Document 06KDov7DMNqkynKe9kXbjxa1m

OFFICERS Pr~sidtnl Karl Schwartzwalder Flint, Mich. Pr~sidtnl-Elul John F. McMahon Alfred, N. Y. Yiu-Prnidtnl! Oscar G. Burch Toledo, Ohio Louis Navias Schenectady, N. Y. C. W. Planje Los Angeles, Calif. Tr~asur~r Andrew Pereny 4Iumbus. Ohio al Sur~/arJ and Editor rles S. Pearce Colum bus, Ohio Commillu on Publications C. H. Hahner Chairman W. R. Kerr J. O. Everhart E. P. McNamara C. S. Pearce (~X officio) Managing Edilor James S. Welch Edilorial A ssislanls Emmoline R. Jamra Mary Weigelt Rohr Charlotte B. Burge.. AdlNrlising Manag~r Arthur S. Koachny Easl"n R~pr~stnla/jo~ WiUiam T. Mohrman, Jr. 501 Fifth Ave., New York 17, N. Y. Phone: Oxford 7-2369 Midw~sl &prlSmlalio~ James K. Millhouse 5124 West Irving Park Rd. Chicago 41, III. Phone: Mulberry 5-0070 Offices cU/jO~J ~dj/orjal, and ado~r. g: 4(b5 North High St., Columbus 14 Ohio. Phone AMherst 8.8645 A. T. & T. Teletype CLS93 Publication: 20th & Northampton Sts., Easton, Pa. PLAINTIFF'S I EXHIBIT CACEMR--151507 erEEmlC~ ulletin October, 1956 Papers Petrology of Fused Alumina Abrasives H. N. Baumann, Jr. . 387 InRuence of Selected Facton in Evaluating Dielectric Strength of Porcelain . 391 Lee A. Shearouse, D. L. Heath, and W. J. Smothers Use of Wollastonite in Artware Bodies ................. 396 Thomas L. Stalter Development of Sewer Pipe Glazes from Volcanic Materials ... 399 Ian O. Knizek A Recolding DiFFerential Thermal Expansion Apparatus Stephan P. Mitoff and Joseph A. Pask . 402 Role of Patents in Development and Research ............... 405 O. E. Williams _......... ~ !' I Articles Hi gh-Temperature Electronicsat General Electric. . . . . . . . . . . . 407 Report of the Research Committee.. . . . . . . . . . . . . . . . 408 Nominations For OFFicen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 416 Rosters Membenhip Roster..................................... 417 Institute Roster ....................................... R.121 Departments In Print for Ceramists. . 2 Mailbox for Readers.. 4 Meetings Calendar 6, 7 Out of the Kiln R-125 Men &Positions. . . . . . 11 Consulting Services .. R-126 Advertisers'lndex.. . . Names.............. Authors. Necrology.......... Section:;. . .. 12 410 412 414 415 Membership Roster The American Ceramic SocietyThis Roster of members is published only for the use of members of The American Ceramic Society. Listings are in alphabetical order. A separate Roster for the National Institute of Ceramic Engineers, showing grades of membership, is on pages R-121 to R-125 of this issue. New members received too late to be included are listed in the Addenda on page R120. These listings give the member's preferred mailing address. "'here this is not his business address his company connection is shown in parentheses. Divisions and other Society affiliations are indicated in parentheses following each name, in accordance with the code given below. The absence of any such designation indicates that the member is from outside the United States or a student member, neither of which has Division affiliation. B-Basic Science Division D-Design Division E-Enamel Division G-Glass Division M-Materials and Equipment Division R-Refractories Division' S--Structural Clay Products Division W-White Wares Division X-~o Division affiliation F-Fellow of The American Ceramic Society J-Junior Member I-National Institute of Ceramic Engineers A ABBEY, R. G. (G) General Refractories Co. 1520 Locust St., Philadelphia 2, Pa. ABBOTT, Gordon H. Rock Enamel (Pty.) Ltd., Box 77 Industria, TVL Union of South Africa ABE, Tosio 1001, Kami-ikegami-cho, Ota-ku Tokyo, Japan (Tokyo Shibaura Electric Co., Ltd.) ABERXETHY, Lonnie L. (BI) Argonne National Lab. D22-2 Metallurgy Box 299, Lemont, Ill. DON POTTERIES, INC. _ M. Lewis) 801 N. Main St. Illgdon, Ill. A MS, Marvin E. (W) Sentr}' Sanitary Corp., Box 427 Mannington, \\'. Va. ABRAMSON, Isaac Av. Copacabana, 959-Apto. 902 Rio de Janeiro, Brazil (Klabin Irmaos & Cia.) ABRILLE, A. Villa San Miguel Brewery, Inc., 1112 Aviles Manila, Philippines ACCOUNTIUS, Oliver E. (R) 118 E. Carter St., Sierra Madre, Calif. (Aerojet-General Corp.) ACHAUER, L. A. (5) Natco Corp., East Canton. Ohio ACHUFF, Charles E. (W) 839 S. Ballas Rd., Kirkwood 22, Mo. (Certain-Teed Products Corp.) ACME BRICK CO. (George PuIs) Box 425, Fort Worth, Texas A C SPARK PLUG DIV., GENERAL MOTORS CORP. (Karl Schwartzwalder) Flint 2, Mich. ADAMS CLAY PRODUCTS CO. (James A. Cunningham) Box 226 Martinsville, Ind. ADAMS, David E., Jr. (W) . 830 Spring St., Latrobe, Pa. (Carborundum Co.) ADAMS, Earl E. (W) National Plumbing Pottery, Inc. Zanesville, Ohio ADAMS, Edward M. (5) Murray Tile Co., Inc. l Ioverport, Ky. , Milton (G) W. Streicher St., Toledo 8, Ohio 'bbey-Owens-Ford Glass Co.) ADAMS, P. Bruce (G) Coming Glass Works Research and Deve)opme"t Coming. N. Y. VOL, 31;, No. 10 (1956) ADAMS, S. L. (G) Joseph E. Seagram & Sons, Inc. Seventh St. Rd., Louisville 1, Ky. ADAMSTON FLAT GLASS DIV., ROLLAND GLASS CO. Box 631, Clarksburg, W. Va. ADCOCK, Albert S. (WI) American Radiator & Standard Sanitary Corp., 6920 Franklin Ave. New Orleans 22, La. ADCOCK Lawrence W., Sr. (W) 562 E. Main St., Logan, Ohio (Logan Pottery Co.) ADCOCK, Lawrence W., Jr. (W) 1547 Empire Rd., Wickliffe. Ohio (Clevite Corp.) 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., Brooklyn 22, N. Y. AFFLERBACH, Harry (E) R.R. 4, Frankfort, Ind. (Ingram-Richardson, Inc.) AGARWAL, Gopal Mohan 104 E. 15th Ave., Columbus 1, Ohio 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 AHEARK, V. P. (M) Kational Industrial Sand Assn. Munsey Bldg., Washington 4, D. C. AKAM, J. W. (S) Natco Clay Products, Lttl Aldershot, Ont., Canada AKMORA:'-:, Miss Huban 398 Marlborough St., Boston, Mass. AKRON PORCELAIN CO. (F. W. Butler) Akron 14, Ohio ALBERSSCHOENBERG, Ernst (W) 13-B-3 Redfield Village, Metuchen, N. J. (General C~ramics Corp.) ALBERT, Joseph (W) 1868 Windernere Dr., N. E. Atlanta, Ga. (Albert Pottery) ALBERTALLI, Stephen L. (G) Corning Glass Works, Harrodsburg, Ky. ALBERY, D. F. (SFI) 1433 23rd St. N. W., Canton 9, Ohio (Stark Ceramics, Inc.) ALBRECHT, Ernst Keramische Fachschule Hoehr-Grenzhausen/b Koblenz, Germany ALCOCK, Ronald H. "Ferrum" Espana 402-600, Avellaneda Buenos Aires, Argentina (Ferrum, L. A. de Ceramica )' 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) ALENIUS, Carl Axel Karhunkatu 28, Karhula, Finland (A. Ahlstrom Oy. Karhula Bruk) ALEXANDER, A. E. (G) Buchanan Apts. 8D, 155 E. 47th St. New York 17, N. Y. (Tiffany & Co.) ALEXANDER, John B. (M) Southwestern Portland Cement Co. 1034 Wilshire Blvd. Los Angeles 17, Calif. ALEXANDER, John M. (M!) 2376 Hamiltoh Ave, North Bellmore, N. Y. (Swindell-Dressler Corp.) ALGEMENE VERENIGING VOOR De NEDERLANDSE AARDEWERK EN GLASINDUSTRIE (W. J. Bollen) Haagweg 139, Rijswijk, Netherlantls ALGER, Ferris E. (G) Old York Rd., New Hope Bucks Co., Pa. (Consultant) ALLEGHENY LUDLUM STEEL CORP. (Paul E. Perry) Brackenridge, Pa. ALLEN, Alfred W, (RF) Ceramic Engineering Dept. University of 1I1inois, Urbana, III. ALLEN, Ben (G) Coming Glass Works, Coming, N. Y. ALLEN, Ralph (W) 1234 Paddock Hills Ave. Cincinnati 29, Ohio (Briggs Mfg. Co.) ALLEN, Richard L. (RI) E. J. Lavino & Co., Box 365 Newark, Calif. ALLEN, Robert G. (R) Robert G. Allen Co., Box 110 Mechanicville, N. Y. ALLEN, Walter C. (B) Radio Corp. of America Chemical & Physical Lab. 415 S. Fifth St., Harrison, N. J. ROSTER 1 , I J I~ It i ALLEX, Warren W., Jr. (S) Hydraulic-Press Brick Co. South Park, Ohio ALLIANCE WARE, LTD. (R. E. Strain) Box 550, Vancouver, B. C., Canada ALLlEGRO, Lt. JG Richard (X]) -35, F.P.O., Kew York, K. Y. ON, Adrian G. (R) ttelle Memorial Institute 505 King Ave., Columbus I, Ohio ALLMA!