :an.ford Research Institute . Menlo Park, Calif. SMYTH. Adrian F. (Gl So E. Third St .. Corning. :-:. Y. (Corni:!g Gla..s \\ orks) S:-'IITH. Alden J. (\\: R. R. I. Carey. Ohio (Porcelain Products Inc.) SMITH. A. 0., CORP. (W. A. Derin!(er. 3533 X. 27th St., :-'lilwaukee I, Wise. SMITH. Arnold 1\. Pilkington's Tiles Ltd. Clifton Junction, Manchester, Englanu S:-'f1TH, C. A. (RFI) ~Iexico Refractories Co. Bctter Refractories Bldg., Mexico, Mo. SMITH, Dudley C. (GJ Oakdale Dr., Millville, N. ). (Kimble Glass Div., Owens-Illinois, SMITH, Earl R. (R) Marquardt Aircraft Co. 16555 Saticoy St., Van Nuys, Calif. SMITH, Gail (G) Corning Glass Works Eugene C. Sullivan Labs. Corning, N. Y. S~fITH, G. Sherwood Department of Ceramic Technology Pennsylvania State University University Park, Pa. SMITH, Harlan D. (R) Wellsville Fire Brick Co. Wellsville, Mo. SMITH, Harry W. (W) 3608 Gleason Dr., Chattanooga, Tenn. M. Steward Mfg. Co.) S Hillard A. (W1) uchanan Rd., Metuchen, N. J. (Rheem Manufacturing Co.) SMITH, Howard J. (W) 51 Godwin Ave., East Paterson, N. J. (Titanium Alloy Mfg. Div. National Lead Co.) SMITH, H. Russell (M) Box 757, East Liverpool, Ohio - (Croxall Chemical & Supply Co.) SMITH, James United Fireclay Products, Ltd. 140 W. George St. Glasgow C. 2., Scotland SMITH, James N., Jr. (D) "Arborlaen", R. R. 5, New Bern, N. C. (Arborlaen Gardenware) SMITH, J. Ernest (X) 233 Riveria Ave., Sarasota, Fla. (Ceram-I-Cast Corp.) SMITH, John Jacob (Gl 1404 Pacific Ave., Brackenridge, Pa. (Pittsburgh Plate Glass Co.) SMITH, J. Ryan (W) Fairfacts Co., Fairfacts St. Trenton 8, N. J. SMITH, J. Talbot (M) 217 Elm Ave., Morrisville, Pa. (United Clay Mines Corp.) ';MITH, Karl W. (R) Charles Taylor Sons Co. Box 58 Annex Sta. Cincinnati 14, Ohio SMITH, Kenneth E. (DFI) American Art Clay Co. 4717 W. 16th St. 'anapolis 44, Ind. S Kenneth M. (R) .ted States Dept. of Interior Bureau of Mines, College Park, Md. SMITH, Leland (SI) Box 294, Darlington, Beaver Co.. P". (Central Commercial Co.) \c'OL, 36, No. 10 (195i) S~lITH. 1.0"":::- \\, O. Horr.::::~ .::: 4747 E =':~:-:::. :"05 Angeles, Lalli S~f1TH, Peter ',r w, 736 Flor":b J7 Palo Alto, Calif. (Thermc ~: ..:"r:..:s. Utc.) Sl\! ITH, Ric=.&.:": ::> (I) Ferro Ccr:. : ..r East Div. I30 Xa:t.:.r :;. .: ~05 Princess Bldg. howloor: E:::;; Kong ~~IITH. Ric:::-' ~~ R) 215 Sere:.~:. ::-0rr.ing. X. Y. (Corni",: :;--1..'" ',\'Qrks) S~11TH. R. ~ ... 149 Re;..,-.: ~ ."....... Coming, K. Y. (Cornin, :;.o.s;s Works) SMITH. R0".:':~ ,. Box 84~ .~"'"~.:. K. Y. ='S~IITH. RC',,':~: G) 12 WOO-::~'r.' ."-'e.. Coming. N. Y. (Cornin. :;:~,--; Wo,.ks) SMITH. R. T":J:~ 1108 ~la::: =':. Rvlla. Mo. SMITH, Sid::ey :.. 16 Mun"(lt: ~:.. u Roy, N. Y. SMITH & STONE, LTD. (T. Wold) Georgeto..-r.. On:.. Canada SMTTH. Wini= E. (G; 50.10 Jar.~ ~f.nnia, Ohio (O\Ven~-m~) noSM ITH, \"iHian L Georgia Mar:!He Co. Calcium I"roobets Div., Tate, Ga. SMITH, WiIliD: R.. (X) 20 DeLanc:y Dr.. Geneva, N. Y. SMITH-MILLER.. Jorge Casilla 162-D Cristale~ de Chile S. A. Santiago. Ch.ile SMOAK, J. Fk:=her. Jr. Box 2641. c.::1eg1: Sta., Clemson, S. C. SMOCK, Aldet: W. ,G) 413 Greer. .\eres Dr.. H unts\-ille..\1a. ( Arm)' Ba::i.<:ic Y issile Agency) SM OKE. Edw-a.-t J. (W 1 11 Edge'lroOC Rrl.. Metul'hen. N. J. (Rutgers. T:1e State University School of Cenmics) SMOOT, Jack Y. COl) Chamblee. Ga. (Dogwood C=ics) SMOTHERS. W. J. (B) Ohio Brass Co.. Barberton. Ohio SMYLY, James P. !.BIl Box 4123 ~:"..anooga, Tenn. (Americu: Lan Corp.) S:-'IYTH. Harc:': T. iG) Rutgers. The Sate University School oi C=ics !\ew Brun..<T.ck. X. J. SNELL. Richa..-t G. I G) 1717 Calt=e': _~..e., Toledo 7. Ohio (Libbey-OTe:s-Ford Glass Co.) SNIDER, Car: ,-\.. Jr. (G) 4820 Girare Rd.. Pittsburgh 27, Pa. (Kaiser .,,:-,,:mum & Chemica; ~e; Inc.) SNIDER. S~z.:-: Y. (5) 325 Club :"'_ Salisbury, N. C. (Taylor Wy Products Co.) SNOW. L. .Tz:= S' MiffiiD\-Le. :1. (Alliance u: Product Co.) SNOW, Role.: 3 (RF) United S:.= 5:eel Corp. Applied Res. Lall.. Monroeville, Pa. SNYDER. Er::=: B. (RI) Wheeling 5~ Corp. Steuben~ x-.r.h Plant Steuber..-i:'t O!!'io SOBON. Le0t: =: General .'l.bonsi.-e Co. 2000 Coll~ .-\..e.. Xia!(ara Falls. 1\. Y. SOCIETA ITALIANA REFRATTARI MARGHEU AZIONARIA (Domeni- G:aeomelli) Via Ind~ 5:'. Casella Postale 308 Marghen. \"~. Italy SOCIETE FRANCAISE DE CERAMIQUE I Pol Paquin) Service de Documentation 23. rue de Cronstadt Paris XV, France SOCIETE PROFESSIONNELLE DES PRODUITS FRANCAIS DE TERRE CUITE (~l. Jacques Labansatl 23, rue de Cronstadt Paris XV, France SOCIETY OF GLASS TECHNOLOGY (R. \\'. Douglas) "Thornton" Hallam Gate Rd .. Sbeffield 10, Englano SOCONY MOBIL OIL CO, (\V. B. Stevens) 150 E. 42nd St., New York 17, N. Y. SODERSTRUM. William K. (51) 374 Davis Rd., Batavia, Ill. (Structural Clay Products Research Foundation 1 SOLBERG, Archie N. (Bl University of Toledo Research Foundation 2~01 W. Bancroft, Toledo, Ohio SOLOMON, Earl (RI) 1657 Boston Ridge Rd. Orchard Park. N. Y. I Elect ro Refractories & Abrasive.. Corp.) SOLVAY PROCESS DlV.. ALLIED CHEMICAL & DYE CORP. Librarian, Box 271, Syracuse 1. N. Y. SOMANY, O. M. Hindusthan National Gla~s Mfg. Co., Ltd. 2. Wellesley Pl.. Calcutta I, India SOMIY A. Shigeyuki (B) Pennsylvania State University Dept. of Geochemistry University Park, Pa. SOMMER, Alfred (W) 45 John St.. Highland Park. N. J. (Ferroxcube Corp. of America) SOMMERS, Robert H. (W) Hevi-Duty Electric Co. 2040 W. Wisconsin Ave. Milwaukee I, Wise. SOMMERVILLE, J. L. (GI) 338 Wood St., Clarion, Pa. IOwens-llIinois) S01\DLES, Merrill C. (W) 38 Fifth Ave., Sistersville, W. Va. (Paden Cit)' Pottery Co.) SONTZ, Arthur (R1) 8054 S. Crandon Ave., Chicago 17, Ill. (United States Steel Corp.) SOSMAN, Robert B. (Honorary, BFI) Rutgers, The State University School of Ceramics 1\ew Brunswick, N. J. SOUTH, Furman, Jr. (R) Lava Crucible-Refrnctories Co. First National Bank Bldg. Pittsburgh 22. Pa. SOUTHERN POTTERIES, INC, (H. W. Kihler) Box 279 Erwin, Tenn. SOWERS, Robert M. (G) 8 Edgerton Ln.. Dearborn, Mich. (Ford Motor Co.) SOWMAN, Harold G. (R) Minnesota Mining & Mfg. Co. Central Res. Lab. 2301 Hudson Ave., St. Paul 6, Minn. SOXMAN, Edwin J. (I) Box 117, Alfred, N. Y. SPAIN, Richard W. (G) 2315 Drummond Rd., Toledo, Ohio (Owens-Illinois) SPANGENBERG. William C. (M!) 756 Auburn Ave., Buffalo 22, N. Y. (Titanium Alloy Mfg. DI\. National Lead Co.) SPANOUDlS, Louis (G) Kimble Glass Co. 1700 N. Westwood Ave .. Toledo, Ohi" SPARKS, Edgar W. (W) 406 Unaka Way, Erwin, Tenn. ROSTER 105 ,t l j It I,; I'. , Ii ! SPARROW, Paul F. (R) 244" Old Washington Rd. Bridge"ille, Pa. ( :\orton Co.) SPElL, Sidney (GI) Johns-Manville Research Center Manville, N. J. CE, C. F. (E) _ 5 Hartford St., Worthington. OhiD hicagD Vitreous Corp.) S . _'CE, Harold 1. (\\") ~2" W. Islay St. Santa Barbara, Calif. SPE;\CER, Charles D. (GF) 2113 TaylDr Rd., Cleveland 12, OhiD (Lamp Dept., General Electric Co.) SPENCER-STRONG, G. H. (EFI) 109 Witherspoon Rd., Baltimore 12, !\Id (Pemco Corp.) SPENGLER, H. H. (G) General Electric CD. Lamp Di,., Glass TechnDIDgy Lab 1133 E. 152nd St., Cleveland 10, Ohio SPERRIXG, Richard F. 111-.-\ :\. :\inth St., Festus. "10. SPINKS, H. C., CLAY CO., INC. (R. B. Carothers) Box 829 Paris, Tenn. SPINNER, Sam (G) National Bureau of Standards Washington, D. C. SPIRES, Stephen T. (Rl) North American Refractories Co. Mt. Union, Pa. SPIRKO, Edward J. Box 827, Alfred, N. Y. SPLANN, Mary Theresa (G) Corning Glass Works, Coming, N. Y. SPOERRY, Henry J. Schmidheiny 6: Co., Ltd. Heerbrugg, (St.G.) Switzerland SPORE, William D. (W) Midway Lane, East Liverpool, Ohio (Homer Laughlin China Co.) SPRIGGS, Richard M. 4f W. Nevada St., Urbana, Ill. T, Ira E. (WFI) . T. Vanderbilt Co., 230 Park Ave. ew York 17, N. Y. SPROUL, James D., Jr. Delevan, N. Y. SPURCK, Richard F. (W) Manford Ln., Wilton, Conn. (Machlett Laboratories) SPYUT, Albert B. (G) Raytheon Manufacturing Co. 55 Chapel St., Newton, Mass. SQUARE D CO, (Ralph E. Hanna) Molded Insulation Div., Peru, Ind. SQUIER, Arthur A. (S) 1616 Walnut St., Philadelphia 3, Pa. (Distributor) SQUIER. Charles A. (G) Owens-Illinois 1700 X. Westwood Ave. Toledo 7, Ohio SRl:OGA, Valerio Industrias Wilde S.R.L. San Martin 683 Buenos Aires, Argentina STAATLICHE PORZELLANMANUFAKTUR BERLIN (Gerhard Muller) Hartmannstrasse 1-3 (13a) Selb/Oberfr. U. S. Zone, Germany STAATS. Henry N. (E) Ana1co Services Co. 6306 X. Cicero A,e., ChicaR'o 30. 111. STADDE:\. Thomas B. (WI) Metal & Thermit Corp.' Carteret. !\. J. t iLER, Leo E. (G) 57 Plymouth St., Windsor, Conn. artford-Empire Co., iv. Emhart Mfg. Co.) STAFFICKER, Charles F. (G) 506 Grandview Ave., Vineland, N. J. (Kimble Glass Co.) \'01.. :~ti, X o. 10 ( HJ,i j') STAFFORD, Ray (M) Southern Calif. Minerals CD. 320 S. Mission Rd. _ Los Angeles 33, Calif. STAFFORD, W. L. (RFl) JDhns"lanville Research Center Box 159, Manville,~. J. STAHMA!\!\, John A. (B) 4275 Verdugo Rd. Los Angeles 65, Calif. (Gladding, McBean & Co.) STALEGO, Charles J. (G) 227 N. Fifth St., Newark, OhiD (Owens-Corning' Fiberglas CDrp.) SL\LTER, Thoma, L. (EI) :"1: Xorthern Pky., Baltimore I~. ~ld. I Pemco Corp.) STA!\iPS, Murra)' R. (W) Canadian PDrcelain Co. Ltd. BDx 428, HamiltDn, Ont .. Canada STANDARD BRICK & TILE CORP. (Clifford A. Kleymeyer) 123 !\. W. Fourth St. Evansville 8. Ind. STANDARD ULTRAMARINE & COLOR CO. (L. F. May) Huntington 18, W. Va. STANGL, J. M. (W) Stangl Pottery, Trenton 4, N. J. STANGL POTIERY (J. M. StanR'1) Trenton 4, N. J. STANISLAW,. T. Stanley (W) Box 354, Centerport, L. I., N. Y. (Sylvania Electric Products. Inc.) STAXLEY. David E. Box 106, Alfred. N. Y. STANLEY, George V. (E) 2752 W. 90th PI. Evergreen Park 42, Ill. (Crane Co.) STANLEY, Robert J. (G) M. H. Detrick Co., 10600 Puritan Ave Detroit 38, Mich. STANNARD, Wilford T. (D) J. A. Dedouch Co., 608 Harrison St. Oak Park. Ill. STANSFIELD, James R. D. (S) Streator Brick Co. Div. Hydraulic-Press Brick Co. Streator, Ill. ST:\1\TON, Francis. Jr. Box 827. Alfred. N. Y. STANWORTH, John Edwin 74 Ashlawn Rd. Rugby. \\'arwick. England (British Thomson-Houston Co., Ltd.) STAPLETON, Robert E. (W) 22 Chestnut St., Franklinville. N. Y. (Hi-Q Div., Aerovox Corp.) STAPP. John A., Jr. (G) l'nion Carbide Corp.. Silicones Di,. Box 44, Tonawanda. N. Y. STAR PORCELAIN CO. (Daniel W. Luks) Muirhead Ave., Trenton 9, N. J, STARK CERAMICS. INC. (J. H. Stewart) Box 230 Canton 1. Ohio STARK. G. E. Carlos (W) Glarlding. McBean & Co. 2001 Los Feliz Blvd. Los An~eles 39, Calif. STARK. W. F. (E) Promat Division. Poor & Co. S51 S. Market St., Wpukegan. Ill. STARKEY. Daryle D. (M) R. R. 1. Willard, Ohio (Starkey "fachinery. Inc.) STARKEY. Edward A. (M) 1068 Woodhill Rd .. Mllnsfield, OhiD (Starkey Machinery. Inc.) STARKEY, Elmer A. (R) 22397 Fairlawn Circle. Apt. 10 Fairview Park 26, Ohio (North Americlln Refractories Co.) STATHIS. Andrew W. (RI) 5917 Cary. Cincinnati 24. OhiD (Charles Ta\'lor Sons Co.) ST.-\ LOT. AUR'ust (\\') 264 Water St.. Perth Amboy, N. J, STAUFFER CHEMICAL CO. (M. P. Kerins, Jr.) 380 MadisDn Ave., New York, N. Y. ST.-\lFFER, Kenneth H. B. (\\') ~q X. \Yater St., Spring Gro"e, Pa. I,Continental Ceramic Corp.) ST:\ \'ROL\KIS, J. .-\. tB) 211 June Dr., Pittsburgh 36, Pa. I Crucihle Steel Co. of America) STE.-\RXS, \\'illiam E. (E) .-\. O. Smith Corp. 3533 1\. 27th St.. Milwaukee, Wise. STECK. :\!fred B. I B) 35 Lincoln St .. ~[elrnsc 76. ~Ia" I ~I etal1ur!(ical :\""ciates, Inc. 'I STECK, C. O. (G) F. J. Kress Box Co., One 28th St. Pittsburgh 22, Pa. STEELE, A. Preston, Jr. (5) J. C. Steele & Sons, Inc. Box 951, Statesville. 1\. C. STEELE, C. X. (S) J. C. Steele & Sons, Inc. Box 951. Statesville, !