\, Orin H. (G) Kimble Glass Co. Owens-Illinois Technical Center 1700 N. Westwood Ave., Toledo 1, Ohio ALT, Leslie R. (S1) 547 Simon St., Hayward, Calif. (Kraftile Co.) ALTMANN, Berton G. (B) 16700 Cypress Way, Los Gatos, Calif. (Kaiser Aluminum & Chemical Corp.) ALTON BRICK CO. (Morris P. Hall) Box 25, Maryland Heights, Mo. ALTSCHULER, Otto (W) 271 Hawthorne A,e., Langhorne, Pa. (Wenczel Tile Co.) ALUMINIUM LIMITED SALES, INC. (R. M. Mathieson) 630 Fifth Ave. !\ew York 20, K. Y. ALUMINUM CO. OF AMERICA (H. P. Bonebrake) 1501 Alcoa Bldg. Pittsburgh 19, Pa. AMERICAN COLLOID CO. (Paul Bechtner) Merchandise Mart Plaza, Rm. 813 Chicago 54, Ill. AMERICAN ENCAUSTIC TILING CO., INC. (Robert A. Williams, Jr.) 1000 N. Cannon Ave., Lansdale, Pa. AMERICAN GAS ASSOCIATION (c. G. Segeler) 420 Lexington Ave. New York 17, N. Y. aAMERICAN LAVA CORP. (R. A. McGinnis) rokee Blvd. & Mfgrs. Rd. ttanooga 5, Tenn. ICAN NEPHELINE LTD. (H. R. Deeth) 25 King St. W., Rm. 2530 Toronto, Ont., Canada AMERICAN OPTICAL CO. (A. H. Bennett) Research Center, Southbridge, Mass. AMERICAN PORCELAIN ENAMEL CO. (Robert Long, Sr.) 1285 E. Keating Ave. Muskegon 36, Mich. AMERICAN POTASH & CHEMICAL CORP. (R. M. Curts) 99 Park Ave., New York, N. Y. AMERICAN RADIATOR & STANDARD SANITARY CORP. (James S. Goodman) 834 E. Broadway Louisville 4, Ky. AMERICAN SMELTING & REFINING CO. (D. K. Wright) 120 Broadway. Kew York 5, K. Y. AMERICAN WINDOW GLASS CO. (A. S. Crandon) 20th Floor Farmers Bank Bldg. Pittsburgh 22, Pa. AMES, R. N. (R1) 10718 S. Morgan St., Chicago 43, Ill. (U. S. Steel Corp.) AMES, Robert G. (W) 69 Jefferson Ave., Cresskill, N. J. (B. G. Corp.) AMIN, R. B. Alembic Chemical Works Co., Ltd. P. O. Chemical Industries Baroda 3, India AMMERMAN, J. H. (R1) 2 Scribner, DuBois, Pa. orth American Refractories Co.) EIN, Alan G., Box 1659 Georgia Institute of Technology Atlanta, Ga. ANCHOR HOCKING GLASS CORP. (William V. Fisher) Lancaster, Ohio VOL. 35, No. 10 (1956) ANCIZAR-SORDO, Jorge Laboratorio Quimico Nacional , MlDisterio de Minas y Petroleos Apartado 2577, Bogota, Colombia ANDERSON, Harlan U. 1424 Federal Way7 Salt Lake City, Utah ANDERSOK, Harry L. (R1) Republic Steel Corp. Youngstown 1, Ohio AKDERSOK, Herbert H. (G) 401 K. Main St., Port Allegany, Pa. (Pittsburgh-Corning Corp.) AKDERSOK, Orson L. (G) Bell Telephone Labs., Murray Hill, N. J. AKDERSOK, R. E. (W) Robertson Mfg. Co., Box 848 Trenton 5, N. J. ANDERSO!\, R. H. (S) Robinson Clay Product Co., Box 545 Dover, Ohio AKDERSON, Robert E. (W) Iroquois China Co., 2320 Milton Ave. Syracuse 9, N. Y. A!\DERSOK, Robert R. 185 Cynthia Dr., Pleasant Hill, Calif. A!\DERSON, Rupert C. (W) Valley View, R. R. 10 Kew Brighton, Pa. (Ma)'er China Co.) AKDERSON, Scott (G) Anderson Physical Laboratory 609 S. Sixth St., Champaign, m. ANDERSON, William B. (E) Titanium Pigment Corp., 111 Broadway New York 6, N. Y. AKDREASEN, A. H. M. (Honorary) Oster Voldgade 10 Copenhagen K., Denmark (Ro)'al Danish Technical Universit)) ANDREWS, Andrew 1. (EF1) University of Illinois 204 Ceramics Bldg., Urbana, Ill. ANDREWS, Clifford M. Ferro Enamel S. A., Caixa Postal 2948 Sao Paulo, Brazil ANDREWS, Ray (G) B. F. Drakenfeld & Co., Inc. Box 519, Washington, Pa. ANTAKI, Emile Ferrum S. A. de Ceramica & Metalurgia Espana 402/600 Avellaneda, Argentina AKTHONY, Benjamin F. (R) Ferro Engineering Co. 1400 Hanna Bldg., Cleveland 15, Ohio AKTHONY, George H. (R) 41 Marion Dr., Poland, Ohio (Youngstown Sheet & Tube Co.) AKTHOKY, Harry L., III (R) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. AKWYL, Robert H. (S) Lisbon St., Glenmoor MC-22 East Liverpool, Ohio APT, Elmer E. (S) A. C. Ochs Brick & Tile Co. Springfield, Minn. ARANGO, G. Botero Balboa 63-13, Medellin, Colombia (Cristaleria Peldar S. A.) ARCHBOLD, Walter H., Jr. (M1) 125 SmalJwood Dr., Snyder 21, N. Y. (Electro Refractories & Abrasives Corp.) ARCHIBALD, W. A. British Iron & Steel Research Assn. 140 Battersea Park Rd. London, S. W. 11, England ARCHIE, Chad L. (S) Archie Structural Products Co. P. O. Drawer 312, Corinth, Miss . ARCHIE, Chad L., Jr. (Sn Archie Structural Products Co. P. O. Drawer 312, Corinth, Miss. AREKSBERG, Francis L. (R) Vesuvius Crucible Co., Box 8275 Swissvale, Pittsburgh 18, Pa. d'ARGEXTEl:IL, Comte L. de Meeus K. V. Ceramique Maastricht Hoge Barakkenstraat 6 Maastricht, Netherlands ARKETEX CERAMIC CORP. (George W. Shoemaker) 6 N. Walnut St., Brazil, Ind. ARMCO STEEL CORP. (R. S. Burns) Research Library, Middletown, Ohio ARMISTEAD, W. H. (G) 65 E. First St., Corning, N. Y. (Corning Glass Works) ARMSTRONG CORK CO. (E. C. Emanuel) Research & Development Center Lancaster, Pa. ARMSTROKG, Leland R. (R1) 27 Morgan Ave., Washington, Pa. (Findlay Clay Products Co.) ARKOLD, Howard C. (EFI) 76 Standish Blvd., Pittsburgh 28, Pa. (Federal Enameling & Stamping Co.) ARXOLD, Robert M. (B) Arnold Engineering Co., Marengo, Ill. ARNOLD, Russell E. (SF) Box E, E. Akron Station, Akron 5, Ohio (Robinson Clay Product Co.) ARKOLD, Thomas M. (W1) Red ""ing Potteries, Inc. Red Wing, Minn. ARRANCE, Frank C. (WI) Coors Porcelain Co.. Golden, Colo. ARRAKDALE. 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. Chicago 7, Ill. ARSEM, William C. (Bl 7829 Old Chester Rd., Bethesda 14, Md. (Office of Kaval Resea rch) ARTHUR, Edwin P. (G) 3110 Las Faldas Dr., FulJerton, Calif. (Beckman Instruments, Inc.) ARTIS, William E. (D) Nebraska State Teachers College Chadron, Nebr. ARWINE, A. S. (R) Refractory & Insulation Corp. Port Kennedy, Pa. ASDELL, Bernard K. (W) Edgar Division Minerals & Chemicals Corp. of America McIntyre, Ga. ASHER, John W. (G) Box 382, Corning. K. Y. (Corning Glass \\lorks) ASHWORTH, GEORGE L. & 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 Praca Coronel Fernando Prestes. 110 (Edificio do I.P.T.) Sao Paulo, Brazil ATWELL. George D., Jr. (S) Bickerstaff Brick Co. Box 1178. Columbus, Ga. Al'ER, Konrad F. Ketstal, Kt. Glarus, Switzerland (Kalkfabrik Ketstal Ag.) Al'KLAKD, Merrill F. (S) Ohio Uni"ersity, Dept. of Geology Athens, Ohio AULT, Neil N. (Bl) ~orton Co., 1 New Bond SI. Worcester 6, Mass. Al'SKERN, Allan (BJ) Westinghouse Atomic Power Div. Box 1468, Pittsburgh 30. Pa. AUSTENAL, INC. (R. C. Feagin) 224 E. 39th St., Kew York 16, K. Y. ROSTER 3 ACSTERMAK, Stanley B. tB) 7006 Andasol Ave., Van .!Iiuys, Calif. (Atomics International) ACSTIl\, Arthur O. (B) Box 109, Barberton, Ohio (A. O. Austin Co.) IIIN' Charles E. (S) nsolidated Brick Co. orseheads, N. Y. At: TIK, Chester R. (RFI) Oxygen Converter Dept. Kaiser Engineers 1924 Broadway-Kaiser Bldg. Oakland 12, Calif. AVSTIK, Garth F. Gen. Del., Alfred, K. Y. ACSTIK, James Bliss (BF) C nited 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, K. Y. AVRIL, Jack J. 8804 Frances Folson Rd., S.\\. Tacoma 99, ""'ash. AYDELOTT, Elliott C. (SI) Waverly, Pa. (International Salt Co.) AZEVEDO, Marcello R. V. de (I) Caixa Postal 2818, Sao Paulo, Brazil (Ceramica Sanitaria Porcelite S/A) B BAAB, Kenneth A. (RI) 628 Sixth Ave., Bethlehem, Pa. (Bethlehem Steel Co.) BAARSOK, Robert E. (M) Armour Chemical Div. Flotation Research Section 1355 W. 31st St., Chicago 9, Ill. ' Paul D. 8 Pennington St., Elizabeth 2, No J. CK, Clarence L. (GF) 718 Potomac, Toledo 7, Ohio (Owen-Illinois) BABCOCK, M. G. (G) 618 Kenilworth Dr., Pittsburgh 34, Pa. (Pittsburgh Plate Glass Co.) BABCOCK, Paul R. (WI) Frenchtown Porcelain Co. Frenchtown, N. ]. BABCOCK &: WILCOX CO. O. E. Brinckerhoff) 161 E. 42nd St., New York 17, N. Y. BACH, Carl H. (S) Tuthill Bldg. Material Co. 545 E. 103rd St., Chicago 28, Ill. BACH, William E., Jr. (M) 7712 Fontana Prairie Village IS, Kans. (Aluminum Co. of America) BACHER, Holland R. (W) Rock Tavern, N. Y. (White Cloud Farms, Inc.) BACHMAK, Charles D. (G) 200 Shelburne Rd., R. R. 2 Millville, N. J. (Armstrong Cork Co.) BACHMAN, George S. (G) 151 W. Washington St., Shelbyville, Ind. (Pittsburgh Plate Glass Co.) BACHMAN, James R. (R) United States Steel Corp. Applied Research Lab. Monroeville, Pa. BACHMAN, Wheeler Carr (W) R.R. 5, Grafton, W. Va. (carr China Co.) N, Frank R. (GF) 53 Darlington Rd., Toledo 6, Ohio (Owens-Illinois) BACON, James F. (G) 130 Pritchard Ave., Corning, N. Y. (Corning Glass Works) VOL. 35, No. 10 (1956) BADGER, Alfred E. (GF) Libbey-Owens-Ford Glass Co. , 1701 E. Broadway, Toledo 5, Ohio BAER, G. M. tR) R. C. Remmey Son Co. Hedley St. & Dela"ware River Philadelphia 37, Pa. BAGBY, Richard A. (BJ) 15 Allerton Rd., Dayton 5, Obio (Wright Air Development Center) BAGLEY. Korman H. (W) 206 Central Ave., Caldwell, K. J. (Bell TelephOl1e' Laboratories, Inc.) BAILEY, Floyd lEI) 840 S. Sixth Ave., Kankakee, Ill. (A. O. Smith Corp.) BAILEY, Henr)' R, Jr. (M) Golding-Keene Co. 226 Main St., Keene, l\. 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 BAIN, Robert M. (X) Eastern Montana College of Education Billings, Mont. BAIR, George ]. (GFI) Technical Products Division Corning Glass Works, Corning, N. Y. BAKER, Arvid H. (G) 300 Catlin Ave., Port Allegany, Pa. (Pittsburgh Corning 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. (R) 514 W. High St., Womelsdorf. Pa. (North American Refractories Co.) BAKER, Houston R (G) Sharp-Schurtz Co. 301 Lincoln Ave., Lancaster, Ohio BAKER, Robert L. (G) 46 Highland Ave., Wellsville, N. Y. (Air Preheater Corp.) BAKER, Theodore C. (G) RR. 1, Wayne, Ohio (Owens-Illinois) 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, K. Y. BALINA, Marcelo O. C.A.P.E.A., Lanus-KM 7 C. Gral., Belgrano Buenos Aires, Argentina BALINKIN, Isay (W) University of Cincinnati Cincinnati 21, Ohio BALINT, Louis J. (B) 14185 Story Rd., San Jose 27, Calif. (Kaiser Aluminum & Chemical Corp.) BALL, Albert L. (R) Bay State Abrasive Products Co. Westboro, Mass. BALL BROTHERS CO., INC. Muncie, Ind. BANERJEE, A. Behar Firebricks & Potteries Ltd. P. O. Mugma, Dist. Manbhum, India BAQCE, Harold W. (GI) 1511 Mohican Dr., Pittsburgh 28, Pa (Corhart Refractories Co.) BARBA, Charles E., Jr. (M) Creek Rd., R. R. I, Doylestown, Pa. (Sales Engineer) BARBER, Fred O. (M) 788 Evening St., Worthington, Ohio (Harrop Ceramic Service Co.) BARBER, Stephen W. (G) Owens- Illinois 1700 N. Westwood Ave., Toledo I, Obi., BARBOUR, David J. (WF) 345 E. Highland Dr., Zanesville, Ohiu BARBRE, Norris H. (S) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. BARDSLEY, James J. 404 Spruce St., Appalachia, Va. BARIUM REDUCTION CORP. (K. O. Priddy) South Charleston 3, W. Va. BARKER, Rolland C. (G) Glass Mfg. Dept., Lamp Div. General Electric Co., Nela Park Cleveland 12, Ohio BARLETT, Helen B. (BF) A C Spark Plug Div., General Motors Corp., Flint 2, Mich. BARK A, Gordon L. R. R. 7, Box 575, Tacoma, Wash. BARKES, Harry H. (BI) Wah Chang Smelting & Refining Corp. Herbhill Rd., Glen Cove, K. Y. BARKES, Lehman W. 434 S. Second St., Smithfield, K. C. BARNES, Wilson R. (R) Carhart Refractories Co. 16th & Lee Sts., Louisville 10, Ky. BARNET, Joaquin Ceramicas Kli-per Apartado 1243, Havana, Cuba BARNEY, Ronald N. (BJ) 5487 Cobb Dr., Dayton 3, Ohio (Wright Air Development Center) BAROK, Jean Laboratoire de Controle des Produits Refractaires 15, Place Carnot Nancy (Meurthe et Moselle) France BARR, Harold N. (B) Glenn L. Martin Co. Nuclear Eng. Div. #710 Baltimore 3, Md. BARR, Harry (M) Consolidated Feldspar Dept. International Minerals & Chemical Corp. Box 1843. Trenton 7, N. J. BARR, Robert A. (M) 867 River Rd., Fair Haven, N. J. (Carborundum Co.) BARR, Seymour J. (S) Shenandoah Brick & Tile Corp. Box 32, Winchester, Va. BARRETT, E. L. (R) Chas. Taylor Sons Co. South Shore, Ky. BARRETT, Harvey N., Jr. (R) 2233 St. James Parkway Cleveland Heights, Ohio (Basic, Inc.) BARRETT, Maurice (Life) 8 Oxcliffe Rd. Morecambe and Heysham, England BARRETT, Wa)'ne E. (S) R R I, West Des Moines, Iowa (Oskaloosa Clay Products Co.) BARRINGER, Lawrence E. (Honorary, WFI) 23 Front St., Schenectady 5, K. Y. (General Electric Co.) , BARROWS PORCELAIN ENAMEL CORP. (Woodrow Carpenter) Langdon Rd. & Penn R. R Cincinnati 13, Ohio ROSTER 5 ' BARTA, R. Czechoslovak Ceramic and Glass Society Tecbnicka ul.c.5. Praha XIX, Czechoslovakia BARTHOLOMEW, George A. (5) l'nited States Steel Corp. PPlied Research Lah. onroeville, Pa. HOLOMEW, George L. Box 1009, Alfred, X. Y. BARTLETT-COLLINS 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. BARTOK, 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 BASIC, INC. (H. C. Lee) 845 Hanna Bldg., Cleveland IS, Ohio BASLER, Wayne G. (X]) 1504 K. Belt West, Belleville. Ill. (Aluminum Co. of America) 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. (5) Acme Brick Co., Box 425 Fort Worth 1, Texas BASSETT, Robert (5) entral Commercial Co. arlington, Beaver County, Pa. EMAN, L. A. (E) Eljer Co., Enamel-Ware Div. Salem, Ohio BATES, A. Allan (B) Portland Cement Assn. 33 W. Grand Ave., Chicago 10, Ill. BATES, Charles E. (5) 128 Walnut St., Brookville, Pa. (Hanley Co.) BATES, Edgar A. (B) 4506 Toni Lane, San Diego 15, Calif. (Convair) BATES, Frank O. (W) Solar Mfg. Corp., E. 46th St. at Seville, Los Angeles 58, Calif. 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.) BATESOK, Sydney (G) Duplate Canada Ltd. Oshawa, Ont., Canada BATRl'K, Stanley J., Jr. (E) Kew Jersey Zinc Co. 160 Front St., Kew York 38, X. Y. BATTISTA, George Box 747, Alfred, N. Y. BAUER, Richard M. (M) 728 St. Louis Ave., Zanesville, Ohio (Mosaic Tile Co.) R, Wolf "G. (5) 622 Seaview Ave., Seattle 7, Wash. eConsulting Engineer) BAl-LEKE, Maynard P. 6910 Meadow Brook Blvd. Minneapolis 26, Minn. VOL. 35, No. 10 (1956) BAUM, Frederick J., Jr. (B) E. I. du Pont de Nemours & Co., Inc. Experimental Station, Chemical Dept. Wilmington, Del. BAUMANK, Henry N., Jr. (BFI) 1275 Wyoming A~e. 