\. C.. STEELE. F, "fontgomery (S) 1. C. Steele & Sons, Inc. Box '151. Statesville, N. C. STEELE. G. Allen (R) 101 MacGregor Dr. Trotwood. Ohio (Simonds Worden White Co.) STEELE, Harry L. Shorter & Son Ltd., Copeland St. Stoke-on-Trent, England STEELE, Howard E. (G) Westinghouse Electric Corp. Hoult Rd., Fairmont, W. Va. STEELE, Ho~ P. (E) Benjamin Electric Mfg. Co. Des Plaines, Ill. STEELE, J. C., Jr. (SF) J. C. Steele & Sons, Inc. Statesville, N. C. STEELE, J. C., a: SONS, INC, (J. C. Steele, Jr.) Statesville, N. C. STEELE, Richard E. (M) Ram, Inc., 1064 W. Fifth Ave. Columbus 8, Ohio STEELE, William Perrin (5) Pine Hall Brick & Pipe Co. Winston-Salem, N. C. STEFL, Donald J. (R) Freeport Brick Co. Box 402, Freeport, Pa. STEIL, Roy C. (G) 3450 Garfield St., Denver 5, Colo. (Woodbury Chemical Co.) STEI!\IKE, Frank C. (RI) Walsh Refractories Corp. 101 X. Ferry St., St. Louis, Mo. STEIX, Colin H. John G. Stein & Co. Ltd. Bonnybridge, Scotland STEIN, Ronald C. Messrs. John G. Stein & Co., Ltd. Bonnybridge, Scotland STEIN, Sidney J. (B) International Resistance Co. 401 N. Broad St., Philadelphia 8, Pa. STEINBOCK, E. A. (R) Whip-Mix Corp., 411 W. Avery St. Louisville 8, Ky. STEINER, Harry C. (G) General Electric Co. Power Tube Dept. Schenectady 5, N. Y. STEIXHOFF, Fred L. (SFI) Brick 6- Clay Record-Ceramic Industry 5 S. Wabash, Chicago 3, III. STEIXROEDER. Fritz Didier-Werke A. G.. Lessingstr. 16 Wiesbaden, Germany STELLE, John A. (S) Arketex Ceramic Corp., Brazil, Ind. STEXQl'IST, Donald R. (B) 1105 GillmDre. Apt. 6 Richland. Wash. (General Electric Co.) STEPHEXS. Richard A. (R) General Refractories Co. 1520 Locust St .. Philadelphia 2, Pa. ROSTER 10;- II I ;; TEPHE~SO~{ William B. (B) General J::lectric Co. Bldg. 100, AGT, Cincinnati IS, Ohio TERLING CHINA CO. (William T. Pomeroy) East Liverpool, Obio TERLING GRINDING WHEEL CO. '. R. Morgan) Box 801, Tiffin, Ohio NG, Harry S. (G) ing Glass Works rrodsburg, Ky. TERRY, J. Patrick (RJ) 4219 Woodlawn Ave., Seattle 3, Wash (Boeing Airplane Co.) TERRY, W. Michael (E) 5124 Fiftb K. E., Seattle 5, \\"ash. (Boeing Airplane Co.) TETSOK, Harold W. (B) R. R. 2, Painted Post, N. Y. (Corning Glass Works) TETSON, William C. (WI) Box 44, Saxonburg, Pa. (Saxonburg Ceramics) ,TETTINIUS, K. E. (W) Lapp Insulator Co., Inc., Le Roy, N. Y. TETTKER, Donald H. (GI) 976 Center Ave., Lancaster, Pa. (Radio Corp. of America) TEUBENVILLE POTTERY CO. (W. ]. Mould) Box 1030 Steubenville, Ohio .TEUERNAGLE, ]. H. (G) Broclcway Glass Co., Inc. Wood St., Brockway, Pa. TEVENS, E. G. (X) 1750 Sycamore, Apt. C El Segundo, Calif. (North American Aviation, Inc.) ;TEVeNS, Frank ]. (WI) 414 Pzospect St., Nutley 10, N. ]. (Isolantite Mfg. Corp.) ;TEVENS, Joe (R) Murray Refractories Co., Box 338 Murray, Utah iTEVENS, L. M. (R) 6 7 Alabama St., La Crescenta, Calif dding, McBean &: Co.) S, Robert P. (RI) lcago Fire Brick Co. 1625 W. 104th PI., Chicago 43, III. TEVENS, W. B. (W) Socony Mobil Oil Co. 150 E. 42nd St., New York 17, N. Y. ;TEVENSON, James K., Jr. (RI) R. R. 2, Mundelein, Ill. (Norton Co.) ;TEVENSON, Samuel (W) 1967 Grafton Rd., Elyria, Ohio (Harshaw Chemical to.) TEVENTON, Kenneth ]obn Steventon & Sons Ltd. Cledford Works Middlewick, Cheshire, England TEWART, Isaac (G) 21 Porter Rd., West Orange, N. J. . (Consultant) TEWART, James (M) National Engineering Co. Simpson Mix-Muller Div. 549 W. Washington Blvd. Chicago 6, III. .TEWART. J. H. (S) Stark Ceramics, Inc., Box 230 Canton 1, 'Ohio :TEWART, John A. (GI) 419 Locust Ave.. Washington, Pa. (B. F. Drakenfeld & Co., Inc.) TEWART, Malcolm (M) Commercial Minerals Co. 310 Irwin St. San Francisco 7, Calif. TEWART, Wilfred H. (R) 15 E. Elizabeth St., Schererville, Ind. (Sunbeam Corp.) ' W. C. (W) _ S. Wilson Blvd. Clemens, Mich. t. Clemens Pottery Co.) TILL. Henry P., Jr. (R) 31 Stoneleigb Rd., Worcester 6, Mass. ( Korton Co.) OL. 36, :'\0.10 (1957) STILLWATER CLAY PRODUCTS CO. (J. P. Duffle) Lock Drawer 32 Uhrichsville, Ohio STILSOK, Charles E. (B) !lox 13, Cedar Lake, Mich. (General Electric Co.) STOCK, Donald F. (R) 289 Maxwell Dr., Pittsburgb 36, Pa. (Harbison- Walker Refractories Co.) STOCKDALE, George F. (G) 49 Corning Blvd., Corning, N. Y. (Coming Glass Works) STOCKSLAGER, Tbeodore F. (W) Carborundum Co.. 24800 Lakeland Blvd. Cleveland 32, Ohio STODD:\RD, Stephen D. (RI) 1526-B 43rd St.. Los Alamos. ~. ~f. (Los Alamos Scientific Lab.) STOEN, Roger C. (SI) Cannelton Sewer Pipe Co. Cannelton, Ind. STOHL, Alfred A. (W) 374 North St., Sun Prairie, Wise. (Wisconsin Porcelain Co.) STOHL, L. A. (W) Wisconsin Porcelain Co. 120 Lincoln St., Sun Prairie, Wise. STOIA. John Z. (WJI) 314 W. Witherbee, Flint, Mich. (A C Spark Plug Div. General Motors Corp.) STOLLER, Arthur I. (W]) Radio Corp. of America Princeton, N. J. STOLTE, Norman H. (EI) 3974 Orchard Rd. Cleveland Heights 21, Ohio (Harshaw Chemical Co.) STONE, Alan (R) 77 Houghton Circle, Corning, N. Y. (Corning Glass Works) STONE, Benjamin (W) California Crafts 43340 N. Gratiot, Mt. Clemens, Mich. STONE, Conrad A. (G) 93 S. Remington Rd. Bexley, Columbus 9, Ohio (Federal Glass Co.) STONE, C. P. Ferramic Industries. Ltd. 25 Hydeway, Welwyn Garden City Hens, England STONE, F. R. (R) Canada Firebrick Co., Ltd. 4741 St. Ambroise St. Montreal, Que., Canada STONE, Robert J. (M) Jobn W. Higman Co. 24 State St., New York 4, N. Y. STONE, Robert L. (BFI) Dept. of Ceramic Engineering University of Texas, Austin 12, Texas STONE, S. A. (M) Deister Concentrator Co. 901 Glasgow Ave., Fort Wayne, Ind. STONG, Guy E. (G) 926 W. Water St., Elmira, N. Y. (Corning Glass Works) STOOKEY, Stanley D. (GF) 145 Pritchard Ave., Coming, N. Y. (Coming Glass Works) STOOPS. Robert F. (BI) Metallurll'ical Products Dept. General Electric Co., Box 237 Roosevelt Park P. O. Detroit 32, Mich. STORER-FOLT, John P. (RJI) I Benlamond Ave., Apt. E. Toronto 13. Ont., Canada (Refractories Engineering & Supplies. Ltd.) STOTT. A. E. Edward Johns & Co.. Ltd. Armitage Sanitary Pottery Nr. Rugeley, Stafford, England STOTT, Joseph A. (R) North American Refractories Co. 1012 National City E. Sixth Bldg. Cleveland 14, Ohio STOUT, John R. (W) 706 E. Franklin, Macomb, III. (Illinois Edison Porcelain Div. McGraw Edison Co.) STOUT, Joseph V. (E) 102 S. Fourth Ave. Highland Park, N. ]. (Metal & Thermit Corp.) STOl'T, Lester L. (S) Ohio State University Research Foundation Columbus 10, Ohio STOVER, Edward R. (B) General Electric Co. Research Lab. 247 MB Box 1088, Schenectady 8, N. Y. ST. PIERRE, Philippe D. S. (B) General Electric Co., Research Lab. Metallurgy & Ceramics Div. Box 1088, Schenectady, N. Y. STRADLEY, J. Grant (I) 1950 Korbel Ave., Lot 93 Columbus 11, Ohio STRADLEY, Norman (El) Minnesota Mining & Mfg. Co. 2301 Hudson Rd., St. Paul 6, Minn. STRAIGHT, Lee H. (M) Straight Engineering Co., Add, Iowa STRAIN, R. E. (E) Alliance Ware, Ltd. Box 550, Vancouver, B. C., Canada STRATTON, Warren 3711 15th N. E., Seattle 5, Wash. STRATTON, Mrs. W. B. (D) Pewabic Pottery, 10125 Jefferson Ave. Detroit 14, Mich. STREATOR BRICK CO., DIV. HYDRAULIC-PRESS BRICK CO. (James R. D. Stansfield) Streator, III. STRIMPLE, J. H. (B) National Lead Co., Titanium Div. Box 58, South Amboy, N. J. STRINGFELLOW, Allen E. (W) 544 Woodland Ave., Haddonfield, N. ]. (1-T-E Circuit Breaker Co.) STROBACH, Carl G. (E) Rheem Mfg. Co. 7600 S. Kedzie Ave. Chicago, III. STROD, Arvid J. (MI) Industrial Metals Improvement Co. The Park BldR., Pittsburgh 22, Pa. STROH. Donald G. (W]) 303 N. Whitney St., Carroll, Iowa (Universal-Rundle Corp.) STRONG, Kenneth B. (W) 46M Belmont Park Terrace Nashville 12, Tenn. (Titanium Alloy Mfg. Div., National Lead Co.) STROTT. AdoIr ]. (R) 597 Crooks Ave.. Clifton, N. J. (National Beryllia Corp.) STROUD, Harold L. (M) 2909 Bembridge Rd., Royal Oak, Mich. (Champion Spark Plug Co.) STROUP, Philip T. (R) Aluminum Co. of America Box 772, New Kensington, Pa. STROUPE, Howard E., Jr. (WI) Wheeling Tile Co., Wheeling, W. Va. STRUCTURAL CLAY PRODUCTS INSTITUTE (Harry C. Plummer) 1520 18th St.. N. W. Washington 6. D. C. STRUCTURAL CLAY PRODUCTS RESEARCH FOUNDATION (Paul V. John!Kln) Geneva, III. STUBBINS. William J. (W) Rio Atoyac 26-14, Mexico 5, D. F. (Consultant) STUBBS, John M. (M) 45 Laubert Rd .. Conshohocken, Pa. (National Gypsum Co.) STUCKEY, Jasper L. (X) 1911 Sunset Dr., Raleigh, N. C. (North Carolina Dept. of Conservation & Development) ROSTER 109 I I ;TUNTZ, Robert P. (R) Babcock & Wilcox Co. 105 S. laSalle, Chicago 3, Ill. ;TUPAKOFF DIV. CARBORUNDUM CO. I R"hert .\. Barr). Latrobe. Pa. iTeR:'I. \\'illiam F. . 631. .\lfred. X. Y. ; Charles A. (R) Roxbury Rd., Forest Hills Pittsburgh 21, Pa. (Vesuvius Crucible Co.) ;CBB.\R.-\O. Ele,warapu C. <>nlo'-:\ Stnendale Dr. Pittsburgh 21. Pa. ;UBRAH?>!A:-\y ..\M, Sanga V. (G) I-H Arlene Village, ~lillville, K. J. (T. C. Wheaton Glass Co.) ;eBRAMAXIAX. D. R. Burn & Co. Ltd. Refractory & Ceramic Group 12 ?>Iission Row. Calcutta I. India >UCH CLAY CO. (M. M. McHose. Jr.) Box 47. Perth Amboy, N. J. ;ULE:\S. Henry A. (M) Ceramic Supply Co., Div. Ferro Corp. Box lSI, Crooksville, Ohio 5ULLIVAN, Eugene C. (GF) Corning Glass Works, Coming, N. Y. ;CLLlVAX, James D. (El -1272 :\. 24th PI.. Milwaukee 9, \Vise. (A. O. Smith Corp.) >ULLIVAN, John D. (BFI) Battelle Memorial Institute 505 King Ave., Columbus I, Ohio >ULLIVAN, Joseph C. (G) 38 Fulton St., Corning, N. Y. (Coming Glass Works) >ULLIVAN, Paul A. (GI) 624 Adeline Dr., Webster, N. Y. (Bausch & Lomb Optical Co.) >UMMERS, E. W. (G) Owens-IIlinois, Technical Center 1700 N. Westwood Ave. Toledo 7, Ohio ;.LL, Ferrall N. (E) Henry St., Uniondale, L. 1., N. Y rdwick, Hindle, Inc.) >U ,K. H. (GF) 2131 Lindsay Rd., Pittsburgh 35, Pa. (Westinghouse Electric Corp.) >UPAR Ceramic Institute Bandun!:. Java, Indonesia >UR ENAMEL & STAMPING WORKS, LTD. (M. M. Sur) 24 Middle Rd., Entally Calcutta 14, India mR, M. M. Sur Enamel & Stamping Works, Ltd. 24 Middle Rd., Entally Calcutta 14, India >URFACE COMBUSTION CORP. (Harvey C. Weller) 2375 Dorr St. Toledo 1, Ohio 5URFLEET, Harold Kaylene Laboratories, Waterloo Rd. London, N. W. 2, England (Kaylene (Chemicals) Ltd.) >UTHERLAND, Clark (5) Robinson Clay Product Co. 65 W. State St., Akron 9, Ohio iUTHERLAND. Frank R. (RI) 511 Rainbow Dr., Kokomo, Ind. (Haynes Stellite Co.) mTPHEN, F. G. (X) 2605 Central Ave., Middletown, Ohio >UTTON, Paul M. (G) Corning Glass Works. Corning, N. Y. iVTTOX. Willard H. (B) General Electric Co.. Rm. 3872, MOSO ;t:WX.31 f)~ Chestnut St., Phila,lelphia 4. Pa. W. J. (RI) igh St., Alfred, N. Y. te University of New York, ollege of Ceramics) ;VEC, I. I. (WFl) C..;a>';ic industry 5 S. Wabash Ave., Chicago 3, Ill. SVIKIS. Voldemars D. (R) Dept. of ~fines & Tech. Surveys Industrial ~finerals Div.-Ceramic Sect. 40 Lydia St.. Ottawa. Olll.. Canada S\\'.-\IX. Arthur B. (G) Owens-Illinois 1700 X. \\'est wood A "1'. Toledo 7. Ohio S\\'.\IX. Richard S. (GJ) 509 Kibler Ave .. Kewark, Ohio (Owens-Corning Fiberglas Corp.', SWALM, Phaon H. (W) Box 178, Kingston; Ont., Canada (Frontenac Floor & Wall Tile Co., Ltd) S\\'AXSOK, Carl H. 770 Techll'ood Dr., ~. \\' .. Allan'a. G.1 S\\'.\XSOX. Leroy ~l. iRJ) 15 CaTf,lina ~t.. Tame,t"\\1l. X Y. I X"no1l Co.)' . S\\.\XSOX. \\'arner D. (5) :'lelro1'"lita11 Brick.' Inc. Be,,:;emer. I'a. S\\"E.'\RIXGEX, Jack c. (G) rnited Can & Glass Co. Box 90, Hayward, Calif. SWEITZER. Mark (W) 747 X. Mentor, Pasadena, Calif. (S. Paul Ward, Inc.) S\\,EXTZEL. John P. (RJ) 130 Beacon Hill Dr .. ~!etuchen. X. J. (Carborundum Co.) SWEO, Benjamin J. (EFI) Ferro Corp. 4150 E. 56th St., Cleveland 5, Ohio SWICA, Joseph J. Box 165, Alfred, N. Y. SWICKER, Victor C. (GF) 907 Floral Dr., Whittier, Calif. (Consultant) SWIFT, Howard R. (GF) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio SWIGART, Joseph J. (M) 3014 Middletown Rd., Pittsburgh 4, Pa. (Vitro Rare Metals Co.) SWINDELL-DRESSLER CORP. (Philip Dressler) Box 1888 Pittsburl('h 30, Pa. SWI~EHART, David C. 808 E. 42nd, Apt. D. Seattle 5. Wash. SWINNERTON, Bertram B. (W) 157 Hampden Park, Tiffin, Ohio (American Raoiator & Standaro Sanitary Mfg. Co.) S\VIXXERTOX. George R. (~n Box 944, Alliance, Ohio (~foore & Munger) SYLVANIA ELECTRIC PRODUCTS, INC. (B. S. Ellefson) 1740 Broadway, New York 19, N. Y. SYLVESTER. George R. (!