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 & LOMB OPTICAL CO. (Murray Scott) Rochester 2, N. Y. BAXTER, Allen J. (GJ) Bailey Creek Rd., R. R. 3 Corning, N. Y. (Corning Glass Works) BAYLISS, John M. (R) 629 Frederick St:, Lancaster, Ohio (Mullite Refractories Co.) BAY STATE ABRASIVE PRODUCTS CO. (0. S. Buckner) Westboro, Mass. BEAL, D. S. (E) 15 Oak Dr., Poland, Ohio (Youngstown Sheet & Tube Co.) BEALS, M. Douglas (BI) Research Lab., Titanium Division National Lead Co., South Amboy, N. J. BEALS, Robert J. (WI) 109 Ceramics Bldg. University of Illinois, Urbana, Ill. BEAM, James R. (WFI) 300 Ruth Ave., Mansfield, Ohio (Ceramic Engineering Service) BEARD, Ointon L. (WI) Globe-Union, Inc.. 900 E. Keefe Ave. Milwaukee 12, Wisc. BEARDSLEY, Clinton J. (W) 666 E. Findlay St., Carey. Ohio ePorcelain Products. Inc.) BEASLEY, Dennis R. (G) 659 McCullogh St., Morgantown, W. Va. (Struc-Tite Fibers, Inc.) BEASLEY, Robert M. (G) Corning Glass Works, Corning, N. Y. BEATHARD, Robert K. (W) General Tile Corp., Box 38 EI Sei'Undo, Calif. BEATON, Orville (W) Gem Clay Forming Co., Sebring, Ohio BEAVER, Wallace W. (M) 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. BEBBINGTON, Philip J. (E) 2 Barker Lane, Saxonville, Mass. (Arthur D. Little, Inc.) BECHTNER, Paul (M) American Colloid Co. Merchandise Mart Plaza, Room 813 Chicago 54, Ill. BECK, Elmer W. (M) Ceramic Supply Co., Crooksville, Ohio BECK. J. Howard (M) BTU Engineering Co. 440 Somerville Ave. Somerville 43, Mass. BECK, Norman R. (G) Carr-Lowrey Glass Co. Baltimore 3, Md. BECK, Warren R. (B) Minnesota Mining & Mfg. Co. 900 Fauquier Ave. St. Paul 6, Minn. BECKEMEYER, Harry J. (W) Universal-Rundle Corp. W. Keith McAfee Lab., Box 1268 Mahoningtown, Pa. BECKER, Bruce N. (G) 602 N. Marshall St., Lancaster, Pa. (Radio Corp. of America) BECKER, Martin G. (5) Brookhaven Pressed Brick & Mfg. Co. Box 542, Brookhaven, Miss. BECKER, Walter D. (5) Brookhaven Pressed Brick & Mfg. Co. Box 542, Brookhaven, Miss. 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, Henry P. (B) Philco Tube Laboratory, Church Rd. Lansdale, Pa. BEERS, Roland F. (B) Box 1019, Troy, N. Y. (Roland F. Beers, Inc.) BEETON, Earl E. (GI) 1604 Lincoln St., Bethlehem, Pa. (Western Electric Co.) BEGGEROW, Charles W. 309 Osceola Ave., Lake Wales, Fla. BEGIEN, Virginia American Ceramic Society 4055 N. High St. Columbus 14, Ohio BEHAR FIREBRICKS & POTTERIES LTD. (A. Banerjee) P. O. Mugma, Dist. Manbhum, India BEHREND, Oswald (R) 2557 Robinwood, Toledo, Ohio ( Owens- Illinois) BEHRINGER, H. L. (G) Tygart Valley Glass Co. Washington, Pa. BEINLICH, Alfred W. (R) 3404 19th Ave., Sheffield, Ala. (Tennessee Valley Authority) BEINLICH, Justus J. (R) United States Steel Corp., Room 2421 525 William Penn Place Pittsburgh 30, Pa. BELD, George H. (W) Kelvinator Div. American Motors Corp. 1600 Clyde Park Ave., S. W. Grand Rapids 9, Mich. BELKOWSKI, Arthur V. (G) 161 Whittenton St., Taunton, Mass. (General Electric Co.) BELL, Clarence D. Box 3438, Clemson College Station Clemson, S. C. BELL, Kenneth E. (5) 349 Lacasse Ave., Apt. 6 Eastview, Ont., Canada (Ottawa Brick & Terra Cotta Co., Ltd.) BELL, Richard (M) Bell Clay Co., Gleason, Tenn. BELLAMY, Harry T. (R) Armour Research Foundation 10 W. 35th St., Chicago 16, Ill. BELLAMY, L. B. (R) Abrasive & Metal Products Co. 729 Meldrum Ave., Detroit 7, Mich. BELLIDO, Bartolome Darnis Director Gerente de ME.R.S.A. Lugones (Oviedo), Spain BELOW, Henry (W) Pennsbury Pottery, Morrisville, Pa. BENBENEK, Raymond (51) Canada Brick, Ltd. Streetsville, Ont., Canada BEl'mER, Bob G. (GI) CBS-Hytron, Kent & Warren Sts. Newburyport, Mass. BENDER, John H. (R) Denver Fir~ Clay Co., Box 5510 Denver 17, Colo. BENEDICT, Virginia American Ceramic Society 4055 N. High St., Columbus 14, Ohio BENJAMIN ELECTRIC MFG. CO. (Hoyt P. Steele) Des Plaines, Ill. BENNER, Stanley G. (E) Johns-Manville Research Center Manville, N. J. ROSTER 7 .... .. j I I~ I 1, 1- I, BEKNER, W. ]. (R) 730 Romona Rd., Wilmette, Ill. (Pyro Refractories Co.) BENNETT, A. H. (G) American Optical Co., Research Center Southbridge, Mass. I IlI;ETT, A. Lee (SFI) o Las Flores Dr., Glendale, Calif. acific Clay Products) B ETT, Dwight G. (EFI) 204 Ceramics Bldg. University of Illinois, Urbana, Ill. BEXKETT, Edward (W) B. G. Corp. 321 Broad Ave., Ridgefield, N. J. BENKETT, Frederick R. (R) Box 325, Hartsville, S. C. (Carolina Refractories Co.) BEK1\ETT, Harry J. (W) Crooksville China Co. Crooksville, Ohio BENNETT, Myles P. (BI, 6552 N. Oldham Lane San Gabriel, Calif. (Gladding, McBean & Co.) BENNETT. VI'alter R. (5) Acme Brick Co., Millsap, Texas BENSOK, Edward (R) Kew Departure DiY. General Motors Corp.. Bristol, Conn. BE1\TZ, George B. (W) 1\ational Plumbing Potter}", Inc. 305 N. Front St., Columbus 15, Ohio BENZEL, James F. 840 Techwood Dr., N. W., Atlanta, Ga. BERG, Morris (B) 315 Pleasure Rd., Lancaster, Pa. (Radio Corp. of America) BERGER, Bernard M. (E) Dept. 817, Sears, Roebuck & Co. 925 S. Homan Ave., Chicago 7, Ill. BERGER, Donald Francis (G) 41 W. South St., Painesville, Ohio (Diamond Alkali Co.) RON, Clifton G. (EI) _ irlpoolSeeger Corp., 300 Broad St. Joseph, Mich. B -IVERSEN, Wiggo A/S Egersunds Fayancefabriks Co. Egersund, Norway BERKELHAMER, Louis H. (El) 3621 W. Howard St., Skokie, Ill. (Ohmite Mfg. Co.) BERKARDINI, Guy F. (W) Box 19, R. R. 1, Latrobe, Pa. (Stupakoff Div.. Carborundum Co.) BERNS, Milton H. (M) 249 Charlotte Ave., Hamburg, K. Y. (Electro Refractories & Abrasives Corp.) BERNSTEIN, Leonard (B) Kwikset Locks, Inc. 516 E. Santa Ana St., Anaheim, Calif. BERNSTORF, Robert B. (D) Box 679, East Liverpool, Ohio (Commercial Decal, Inc.) BERRI 1\, Lloyd cia Jack Cole, 5731 % Carlton Way Hollywood 28, Calif. BERRY, Thomas F. (B) 527 34th St., Union City, K. J. (Radio Corp. of America) BERTHA, Edward J. 3310 1\. Cah'ert St., Baltimore 18. Md. BESSE, Richard W. (W) Onondaga Pottery' Co. J856-58 W. Fayette St. Syracuse 4, 1\. Y. BESSEY, George E. Chalk Lime & Allied Ind. Res. Assn. 30 Church St. f ;lwyn, Hens. England Edison F. (G) bey-Owens-Ford Glass Co. . 701 E. Broadway, Toledo 5, Ohio BEST, WILLIAM S. (5) -.< R.R. J, Kew Bethlehem, Pa. ,:~,::.:(New Bethlehem Tile Co.) .y.~~: 35, No. 10 (1956) BETHLEHEM STEEL CO. (Hobart M. Kraner) Bethlehem, Pa. BETTISON, L. S. (5) Chambers Brothers Co. 52nd & Media St., fhiladelphia 31, Pa. BETZ, GEORGE C (MFI) Metal & Thermit Corp. 100 Park Ave., Kew York 17, K. Y. BETZ, Wilbert A. (W) U. S. Potters Assn. 104 E. Fourth St., East Liverpool, Ohio BEVERIDGE, John f. (W) 10 Stanford St.', Halifax, Kava Scotia (Royal Canadian Ka\'y) BEVIS, Ralph E. (El) International Division, Ferro Corp. 4150 E. 56th St., Cleveland 5, Ohio BEYER, George I. (E) Hall Ave., St. Marys, Pa. (Pure Carbon Co.) BEZBORODKO, David (G) Mechanical Mirror Works, Inc. 661-663 Edgecombe Ave. Kew York 32, K. Y. B. G. CORP. (Edward Bennett) 321 Broad Ave., Ridgefield, N. J. BICKERSTAFF CLAY PRODUCTS CO. (L. N. Bickerstaff) Box 11 78 Columbus, Ga. BICKERSTAFF, L. N. (5) Bickerstaff Clay Products Co. Box 1178, Columbus, Ga. BICKFORD, Fred A. (G) Box 29, R.R. 2, Campbell, N. Y. (Coming Glass Works) BIDDLE, George J. (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) Metallurgy Research Branch Aeronautical Research Lab. (WCRRL) WADC, Wright-Patterson AFB, Ohio BILLHEIMER, John E. (WJ) Highwood, Easton Ave. New Brunswick, N. J. (Mitchell-Bissell Co.) BILLIA!II, Carroll J. (G) Owens-Illinois General Research Div. 1700 N. Westwood Ave.. Toledo I, Ohio BILLINGS, David D. (G) Glass Containers Corp. 3601 Santa Fe Ave. Los Angeles 58, Calif. BIOKDI, Joe 2310 E. 52nd St., Los Angeles 58, Calif. BIRCH, Raymond E. (RFI) 'Harbison-Walker Refractories Co. 1800 Farmers Bank Bldg. 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 7, Ohio BISHOP, George J., III (5) Guignard Brick Works, Box 480 Columbia, S. C. BISHOP, Harold E. (G) Owens-Coming Fiberglas Corp. Anderson, S. C. ~lSHOP, Laverne R. (R) Aluminum Co. of America 3300 Missouri Ave., East St. Louis, Ill. BISSELL. Don W .. Jr. (RI) 703 Green St., Rockton, Ill. (Ipsen Ceramics Inc.) BISSET. Ronald W. (R) Aluminium Limited Sales, Inc. 630 Fifth Ave., New York 20, N. Y. BIXBY, Henry D. (S) Central Commercial Co. Darlington, Beaver County, Pa. BLACK, H. R. (G) Kimble Glass Co. 1700 N. Westwood Ave., Toledo, Ohio BLACKBURN, A. Reif (M!) 204 N. State St., Westerville, Ohio (Ram, Inc.) BLACKBl'RK, Douglas H. (G) 3921 Langley Ct. Washington 16, D. C. (N ational Bureau of Standards) BLACKWOOD, James M. (R!) 124 First St., Niagara Falls, N. Y. (Carborundum Co.) BLAES, Henry M., II (B) 339 N. Hoover Ave., Whittier, Calif. (North American Aviation) BLAHA, Emil (R) 415 Ashmead Rd., Cheltenham, Pa. (Selas Corp. of America) BLAIR, Gerald E. (G) 5667 Palmyra Rd., Pittsford. N. Y. (Bausch & Lomb Optical Co.) BLAIR, Marion W. (SF) 2131 S. Center St., Terre Haute, Ind. (Manufacturers Equipment Co.) BLAISOK, Pierre Societe des Electrodes & Refractaires "Savoie" 16, Rue de Monceau, Paris 8', France BLAKE, William V. (RJ) Macklin Abrasive Co., Jackson, Mich. BLAKELY, Alexander M. (B) Precision Grinding \\'heel Co.. Inc. 8301 Torresdale Ave. Philadelphia 36. Pa. BLANCHARD, M. Kenneth (E) A. O. Smith Corp., 3533 N. 27th St. Milwaukee I, Wise. BLAU, Henry H. (GFJ) Federal Glass Co., 515 E. Innis Ave. Columbus 7, Ohio BLAZOVIC. Phil, Jr. (M) 3286 VI' estern Ave. Highland Park, JII. (Consolidated Feldspar Dept. International Minerals & Chern. Corp.) BLECHEISE1\, J. (E) Rosiclare Lead & Fluorspar Mining Co. Rosiclare. JII. BLENKO, William Henry, Jr. (G) 1412 Main St., Milton, W. Va. (Blenko Glass Co., Inc.) BLESSING, Robert Lee (SI) 1714 Crestwood Dr. Mineral Wells, Texas (Texas Vitrified Pipe Co.) BLISS, L. G. (M) Foote Mineral Co., 18 W. Chelten Ave. Philadelphia 44, Pa. BLISS, Roderick T. (5) 35 E. Center St., Nesquehoning, Pa. (Deister Concentrator Co.) BLITON, Jerald Box 826, Alfred, K. Y. BLOCKSIDGE, Arthur B.. Jr. (R) Jones & Laughlin Steel Corp. 40 Longworth St., Pitt~hurgh 7. Pa. BLODGETT, William E. (W) II Lakeview Terrace, Woburn. Mass. (R. Guastavino Co.) BLOHM, Richard E. (E) 1657 E. Waverly Way Baltimore 12, Md. (Rbeem Manufacturing Co.) BLOME, James C. 1108 S. First, Champaign, 111. BLOOM, Ray A. (R) Technical Library Timken Roller Bearing Co. Canton 6, Ohio BLOOR, C. A. (W) Universal Clay Products Co. Sandusky, Ohio BLOORE, Robert Boulton Swinnertons, Ltd. Hanley, Stoke-on-Trent, Enrland ROSTER 9 .\ I, r I I j.'~~ ~ ~.~.~ BLUE RIDGE GLASS CORP. U. H. Lewis) Kingsport, Tenn. BLt:M, Seymour (WI) Raytheon Manufacturing Co. Research Div. Waltham, Mass. _ E, Arthur J. (51) urray Tile Co., Cloverport, Ky. 'MER, Fridolin (D) Lane Gate Rd. Cold Spring, Putnam Co.. ~. 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. BOBROW SKY, A. R. (R) 2012 Pontiac Rd., R. R. 2 Ann Arbor, Mich. (Ford Motor Co.) BOEKER, V. W. (GI) Owens-Corning Fiberglas Corp. 598 Madison Ave., ~ew Yvrk 22, N. Y. BOGATAY, Paul (D) 45 W. Weisheimer Rd. COlumbus 14, Ohio (Ohio State tlniversity) BOG~AR, Edwin]. (RI) Bognar & Co.. Inc. 1711 First Xational Bank Bldg. Pittsburgh 22, Pa. BOHK, Edward L. (R) Mullite Refractories Co., 10 Canal St. Shelton, Conn. BOLANOVICH, Melvin (5) 3118 Palmer Sq., Chicago 47, Ill. (Illinois Brick Co.) BOLE, George A. (XF) Engineering Experiment Station Ohio State University Iumbus 10, Ohio EK, W.]. Igemene Vereniging "001' de Kederlandse, Aardewerk en Glasindustrie, Haagweg 139 Rijswijk, 'K etherlands BOLLINGER, Robert H. (MI) Georgia Kaolin Co., 433 N. Broad St. Elizabeth 3, N. J. BOLOK, David G. (RI) 5525 E. 8Ist., Indianapolis, Ind. (Sales Representath'e) BOLTON, Harry L. (R) Philadelphia Quartz Co. 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. 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 Mulberry Rd., S. E. Canton 2, Ohio BONSTEIK, Thomas E. (W) Paper Makers Importing Co., Inc. 44 S. Second St., Easton, Pa. BOOTH, John F. Hazlehead Hall, Penistolle, Nr. Sheffidd Sheffield, York, England (Hepworth Iron Co., Ltd.) BOOZE,M. C. (RFI) 4725 Walton Creek Rd . 'ncinnati'27, Ohio aries Taylor Sons Co.) P, Harold F. (GF) 67 Gorton St., Corning. N. Y. (Corning Glass Works) BOROM, Marcus P. Box 128. Waynesboro, Ga. .VOL, 35, No. 10 (1956) BOROS. John (W) Pacific Tile & Porcelain Co. 7716 E. Oli"e St., Paramount, Calif. BOSCH, F. M. Lab. Anorganisc!l-Tech. & Electro chemie 22 Plateaustraat, Ghent, Belgium BOSLER, Krell (E) 56 Matti Rd., Corner Lakeview Dr. Gardner, Mass. (Florence Stove Co.) BOTFIELD, Geotge 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 P}'rex St., Corning, N. Y. (Corning Glass Works) BOUDER, Norman M" Jr. (G) 4820 Roland Ave., Baltimore 10, Md. (Pemco Corp.) BOL7RGERIE, R. D. (W) Radio Materials Corp. 3325 N. California Ave., Chicago 18, Ill. BO\'EE, Benedict A. (M) 1837 Winter Rd. Grand Island. RF.D., K. Y. (Harper Electric Furnace Corp.) BO\\DEX. James J. (B) Bowflux Co., Box 65. Cortland, Ohin BOWEN ENGINEERING. INC. (William A. Bowen) Korth Branch, K. J. BOWEK, William A. (M) Bowen Engineering. Inc. Xorth Branch, K. J. BOWER, David K. (G) 3932 Rohr Dr., Toledo 13, Ohio (Owens-Illinois) BOWERS, Donald J. (B) 950 Highland Dr., Columbus 14, Ohio (Battelle Memorial Institute) BOWES, Urban E. (GF) Owens-Illinois, Box 1035-1036 Toledo 1, Ohio BOWMAN, Donald C. (E) 579 S. Craig Pl.. Lombard. Ill. (Chicago Vitreous Corp.) BOWMAK, D. Scott (M) Carborundum Co.. Globar Diy. Kiagara Falls. N. Y. BOWMAN, Eugene D. (G) 824 Oakwood Ave., Columbus 6, Ohio (Kimble Glass Co.) BOWMAN, John G. (W) 341 S. Juliana St. Bedford, Pa. BOWMAN, Robert R. (R) Harbison-Walker Refractories Co. 609 Jackson Bldg.. Buffalo 2. X. Y. BOWNE, Martin S. (SI) Let: 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) S. G. Frantz Co., Inc. Box 1138, Trenton 6, N. J. BOYD, John E. (MI) Box 2414, Greensboro, K. C. (Carolina Pyrophyllite Co.) BOYD, L. R., Jr. (S) Teague Brick & Tile Co., Box 329 Teague, Texas BOYD, Robert C. (EFI) American Standard, 1541 S. Seventh St. Louisville 8, Ky. BOYLES, John P. (W) Edwin M. Knowles China Co. Newell, W. Va. BOYNTOX, Claudia G. (D) 1012 K. Franklin St. Manchester, Iowa (Industrial Publications, Inc.) BOYNTON, Robert S. (X) National Lime Assn. 925 15th St. K W. Washington 5, D. C. BOZZO. J. G. (G) Pierce Glass Co. Railroad Ave. Port Allegany, Pa. BRACKBILL, Charles E. (R) 1650 Liggett Ct., St. Louis 19, Mo. (Laclede-Christy Co., Di\'. H. K. Porter Co.) BRADEK, Roger W. (M) Hammond Lead Products 526 Calumet Bldg., Hammond, Ind. BRADD';, William E. Ferro Corp., Far East Diy. Box 6130, Kowloon, Hong Kong BRADFORD, Virgil E. ("-j) 574 E. Gates St. Columbus 6, Ohio BRA.DLEY, Alan L. Cullinan Refractories Ltd. P. O. Olifantsfontein Transyaal. South Africa BRADLEY, Charles A., Jr. (G) Pinewood Acres, R. R. 3, Corning, N. Y. (Corning Glass Works) BRADLEY, Edward L. Georgia Institute of Technology Box 4985, Atlanta, Ga. BRADLEY, Fennimore N. (I) 940 Oregon St.. Palo Alto. Calif. BR!