\fI) Sylvester & Co. 17706 Miles A,e., Cle"eland 28. Ohio SY:\:\R. Elizaheth A. (W) Synar Ceramics, Inc. Box 924. Musko!:ee, Okla. SZYMASZEK, Jan Walter (R) 121 Muir Ave. Niagara Falls. Ont.. Canada (!\fetals Research Lahs. Electro Metallurgical Co.) T TAB ATA, Seiichi Sasaki Glass Mfg. Co., Ltd. I.I-Chome Yokokawa-Bashi Sumicla-ku, Tokyo, Japan T\ELER. David H. (EJ) ~f)0 Elton :he.. Bronx 51. X. Y. (Seaporcel Metals. Inc.) TAILBY, Roland V. (WI) Stylon Corp., Milford, Mass. TAJKOWSKI, Edward G. (G) General Electric Co. Silicone Products Dept Waterford, N. Y. T.-\K.\H.\SHI. Kakuichiro (F) :\ippon Glass Co. Ltd. Xo. 20, I-chome Shiba Shinbashi :'linato-ku. Tokyo, Japan TALWALKAR, T. W. 8 Bagmati Rd., Jamshedpur, India (Tata Iron & Steel Co., Ltd.) TA~BERG, Ragnar Drammens Glassverk Drammen, Xorwa" T-\X :\ER. JanH" T.. Jr. 2453 \\'inche:;tcr Ct.. Raleigh, :\. C- TAO. Yung (G) SOl S. Garfield St., Burlington, Iowa I S'""'ania Electric Products, Inc.1 T.\R;\CKl. \\'alttr.1. 1\\'11 841iC Loch Raven Blvd. Towson 4, !\ld. I Friez Instrument Di\'. Bendix A";ation Corp.) T \RX()l'OL. ,Iilt,'n S. (G'I 943 Xinth :he., Brackenridge, Pa. (Pittsburgh Plate Glass Co.) T.\SIl. Daniel B. I:.n 516 \\'. Bri!:htwood St. :'Ionterey Park. Calif. I Southern California Minerals C". 'I TASHIRO, Megumi Institute for Chemical Research Kvoto Uni"ersity Y~shidahon machi, Sakyoku Kyoto, Japan TATE. Frank E. (WI) 310 Tenth St., Lincoln, Ill. (Stetson China Co.) T.-\TE!\f. William A. (R) 7 Willow Ln., Carle Place, N. Y. CU. S. Navy) TATXALL, R. Francis Box 827, Alfred, N. Y. TAl'BER. Charles B. (Bl 921 Signal Rd.. Signal !\lountain, Tenn. (American Lava Corp.) TAl'BER. John A. (RT) 31'l0 Madlower Rd. Ph'mouth ~leeting. Pa. (E. 1. La"ino & Co.'I T.-\l'BIjEB. :.ranin E. (R) Kaiser Aluminum & Chemical Sales. Inc. 21 057 Seahury AYe. Fain'iew Park 26. Ohio TAYLER, John B. (W) Louisville Pottery Co.. Inc. 228 E. Bloom, Louisville 8, Ky. TXYLOR, Alan W. (8) Pennsvh'ania State t'niversity Dept. 'of Ceramic Technology t'niversitv Park, Pa. TAYLOR, Charles D. (S) 219 Corriher Ave.. Salisbury, N. C. (Tavlor Clav Produets, Inc.) T:\YLOR. Charies H. (R) 8 E. Sutton .\ve.. Moorestown, :\. J. I R. C. Remmey Son Co.) T.\YLOR. Don (G) T. C. \Vheaton Co .. J.1i\hille. X. J. T\YLOR, Donald E. (R) 2522 Rhodes Dr.. Au!:usta. Ga. I Babcock & Wilcox Cn.) T.\ YLOR. Ernest C. 000 :'lain St.. Brock\\ ay. Pa. T\YLOR. Fran ((;) Gay Fad Studios, Lancaster, Ohio T.\YLOR. Hiram D. (Bl Oiamonite Prodnct, :\Iannfacturin~ Co. Shre",,'. Ohio T.\ YLOR. Howanl P. 1\\'1) Centralah DiY.. Glohe-Union Inc. "00 E. Keefe .\"1'.. :'lilwaukee 1. \\'j,c TAYLOR. J. J. (W) Ohio Brass Co., Barberton, Ohio T \ YLOR. Kenneth ~f. (R) ln45 Ri"er Rd .. Lewiston, N. Y. (Carhorundum Co.) TAYLOR. Louis J. (W) Laboratory Equipment Corp. Box lSI, St. Joseph, Mich. ROSTER 11 J I I. a 'LO'R, Kelson W. \BF) ~innesota Mining & Mfg. Co. Fluorochemicals Div. 900 Bush Ave., St. Paul 6. ~linn. LOR. Richard A. (S) Clay Products Assn. of the Southwest 109' Perry-Brooks Bldg., ,-\ustin, Texas ,'.Robert B. (S) ral CIa" Products , h Foundation, Geneva, Ill. : L ,Rohert M.. Jr, (R) 1210 N. Jefferson, ~lexico, ~lo. I A. P. Green Fire Brick Co.) (LOR. SMITH & TAYLOR CO. IE. P. Wright) Chester, \V. Va, ,'LOR. Thomas J. (R) 816 Sterner Mill Rd., Treyose. 1'a. I R. C. Remmey Son Co,) ,'LOR. Walter E .. Jr. (W) Thomas Works Delta Star Electric Div. H. K. Porter Co .. Lisbon, Ohio YLOR. William C. (GF) Coming Glass Works, Corning, N. Y. AGUE, A. D, (R) Babcock & Wilcox Co., Box 923 Augusta. Ga. AGUE BRICK & TILE CO. (L. R. Boyd, Jr.) Box 329, Teague, Texas -\GUE, Jo M., Jr. (G!) Owens- Il1inois Technical Center 1700 N. Westwood Ave., Toledo 7, Ohio AGUE, William T. 209 McCord St., Marietta, Ga. ETER. John N. (E) 677 Wilmot Rd., Deerfield, 111.-'(Thomas C. Thompson Co.) ETOR, Paul (BF) 72 E. Main St., Somerville, N. J. (Central Commercial Co.) .FFT, Glenn C. (5) Claycraft Co., Shawnee, Ohio FFT, Phillip W. (SF!) Claycraft Co., Box 866 US16,OhiO illan! H. (5) aft Co., Upper Sandusky, Ohio :GELLABORATORIET (Brick Laboratory), (Christer Enberg) Drottning Kristinas val 45 Stockholm 0, Sweden .ICHMANN, Henry F. (G) Henry F. Teichmann, Inc. Box 1705, Pittsburgh 30, Pa. :ICHMANN, Newton N. (G) 316 Hardy Dr., Bridgeville, Pa. (Henry F. Teichmann. Inc.) 'NNERY, liLt. Victor 1. (BJ) U.S. Army Signal Eng. Labs. Chemical Physics Branch Ferroelectrics Unit Ft. Monmouth, N. J. 'RMAN. Mark J. (R) Babcock & Wilcox Co. 135 Cedar St., New York 6, N: Y. ,RRY. Griffin E. (E) 602 E. Willow, Wheaton, Ill. (Hotpoint Co.) ~RRY, Jack H. (E) 4321 Fairfield Ave., Fort Wayne, Ind. (General Electric Co.) ~XAS BRICK CO. (W. T. Gill, Jr.) Box 510, Brownwood, Texas :::XAS VITRIFIED PIPE CO. (Paul E. Hoey) Box 117 Mineral Wel1s, Texas 'iATCHER GLASS MFG. CO., INC. (Roy S. Arrandale) 1901 Grand Central Ave., Elmira, N. Y. :-IEOBALD, Erwin F. (5) e1516-18th St., N. W., Canton 3, Ohio ropolitan Brick, Inc.) , Karl B. (M) 9 Talbot St. Kew Gardens, L. 1., N. Y. (Titanium Al10y Mfg. Div., National Lead Co,) .1L. :Hl, No. 10 (HI,),) THIELKE. Norman R. (B) National Carbon Co., Research Labs. Box 6116, Cleveland 1. Ohio THIE~l:\NN. John W. (WI) Alift Oil".. U. S. Stoneware Co Box 119. Orrville, Ohio THIEMECKE, Harry W. ()\IFI) Homer Laughlin China Co. Newell. W. Va. THIESS, L. E, (WF) I nsulator Dept.. General Electric (0. Box 57. Baltimore 3. ~ld. THOMAS. Charles A. G. E. J. & J. Pearson. L.td.. Firebrick Works, Stourbridge. England THOMAS, Charles W. (Honorary) Clifton House, Old Swinford Stourbridge. England (E. J. & J. Pearson, Ltd .. Firehrick Works) THOMAS. Dayid .V. (WI) Tycer Pottery, Inc. Armstrong St., Roseyille. Ohio THOMAS. Everett A. (R) 2i03 Shaffer Ave .. Cincinnati 11, Ohio (Chas. TaYlor Sons Co.) THO!\I:\S. Ge~rge L. (G) Holophane Co.. Inc., Newark. Ohio THOMAS. H. H. (M) 35 Highboy Court, Red Bank, N. J. (Pemco Corp.) THOMAS. Richard V. (R) 25 Catharine St., Worcester. Mass. (Norton Co.) THOMAS, Robert B. (GJ) )I; ational Bureau of Standards \Vashington 25, D. C. THOMAS, Robert H. (B) 2160 Delaware Dr. Cle"eland Heights 6, Ohio (Case Institute of Technology) THOMAS WORKS DELTA-STAR ELECTRIC DIV. H. K. PORTER CO. (Frank Mason) Lisbon, Ohio THOMASO)l;, James F. (WJI) R. R. 4. Spartanburg. S. C. (Kohler Co.) THOMPSEN. Robert S. (R) 2418 Ruby Dr., Augusta. Ga. (Babcock & Wilcox Co.) THOMPSON, A. Paul (RF) Research Laboratories Eagle-Picher Co., Joplin, Mo. THOMPSON. Charles W. (R) 216 Dell St., Johnstown, Pa. (Bethlehem Steel Co.) THOMPSON, Clyde L. (RFI) 4922 New Plymouth Rd. Pittsburgh 27, Pa. (Harbison-Walker Refractories Co.) THOMPSON, E. A. (E) Crane Steelware Ltd. Industrial Centre 5 Quebec. Que., Canada THOMPSON, Franklin S. (W) 25 Schenck Ave., Matawan, N, J. (Atlantic Tile Mfg. Co.) THOMPSON, Fred W. (R) 240:\ Thomas Dr.. Wilmington 6. Del. (E. 1. du Pont de Nemours & Co.) THOMPSOX. Frederick S. (RF) Corhart Refractories Co. 940 Commonwealth Bldg. Louisville 2, Ky. THOMPSON. G. L. Borax & Chemicals. Ltd. 35 Piccadilly. London. W. I. England THOMPSON, John D. (E) 2434 Everllreen Dr., Royal Oak, Mich. (Briggs Mfg. Co.) THOMPSON, Matthew S. (G) Puerto Rico Glass Corp., Box 4272 San Juan, Puerto Rico THOMPSON, Noel M. (R) 721 Shady Lane, Pittsburgh 34, Pa. (Lumnite Cement Div. Universal Atlas Cement Co.) THOMPSOl\, Thomas E. (E) Box 252, Williams Bay, Wise. (Thomas C. Thompson Co.) THO~lPSON, Lt. William M.. Jr. (BI) W ADC, Area B. Box 8308 WrightPatterson AFB, Dayton, Ohiu THOMSON. Homer G. (R) 12101 W. Howard St. Milwaukee 14, Wise. (Allen Bradley Co.) THOMSON, James K. (W) 2 McMaster Pl.. Bath, N. Y. (Westinghouse Electric Corp.) THOR, Murner E. (RI) 318 Parkhurst B1,d .. Buffalo 23, N. Y. (Norton Co,) THORl\E, James E. I \V J) Case Manufacturing Corp. Robinson, Ill. THORNGATE. Brtlce W. (W) IR41 Oakland Blvd. Fort \\'orth. Texas I R"y:d Tile ~If". (0.) THORNTON, George A. (M) Ottawa Silica Co., Box 437 Ottawa, Ill. THORXTO!". H. Richard (En Kational Bureau of Standards Washington 25, D. C. THORNTON, Paul E. (WI) 1708 La Taza Dr., La Canada, Calif. (Ferro Corp.) THRASHER, William R. (D) 270 Merriman Rd .. Akron 3, Ohio (Model Ceramics, Inc.) THROPP, HerreId D. (M) Shenandoah Silica Co., Inc. 190 W. State St., Trenton 8, N. J. THUENER, Everett E. (W) R. R. 5, Old State Rd. Schenectady 6, N. Y. (General Electric Co.) THUR:\'.o\UER. Hans (BF!) Minnesota Mining & Mfg. Co. Central Research. Ceramics Section Hudson Rd. & McKnight Ave. St. Paul 6, Minn. THUT, Walter W. lI.. G. Hunziker & Cie, Lagerstrasse Zurich. Switzerland THWIN. Maung 00 Box 216, Alfred. N. Y. TIBBALS, Harvey L. (MI) 542 Santa Barbara Rd. Berkeley 7. Calif. 1M inneapolis-Honeywell Regulator Co.) TICE. Henry B.. Jr. (W) 537 S. lI:inth Ave .. La Grange, 111. (Zenith Radio Corp.) TICKLE, William H. F. "Brown Stacks," Caldy Nr. West Kirby, Cheshire, England (Manchester College of Technology) TIDD, Elbert D. (W) Bell Telephone Labs, Inc., Rm. 3B-266 Whippany, N. J. TIEDE. Ralph L. (G) Owens-Corning Fiberglas Corp. Case Ave.. Newark: Ohio TIER)I;OK. Carlos H, (M) Deister Concentrator Co. 901-935 Glasgow Ave. Fort Wayne, Ind. TIFTICKJIAN, John D. (W) Winburn Tile Mfg. Co. 1709 E. Ninth St.. Little Rock, Ark TIGHE. Nancy J. IE) 1t>50 Harvard St.. N. W .. Apt. 116 \\'ashington 9, D. C. (Kational Bureau of Standards) TILLOTSON, Clifford (R) Tillotson Refractories Co. Box 398. Corona, Calif. TILLOTSON. E. Ward (GF) 505 S. Mttrtland Ave., Pittsburgh 8. Pa. (!\lellon Institute) TINKER. Dean (M) Granville. Ohio (Ohio Kilns, Inc.) RO!'TER 11~ i. ' I I' i I i :! i i ! I: I; I ; :j iI ;PACGH, J. R. (RI) e UniversitY of New York ~ge of Ceramics at Alfred Univ. 'ed, 1'\. Y. .UM AL,l.OY MFG. DIV. TIONAL LEAD CO. . J. Baldwin) Box C, Bridge Station _ *S,N.y. (E) p hemical Co. '3 Highland Ave. .cinnati 12, Ohio .-, Henry M. (S) w Chemical Co., Midland, Mich. cR. Edwin (MJ\ ,0 Xoble Rd.. Apt. 12 \'eland 21, Ohio eneral Electric Co. I . Henry (W) eLane, Queenston. Ont., Canada anadian Ohio Brass Co.) ""ER, George (W) .nadian Potteries Ltd. o Blvd. Seminaire Johns, Que., Canada R. Herbert R. (E) R. 2, Box 544, West Chicago, Ill. ndiana Steel Prod. Co.) .IVER. Bilh' R. .27 Virginia'. Illini-Village rbana, 1lI. ' S. Donald B. (E) 22 Hudson Ln., Fern Creek, Ky. General Electric Co.) . Elgin M. (G) 208 Marlaine Dr" Toledo 6, Ohio Kimble Glass Co.) ASEK, A. J. (R) ,Valsb Refractories Corp. 01 Ferry St., St. Louis 7, Mo. KINS, David E. (M) =<. R. 5, Easthrook Rd., New Castle, Pa (Shenango China, Inc.) L, Arthur Q. (GF) 7325 Carroll Ave. park 12, Md. : 1 Bureau of Standards) ) . v. (GF) 611 , Oregon, Urbana, Ill. (University of Illinois) 'PING. John (R) United States Steel Corp. 525 William Penn PI. Pittsburllh 30. Pa. 'PING, Stanlev M. 444 Cleveland ':he., Hornell, ~. Y. {GAL, K. G. "Happy Home," ~[annarpuram Tiruchirapalli, S. India' (Jamal Mohamed College) ~NO, Ralph F. (E) 4\0 Front St., Berea, Ohio (McGean Chemical Co.) ROK, Julius J. (G) 3344 Gallatin Rd., Toledo 6, Ohio . (Owens-Illinois) RRANCE. Fred E.. Jr. (B) Pomona Tile Mfg. Co. Box 633. Arkansas City, Kans.. 'RREYSO:\. William F .. Jr. (R) Aluminum Co. of America 1800 Hhode:;-Haverty Bldg. Atlanta 3. Ga. ISTEVIX, Edgar R.. Jr. I\\'J) 62 E. ~[arket St.. B,thlehem, Pa. (\\'estern Electric Co.) ll'LOCSE. Julian H. IGFIl Owens- Illi'nois Box 1035. Toledo 1. Ohio )WXSE"D, Franklin ~!. (RJ) Aluminum Co. of America Box 497. East St. Louis, III. ) . 'EXD. William O. \el) Nottingham Rd. bus 21, Ohio attelle Memorial Institute) RABERT, Loren .\. (WI) General Electric Co. 1811 Le~[oyne ..\Ye., Syracuse, ~. Y. OL. :Hi, ~ o. lO (I fl,);) TREDE:\:\ICr;:. William T. I RI) Refractory Specialties Co. 2200 "'ashington :\Ye. Philadelphia 46, Pa. TREFF~E~, Walter S. <R) 440 \\". Maple Rd. Linthicum Heights, Md. (General Re{ractories Co.) TREJ~CHEL, C. C. 1~1F1) R. T. Vanderbilt Co .. 