\DLEY, R S. IRFI) 4 Park Circle, Mexico, Mo. (A. P. Green Fire Brick Co.) BRADSTREET, Samuel W. (E) Armour Research Foundation lOW. 35th St., Chicago 16, 111. BRADWELL, Cyril (RI) Parkhurst Apts. 7B Barbara & Marion Sts., Bethlehem, Pa. (Bethlehem Steel Co.) BRADY, Earl (5) Box 522, Waskom, Texas (Acme Brick Co.) BRADY, John G. (B) Dept. of Mines & Technical Suryeys Ceramic Section, 40 Lydia St. Ottawa, Ont., Canada BR..\DY, Justin M. (W) 1320 K. Delaware, Apt. 604 Indianapolis, Ind. (American Art Clay Co.) BRADY, T. E. (R) Surface Combustion Corp. 2375 DOrT St., Toledo 1. Ohio BRAIK, Douglas G. (W) 1960 Jane St. Toronto 15, Ont.. Canada (American Standard Products) BRAMLETT, William P., Jr. (GI) Cumberland Rd., RR. 2, Millville, N. J. (Armstrong Cork Co.) BRAKDT, Kristian H. (B) 1076 Karesh Aye., Pomona. Calif. (Conyair) BRAKDT, Martha W. (G) National Glass Budget 800 Grogan Bldg., 510 Wood St. Pittsburgh 22, Pa. BRAXDT, Xeill M. (G) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. BRAKDT. William O. (WFn 2951 Delor Dr., Los Angeles 32. Calif. BRAXT, Arthur M. (R) 156 Hampden Park Dr.. Tiffin, Ohio (Basic. Inc.) BRAKT, David G. (Rn 39 Valley View, Tiffin, Ohio (Basic, Inc.) BRASHARES, C. A. (R) Harbison-Walker Refractories Co. 1800 Farmers Bank Bldg. Pittsburgh 22, Pa. ROSTER 11 1 BRASSFIELD, Henry C. (1:1) KR. I, Stevens Rd., Foster, Ohio (General Electric Co.) BRAUCKMAN, Alvin J. 3 Kern Ramble, Austin, Texas 'N, Gar)' A. x 827, Alfred, X. Y. , Kenneth J. (W) .enczel Tile Co. Klag & Enterprise AYe. Trenton, N. J. BRAYKOVICH, A. F. (W) Humphryes Manufacturing Co. 201 E. Fifth St., Mansfield, Ohio Brazilian Ceramic Society-see Associacao Brasileira de Cera",;ca BREEDLOVE, James G. (BI) 703 James Blyd. Signal Mountain, Tenn. (American Laya Corp.) BREENE, George A. (G) Industrial Colloids Co. Emlenton, Pa. BREEZE, Lewis K. (E) 501 E. 288th St., Willowick, Ohio (Glascote Products, Inc.) BREITWIESER, Robert H. (R) 1616 W. 27th, Pueblo, Colo. (Standard Fire Brick Co.) BREKKE, Trygve Box 266, Stavanger, Norway (Stavangerftint) BREMNER, Robert P. (G) T. L. Smith Co. 2835 N. 32nd St. Milwaukee 10, 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. 08 14th Ave., S., Seattle 8, Wash. , L. A. (S) 8 Theodan Dr., Pittsburgh 16, Pa. ATCO Corp.) BREWER, Bob (S) 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 (\\') 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 (W) Paper Makers Importing Co., Inc. 44 S. Second St., Easton, Pa. BRICKHOeSE, Robert E. (R) 206 Fairlawn Blvd., Zelienople, Pa. (Johus-Mam'iI!e) BRIGGS MANUFACTURING CO. (A. J. Raible) 415 W. Seymour .'he. Cincinnati 16. Ohio BRIGHAM. Ralph V.. Jr. (WI) Beef Rd .. R. R. 3, Syracuse 7. X. Y. (Onondaga Pottery Co.) 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 Universit) University Park, Pa. BRINKMAK, Robert ]. 3209 Wa)'ne Ave., Da)ton 10, Ohio BRISBANE, S. M. t tRiVerdaJe .Rd., Hawthorn E2 toria, A.ustralia mmodWealth Scientific & Industrial esearch Organization) BRISTOW, Robert H (WI) 57 Sequoia Rd., R. R 1 Ballston Lake, N. Y. (General Electric Co.) VOL. 35, No. 10 (1956) BRITCHER, Gordon (W) , 306 Berkeley Dr., Syracuse 10, X. Y. (Syracuse Pottery, Inc.) BRITISH CERAMIC SOCIETY Federation House- Stoke-on-Trent, England BRITTAIN, Clifford G. (RJ) Autumn St., \\'orcester, Mass. (X orton Co.) BRITTOX, Marvin G. (B) 121 Hornby Dr.. Painted Post, X. Y. (Corning Glass 'Works) BROCKWAY GLASS CO., INC. (F. B. Hess) Brockway, Pa. BROOKE, Stanley Oughtibridge Silica Firebrick Co., Ltd. Oughtibridge, Sheffield, England BROOKOVER, George B. (G) 2015 Evansdale Ave., Toledo 7, Ohio (Kimble Glass Co.) 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. (5) Aircraft-Marine Products, Inc. 2100 Pall ton St., Harrisburg, Pa. BROWER, William 5., Jr. (WJ) Xational Bureau of Standards Dh. 9.1, Washington 25, D. C. BROWK, Arthur E. 605 Greenway Dr., Florence, S. C. BROW?\', C. Justus, Jr. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway. Toledo 5, Ohio BROW?\'. Clarence B., Jr. (M) Hardinge Co., Inc., York, Pa. BROWK, Colin C. (G) 21 Medbu/")' Ave., Cuba, N. Y. (Cuba Cheese & Trading Co.) BROWN, Donald Nicol IG) 4 E. Third St. Corning, N. Y. (Corninsr Glass Wo~k.) BROWN, Donovan P. (RI) 2704 Eldon Ave., Drexel Hill, Pa. (North American Refractories Co.) BROWX. George L. (M) 27 S. VanDien Ave.. Ridgewood. 1\. J. (Lithium Corp. of America, Inc.) BROWN, George Retlhen (M) North Ame~ican Mfl(. Co. 4455 E. 7lst St.. n .."eland 5. Ohio BROWN. John J., Jr. (51) Redford Brick Co., 12th & Maury St. Richmond, Va. BROWN, Joseph A. (5) . Baltimore Brick Co. 3200 E. Madison St., Baltimore 5, Md. BROWK. Lawrence H. (WFI) Box 255, Miami 2, Fla. BROWN, Leslie (W) Lenox. Inc. 50 Meade St.. Trenton 5, K. J. BROWN, Me~edith C. (5) 609 K. Friends Ave. Whittier. Calif. (Consultant) BROWK, Raymond G. (R) Strategic-Udy Processes. Inc. Box 835. Kiagara Falls, K. Y. BROWK. Raymond J. (X) Ceramic Age, Ninth-Chester Bldg. Cleveland 14. Ohio BROWN. Roy W. (G) 3842 Grennoch St., Houston 25. Texas (Carbonmdum Co.) BROWN, Wilbur F. (GF) Libbey-Owens-Ford Glass Co. Rossford. Ohio BROWN, William E. (R) Bnx 217. RR. 1. Norristown, Pa. (E. J. Lavino & Co.) BROWNE, Thomas C. (Rn 2115 Orchard Dr. South Plainfield, N. ]. (Titanium Div.. National Lead Co.) BIW\\'KELL, Wayne E. (51) 126 Hornell St., Hornell, N. Y. (State Universit) of Kew York, College of Ceramics) BROWKEWELL, George E. (R) Diamond Alkali Co. Box 430, PaineS\"iIle, Ohio BRCCHMA?\'K, Helmut (M) Haeger Potteries, Inc., Dundee. Ill. BRUEGGERHOFF, Charles (R) Mexican Zinc Co., 1\. Rosita Coahuila. Mexico BRUHK, Hans W. (R) Corhart Refractories Co., Inc. 1600 W. Lee St., Louisville 10, Ky. BRUNNER, Cedric D. (W) 106 W. Union, Rockton, III. (lpsenlab of Rockford, I.nc.) BRCNO, Lucien V. (5) Guignard Brick Works Columbia, S. C. BRUSH, George D. (51) Harrop Ceramic Service Co. .15 E. Gay St., Room 413 Columbus 15, Ohio BRUSSE, William, Jr. (E) Temco Inc., 4104 Park Ave. Kashville 9, Tenn. BRY ANT, Eugene E. (EF!) Ferro Corp., 4150 E. 56th St. Cleveland 5. Ohio BRYCE, Homer L. (S) Henderson Clay Products, Box 870 Henderson, Texas BCCHAK, Charles R. 840 Techwood Dr., K. W., Atlanta, Ga. BUCHAK, M. A. (RI) A. P. Green Fire Brick Co. Troy, Idaho BCCK, Forrest W., Jr. (E) 1209 Loucks Ave., Scottdale, Pa. l Lithium Corp. of America) BUCK GLASS CO. (Royden A. Blunt) 841 E. Fort Ave., Baltimore 30. Md. BUCK, han E., Jr. (E) 300 Greenwood Ave., R. R 2 Cape May, N. J. (Keasbey Corp.) Bt:CKLES, Paul E. (MI) 860 Brighton Bhd., Zanesville. Ohio (Donald Hagar Ceramic Materials) BUCKLEY, Edward D. (B) Champion Spark Plug Co. 900 t:pton Ave., Toledo I, Ohio BUCKNER, O. S. (GI) Bay State Abrasive Products Co. Westboro, Mass. BUEGE, Robert H. (W) Globe-Union, Inc., 900 E. Keefe Ave. Milwaukee I, Wise. BUEHLER, Bert P. (5) 2439 Torrington Ave., Parma 29, Ohio (Cleveland Builders Supply Co.) BVESSEM, W. R (B) Pennsylvania State Universit) College of Mineral Industries University Park, Pa. BUFFALO POTTERY. INC. (R E. Gould) 25 Hayes PI. Buffalo 10, N. Y. BllGOSH, John (R) E. I. du Pont de Kemours & Co. Grasselli Chemicals Dept. Experimental Sta.. Wilmington. Del. BUILDERS BRICK CO. (R. C. Houlahan) 3800 Kinth Ave .. 5., Seattle 8. Wash. BULKLEY, Ronald (B) Socon)' Mobil Labs., Paulsboro, N. ]. BULLARD, Edward R. (E) B. F. Drakenfeld & Co., Inc. Washington, Pa. BVLLARD, Keith (GJ) 3518 Hungnam PI. Tarawa Terr. 2, K. C. (U. S. Marine Corps) ROSTER 13 'j BCLLOCK, Gordon L'niversit) of Birmingham Dept. of Physical Metallurgy Edgbaston, Birmingham 15, England BUNGE, Fred H. (M) M. A. Hanna Co., Research Lab. _ bing, Minn. , Oscar G. (GF) 'ens- Illinois Box 1035-1036, Toledo I, Ohio BURCHENAL, Charles H. (W) Cambridge Tile Mfg. Co., Box 71 Cincinnati 15, Ohio Bl"RCHFIEL, B. M. (RFI) 4458 Rose\\ ood PI., Ri"erside, Calif. (Consulting Engineer) BCRCHFIELD, Paul E. (G) \\'yandotte 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, X. Y. (Corning Glass Works) BCRGESS, Blandford C. (MF) USOM, APO 928, San Francisco, Calif. BURKE, J. E. (B) General Electric Co., Research Lab. Schenectad~', K. Y. BURKE, L. Roger (R) 1203 Peoples Bank Bldg. Pittsburgh 22, Pa. (Chas. Taylor Sons Co.) BURKERT, John G., Jr. 84 Green St., Valley Stream, K. Y. BURKHALTER, Edward (51) 7219 Interlaaken Dr. Tacoma 99, Wash. (Builders Brick Co.) BURKS, Cecil M. (RI) 705 Broadway, Steubenville, Ohio (Weirton Steel Co.) B . Y , Frank N. (W) rsoll-Humphryes Div. g-\\'arner CorP., Mansfield, Ohio BURLEY, Newton Ray (W) 1864 Dresden Rd., Zanesville, Ohio (Burle)' CIa)' Products Co.) BURLINGAME, Howard G. (E) California Metal Enameling Co. 6904 E. Slauson Ave. Los Angeles 22, Calif. BURNAND, Guy M. (Life) Messrs. Johnson, Matthey & Co., Ltd. 78, Hatton Garden London, E. C. 1, England BURKS, Frederick L. (W) 400 Grandview Dr., Highland Village Zanesville, Ohio (Watt Pottery Co.) BURNS, Henry K., Jr. (S) 1620 Waverland Dr., Macon, Ga. (Burns Brick Co.) BURNS, Joseph A., Jr. (M) Joseph A. Burns & Son 124 Harrison Ave. Avalon, Pittsburgh 2, Pa. BURNS, R. S. (E) Armco Steel Corp., Research Library Middletown, Ohio 3URRISS, William K. (G) Consolidated Feldspa~ Dept. International Minerals & Chemical Corp. 20 K. Wacker Dr., Chicago 6, Ill. BURROUGHS, F. H. (W) Box 1329, Trenton 7, K. J. (Star Porcelain Co.) BURTON, Howard B. (G) e1618 Arlington Ave., St. Paul 17, Minn nnesota Mining & Mfg. Co.) N, W. A. (5) : E. Fourth St., Mt. Pleasant, Texas . (Paris & Mt. Pleasant R. R.) at1R.WINKEL, Lawrence G., Jr. (G) ',:eo: Pennsylvania Glass Sand Corp. (:::- Two Gateway Center, Pittsburgh 22, Pa. VOL. 35, No, 10 (I 956) Bl"SH, Edward A. 200 Washington Ave., Vandergrift, Pa. BCSH, James W. (51) 4550 Delhi Rd., Cincinnati 38, Ohio (Katco Corp.) BCSH, Ralph R. (M) 520 McKinley St., North Canton, Ohio (Bonnot Co.) BUSH, W. G., & CO. (John S. Herbert) 174 Third Ave., N., Nash"iJle 3, Tenn. BCSHONG, R. M. (R) National Carbon Co., Tiffin & Town Sts. Fostoria, Ohio Bl'SSE\" Donald A. (R) Kaiser Aluminum & Chemical Corp. Refractories Plant Moss Landing. Calif. Bl'STEED, Donald J. (RI) 8 Janet Circle, Shrewsbury, Mass. (Bay State Abrasive Products Co.) BUTCHER, L. H., CO. (George J. Middleton) 3628 E. Olympic Bhd. Los Angeles 23, Calif. Bl'TKOVICH, Edward M. (R) 2848 E. 97th St., Chicago Ii, Ill. (Armour Research Foundation) BUTLER, F. W. (W) Akron Porcelain Co., Akron 14, Ohio BUTLER, Thomas J., Jr. (S) Box 279, Austin 62, Texas (Elgin-Butler Brick Co.) Bl'TTERWORTH, William !\:. (G) General Refractories Co. 950 Leader Bldg., Cleveland 14, Ohio BCTTLE, Robert L. (W) 420 W. Long Ave., Du Bois, Pa. (Jeffen Electronics Di,. Speer Carbon Co.) BeTTOK, Daniel D. Box 971, Alfred, N. Y. Bl'TTOK, Dudley (0) Mercedes Ceramic Studios 8 Wallace St. Woodbridge, Ont., Canada BUZARD, Fred T. (M) Bell, Pine & High Sts., Plymouth, Ohic (Fate-Root-Heath Co.) BYRNS, Alva C. (R) Kaiser Aluminum & Chemical Corp. 1924 Broadway, Oakland 12, Calif. C CABAXILLAS, Oscar Gonzalez (S) Puerto Rico Clay Products Corp. Box 4729, San Juan, Puerto Rico CABLE, John A. (W) '1011 22nd St. l'. E., Canton 4, Ohio (United States Ceramic Tile Co.) CABLE, Margaret (DF) 1520 San Miguel Ave. Santa Barbara, Calif. CABLE, Stephen J. (W) 3615 Eaton, N .W., Canton 9, Ohio (l1nited States Ceramic Tile Co.) CABOT, GODFREY L., INC, (Frank E. Dale~') 46 Ba~'ard St. I\'ew Brunswick, 1\'. J. CACCAMISE, Charles T. (B) Electro Metallurgical Co., 137 47th SI Niagara Falls, N. Y. CAHOOI\', John B., Jr. (W) 791 McLeod St.. Livermore, Calif. (Uni\'ersity of California) CAll', Robert W. 603 W. Church St., Champaign, Ill. CAITO, A. M. (RI) Basic, Inc., Maple Grove, Ohio CALA, Charles F. (G) 144 Hoover Rd., Rochester 17, 1\'. Y. (Bausch & Lomb Optical Co.) CALABRESE, Donald W. Box 168. Alfred, N. Y. CALDWELL. Helen (D) Board of Education Administration Bldg., 1429 W. Se\'t"nth Burlington, Iowa C.'\LD\\'ELL, Smiley, Jr. (G) 71i Xewberry Rd., Xash,'ille, Tenn. (Ford Motor Co.) C-\LDWELL, Smiley M., III iIi I\'ewberry Rd. Brook Meade Subdivision Xashville, Tenn. CALDWELL, ""illiam D. (EI) Perfection Industries, Inc. 1135 Ivanhoe Rd., Cleveland 10, Ohio C-\LL.-\H.'\X, H. D. (WFI) l'nited States Ceramic Tile Co. East Sparta, Ohio CALLAHAX, Robert M. (B) 4553 Seville Ave. Los Angeles 58, Calif. (Solar Mfg. Co.) C-\LLl:\.-\K, Edwaru E. lRFI) DeKalb Park, Center Square, Pa. (Alan Wood Steel Co.) CALVA, Roberto (B) 3238 E. Second St .. Wichita 8, Kans. IBoeing Airplane Co.) CUfEROX, David G. 1M) Haller-Inc. 684 Ann Arbor Rd., Ph'mouth, ~{ich. C-\MERO!\:, Robert A. (GI' Corning Glass Works, Corning, l'. Y. CAMPBELL, C V. (M!) 444 Florida Ave., Chester, \\'. Va. (FerrQ Corp.) CAMPBELL, Edward S. (G) Northwestern Glass Co. 5801 E. Marginal Way, Seattle 4, Wash CAMPBELL, Frank, Jr. 3711 15th K.E., Seattle 5, \\'ash. CAMPBELL, G. Donald (G) 621 Shelby' St., Shelbyville, Ind. (Pittsburgh Plate Glass Co.) CAMPBELL, Ian (B) California Institute of Technology Diy. of Geological Sciences 1201 E. California St. Pasadena 4, Calif. CAMPBELL, J. Douglas (W) Lithium Corp. of America, Inc. 540 Lineoln Bldg., 60 E. 42nd St. Xew York Ii, 1\'. Y. C.'\MPBELL, Robert J., Jr. (B) l'niversity of Washington 324 Roberts Hall. Seattle 5. Wash. CAMPBELL, Robert M. (WFI) 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.) CAM POS, F. Torres Fabrica Nacional de Vidrio, C. A. Box 1049, Caracas, Venezuela CANADIAN CERAMIC SOCIETY (Miss L. C. Keith), 49 Turner Rd. Toronto 10, Ont., Canada C-\XFIELD, J. J. (EF) 2909 Orlando Dr., Middletown 20, Ohio (Armco Steel Corp.) CANNING, Robert (G) 202 Fox Chapel Rd., Pittsburgh 38, Pa (Pittsburgh Plate Glass Co.) CAl'l'OK. John D. 2167 Highview Rd., S. W. Atlanta 11, Ga. CAPEK, RaY'mond G. 2646 S. Clarence Ave., Berwyn, Ill. CAPELLMAN, John J. (R) 1118 Highland St., Tarentum 1, Pa. (Pittsburgh Plate Glass Co.) CAPPS, Hubert, Jr. (S) R.R. 1, Coffeyville, Kans. (Ludowici-Celadon Co.) CAPPS, Webster (G) National Bureau of Standards Washington 25, D. C ROSTER 15 t CARBORUNDUM CO. rH. C. Martin) Buffalo Ave., Niagara Falls, N. Y. C_.CARDER, Frederick (Honorarr, GF) Corning Glass Works Vycor DiL, Corning, N. Y. J. Sheldon (D) t. of Design, University of Kansas rence, Kans. CA NI, George F. 628 S. Seminole, Okmulgee, Okla. CARL, John E. (GI) Corning Glass Works Box 544, Corning. X. Y. CARLSE!\, Frederick L., Jr. Box 628, Georgia Tech., Atlanta, Ga. CARLSOK. Joseph A. (S) 50 Hawthorne St. San Francisco 5, Calif. (Kraftile Co.) CARLSOX, Robert H. (W) Universal-Rundle Corp. Box 960, Kew 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. (Ml) B. F. Drakenfeld & Co., Inc. Box 519, Washington, Pa. CARNES, Kenneth C. (G) Toledo Engineering Co., Inc. 3001 Sylvania Ave., Toledo 13, Ohio CARNIGLLo\, Stephen C. (B) Food Mach. & Chemical Corp. 161 E. 42nd St., Kew York 17, N. Y. CARO, Robert (M) Hedi Schoop Art Creations, Box 384 Nortb Hollywood, Calif. CAROTHERS, HarT)' S. (M) H. C. Spinks Clay Co., Inc. 4 0 First National Bank Bldg. cillnati 2, Ohio HERS, R. B. (MF) . 