230 Park Ave. :\ew York 17, X. Y. TREITLER, Theodore L. (G) Corning Glass Works, Corning, N. Y . TRENTON POTTERIES CO. Plants 1 & 2, 309 N. Clinton Ave. Box 141, Trenton, N. J. TREPTOW, Arnold W. (E) Bell Telephone Labs. Murray Hill, N. J. TREVOR, John F. Moira Rd., Woodville 1'\r. Burton-on-Trent, England (John Knowles & Co., Ltd:) TRIBE, Harold G. Electricity Meter & Allied Ind., Ltd. Box 4, Waterloo, Sydney, Australia TRIEBER. r. ~[arshall (RI 11124 Ly:nda Ln., Ar1il1~ton. Texas \Temco Aircraft, Inc.) TRINIDAD CLAY PRODUCTS. LTD. (Harold A. Eckel) 44. South Quay Port of Spain. Trini.lad. B. W. I. TRINITY CERAMIC SUPPLY, INC. t E. O. Davidson) 100 Howell St .. Dallas, Texas TRIXr;:LEI~. Robert 1. (W\ ~oo College. Cle\eland. Miss. nlisceramic Tile Co.) TRIPP, HaTian P. (EO 3605 Winchester Rd., Louisville 7, Ky. (General Electric Co.) TRO~IPETER, Bernard J. (M) Champion Spark Plug Co. 8525 Butler Ave., Detroit 11, Mich. TROST, Frank W, (R) Cbas. Taylor Sons Co. 5 Haddon Ave., Haddonfield, N. J. TROSTEL, L. J. (RFO General Refractories Co., Box 1673 Baltimore 3, Md. TROSTEL, Louis J., Jr. (RI) Norton Co.. 1 New Bonrl St. Worcester 6, Mass. TROY, H. Neal (RI) Owens-Illinois Technical Center 1700 N. Westwood Ave., Toledo 7, Ohio TROY, Walter J. (E) 888 Chili Ave., Rochester, N. Y. (Pfaudler Co.) TRt!ESDALE, Richard S. (l) Box 275, Alfred. N. Y. TRt!~IBl.'L1. James 1. liOIi W. 83rd, Seattle 7. Wash. TRt!~IPLER. Alfred 1. i\Y) Harper Electric Furnace Corp. 39 River St.. Buffalo 2, N. Y, TSE. Shou-cheng (W1) Box 208. Franklinville. ". Y. (Hi-Q Di\,., Aero\'ox Corp.) TSl'r;:.-\DA. Kenichi IiQ Shiro!l'ane Sarumachi. Shiha ~Iinato-Ku, Tokyo, Japan Tl'CKER. Donald]. (MIl 2114 Winthrop Rd. Huntingdon Valley. Pa. Tl'CKER, Edwarrl F. (R) Stebbins Engineering & ~[fJ<. \0 36., Eastern Blvd.. \Vatertown, ~. Y. TUCKER, Harvey C. (WI) Ferro Corp., 4150 E. 56th St. Cleveland 5, Ohio TeCKER, Roland E. (WI) Trenton Potteries Co. 309 N. Clinton Ave., Trenton, 1\. ]. n ..':\G. Chi Fang (E) 1958 Nokomis Ave., 51. Paul 6. ~Iinn. (~I;nnes"ta Mining & Mig. Co.) TeRRETT. Paul E. (M1) R. R. 1. Dresden Hwy., Paris, Tenn. I H. C. Spinks Clay Co., Inc.) TL'\{CK, \{aynwnd L. \.\11 165 Hampden Park. Tittin. Ohio I Sterling Grinding \"heel Co. I Tl'RCOTTE. Richard F. \ R \ .-\. ~l. Lockett & Co. Ltd . 1~Ol' C & I Life Bldg. H(lU .. t,ll1 2. Texas Tl'R1SSI:\1. Rohert IGI Corning Glass "'orks, Fallbrook Plant Corning. N. Y. TL'\{K, Harold 1. Box 574 ..\!fred. :\. Y. Tl'RK, Richard H. (EFII Pemco Corp., 5601 Eastern AYe. Baltimore 24, Md. lTR1.E\'. Charles 1. I B) B. F. Drakenfeld & Co., Inc. Box 519, \Vashington, Pa. lTRXB.-\L'GH. Jerry E. 5310 33rt] :he. S.. Seattle S, \\',,,h TlR:\BL'LL. E.kanl D. 1\\') Ellston Lead Co. .:'00 Pt"I111 .\Ye.. Scranton ,'. Pa. Tl'R:\BCLL. John C. (G) Radio Corp. of America RC .... -Victor Di\., Lancaster, Pa. TCR"ER. A A. (R) 153 Lake .\\C.. ~letuchen, ~. J . (Carborundum Co.) TlR"ER. Donald Lodll~ Plugs Lhl.. St. Peter's R,1. Rughy. \Van\ ick. EnglatHI TL'R:\ER. John H. 73 E. 15th AYe., Columbus 1. Ohio TCRXER, Mort D. (B) Calle 12 de Octubre 414 Hato Re\', Puerto Rico (Puert<>' Rico ~[inerology & Geology Section) TUR~ER. P. P., Jr (RT) 46 Imbler Dr., Cincinn~ti 18. Ohio (General Electric Co.l TCR:\ER. Re!/:inald E. (WI ~[onarch Tile ~[anufacturing, Inc. 602 S. Oakes St.. San Angelo, Texas TURNER, W. E. S. (Honorary) 30 Whitworth Rd., Ranmoor Sheffield 10, England Tl'TTLE. George X. (EF) Benjamin Electric Mfg. Co. Seegers Rd. & N. \Y. Highwa~' Des Plaines. III. TCTTLE, ~Ii1ton ,,1\. (R) Box 981, Alfred, N. Y. (State t Tniversitv of ~ew York, College of Ceral~ics) TWELLS, Robert (WFIl Electric Auto-Lite Co., Spark Plug Di\,., Box 231 Fostoria, Ohio T\\'ELLS, Robert G. (GI) 2824 Edgecliff Rd. :\ew Kensington. Pa. I Pittsburgh Plate Glas" Co.) TWYFORDS, LTD, Cliffe Vale Potteries Stoke-on- Trent, England TYGART VALLEY GLASS CO. (E. A. Hinkins) Box 503 \Vashington, Pa. TYLER, W. S.. CO, (e E. Jenks) 3615 Superior AYe., N. E. Cleveland 14. Ohio TYRRELL, Miles E. (R) Box 412. Norris. Tenn. (C. S. Bureau of Mines) T\'~I:\(;ER. Ted \Y. (50) B"" 265, I'leasal1t Garden, :\. C I Bor~n Clay Productsl u L'ELTZ, H. F, G. IB) .\80 \\'a1nut St., Shrewsbury, ~I"", I:\orton Co.) l'HR:\lAX:\, Carl J. (GF) Overlook Ct., Bellaire, Ohio (Arthur W. Schmid Co., Inc.) Ii ;LEMAN, Turrell (G) 109 Virginia Ave., Aspinwall, Pa. (Pittsburgh Plate Glass Co.) 'LRICH, Robert J. (E) American Radiator & Standard Sanitary Corp. 1 S. Seventh St., Louisville 8, Ky. J FRANCAISE DES DUITS REFRACTAIRES uise Halm) IS, Rue de Milan, Paris ge, France JNITED CLAY MINES CORP. (K. E. Ward) 101 Oakland St. Trenton 6, N. J. JNITED STATES BORAX & CHEMICAL CORP. (~L H. Pickard) Pacific Coast Borax Co. Div. 50 Rockefeller PI., New York 20, N. Y. JNITED STATES GYPSUM CO. I Robert Hamilton) 300 W. Adams St. Chicago 6, IiI. JNITED STATES STEEL CORP. (W. S. Debenham) 525 William Penn PI. Pittsburgh 30, Pa. JNIVERSAL CLAY PRODUCTS CO. (e. L. Evans) 1528 E. First St., Sandusky, Ohio JNIVERSAL DENTAL CO. (Joseph Kohn) 48th & Brown Sts. Philadelphia 39, Pa. JNIVERSAL POTTERIES, INC. (Harry E. Davis) Cambridge, Ohio UNIVERSAL-RUNDLE CORP. (A. L. Johnson) W. Keith McAfee Lab. Box 1268, Mahoningtown, P..lJNIVERSAL-RUNDLE CORP. (H. P. Wangelin) 3305 W. Forest Home Ave. Milwa.ukee IS, Wise. lJNUM, Robert F. (WI) 811 Wilmington Ave., New Castle, Pa. (Universal-Rundle Corp.) UPTON, Lee O. (G) Cerican Optical Co. echanic St., Southbridge, Mass. o , Stephen F. (B) 8 Hartford Ave., Kenmore 23, N. Y. (Titanium Alloy Div., National Lead Co.) URNES, Sigmund (B) Pennsylvania State University Dept. of Ceramic Technology University Park, Pa. URODE, Raymond J. Box 826, Alfred, N. Y. UTAH FIRE CLAY CO. (C. H. Myers) Box 127, Salt Lake City 10, Utah V VAIL, Milford R. (Rn 4014 Spruce St., Philadelphia 4, Pa. (Naval Boiler & Turbine Lab.) VALENCIA, Camilo (W) Plaza Rio de Janeiro No. 52-5 Col. Roma, Mexico, D. F. (Ferro Enamel de Mexico, S. A.) VALENTINE FIRE BRICK CO. DIV. A. P. GREEN FIRE BRICK CO. (W. H. Peterson, Jr.) Woodbridge, N. J. VALENTINE, Peter Cooney (M) Del Monte Properties Co. 620 Market St., San Francisco 4, Calif. VALYI. Ilsabe E. (R) 20 S. Broadway, Yonkers I, N. Y. (A. R. D. Corp.) VAN AKEN, Robert C. (W) Sperry Gyroscope Co. Di,'. Sperry-Rand Corp., IP39 Great Neck, N. Y. LSTEN, Roy L. (RI) 8 Sarasota, Detroit 39, Mich. ord Motor Co.) VANCE. Clarence E. 1218 Superior Ave., Sheboygan, Wise. V AN CLEAVE, A. A. (R) 8100 McGroarty St., Sunland, Calif. VOL. ;~li, ~O. 10 (lfl;')/) VAN COTT, Harrison C, (B) R.R. I, Horseheads, N. Y. (Corning Glass Works) VAJIf. DER BECK, Roland (BI) Stupakoff Div., Carborundum Co. Latrobe, Pa. VANDERBILT. R. T., ~O. (Ira E. Sproat) 230 Park Ave. New York 17, N. Y. VANDERMADE, Richard J. (R) 489 Willow Dr., Pittsburgh 16, Pa. (Carborundum Co.) \'A:\ DRESER, Merton L. (R) Kaiser Aluminum & Chemical Corp. Refractories Research Dept. 1600 S. Main St.. Milpitas, Calif. \'A:\ GELDEREl'\, L. P. K. V. Ramie Union Box 51, Enschede, Holland VA:\ GORDON, Donald V. (M) Metal & Thermit Co.rp., Rahway, :\. J. \'A:\ HOR:>:, Harry T. (M) 741 Floral Park Rd. Franklin Square, N. Y. (Socony Mobil Oil Co., Inc.) VAN HOL:TEN, Louis A. Fabricacion de Abrasivos S. A. Casilia de Correo 24 Campana, Argentina VANICK, James S. (M) International Nickel Co., Inc. 67 Wall St., New York 5, N. Y. VAN NIEUWENBURG, C. J. Laboratorium voor Analytische Scheikunde (Microanalyse) de Vries van Heystplein 2 Delft, Netherlands VAN SCHOICK, Emily e. (XF) State University of New York College of Ceramics, at Alfred Univ. Alfred, N. Y. VAN SCHalK, Dickson M. (RI) 5950 S. Lake Shore Dr., R. R. 2 Box 109, Whitehall, Mich. (Misco Precision Casting Co.) VAN TASSEL, R. H. (E) 527 Green Tree Rd., Kohler, Wise. (Kohler Co.) VAN VLACK, Lawrence H. (BI) Dept. of Chern. & Metal. Engineering University of Michigan Ann Arbor, Mich. VAN W ASSENHOVE, Pierre N. V. "De Sphinx" Maastricht, Holland VAN WIGGEREN, Charles G. (WI) Simonds Abrasive Co. Tacony & Fraley Sts. Philadelphia 37, Pa. VAN ZEE, Arthur F. (B) 3430 Inverness Ave., Toledo 7, Ohio (Owens-Illinois) V ARSHNEI, Purshottam D. (]) U. P. Glass Works Ltd. Bahjoi, Dt. Moradabad, U. P. India VASILOS, Thomas (B) 74 Cottage Park Rd., Winthrop, Mass. (AVCO Research & Advanced Devel. Div.) VAUGHAN, W. Harry (XFI) Cherokee Brick & Tile Co., Box 58 Waterville Rd., Macon, Ga. VEALE. Jack H. (R) 406 Reedwood Dr., Joliet, Ill. (Illinois Clay Products Co.) VEIGA, Roberto A. Ceramica Santa Helena Ltda. Rua 15 De Novembro 38 Paranagua. Parana, Brazil VENABLE, Char1e~ R., Jr. (Rn 11>1>0 S. Oak. Bartlesville, Okla. (Phillips Petrnle'lm Co.) VENABLE, Joe G. (G) Chattanoolra Glass Co. Chattanoolra 10. Tenn. \'E:\ABLE. Ray H. 742 Berclair Rd., Memphis, Tenn. VERBA, Richard J. (M) Schweitzer Equipment Co. 3764 Ridge Rd., Cleveland 9, Ohio VERDUCH, Antonio G. (B) State University of New York College of Ceramics, Alfred, N. Y. VERZOCCHI, Enrico Via P. Cossa I, Milano, Italy (Refrattari Verzocchi) VESUVIUS CRUCIBLE CO. (A. J. Jackman) Box 8275 Swissvale, Pittsburgh 18, Pa. \'lCARY, J. W. (E) Ervite Corp., Box 1927 Presque Isle Sta., Erie, Pa. VICTOR INSULATORS DIV. I-T-E CIRCUIT BREAKER CO. (H. Failmezger) Maple Ave. Victor, N. Y. VID:\:\OFF, Richard B. (GJ) General Electric Co., Quartz Plant Willoughby, Ohio VIDPLAN S. A. (Daniel Ferres) Real 1\0. 4415, Montevideo, t'ruguay VIDRIERA MONTERREY, S. A. (Alfonso F. Rodriguez) Apartado 162, Monterrey N. L., Mexico VIGER, Burnett e. (G) 130 E. Third St., Corning, N. Y. (Coming Glass Works) VILENSKY, Michel B. (R) 1515 27th Ave., San Francisco 22, Calif. (Ampex Corp.) VINAL, Francis E. (B) Radio Corp. of America 64 "AU St., Needham Heights 94, Mass. VINCENT CLAY PRODUCTS CO. (0. J. Whittemore) 615-19 State Bank Bldg. Fort Dodge, Iowa VINCENT, Edward P. (R) Kaiser Aluminum & Chemical Sales, Inc. 3 Gateway Center, Pittsburgh 22, Pa. VINCENT, George L. (WI) 22026 S. Millard Ave. Richton Park, Ill. (Cerolllic I IIdustry) VIl':ES, Raymond F. (B) Dentists' Supply Co. of New York 500 W. College Ave., York, Pa. VINTHER, E. Heikel Porce1ainfabriken Norden Valby Langgade 95 Copenhagen, Denmark VIOLA. Nazzareno, Jr. University Club, State College, Pa. VISCONTI di MODRONE, Raimondo Soc. Ceramica Richard Ginori 1 via Bigli. Milan. Italy VITACHROME, INC, (R. Pottinger) 421 E. Sixth St. Los Angeles 14, Calif. VITOLO, Sylvester A. (RI) Gen. Del., Long Valley, N. J. (Austenal, Inc.) VITREOUS STEEL PRODUCTS CO. I Edgar H. Weil) 2727 Wood hill Rd., Cleveland 4, Ohio VITRO MANUFACTURING CO. (Joseph Boyce) 60 Greenway Dr. Pittsburgh 4, Pa. VODICKA, Alhert L. (E) Aetna Porcelain Enameling Co. 4701 Augusta Blvd., Chicago 51, Ill. VOGEL, Ralph B. (M) National Lime & Stone Co., Carey, Ohio VO~ TURY, Francis J. (DF) Lehigh Ave.. Perth Amboy, N. J. (Vonll1ry, Inc.) VOORHIES, John H. (W) 243 Arrow Hwy., Claremont, Calif. (Pacific Tile & Porcelain Co.) VOSE, Wilfred Winstones' Roofing Tile Works Ltd. Box 2, Plimmerton, New Zealand VOSS, Raymond O. (G) 26 Pershing St., Coming, N. Y. (Coming Glass Works) VOSS, Wendell G. (E) 27814 Rexford Rd., Bay Vil1age, Ohio ( Ferro Corp.) RO~TER 11; I" I I I i L KOVICH. Milan, Jr. (MI) 1'63 Elizabeth Ave. Colnmhus 13. Ohio I Cudfrey L. Cahot. Inc.) 'a' w 8F. rAedlfred. ~. Y. \ AN, John B., Jr. (B) l\ational Bureau of Standards, Div. 9.1 Conn. Ave. & Van I\ess St., N. W. Washington 25, D. C. \ DE ..".rthur "Hilltop", Parkside .'\H. Cockermouth, Cumherland. England (Dorman. Smith PIng; LtJ.) 'IDE. Don E. (W) ~I isceramic Tile Box 1070, Cle\eland. ~I iss. \GG01'o:ER, Jack H. (GF) 240 Quentin Rd . N., Newark, Ohio I Fiher Glass Di,. Pittsburgh Plate Glass Co.) AGNER, Bruce F. (W) 186 N. Vernon Ave., Pasadena 3, Calif. (B. F. Wagner & Co.) .\G:'\ER. Charles D. (W) B. F. Wagner & Co. 186 N. Vernon Av., Pasadena 3, Calif. AGNER. Harold C. (R) Shoreham Drive, Box 76G, R. R. 1 St. Joseph, Mich. (Zirconium Corp. of America) AGNER, Rio B. (M) 1398 Brice Rd., Reynofdsburg, Ohio (Perma Flex Mold Co.) . AGSTAFF, Frank E. 5021 17th N. E., Seattle 5, Wash. AHL, Albert J. (M) A. J. Wahl, Inc., 8 Central Ave. Brocton, N. Y. AHLGREN, Wald A. B. Gustavsbergs Fabriker Gustavsberg, Sweden A . , Eugene (W) ons, Inc. 2905 E. 79th St. and 4, Ohio AI ,Virgil H. (E) 433 Beech St., Berea, Ohio tMcGean Chemical Co.) AIVER, Gedert J. (W) 909 87th St., North Bergen, 1'0:. J. (B. G. Corp.) AK~FIELD, Richard E. B. (D) Hetherington, Inc., 1200 Elmwood AH. Sharon Hill, Pa. AKELY, Wilbur T. (GJ) Sylvania Electric Products. Inc. 825 Lexington. Warren, Pa. 'ALDAL, James C. 2425 Second Ave. W. Seattle 99. Wash. 'ALDEN, Albert S. (R) National Carbon Co. Cleveland. Ohio .' ALKER, Eugene E. (W) 220 W. Sheridan Ave. New Castle, Pa. (Universal-Rundle Corp.) ALKER. Henry E. (G) Harding Glass Co., Sta. B, Box 38 Fort Smith, Ark. .' ALKER. Herbert M. (W) Walker China Co., Solon Rd. Bedford, Ohio .' ALKER, John Morgan Crucible Co., Ltd. Battersea Church Rd. London, S. W. II, Ent:land :ALKER, Stuart D. fl.) 112 E. Lake St.. Skaneateles, ~. Y. (Hed-Duty Electric Co.) "ALKER. Warren W. (B) 29 Laurel PI., Upper Montclair, N. J. ClaPhite Metallizing Corp.) " P, D. H. (W) re Ceramics Corp., Box 1619 gore. Texas .,rALLA, Max R. (W) Box 1369, Little Rock, Ark. (\Vinburn Tile Mfg. Co.) OL. :~(i, 1\'0. 10 (!(l.-)') \.....\LLACE. Arthur B. (\\') 135 ~. 19th St., Olean, !\. Y. I Hi-Q Diy., Aerovox Corp.) \\.'\LLACE, Paul F. (B) Aluminum Co. of America Alcoa Research Labs., Box 7i2 l'\ew Kensington, Pa. 'IV ALSH, Donald E. (G) Consolidated Feldspar Dept., International Minerals & Chemical Corp. East Liverpool, Ohio WALSH REFRACTORIES CORP. (A. J. Tomasek) 101 Ferry St. St. Louis 7, Mo. "'ALTER, Jake J. 131 Stanton Ave., Ames. lo\\a \\'ALTERS, Emmett L. (G) Libbey-Owens-Ford Glass Co. li01 E. Broadway, Toledo S, Ohio WALTON, Jesse D., Jr. (E) 3304 Fairway Rd., N. E. Atlanta 19, Ga. (Engineering Experiment Station Georgia Institute of Technology) WALWORTH, Chester A. (G) Libbey-Owens-Ford Glass Co. Box 4278. Charleston 4, W. Va. WAMBOLD, Jack (B) Kennametal. Inc. Lloyd Ave., Latrobe, Pa. WAMPLER, Roy W. (G) Libbey-Owens-Ford Glass Co. Technical Bldg., 1701 E. Broadway Toledo 5. Obio \\'Al'G, Chan-huan (W) 2509 ~. W. Lovejoy St. Portland 10, Ore. <Tektronix, Inc.) WAXG, Franklin F. Y. (E) Glascote Products, Inc. 20900 St. Clair, Cleveland 17, Ohio WAl\GELlN, H. P. (E) Universal-Rundle Corp. 3305 W. Forest Home Ave. Milwaukee IS, Wise. WARD, George V. (R) McLain Works, Refractories Di\'. H. K. Porter Co., Inc. \\'ellsville, Ohio ".\RD, George W. (G) 1049 W. 32nd A,'e. Vancouver 9, B. c., Canada (Consultant) WARD, John F. (R) 551 Chester PI., University Heights New Brunswick, N. J. (Rutgers, The State Unh'ersity School of Ceramics) WARD, K. E. (M) United Clay Mines Corp. 101 Oakland St. Trenton 6, N. J. WARD, Mrs. S. Paul (M) 601 Mission St., Box 345 South Pasadena, Calif. (5. Paul Ward, Inc.) WARD, Thomas J. Box 3, Ogdensburg, N. Y. WARDE, John M. (RF) Union Carbide Ore Co. Carbide & Carbon Bldg. 30 E. 42nd St., New York 17, N. Y . W ARE. Robert K. 1407-B Brackenridge Apt. Lake Austin Blvd., Austin 3, Texas WARFIELD. Robert A. (G) 2460 E. Livingston Ave. Columbus 9, Ohio (Federal Glass Co.) WARNER, Maurice F. (8) 1130 Green Bay Rd . Lake Bluff, Ill. (Sierra Talc & Clay Co.) WARRELL, Lincoln A. (R) Aluminum Co. of America 744 Broad St., Kewark 2, ~. J. \\'ARRE!\, George (GI) Pfaudler Co. 1000 West Ave., Rochester 3, N. Y. WARREN, William R. 153 Hillside, Clemson, S. C. \\'.-\RSH.\ \\'. Israel (B) Penns\'hania State tJni"ersity Colleg'e of Mineral Industries Cniversit\' Park, Pa. W.\RSHA\\.,' Stanley 1. 228 Foster St.. Brighton, ~lass. WARYGA, Casimer F. (R) 863 Colwyn Rd., Jenkintown, Pa. (Frank Samuel & Co., Inc.) WASHABAUGH, Grover C., Jr. (M) ~ew Castle Refractories Co. !\ew Castle, Pa. WASHINGTON BRICK & LIME CO. (Walter Senters) Box 2198 Spokane, Wash. WASHINGTON PORCELAIN CO. IE. R. Miller) \\'illow SI. \\'ashington, K. J. "'ATERS, Martin R. (WI) 22 Red Rose Way, Levittown, r;: I\\'enczel Tile Co.) \\ATKIN. Robert W. (W) I~. R. I, Box Ii 3. Odessa, Fla. (Edwin M. Knowles China Co.) \\'.\TKI~S. E. Charles (\VJI) Chapel Rd., RR. 3, Zanesville. OhlQ Dlosaic Tile Co.) \\' ATKIl\'S, George B. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio WATKINS, Ray T. (S) V. S. Tariff Commission, Ceramic Oi,. Eighth & E Sts., N. W. Washington 25, D. C. WATKINS, Ens. Robert V. (GJll BOQ-NAS, Hutchinson, Kans. WATKI~S, William E. (51) 13112 E. Seventh Ave. Spokane 66, Wash. (Gladding, McBean & Co.) WATKINS. W. J. (M) Kentucky Clay Mininr Co. Mayfield, Ky. WATSON, George F. (R) American Brake Sboe Co. Metallurgical Lab., Mahwah, N. J. WATSO~, James F. 4663 Merle Hay Rd. Des Moines, Iowa WATT, Loren (W) Watt Pottery Co. Crooksville, Ohio WATT POTTERY CO. (Loren Watt) Crooksville, Ohio WATTS, Arthur S. (Honorary, WFI) Lord Hall, Obio State University Columbus 10. Ohio WATTS. Richard L. 1i2 16th Ave., Columbus, Ohio WAUFLE, Harold E. 16Yz Greenwood St., Canisteo. X. Y. WAUGH, ]. Stanley Mass. Inst. of Tech., Bldg. 20 Rm. 20-C-001, Cambridge 39, Mass. WAXLER, Roy M. (G) National Bureau of Standards Conn. Ave. & Van Ness St . N. W. Washington 25, D. C. WEATON, Ral"h L. (G) St. Joseph Lead Co. Zinc Smelting Div., Monaca. Pa. WEAVER, Don S. (Rn WeaHr Materiel Seryice Gokey Bldg., Jamestown, X. Y. WEAVER. Harold L. (G) 303 Chestnut St., Port Allegany, Pa. (Pittsburgh Corning Corp.) WEAVER, Leonard \Y. (E) Bird & Son, Inc. East Walpole, Mass. WEA VER, R. A. (EF) Ferro Corp., 4150 E. 56th St. Cleveland 5, Ohio WEBBER, John J. (R) 1210 Elco Dr., Maumee, Ohio (Harbison-Walker Refractories Co.) WEBER. Arthur W. (G) Corning Glass Works Corning, N. Y. ,I .~ i ~: I :i _ - - - - - - - - - - _....-.--~---_ ... ROSTER 119 EBER, Berthold C. (B) 3833 Saranac Dr., Dayton 9, Ohio (Wright Air Development Center) EBER, Charles H. (5) Port Costa Brick Works 401 Berry St., San Francisco, Calif. EBER, Don A. (5) 4Iister Concentrator Co. lasgow Ave., Fort Wayne, Ind. Neill (G) on Institute HOO Filth Ave., Pittsburgh 13, Pa. EBSTER, Charles E. (RI) 311 E. Beaver St., Zelienople, Pa. (Lava-Crucible-Refractories Co.) EBSTER, David (5) Polycbemicals Div. West Virginia Pulp & Paper Co. Box 832. Charleston, S. C. EEDY, Robert C. (R) Harbison-Walker Refractories Co. Box 957. Windham, Ohio EHTJE, Ernst ,T. 2. Hans Michelsensgatan ~lalmo I, Sweden (Skanska Cementaktiebolaget) EHTJE, Karl Fredrik AlB Rorstrands Porslinsfabriker Lidkoping, Sweden EJDEL, Robert A. (G) 497 Apple Orchard Lane Webster, N. Y. (Bausch & Lomb Optical Co.) EJDENBAUM, Saerman S. (G) 59 W. Second St., Corning, N. Y. (Corning Glass Works) EIDLICH, Gilbert (M) 640 E. Jefferson, Kirkwood, Mo. (Western Machinery &: Engine Co.) EIDMAN, V. Wesley (R) 201 Duncan Ave., Wilmington 3, Del. (E. I. du Pont de Nemours &: Co., Inc.) EIGEL, Robert C. (R) 820 Woodlawn, Mexico, Mo. (Mexico Refractories Co.) ~ElL EdugsarSHte.el (E) Products Co. oodhill Rd., Cleveland 4, Ohio E urt E. Rua Batatais 472, Sao Paulo, Brazil (Quimica Industrial Barra do Pirai SI A) EINSTEIN, Alex (G) Ednalite Optical Co., Inc. 200 N. Water St., Peekskill, N. Y. EINTRITT, Donald J. (M) Baroid Div., National Lead Co. Box 1675, Houston I, Texas EIS, Joseph H. (WI) . 608 Demong Dr., Syracuse 3, N. Y. (General Electric Co.) EIS, Robert J. (W) 3902 Brownsville Rd. Pittsburgh 27, Pa. (Vitro Manufacturing Co.), EIS, Valentine E. (B) Stetson China Co., Lincoln, Ill. ElSE, Robert L. (G) 307 Ohio St., Somerset, Ky. (General Electric Co.) EISENSEEL, Charles W. (Wn Jackson Tile Mfg. Co. Box 2006, Jackson, Miss. EISS, David University of California Dept. of Engineering, Engr. 3011 Los Angeles 24, Calif. EISS, E. Joseph (BI) Dept. of Ceramic Engineering University of Texas, Austin, Texas EISS, W. Russell (R) Wellsville, Mo. (Wellsville Fire Brick Co.) EISZ, Robert S. (B) national Telemeter Corp. Pontius Ave. Angeles 64, Calif. ELCH,A. Philip (BI) 1018 Glade Ave., Canoga Park, Calif. (Atomics International) ')L. 36, No. 10 (HI,,)7) WELCH, Archibald (S) Cooksville Co., Ltd. 1055 Yonge St., Toronto, Ont., Canada WELCH, James S. American Ceramic Society 4055 N. High St., Columbus 14, Obio WELCH, John c., Jr. (B) 110 Escalona Ct., Sanra Cruz, Calif. (A. P_ DeSanno & Son) WELCH, Richard L. (R) Dominion Firehrick & Clay Products (1954) Ltd. Claybank, Sask., Canada \YELLER, Barton L. (W) Vitramon, Inc. Box 544. Bridgeport 1. Conn. WELLER, HarTey C. (G) Surface Combustion Corp. 2375 Dorr St., Toledo 1, Ohio WELLING, Charles E. (R) Ford Motor Co., Scientific Lab. Engr. Staff. Box 2053 Dearborn, Mich. . WELLS, A. A. (WF) Homer Laughlin China Co. Newell, W. Va. WELLS, ]. M. (W) Homer Laughlin China Co. Newell, W. Va. WELLS, Ralph G. (B) University of ~1ichigan Engineering Research Institute E. Engineering Bldg., Rm. 4201 Ann Arbor, Mich. WELLS, Robert M. (W) Homer Laughlin China Co. Newell, W. Va. WELSH, John ]., Jr. (G) Mississippi Glass Co. 88 Angelica St.. St. Louis 7, Mo. WELSHANS, L. T. (R) Diamond Alkali Co., Cement-Coke Div. 300 Union Commerce Bldg. Cleveland 14, Ohio WELTE, Ralph ]. (S) Summit Pressed Brick & Tile Co. Box 533, Pueblo, Colo. WELTERLEN, James D. (W) 4630 Zane St., Los Angeles 32, Calif. (Gladding, McBean & Co.) WENCZEL, C. (W) Wenczel Tile Co., Box 908 Trenton, N. J. WENCZEL TILE CO. (c. Wenczel) Box 908, Trenton, N. J. WENDT, Nelson E. (W) American Potash & Chemical Corp. 595 Foch Blvd., Williston Park, N. Y. WENGER, James A. L. Messrs. Wengers Ltd., Etruria Stoke-on-Trent, Stafford, England WENNING, W. F. (E) Ceramic Color & Chemical Mfg. Co. Box 297, New Brighton, Pa. WENTZ, B. B. (S) Belden Brick Co. 700 W. Tuscarawas St., Canton I, Ohio WERKEMA, Thomas E. (S) Dow Chemical Co., Midland, Mich. WERNER, Alan J. (G) 159 Watauga Ave., Corning, N. Y. (Corning Glass Works) WEST, Frank Haslemere Greenlane Buxton, Derby, England (Derhyshire Silica Fire Brick Co.) WEST, Howard F. (R) Illinois Clay Products Co. 68 N. Cbicago St., Joliet, III. WEST, Richard R. (B) Box 493, Alfred, N. Y. (State University of New York, College of Ceramics) WESTBROOK, ]. H. (B) General Electric Co., Rm. 3C20 Research Laboratory, The Knolls Schenectady, N. Y. WESTERN BRICK CO. (I. R. Cline) Danville, III. WESTERN CLAY MFG. C. (A. C. Bray, ]r.) Box 176, Helena, Mont. WESTERN ELECTRIC CO., INC. U. W. Scott-7650) Hawthorne Sta., Chicago 23. III. WESTERN ELECTRIC CO., INC. (W. J. Scott) 2500 Broening Hwy. Baltimore 24, ~ld. WESTERN FELDSPAR MILLING CO. (V. E. Magnuson) Box 671 Salida, Colo. WESTINGHOUSE ELECTRIC CORP. (John D. Harnish, Jr.) Derry, Pa. WESTLAKE, C. Rogers (WI) 1961 Christmas Run Blvd. \\'ooster, Ohio (Diamonite Products ~lfg. Co.) \\'EST~IAN, A. E. R. (GF) Dept. of Chemistry Ontario Research Foundation 43 Queen's Park Crescent Toronto 5, Ont., Canada WESTMONT, O. B. (R) Johns-Manville Products Corp. Lompoc, Calif. WESTON, Ralph H. (51) Arketex Ceramic Corp., Brazil, Ind. WEST VIRGINIA BRICK CO. (Claude F. Wiseman) Box 1071 Charleston, W. Va. WEYL, Woldemar A. (GF) Div. of Mineral Technology Pennsylvania State University University Park. Pa. WHALEN, Thomas ]. 7678 Harding, Dearborn, Mich. WHALLOK, William P., Jr. (M) 3551 County Line Rd., Chalfont, Pa. (Globar Div., Carborundum Co.) WHEELER, D. D. (W) Titanium Alloy Mfg. Div. National Lead Co. 111 Broadway, New York 6, N. Y. WHEELER, Marvin Q. (G) Coca-Cola Co .. Engineering Dept. Drawer 1734. Atlanta 1, Ga. WHEELER, William H. (BI) 1721-A Aberdeen Rd. Baltimore 4, Md. (~lartin Co.) WHEELING STEEL CORP. (Ernest B. Snyder) Steubenville South Plant Steubenville, Ohio WHERRY, Allen P. (EI) 9652 Oakdale Rd., Parma 29, Ohio (Hunter-Thomas Assoc.) WHITACRE, D. D. (R) Whitacre-Greer Fireproofing Co. Waynesburg, Ohio WHITACRE-GREER FIREPROOFING CO. (D. D. Whitacre) Waynesburg, Ohio WHITACRE, Maxwell L. (M) Carborundum Co., Buffalo Ave. Niagara Falls, N. Y. \VHITAKER, Fred A. (WI) 451 Oak Ridge Rd., Clark, N. J. (General Ceramics Corp.) WHITAKER, H. Rustless Iron Co. Ltd., Lawkholme Ln. Keighley, Yorks, England WHITAKER, L. R. (SFI) Carolina Ceramics, Inc., R. R. 3 Columbia, S. C. WHITE, David E. 1009 \Y. California, Urbana, III. WHITE, Frank L. (G) 12147 Manor, Detroit 4, Mich. (Ford Motor Co.) WHITE, George D. (B) 225 E. Drive, Oak Ridge, Tenn. (Cnion Carbide Nuclear Co.) WHITE, Harold E. (RFI) R. R. 6, "Windy Knoll," Butler, Pa. (Lava Crucible-Refractories Co.) ROSTER 121 I I I I. .'I.! I I i i~ II ~T, J. F. (B) J16 Arrowood Dr. Cincinnati 31. Ohio ':;eneral Electric Co.) rEo John M. (G) perry Electronic Tube Di,. aines\ille. Fla. fE, Jonathan S. (W) ' inger PI. urg, Pittsburgh 21. Pa. off Div., Carborundum Co.) I IT. 'Mara (G) ,~2 Fairmont Ave., Westfield. N. J. Carborundum Co.) TEHEAD, Leland E. ;662 Simpson St., ;";orfolk 13. Va. TESELL, Lysle E. (R) Wells\il!e. Mo. rWells\'ille Fire Brick Co.) :TFIELD, Robert E. (R) Chas. Taylor Sons Co., Box 58 Annex Station, Cincinnati H, Ohio !TFORD, Robert F. (R) :\orth American Refra~tories Co. 1012 :\ational City E. Sixth Bldg. Cle"eland 14, Ohio ITFORD, William G. (OF) Box 38, Olympia Fields. Ill. (University of Chicago) ITI;";G, Harvey W. Box 202, Lacona, K. Y. ITLEY, Jack O. (W) 2491 Princeton Ave. San Angelo, Texas (Monarch Tile Mfg., Inc.) rIT~EY, Earl J. (GJ) 222 Walnut St., Corning, N. Y. (Corning Glass Works) -' IIT!'EY, Eugene H. (R) Gladding, McBean & Co., Mica, Wash. IITKEY, John B. (E) 317 N. Bonner Ave. St. Matthews, Ky. (General Electric Co.) IITSON, Ralph E. (W) Aluminum Co. of America Box 300, Bauxite, Ark. '.X, Richard E., Jr. (R) econd Ave., Farmville. Va. nhe Mining Corp.) HITT AKER, Clyde M. (W) Box 960, New Castle. Pa. (Universal-Rundle Corp.) HITTAKER, G. Ward (\V) Union Meeting Rd. Gen. Del. Bluebell, Montgomery County, Pa. (Universal-Rundle Corp.) HITTEMORE, J. W. (SF!) Virginia Polytechnic Institute Blacksburg, Virginia' HITTEMORE, O. }. (S) V incent Clay Products Co. 615-19 State Bank Bldg. Fort Dodge, Iowa 'HITTEMORE, O. J . Jr. (RI) Norton Co. Worcester 6, Mass. 'HITTEMORE, Russell G. (G) Pittsburgh Plate Glass Co. One Gateway Center. Pittsburgh 22, Pa. 'IBERG, Orian AB S\'enska Metallverken Vasteras, Sweden \ICKE, Warner C. (W) General Electric Co., One River Rd. Schenectady, N. Y. \ICKS. John Simison (E) Fairground Rd. R. R. 1 Fern Creek, Ky. (General Electric Co.) \'IDGER, G. Thomas (W) 3811 N. Walnut, Kansas City 16, ~[o. (Tierra Royal Potteries, Inc.) VIEG.-\:\D. Frank R (WJi 116-A Haddon Hills Apts. ddonfield, N.], , niversai-Rundle Corp.) \ _ 5, Bradley E. (G) Owens-Illinois liOO N. Westwood Ave. Toledo 7, Ohio VOL. :3Ii. ~ O. 10 (Hl.")l) WIKER, Richard M. (G) 206 Rand Ave., Painted Post. N. Y. (Corning Glass Works) \\'IL:\:\SKY, Harold (G) 69 ~eadO\\ Brook, Corning, :\. Y. (Corning Glass \\'orks) \\'ILCOX, David L. Box 82i, Alfred, :\. Y. WILCOX, Herman G. (R) 800 Ross Ave., Pittsburgh 21, Pa. (Harbison-Walker Refractories Co.) WILCOX. James W. (5) Alliance Clay Product Co. Alliance. Ohio WILCOX, Paul D. 59 S. Grant St., Mid\'ale, l'tah WILDER. David R 1212 S. Third St., Ames, Iowa WILKE, William P., III (M) Hammond Lead Products, Inc. 5231 Hohman Ave., Box 912 Hammond, Ind. \\'ILKERSO:\, Robert L. (\\') Crescent Concrete Products Corp. 2933 Dauphine St.. New Orleans, La. WILKES, Gordon B. (RF) Box 131, East Orleans, Mass. WILKINS. E. D. Kaiser Bauxite Co. Spm Tree, Jamaica, B. W. 1. WILKINS, Ian Hugh (W) 325 Old Quarry Rd. Kingston, Ont., Canada (Frontenac Floor & Wall Tile, Ltd.) WILKIXS, William W. (M) Ferro Corp., 5309 S. District Blvd. Los Angeles. Calif. WILLEMS, H. W. V. (G) 1513 Pacific Ave., Brackenridge, Pa. (Pittsburgh Plate Glass Co.) WILLENBROCK. Allen W. (W) Stangl Pottery Co. Box 2080, Trenton 7, N. J. WILLIAMS. Alan B. (Rl) 105 McCarthy Dr. Augusta, Ga. (Babcock & Wilcox Co.) WILLIAMS, Arthur E. (G) 1214 Eighth St., Moundsville, W. Va. (Fostoria Glass Co.) WILLIAMS, Charles N. 311 Fairlawn Dr., Urbana, Ill. WILLIAMS, Clyde (RF) Battelle Memorial Institute 505 King Ave., Columbus I, Ohio WILLIAMS, George F. (G) Owens-Illinois, Technical Center 1700 N. Westwood Ave., Toledo 1, Ohio WILLIAMS, Gordon R Fabrica N'acional de Porcelana S. A. Calle I-a Maracay, Edo-Aragua, Venezuela WILLIAMS, Harry M. (Wn Insulator Dept., General Electric Co. Box 57. Baltimore 3, Md. WILLIAMS, John A. (W) Box 250. Trenton 2, N. J. (Mitchell-Bissell Co.) WILLIAMS, John C. (W) Mt. Vernon Way, Whippany. N. J. (Bell Telephone Labs.) WILLIAMS, Josephine L. (B) 6014 Woodmont, Cincinnati, Ohio (Cincinnati Milling ~Iachine Co.) WILLI.-\~IS, Lawrence (G) Box 652. San Antonio 6, Texas (Artist in Glass) WILLIA~IS. Leroy L .. Jr. (El) 3006 Adams Ave., Evansville, Ind. (\Vhirlpool Corp.) WILLIAMS, Robert A . Jr. (W) American Encaustic Tiling Co., Inc. 1000 N. Cannon Ave., Lansdale, Pa. \\'ILLI.-\~IS. Robert B. (W) 1067 Dawn St. Signal Mountain, Tenn. (American Lava Corp.) WILLIAMS, Robert E. 1800 Crosby Rd., Carrollton, Texas WILLlA~IS, Robert M. (Rl) 5809 Royal Oak Ave., Baltimore, Md. (General Ref ractories Co.) WILLL-\~[S, \\'alter E. (WI) N'ew Castle Refractories Co. New Castle, Pa. \\'ILLL-\:-'IS, \\'illi5 \\'. (R) Aluminum Co. of .-\merica Box 300, Bauxite, Ark. \\lLLIS. James B. (E) 309 Timonium Rd., Timonium, ~Iu. (Pemco Corp.) WILLIS, James L. (R:I Kaiser Aluminum & Chemical Sales, Inc. 3 Gateway Center, Pittsburgh 22. Fa. WILLMORE, Tracy A. (R) 1118 W. Illinois St., Urbana, Ill. (University of Illinois) WILLS, Robert E. (R) Bolt 220, Coal City, Illinois (Illinois Clay Products) \YILSO:\, Bonum S.. Jr. 2914 :\iagara Aye. :\iagara Falls. :\. Y. WILSO"", Calvin S. (G) Libbey Glass Div., Owens-Illinios Ash St. & Wheeling RR Toledo I, Ohio WILSON, Charles L. (5) 217 N. Meridian St., Brazil, Ind. (American Vitrified Products Co.) WILSO~. Clifford F. (R) Kerr Manufacturing Co. 6081 12th St., Detroit. Mich. WILSON, George (R) 131 Edison Ave., New Castle, Pa. (New Castle Refractories Co.) WILSON, Glenn I. Box 519, Sapulpa, Okla. WILSO:\, Homer W. (S) Delaware Clay Co. Box 35.2, Delaware, Ohio WILSO~. Hugh H . Jr. (Bl) Clemson College, Olin Hall Clemson, S. C. WILSO:\, Maurice S. (R) 14 Reynolds Dr., Wallingford. Conn. (American Refractories & Crucible Corp.) WILSON, Robert Charles (WI) 7'11 Wedgewood Dr., Apt. J Columbus 4, Ohio (Ohio State University Engineering Experiment Station) WILSON, Robert F. (G) Durakool, Inc. 1010 N. Main St., Elkhart, Ind. WILSO:\, Roger E. (R) 101 Collinwood Blvd., Fremont, Ohio (Basic, Inc.) WINBURN, H. L. (S) Box 1369, Little Rock, Ark. (Winburn Tile Mil!. Co.) WI:\CHELL, Richard (R) 1314 Center St., Pittsburgh 21, Pa. (\Vestinghouse Electric Corp., Atomic Power Dept.) WINEMILLER, William F. (R) 11 Ardmore Road. Worcester 9, Mass, (Norton Co.) WINGERTER. Donald B. (R) 254 Oxford AYe., Fair Haven, N. J. (Johns-Manville Corp.) WINSHIP, Lee C. (G) Sylvania Electric Products, Inc. Emporium, Pa. WISTER, Aniuta . Institut d'optique Theoricjue et Appliquee, 3, BId Pasteur Paris (5 0 ) France WI:\TER. Gary E. 324 Forest Rd .. Davenport, Iowa WIRTH. Da"id G., Jr. 1108 Clara Ave., Joliet, 111. WISCONSIN PORCELAIN CO. (L. A. Stohl) 120 Lincoln St. Sun Prairie, Wisc. \VISE. Douglas Irving St., Alden, N. Y. ROSTER 123 , I I' I ,I ,,I I.:; SE; L. G. (B) E. 1. du Pont de Nemours & Co., Inc. Chemical Dept., Experimental Sta. Wilmington, Del. SEMAl', Claude F. (5) West Virginia Brick Co. Box 1071, Charleston, W. Va. KI, 1. Stanley (R) rial Heating Union Trust Bldg. Pittsburgh 19, Pa. [SS, J. E. (MFI) 1339 Lincoln Rd., Columbus 12, Ohio (Consultant) ITMER, Frank (G) 612 W. Main St., Woodville, Ohio (Ohio Lime Co.) ITSCHEY, Ray A. (R) A. P. Green Fire Brick Co. Mexico, Mo. ITTE, Kurt Tholauerstr. 30 :l-Iarktredwitz/Oberfranken, Germany I Kera-Sud Schwarzenbach) "ITTER, Raymond B. Edificio Galipan, A-5-C, Av. ~liranda EI Rosal, Caracas, Venezuela (Fabrica de Productos Ceramicos) 'ITUCKI, Robert M. (G) Aerophysics Development Corp. Box 689, Santa Barbara. Calif. :ITZEMANr-:, A. W. (W) Eljer Co. Di\'. Murray Corp. of America Ford City, Pa. ,rOHLFORT, Sam W. (G) Libbey-Owens-Ford Glass Co: 1701 E. Broadway Ave. Toledo 5, Ohio VOLD, T. (W) Smith & Stone, Ltd. Georgetown, Ont., Canada VOLFENSPERGER, R. E. (R) 231 Martin Ave., Pittsburgh 16, Pa. (Tom Brown Industrial Supply Co.) .\'ODOFF, Vladimir E. (B) borundum Co. earch & Development Div. iagara Falls, N. Y. NOMELDORPH, R. C. (G) 3 Abbott St., R. R., Mamille. R. 1. (Owens-Corning Fiberglas Corp.) WONG, Y. Y. (X) c/o Mrs. D. D. Yang 5741 S. Kenwood Ave., Chicago 37, Ill. WONGSOREDJO, Rasmadji Balai Penjelidikan Keramik (Ceramic Institute) Djl. Raya Timur 322 Bandung, Indonesia WOOD, Clifton E. (W) 512 E. Ellen, Fenton, Mich. (A C Spark Plug Div., General Motors Corp.) WOOD, Kenneth T. (R) 102 Grace Blvd., Painted Post, N. Y. (Corning Glass Works) WOOD, Llewellyn, Jr. (S) Carrington Woods, R. R. 4, Box 209 Milledgeville, Ga. (Oconee Clay Products Co.) WOOD, Russell K. (WI) 3900 E. California St. Pasadena 10, Calif. (Wallace China Co., Ltd.) " WOODBRIDGE, Thomas C. 38 Stirling Rd. Hayes, Middlesex. England (British Bath Co. Ltd.) WOODRUFF, Calvert M. (W) American Nepheline Ltd. l'ephton via Lakefield, Ont., Canada WOODRUFF, Ernest W. (R) efractory Products Co. 10 Custer Ave., Evanston, Ill. DS. C. J. (X) Philips Electronics. Inc. Instruments Div. 750 S. Fulton Ave. !l.lount Vernon, N. Y. VOL. :~n, ~o. 10 (1957) WOODS, Hubert (B) Portland Cement Assn. 33 W. Grand Ave., Chicago 10, IIi. WOODS, William J. (M) Pennsylvania Glass Sand Corp. Box 627, Lewistown, Pa. WOODS, William J., Jr. (!\1) Pennsylvania Pulverizillg Co . Two Gateway Center Pittsburgh 22, Pa. WOODVILLE LIME PRODUCTS CO. O. Robert Cowell, Jr.) 2140 Jefferson Ave., Toledo 2, Ohio WOODWARD, Roger (W) 200 Alaimo Dr., Rochester 10, :\. Y. (Victor Insulators Diy. I-T-E Circuit Breaker Co.) WOOLDRIDGE, Morris L. (R) Owens-Corning Fiberglas Corp. Research Center. !\ewark. Qhio WOOLEY, Seward E. (Rt) 18 E. Brown St., Somenille. :\. ,T. (Johns-Manville Research Center) WOOTEN, Richard M. (G) 3913 Whitland Ave., Nash, ilk. Tenn. (Ford Motor Co.) WORCESTER, R. L. (S) Purington Brick Co. Box 110, Galesburg, III. WORCESTER ROYAL PORCELAIN CO., LTD. (Joseph F. Gimson) Royal Porcelain Works Worcester, England WORCESTER, W. G. (XFl) 720 Sask. Crescent E. Saskatoon, Sask., Canada WORK, Lincoln T. (M) 15 N. Crescent, Maplewood, N. J. (Consultant) WRIGHT, E. P. (WI) Taylor, Smith & Taylor Co. Chester, W. Va. WRIGHT, J. E. Messrs. A. G. Hackney & Co., Ltd. Fairfield Pottery, Hanley Stoke-on-Trent, England WRIGHT, John C. 110 Laughlin A,e. Weiland, Ont., Canada WRIGHT, J. W. (Gn 2703 Densmore Dr., Toledo 6, Ohio (Owens-Illinois) WRIGHT, Louis H. Box 2904, Clemson, S. C. WUELLNER, Joseph F. (E) 1602 Galion Ave., Cleveland 9, Ohio (Ferro Corp.) WURTSBAUGH, C. G. (\\') Glostex Chemicals, Inc. 3056 Bandini Blvd. Los Angeles 23. Calif. WUSKE. H. H. (5) 414 Case PI.. X. W., Canton, Ohio (Metropolitan Brick, Inc.) WYATT, Bradley W. (5) Pacific Clay Products 9500 S. Norwalk Blvd. Los Nietos, Calif. WYCKOFF, W. R. (R) Joseph Dixon Crucible Co. 167 Wayne St., Jersey City 3, :\. J. WYGANT, James F. (RIJ Standard Oil Co. (Indiana) Engineering Research Dept. 2400 New York Ave., Whiting, Ind. WY:ViA", George F. (S) Ozark Smelting & Mining Co. W. Fourth St .. Coffeyville. Kans. WY~DHAM-Ql.'IX,Francis H., Jr. (Rl) Box 30~, Avonmore, Pa. (General Refractories Co.) WYSONG, Charles F. (B) 425 Clay St., ~1arietta, Ga. (Georgia Institute of Technology) WYSOR, D. C. (R) General Chemical Division Allied Chemical Dye Corp. 40 Rector St., Xew York 6, N. Y. y YAMAGUCHI, Mitsuo (W) 72 Oakwood Ave., Arlington, N. J. (Noritake Trading Corp.) YAMAMOTO, Hideo (G) 305 "V. 89th St., New York 24, N. Y. (Asahi Glass Co., Ltd.) YA!\lASAKI, Kazuo Chemical Institute, Scjence Faculty :\agoya Vniversity Chikusa, Xagoya, Japan YA~IACCHI, T. Tokyo Kogyo Daigaku (Tokyo Institute of Technology) Ookayama, !\[eguro-Ku, Tokyo, Japan Y.-\RTE, Andrew A. l W) Productos Ceramicos, S. A. Apartado 486, !\lonterrey, N. L., Mexico YARTE, Eugene A. (W) Industrias Procesa, Apartado 486 ~lonterre)', K. L. 11exico Y.-\TES. Donald :\ .. Jr. 8-,\ Daniel Dr., Clemson, S. C. YAVORSKY, Paul J. (B) McDanel Refractory Porcelain Co. Beaver Falls, Pa. YAWnZ, Murray (G) Fish-Schurman Corp. 70 Portman Rd., New Rochelle, N. Y. YEATER, Roy G. tG) Fostoria Glass Co., Moundsville, W. Va. YEXCKEX, Arthur J. R. E. L. Yen"cken & Co. Pty. Ltd. 58-72 Queen's Bridge St. South Melbourne, Vic., Australia YERRICK, William B. (R) Allegheny Ludlum Steel Corp. Brackenridge, Pa. YOCOM, Ray A. (G) Cnited Clay Mines Corp. 101 Oakland St., Trenton, N. J. YOSHIKI, Bumpei 304 Tsurumi-cho, Tsurumi-ku Yokohama, Japan (Asahi Glass Co.) YOUMANS, Robert M. Box 4264, Georgia Tech., Atlanta, Ga. YOUNG, David A. (S) Cloud Ceramics, Concordia, Kansas YOUNG, George F. (G) Demuth Glass Works, Inc., Box 629 Parkershurg, W. Va. YOUNG, Howard S. (B) R. R. 1, Chadds Ford, Pa. (Ii:. I du Pont de Nemours & Co., Inc.) YOUNG, James John G. Stein & Co. Ltd. Manuel Works, Linlithgow, Scotland YOVNG, James E. (S) Structural Clay Products Research Foundation, Geneva, Ill. YOUNG, John C. (G) Portuguese Bend Club Portuguese Bend, Calif. (Hayward Scientific Glass Corp.) YOUNG, Lloyd G. (G) Corning Glass Works, Corning, N. Y. YOUNG, Robert W. (G) American Optical Co. Glass Research Lab. Southbridge, Mass. YOUNG, Stanley H. (RI) Cleveland Quarries Co., Amherst, Ohio YOl'XG, Vincent M. (G) American Optical Co. Southbridge. !\Iass. YOl'NG, Willard G. (WI) Case Manufacturing Corp. 1000 W. Pine St., Robinson, 111. YOUNG, W. O. (WI) 6 Livingston St., Honeoye Fans, N. Y. (Victor Insulators Div., I-T-E Circuit Breaker Co.) YOUNGBLOOD. Charles J., Jr. (G) Mississippi Glass Co. 88 Angelica St.. St. Louis 7, Mo. YOUNT, Richard V. (G) C. Tennant Sons & Co. 100 Park Ave., New York 17, N. Y. :i ROSTER 125 ."""----------~--_ ; 1 ,ZEY, ~!arvin G. (D) Fostoria Glass Co., 1200 First St. :--Iouncis\"ille, W. Va z \\ illiam A. (\\') n\\ood Dr. rewsbury, :\. J. ic Tile ~1fg. Co.) INI ER, Geo. B. (W) Shenango China, Inc., :\ew Castle, Pa. -iO\\'IAK, Peter P. (5) 515 S. E. 21st St. M illeral Wells, Te"as (Te"eramics Inc.) 'FE, Richard C. (W) 162 Penfield St., Pomona, Calif. <Pomona Ti!e Mfg. Co.) ~BO. George (G) 88 !-Ielrose St., Vinclantl, :\. J. (Kimhle Glass Co.) VIS. Lewis (W) 11012 S. Chanera, Inglewood, Calif. (H. F. Coors Co., Inc.) \\ISTO\\,SKI. Arthur V. (WI) 904 Ohio :he., Trenton ~. :\. J. HRLALT, Herbert A. R. \R) Calcium .'\Iuminate Ccmcnt Corvo 104 E. 40th St., ~ew York 16, N. Y. ILLER. Irwin F. (M) 150 Mason Dr. Manhasset, Long Islanll, N. Y. (B. F. Drakellfeld & Co., Inc.) ISEL. Eva S. (D) South Mountain Rd. _ Xew City. Rockland Co .. N. Y. (Industrial Designer) ZELLER CORP. (R. E, Costello) Fort Wayne Rd., Defiance, Ohio L:ERFOSS, Samuel (BF) ~liQeral Products Div, Xational Bureau of Standards Washington 25, D. C. ZICKEFOOSE, Ellis J. (R)Griffin \\'heel Co. 445 K. Sacramento Blvd. Chicago 12, 111. ZIEGFELD, Robert L. (M) Lead Industries Assn. 60 E. 42nd St., Kew York Ii, :-\. Y. ZIEGLE, Glenn D. 409;~ W. University, Champaign, III. ZIMAR, Frank (G) Corning Glass Works :'.Iain Lab., Corning, N. Y. ZDIMER, David C. (WFI) 513 Harding Rd., Zanesville, Ohio (Kelson McCoy Pottery Co.) ZDDIER:\I.\X, Joe A. 1120 Downey St., Apt. 1, Radford. Ya. ZDD1ER~IA:\, Philip D. 611 W. Fayette Ave., Effingham, Ill. ZlM~IERMAK. William F. 3836 McNicholas St. Cincinnati 36, Ohio (General Electric Co., Gas Turbine Div.) (B) ZINK, George H. (El) A. O. Smith Corp. 3533 N. 27th,Milwaukee 16, Wisc. ZINK, Harold F. (G) Owens-I1linois, 1700 N. Westwood Ave. Toledo 1, Ohio ZLOCK, Evan P. (G) 1-T-E Circuit Breaker Co. 601 E, Erie Ave., Philadelphia 34, Pa. ZLOTKICK, Herbert (BJ) 7902 Bay Pky., Brooklyn, :\. Y. 1:\1 ucon Corp.) 7Ll'PKO. John E. (B) 6227 \\. alker St., Philadelphia, Pa. (General Electric Co.) ZXEDIER, Joel E. (BI) 13 Donna Rd .. Framingham, :\Iass. (Raytheon :\lfg. Co.) ZORZI. Eugene R. (:\1) C. Tennant. :>Oll' ~ Co .. 111(1 I'arl< .-\\e. ;\ew York 17, ;\. Y. Zln~AK. Stephen J. (\\') Bo" 1599, Trenton, ~. J. \ General Porcelain Co.) Zl':'.I\\'.-\LT, Donald ,\. (\\') 10519 S. Kibbee. \\'hillier. Calii. I Collin, Radi(, Co.) n'~ICK. :\lichael J. (B) 2740 S. 11lth St. \\'est Allis 19, \rise. \ General Electric Co.) Z\'ANUT, Albert J. (B) Lincoln Electric Co. 22801 St. C1:Iir A\e., Box 3115 Cleveland, Ohio ZVANUT, Frank J. (M!) 14533 Bayes A\'e., Lakewood, Obio (Godfrey L. Cabot, Inc.) ZWERMANN, Carl H. (BF) 806 W. Main St., Robinson, Ill. ZWETSCH, Artur Villeroy & Boch Mettiach/Saar. German)' I ', ! I ,I I :! Addenda LBERS, Ronald R. Iowa State College 2391\ Frilev Hall. ,\mcs. Iowa LTE!-IOSE. 'Earl R. Box 26.1. Pleasant Gap, Pa, .RTHVR, Reuhen B.. Jr. 1'l0!\.'~ Park Dr., Raleigh, N. C. AVER. Richard F. Box fi35. Alfreel, ~, Y. RO\\:\. Fielding (X) Sprague Electric Co. Xorth Adams. Mass. .l:R:\S. Paul E. (WI R. R. 5. Graceland Rd. :\ew Castle. Pa. t Yitro Manufacturing Co.) :.\PORALI. Ronal.] 01.' W. Collegc \\c. Statc College. Pa. ISEK. La\\Tence J. 7 S~"Camore St .. :\atrona. Pa. )ELOTT. Charlcs R. 411~ S. B""e\. erhana. Ill. )K.. \\'ilIiam' T. 'onr; School of ~I ines m;tory Rm . .114. Rolla, Mo. ) .' ...\ugnst F. 2122 Lincoln \\a~. \mcs. Towa DRl::\!!lIO:-\D. W. Wendell (G) 4711 \\'inllequah Rd. :\ladison 4, Wis. (Bjorksten Research Lab.) DCXS!l-IORE, Gordon K. 120 !\inth St.. Philipsburg. Pa. FENTON ART GLASS CO. I Frank M. Fenton) \\'illiamstown, W. Va, FOLWELL. ;\Iarjorie Box 4~8. ,\\fred, :\. Y. CERSCH. Herbert (S) <)800 Oakwood Dr.. Twinsburg, Ohio (Horizons, Tnc.) \;RIFFIN. :\Iargaret Box 488. Alfred. X. Y. KEBLER. Richard W. (B) Linde Co.. Speedway Lah. Bo" 8237. Indianapolis 24. Ind. KEEXEY. Bert O. (5) Kan,as State Teachers College 11)19 S. Locust. Pittsburg. Kans. KITCHEX. Alan J. "5 E. :\Iain St ...\ngelica. N. Y. KCl\\.\LCZYK. Rohert A. 2.;7 \\'. Bea \'er Ave State ('ollege. Pa. ~IILLER, Kenneth \\'. (RJ.I Brush BenIlium Co. 4301 Perki'ns .\\e.. Cle\'eland 3, Ohio ~.\GAX, Raymond )l. Box 767, A\fred, N. Y. "ESTER. Ralph Delta Upsilon. State College, Pa. REES. Glenn H. 41 Hilltop Trailer Park State College. Pa. RESTREPO. Ramiro Box 1261. Alfred. K. Y. RILEY. William C. (\\') Battelle :\1 emoria I I nstitl1te 505 Kin!!: .\\'e , Columhu" 1. Ohio S.\LES. Arthur T. Bo" 3906. Gen,gia Tech. 5ta. :\ tlanta. Ga. SCHlTLTZ, Donald I. 130 Heister 51.. ~tate College. Pa. SCXDY, George J. 95 1'\. Mill St .. \\'est :\anticoke. Pa. TISDALE. Richard L. Box 131\5. Alfred. :\. Y. VAX HORK. 'ohn H. 1103 W. Illinois. Urbana. Ill. VAN RAVESTEIX. John H. 2~6 "A" St .. Clemson. S. C. !' I I :, R(l~n:R 127 --------.... National In~titute of Ceramic Engineers ember Grade kock, Albert S. 'bery, D. F. 't, Leslie R. :nmerman, J. H. '!drews, Andrew I. cchbold, Walter H., Jr. rmstrong, Leland R. mold, Howard C. mold, Thomas M. rrance, Frank C. ustin, Chester R. ydelott, Elliott C. aabilceoyc, krhl Paul oyd R. air, George J. aldauf Earl E. aque, Harold W. arringer, Lawrence E. aumann, Henry N., Jr. cals, M. Douglas eam, James R. eecher, Milton F. eeton, Earl E. enbenek, Raymond ennett, . A. Lee ennett, Dwight G. ennett, Myles P. erkelhamer, Louis H. etz, George C. evis, Ralph E. irch, Raymond E. iI _Don, AW. R.,eJifr. I illiam V. I ry H. lessing, Robert Lee lume, Arthur J. oeker, V. W. ognar, Edwin J. ollinger, Robert H. ooze, M. C. oros, John owne, Martin S. o)'d, John E. oyd, Robert C. radley, R. S. radwell, Cyril rarnlett, William P., Jr. randt, William O. rown, Donovan P. rown, Lawrence H. rownell, Wayne E. rush, George D. ;ryant, Eugene E. ,uckner, O. S. ,urchfiel, B. M. urdick, Milton D. urkhalter. Edward utler, C. Edward, Jr. aito, A. M. all ahan , H. D. allinan, Edward E. ampbell, Robert M. arruthers, John L. arter, F. B. arter,' Herbert D. artwrigbt, S. V. .avanaugh. D. J. ayford, James M. harbonnier, William P. hristman, H. M. lare, Robert L. 'Iark, John D. Chard E. . Eugene C. : obert W. o ,William W. ole. Sandford S. :oleman, Robert L. 'ollins, Paul F. OL. 3fi. !\o. 10 (19.57) Membership Roster Collins, William G. Commons, Charles H., Jr. Conover, Ray C. Contardi, William A. Coo\<, Ralph L. Coroes, John E. Couch, Albert H. Cramer, W. E. Crandall, Eugene R. Crandall, James R. Crandall, William B. Crawford, George E. Crawford, J. L. Cress, William C. Curtis, Carl E. Dager, Probert W. Danielson. R. R. Davies, Chester A. Davis Harry E. Day, 'rack F. Day, Ralph K. Day, Robert B. --Dear, Paul S. Debenham, W. S. DeRemer, John W. Deringer, W. A. Diamond, Grant S. Dickey, John M., Jr. Dietterle, Edwin W. Dilliard. Paul D. Dodd, Charles M. Donahey, John W. Donnenwirth, A. L. Doran, Robert F. Dressler. Philip Drouhard. W. J. DuBois, H. B. Duckworth, Winston Duplin, V. J., Jr. Eagle, J. Eugene Easter, George J. Ehman, Roy G. Eitel. Wilhelm Elder. John C. Ellard, Earle R. Emrich. Emerson W. Erzen, Frank C. Everhart, J. O. Ewing, Robert F. Fabianic. William L. Fahrenbruck. William O. Failmezl!'er, Howard Fallon. Frank J. Fay, Wayne X. Feagin, Roy C. Fellow., R. L. Fels. C. G. Fessler. A. H. Fitzgerald, Alex E. F1eminll, Charles A. Flint, E. P. Flint, Francis C. Foraker, Robert W. Ford, Walter D. Frahme. Herman H. Frame, Dudley P., Jr. Francisco. Allen C. Fraser, Orray T. Frazier, J. Earl Frechette, Van Derek Frederick, C. L. Freeman, Charles A. French. Preston W, Fritz. E. H. Fuller, Donald H. Fuller, Richard B. Fulmer. Raymond C. Funnell, John E. Gallup, John Gan'e, T. Walter Gaskins, W. W. Gautsch, Murrav C. Geiger, Charles F. Geller, R. F. Gerster, C. W. Gibson. R. L. Gill, Josepb \V. Gill, LaVerne N. Gitter, Alice Josephine Glaze, Francis W. Goin, Fred L. Goodrich, Hobert R. Gould, Robert E. Green, John R. Green. R. S. Gregorius, J. S. Grigg, Paul E. Hagan, M. A. HaRar, Donald Hallett, Crawford W. Hamilton. Edgar H. Hanna, H. H. Hanna, Ralph E. Hansard, W. Carey Hansen, J. E. Hardy, Ronald G. Hamish, John D., Jr. Hartshorn. T. D. Hartwig, Frederick J., Jr. Hawks, Ralph L. Hazen, E. J. Heddell, James V. Heiligman, H. A. Helser, PerrY D. Hemsteger, Samuel E. Henderson. Frederick C. Hendren. Robert R. Henry, Edward C. Hepplewhite. J. W. Herold, Paul G. Hewitt, L. C. Hicks. James C. Higgins, Waldo W. Hopkins, Robert W. Horak, William Homing, Roy A. Hornung, Martin R. Hossenlopp. Hostetter, J. Acr.thur M. Howe, Elroy E. Hower, Lawrence D., Jr. Hower, Robert S. Hughes, Walter M. Hunt, John F. Huppert, Paul A. Hutchison, Clark Hutchison. R. C. Hyde. Collin I rvine. George C. hes. John B. Jackson. A. Curtis Jacob, Bernard T. Kauffman, John R. Kautz, Karl Kay. William T. Keith, Wendell P. Kempf. William C. Kenagy, William L. Kent, Joseph P. Kent. N. Johnson Keplinger, Robert B. Kerper, Matthew J. Kerr, W. Ravmond King, Burnham W., Jr. King. R. M. Kirkendale. George A. Kirkpatrick, Frank A. Klinefelter, T. A. Knapp, William J. Knecht, A. O. Knoblaugh, Walter C. Knudsen. Friedrich P. Koch, William ). Koehler, W. A. Koenig, Charles Jacob Koenig, John H. Koos, E. K. Koshuba, Walter J. Kraner, Hobart M. Kriegel, W. Wurth Kronman, Samuel J. Kuechler, Adolph Kunzman, Edward E. Laird, Charles Lambe, C. M. Lambertson, Wingate A. Lane, Richard O. Lannes, Eugene M. Latimer, Horace L. Lawrence, Ralph V. Lee, P. William Leibson, Jacob S. Lennon, John W. Lesar, Albert Lewis, Gordon E. Ligon, Elmer R. Limes, Robert W. Lindsay, Carey E. Lintz, Elmo H. Lobaugh, Frank E. Louden, R. H. Lowe, George K. Luks, Daniel W. Lull, Stanley E. McCann, D. M. McCann, Sidney W. McCollom, Perry C. McDonald, E. F. McDougal, Taine G. McDowell, Samuel J. McElroy, R. H. McIntyre, G. H. McMahon, John F. McNamara, E. P. McVay, T. N. MacDonald, R. W. Magid, H. S. Maim, Arthur T. Mandel, Charles J. Martin, Ralph H. Massengale, Gordon B. Matson, Frederick R. Maupin, Addison Medert, Warren C. M~ka, Edward Meloy, C. L. Merck, Walter J. Merriam, Jack G. Merritt, Clarence W. Merritt, Lester M. Merry. E. B., Jr. Messimer, Laverne A. Metzger, A. J. Michael, Frank L. Miller, Grant E. Miller, Howard L. Miller, John B. Miller, Russel A. Milliken, Edward C. Minton, G. Z, Mitchell. Lane Mitra, H. K. Mohr, J. Gilbert Mohr, William C. Montgomery. Earle T. Moody, Willis E. Moore, Dwight G. Moore, Richard S. Morgan, Stuart F. ROSTER 129 rgan, \Yilliam R, ,er. John L. wre~', Fred W. IH.Jy, O. S. cray. ~lallrice A. .la~. Loui~ '.'01, ForRreesxtfo\rYd. Jr. red erick It. .en. Rangwald S. :1llan, Fred B. 'tunl, Ray \\'. :mer, \Yillard E. ,k. jo>eph A. Hch. \\ JliIam ~l. J,. J. Clair rkins. \Yalter \\'. rr)'. Robert F. :ersen. Fred A. ~iffer. Wilbur H. lllips, Charles J. illips, Edwin L. illip~. James G. Ice. Tom M. mje, Christian W. wkenhorn, William J. )etz. Edwin C. Ie. Gordon R. rst. Edward G. .rter, Frank R. ste. Emerson P. stlewaite, D. E. ice, James E. ince, Alan T. 'ior, Harold D. mtney. L. E, line, Frank F. Lpp, Carl H. ,a, Robert F ~imer. john J. ,mington, Victor H. :lodes, Fraser B. ,lodes, Ralph R. :chmond, joseph C. .cker, Richard W. i.I~h~ ~ggart ) . Richard E. lbs . James T. x1riguez. A. R. 1gers, Edwin J. ~Ike, Herbert J. lse. Ralph 0SS, Donald W. oup. Rolland ussell, Howard F. usselI. Ralston. Jr. \nder,. Gerald F. lIldmeyer, Karl H. ~ntomieri, S. Lewis mnders. Alfred C. :hlehr. W. Raymond :hoeninger, Irvin W. choeppe1. Norman :hofield. H. Zane chotts. Walter H. ,hroeder. Fred W, churccht. H. G. chwartz, M. A. chwartzwalder, Karl cott, Murra,' cott. Roger 'F. hardlow. L. Russel harp. E. \V. haw. L. 1. .haw. Myril C. hepherd. John F. herrill. Robert R. :herwood. Robert F. hevlin. Thomas S. :himer. J. B. iegwald. Clvde R. :iI \'l~rman. .-\Iexander :ilverlllan. William B. ';mison. A. L. ,imons. T. Mitchell 'i n. l;larold E. , Kenneth G. , hn A. ; . C :\. ;mith. Hillard A. ;mith. l-.:enneth E. ;mith. L~land Smoot, Jack M. Snyder. Ernest B. Solomon. Earl ~ommen'ille, J. L. Sosman. Robert B. Speil. Sidnn - Spencer,Strong, G. H. Spires. Stephen T. Sproat, Ira E. Stafford. W. L. Steimke. Frank C. Steinhoff, Fred L. Stevens. Frank J . Stevens. Robert P. Ste\en,on. James K., .1 r. Stewart. John A. Stolte. :\orman H. Stone, Robert L. Strod. Arvid J. Sulli\an. John D. Sutton. \Villanl J. S\ec.J.J. Swentzel. John P. Sweo. Benjamin J. Sylvester. George R. Tailby, Roland V. Tate. Frank E. Teague, Jo M.. Jr. Tefft, Phillip W. Thiemecke. Harry W. Thomas, David W, Thompson, Clyde L. Thornton. Paul E. Thumauer. Hans Toulouse. Julian H. Trabert, Loren A. Tredennick, William T. Treischel, C. C. Trostel. L. J, --rucker. Donald J. Tucker. Harve)' C, Tucker, Roland E. Turk, Richard H. Turner, P. P . Jr. Twells, Robert Van Vlack. Lawrence H. Vaughan, W. Harry Watts, Arthur S. Webster, Charles E. Weis, Joseph W. Weston. Ralph H. Wheeler, William H. Whitaker, Fred A. Whitaker, L. R. White. Harold E. Whittemore, J, W. Whittemore. O. J .. Jr. Williams, Harry M. Williams, Walter E. Wiss, J. E. Worcester, W. G. Wright, Edward P. Wright. J. W. Wygant. James F. Young, Stanley n. Young, W. O. Young, Willard G. Zimmer, David C, Zink, George H. Zvanut. Frank J. Associate Member Grade Abernethy, Lonnie L. Alexander, John M. Allen. Richard L. Ames, R. N. Anderson. Harry L. Ault, Neil N. A7.evedo, ~larcello R. \' . de Baab, Kenneth A. Barnes, Harrv H. Beals, Robert' I. Heard. Clinton'L. Hergeron. Cl ifton G. Blackwood. James M. Blum, Seymour Bolon. David G. Bradley, Fennimore !\. Rran!. Davill G. llreedlove, James G. Brigham, Ralph V., Jr. Bristow, Robert H. Brown, John J., Jr. Brown. Raymond J. Browne, Thomas C. Buchan. M. A. B'1ckles, Paul E. Burkert. John G., Jr. Burks. Cecil ~L Bush, James W. Busteed, Donald J. Caldwell, William D. Campbell, Cory V, , Carl, John E. Carlson, William G. Carnahan, Thomas D. Charland. Tel L. Cle,-erly. Robert B. Cole. Sandford S.. Jr. Cooke. David C. Crookston. James A. Croom. Henn' C. Crosby, Don~ld P. Crowley. Michael S. Curcio, Anthony L. Curran. Robert Deadwyler. Earnest W. Deignan, Charles J. deProsse, Victor A. de Roux, Juan Ramon Desaix. Herbert A. Deutscher, Jerome S. de Ville, Ralph W. Devlin, James F. Diaz, Jose J. Dlugozima, W. R. Donley, John C. Dorn, G. Neal Dorsey, John J. Dulberg, I rYing Dungan. Robert H. Elston, Keith Emrich, Barry R. Emrich, Harold W. Evans, William W . Faust, Ernest H., Jr. Fenity. Robert D. Fillmore, Charles L. Fish, E. Thomas Fitzsimmons. Elm"r S. Fonvielle. Frank P., Jr. Ford, George D. Forkner, Henry R. Francis, Ronald K. Franklin, Earl W. Franklin, William S. Fulker, Richard H. Fuller. L. R. Fulrath, Richard M. Galbreath, William \\'., 1r. Garcia-Leal. Ramon . Garlick, Philip L. Garvey, Lawrence P. Gates. Daniel W. Getto. Allan Giess, Edward A. Giles, James H., Jr. Gomall. Henry A. Grant, John F. Grove. Robert L. Hackler. W. C. Haertling, Gene J J. Hammer. R. Hannon. Richard C. Harr, W. J. Harris, Ransom S., Jr. Harrison, William B. Hart, Wade J, Hasko, Stephen Hauck, Charles A. Hau~er, Richard E. Hawkins, Robert J. Heebner, John C. Helliesen. Richard O. Herko, Edward Hessinger. Philip S. Hitzeman, Roger L. Holl. Barton S. Holmstrom. Joseph H. Hood. L. Scott Hoogendoorn. Helen ~l. Horton. Paul B. Huettig, Fred R. H)'nes, Frank J. Immediato, Robert Jaffe, Bernard Johuson. Alton E. Johnson. George E., Jr. Johnson. James E. Johnson, James R. Kallup, Charles, J r. Kalman. Frank R. Kamler, .-'l.nthony R. Kancczawa, EJ\\ard K. l-.:antor. :\ eil I. Kasten, Vernon L. l--:.atz, ,1oseph M. l--:.ehl, :\elsun H. l-.:elly. William J. Kcnt. \\'illiam B. l--:.Cl'ka. George ~I. Kershner. \\'illiam G. Kester. Ralph G. Killmar, Henrv .:II. l-.:insman. Bradley Q. Kuyper. Geoffrey S. Kyonka . .1 oseph C. Lachman, Irwin ~l. LaMaire, Robert V. Laurie, Dominic Lawrence, Walter F., JI. Layton, Donald R. Leddy, Robert M. Lefort, Henry G., Jr. Lester. Ronald H. Liederbach, William H. Lindquist. C. Alan, J r. Long. Russell E. Longenecker. Robert J. Longfritz. Robert K. Lorey. Frederick D. Lowe. Earl C. Ludwig, David W. Lunak, Thomas E. Lytle, Jack A. ~lcAllister. Christopher McClave, James W. McClelland, Roland H. McCormick. Stewart \\'. McEvoy. Robert J, McKeand, In'in J. McKeen, Richard D. McKinnis, Charles L. McLaughlin. Joseph K. McMurtry, Carl H. McWilliams. Robert J. Marcus, Leon Mattison, William F . JT. Mayfield, Manville J. Meredith, Edward J. Meredith. Neil F. Michelotti. Joseph E. ~liller, Edmund H. Moffett, Robert A. Mohanty, Gajendra Nath Mohler. Neal F. Montgomery. Eldwin C. Morena. Alfred Morgan, Robert A. Mornin. Bob L. Moss. LeRoy L. Mueller. Edwarrl E. Mueller, James 1. Muller, Max Mulroy, James l' Kagan. Harold R. !\ obles. Eugene L. Nohle. Richarrl C. Kordquist, Clarence E. Oberschmidt. Leo E., Jr. Oberst, Robert B. Ogden. William D., Jr. Orzano, Michael J. Ottoson, Axel Packman, Willard D. ralmour. Hayne, III Parker, Harry Parson. James A. ROSTER 131 I' I I; ; .. I :: ,. i! !I !,, i., 'ick, Robert F. ech, Howard C. 1man, Alexander u, Richard K. :, Robert W. orson, Jack L. enix, Richard C. ames F. ilton E. t amin F. sner, Donald D. ch, Harry W. npes, Paul E., Jr. Iskers, Richard H. ming, George W., Jr. d, Edward M. e, Hal H. gert, Richard P. .ler. Hermann L. linson, Richard R. ~ers, Melvin F. nano, Pasquale J. It, H. Dean wlands, Robert R. e, Charles V. nell, Nonnan Keith "ders, Loren D. 'lies, John B. Schneider, Samuel J., Jr. Schuck, John F., Jr. Schwartz, Bernard Scott, Robert M. _ Seckman, Harry D. Sel1ers, John T. Semmelman, John O. Shapiro, Howard Shaw, Oarence F. Sheets, Herbert D. Shel1ey, C. B. Shonkwiler. Francis P. Shook, William B. Shopher , SterlinR D. Shulze, Charles E. Sinclair, Robert R. Siska, Albert H. Smalley. Howard F. Smith, Richard D. Smyl}', James P. Soderstrom, William K. Sontz, Arthur Soxman, Edwin J. Spangenberg, William C. Stalter, Thomas L. Stathis, Andrew W. Stetson, William C. Stettner, Donald H. Stoddard, Stephen D. Stoen, Roger C. Stoia, John Z. Stoops, Robert F. Storer-Folt, John P. Stradley, J. Grant Stradley, Norman Stroupe, Howard E., Jr. Sullivan, Paul A. Sutherland, Frank R. Tamacki, \Valter J. Tauber, John A. Taylor, Howard U. Thiemann, John W. Thomason, James F. Thompson, William ~r., Jr. Thor, Murner E. Tibbals. Harvey L. Tinklepaugh, J. R. Tostevin, Edgar R., Jr. Townsend, William O. Tripp, Harlan P. T roste!. Louis J., J r. Troy, H. Neal Truesdale, Richard S Tse, Shou-chenR Turbett, Paul E. Twells. Robert G. Unum, Robert F. Van Alsten, Roy L. VanDer Beck, Roland R. Van Schoik, Dickson M. Van Wiggeren, Charles G. Venable, Charles R., Jr. Vincent, George L. Vitolo, Sylvester A. Vukovich, Milan, Jr. \\'arren, George Waters, Martin R. \\Tatkins, Charles Watkins, Robert V. Watkins. William E. \Yatts. Richard L. Weiss, E. Joseph \\' elch, A. Philip Westlake, C. Rogers Wherry, Al1en P. Williams, Alan B. Williams, Leroy L., Jr. Williams. Robert M. Wilson, Hugh H .. Jr. Wilson, Robert C. Wood, Russell K. Wooley, Seward E Wyndham-Quin, Francis H., Jr. Zawistowski, Arthur V. Zneimer, Joel E. Membership in The American Ceramic Society brings to you: The Ceramic Bulletin .. a monthly publication devoted to news of The Society and of its members, descriptive articles 'and papers on the application of fundamental research. Its advertising pages provide a high-prestige media for reaching ceramists in every branch of the industry. mittees in specialized fields assuring rigid standards of technical excellence. Local Sections .. In 20 centers of ceramic operations in the United States members of The Society hold frequent meetings to hear papers, discuss matters of common interest and enjoy good fellowship. I The Journal. . depository of original research in the ceramic field, an archive of scientific knowledge. When something new is developing in ceramic science you'll find it presented authentically, accurately and first in The Jouma\. Ceramic Abstracts .. a monthly report on all that is published on ceramic technology. The literature of every nation is followed closelv to assure that all material of ceramic' significance is brought to your attention. Publication .. Acceptance of a scientific paper for publication by The Society is a mark of high recognition, editorial review com- Meetings .. Ceramists of the world gather for the Annual and Fall Meetings of The American Ceramic Societv and its Divisions ... for the presentation and discussion of papers on ceramic science, for the exchange of ideas, and for visiting with other ceramists. Highest awards of the ceramic world are presented at these meetings, in recognition of achie\'ement and service in the ceramic field. Enjoy the prestige of membership in your industry's scientific society, plus the obvious advantages of keeping up to date on ceramic developments. The American Ceramic Society, -lO."',') N. High St., Columbus 1-l, Ohio. VOL. 30, Ko. 10 (951) ROSTER 133 I :i ,. ,, ..- . - - . - - . - - -_ _....1IIlII!  The American Ceramic Society BULLETIN A montWy publication de\oted to the proceedings of The Society, discussions of plant, technical, scientific, art, and cooperative research problems. Volume 36, 1957 .-- Charles S. Pearce, Editor James S. Welch, Managing Editor Emmoline R. Jamra, Editorial Assistant Charlotte B. Burgess, Editorial Assistant " Committee on Publications: C. H. Hahner, Chairman; '\W. R. Kerr, J. O. Everhart, and E. P. McNamara Contributing Editors: Officers of Industrial Divisions and Sections I . (For names, see back of Title Page) Executive, Editorial, and Advertising Offices: 4055 Korth High Street, Columbus H, Ohio Publication Office: 20th and Nothampton Streets, Easton, Pa. T I....