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. CARPEKTER, F. Scott, Jr. (W) White Pigments Division Godfrer L. Cabot, Inc., 77 Franklin St. Boston 10, Mass. CARPENTER, Woodrow (E) Barrows Porcelain Enamel Corp. Langdon Rd. & Penn. R. R. Cincinnati 13, Ohio CARRLOWREY GLASS CO. (Noru:an R. Beck) Baltimore 3, Md. CARROLL, Jerry W. (WJ) 417 S. Western Ave., Kokomo, Ind. (American Radiator & Standard Sanitary Corp.) CARROLL, William F. (W) 3499 McNally Ave., Altadena, Calif. (Florence Ceramics Co.) CARRt:THERS, John L. (SFI) Lord Hall, Ohio State University Columbus 10, Ohio CARTER, D. R. (M) Eagle-Picher Co. American Bldg., Cincinnati I, Ohio eCARTER, f. B. (WI) Tiffin 12, Ohio erican.Standard Corp.) R, George J. 02 20th N.E., Seattle 55, Wash. CARTER, Gerard T. (W) Oakland St., R.R. 1, Box lI-A Mattapoisett, Mass. (Cornell-Dubilier Electric Corp.) VOL. 35, No. 10 (1956) CARTER, Herbert D. (WFI) 3351 Dorchester Rd. , Shaker Heights 20, Ohio (Harshaw Chemical Co.) CARTER, J. Guild (Mo) Eureka Feldspar Mining & Milling Co., Inc., 190 W. State St. Trenton 8, N. J. CARTWRIGHT, S. V. (SI) 1224 Victoria Ave., Corona, Calif. (Jordan Tile Mfg. Co.) CARVLll'\, George M., Jr. (R) Koppers Co., Inc., Koppers Bldg. Pittsburgh 19, Pa. CASAMO, Charles C. (G) Syh'ania Electric Products, Inc. Emporium. Pa. CASE MANUFACTURING CORP. (\ViIlard G. Young) 1000 W. Pine St., Robinson, Ill. CASSADY, Bert L. (R) 5115 S. Lewis Ave.. Tulsa 15, Okla. CATON. Milton W. (RF) 22490 Nevada Ave., East Detroit, Mich. (Ceramic Div., Champion Spark Plug Co.) C.-\V.-\NAVGH, D. J- (WI) 822 32nd St.. Parkersburg. W. Va. (Cnited States Ceramic Tile Co.l CAWOOD, Richard L. (M) East liverpool, Ohio (Patt"rson Foundry & Machine Co.) CA YFOR O. James M. (El) 1317 Ridge Ave., Steubenville, Ohio (Toronto Paperboard Co.) CECIL, Gowan L. (W) Lone Star Ceramics Co. Box 14215, Dallas 34, Texas CECIL, Paul S. (E) Servic(' Porcelain Enamel, Inc. Brill & Christie Sts., Newark 5, N. J. CENTRAL SILICA CO. (E. C. Sawyer) 806 Market St., Zanesville, Ohio CERAMIC ASSOCIATION OF JAPAN (Yogyo Kyokwai) 7, Shiba.Nishikubo-Sakuragawacho Minato-ku, Tokyo, Japan CERAMIC COLOR &: CHEMICAL MFG. CO. (W. F. Wenning) Box 297, New Brighton, Pa. CERAMIQUE MAASTRICHT. N.V. (Comte L. de Meeus d'Argenteuil) Hoge Barakkenstraat 6 Maastricht, Netherlands CERMAK, Frank (WF) 1542 Union St., Schenectady 9, N. Y. CERNY, Josepb J. (E) 5226-28 W. 26th St. Chicago 50 (Cicero) Ill. (Resistors, Inc.) CERULLI, Nicholas F. 73 Forest Ave., Caldwell, N. J. CHADEYRON, A. A. G. Cleveland Magnesite & Refractory Co. Ltd. Normanby Brickworks, Normanby Middlesbrough, York, England CHAI, Ki-Kon 210 Linden Ave.. Ithaca, N. Y. CHAMBERLAIN, James M. W. (B) t:. S. Stoneware Co., Box 350 Akron 9, Ohio CH ..\MBERS, Fred (M) Nationa] Gypsum Co., Lucker, Ohio CHAMBERS, Gordon H. (M) 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. CHAPMAN, Alan T. 1563 Worthington St. Columbus, Ohio CHAPMAN, Frank E., Jr. (El) 1026 Middlesex Rd., Baltimore 21, Md. (Pemco Corp.) CHAPMAN, G. Marsh (W) Harshaw Chemical Co. 6265 Wiehe Rd., Cincinnati 13, Ohio CHAR BONNIER, William P. (R) Walsh Refractories Corp. 101 Ferry St., St. Louis 7, Mo. CHARLAND, Tel L. (RI) 317 W. Kerr Dr., Midwest City, Okla. (Phillips Petroleum Co.) CHARLTON, Alex E. (W) Photoceramics, Inc. 1822 Western Ave., Cincinnati 14, Ohio CHARTERS, Melvin L. 12 Man'in Ln., Xew Brunswick. X. J. CHASE, Dana (EF) Dana Chase Publications Elmhurst National Bank Bldg. York St. at Park Ave., Elmhurst, Ill. CHASE, Harry 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. CHAl'MEIL, Frederic Verreries de Bagneaux et Appert Ferres Bagneaux siLoing Seine et Marne, France CHEX. Louis Y. L. 462 Beacon St., Boston IS, Mass. 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", Moorgate Rotherham, Yorks, England CHICAGO POTTERY CO. (J. S. Clifford) 1920 Clybourn Ave. Chicago 14, 111. CHICAGO VITREOUS CORP (William Hogenson) 1425 S. 55th Court Cicero 50, 111. CHILCOTE, Joseph H. (R) 1907 16th St., N., Arlington I, Va. (Bureau of Ships, Navy Dept.) CHILD, James L., Jr. (S) Hancock Brick & Tile Co., Box 450 Findlay, Ohio CHILDS, Clayton G. (B) 2257 N. York St., Owensboro, Ky. (General Electric Co.) CHILDS, Edwin E., Jr. (E) 1604 Greenspring Dr., Lutherville. Md. (Pemco Corp.) CHILDS, Gary D. Box 826, Alfred, N. Y. CHING, Tung Rey (J) 31 Soares Ave., Grd. Fir. Kowloon. Hong Kong (I-Feng Enamelling Co. (H.K.). Ltd.) CHIOCHETTI, Vincent E. J. (G) Box 67, West Clarks\'iI1e, N. Y. (Bausch & Lomb Optical Co.) CHISHOLM, BOYD &: WHITE CO. (Robert A. Ebersole) 610 W. 57th St. Chicago 21, Ill. CHORMANN, O. I. (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 45, Copenhagen F., Denmark ROSTER 17 1 ! i I CHRISTIE, Leonard D., Jr. (R) 343 Sound Beach Ave. Old Greenwich, Conn. (Babcock & Wilcox Co.) CHR1STMAK, Brian B. (W) 25 Eggert Ave., Metuchen, K. J. ctlJeem Manufacturing Co.) TMAK, C. E. (E) eral Enameling & Stamping Co. Ittsburgh, Pa. CHRISTMAK, H. M. (RI) 1514 lIth St., K.E., Massillon, Ohio (Massillon Refractories Co.) CHRISTOPHER, A. B. (S) Chambers Bros. Co., 52 & Media Philadelphia 31, Pa. CHt:, Gordon P. K. (E) Research Laborator)', Pfaudler Co. 1000 West Ave., Rochester 3, N. Y. CHUK, Lee 11 Magnolia Rd., Yau Yat Chuen Kowloon, Hong Kong CHeTTER. George A. (M) Middle Haddam Rd., Portland, Conn. (Globar Di,':, Carborundum Co.) CIA. MEXICANA DE REFRACTARIOS A. P. GREEN, S. A. (H. Fetter) Hamburgo 51, Apartado Postal 71 Bis Mexico, D. F. CICHOWSKI, V. J. (E) Fusite Corp., 6000 Fernview Ave. Cincinnati 13, Ohio CINCINNATI MILLING PRODS DIV. CINCINNATI MILLING MACHINE CO. (Hayward A. Gay) 4701 Marburg Ave., Cincinnati 9, Ohio CLARE, Robert L. (SF!) 212 Rector St., Perth Amboy, N. J. (Laredef Corp. of Kew Jersey) CLARK, Alec W. Beatson, Clark & Co., Ltd. Rotherham, York, England CLARK, Arthur R. (B) Box 352, Far Hills, K. J. (FOXlyn Laboratories) K. C. Burton (B) 66 Meadowcrest Dr. ittsburgh 28, Pa. (Harbison-Walker Refractories Co.) CLARK, Daniel J. (S) Vitro Mfg. Co., 60 Greenway Dr. Pittsburgh 4, Pa. CLARK, Horace K. (R) RefractOr)' & Insulation Corp. 120 Wan St., Kew York 5, N. Y. CLARK, James L. (S) 150 Yates St., Denver, Colo. (Robinson Brick & Tile Co.) CLARK, John D. (Xl) 656 Lindley Rd., Glenside, Pa. (Foote Mineral Co.) CLARK, Paul M. (S) Chattahoochee Brick Co. Chattahoochee, Ga. CLARK, Richard E. (MI) 4104 Dunhaven Rd., Dallas, Texas (R. T. Vanderbilt Co., Inc.) CLARK, Thaddeus J. E. (W) 113 Elmore Ave., Trenton 9, N. J. (Trenton Potteries Co.) CLARK, W. D., Jr. (R) A. P. Green Fire Brick Co. Mexico, Mo. CLARKE, Ford K. (G) Philco Corp., Church Rd., Lansdale, Pa. CLARKE, James A. Bilston Foundries Ltd. Highfields, Bilston, Staffs, England CLAUS, Karl M. (W) Mosaic Tile Co., Pershing Rd. Zanesville, Ohio ' Wilfred (E) _ iser Metal Products, Radcliffe St. ristol, Pa. AYBURN CO.. LTD. (R. M. Hungerford) 850 W. Hastings St. Vancouver 9, B. C., Canada VOL. 35, No. 10 (1956) CLAYCRAFT CO. (Phillip W. Tefft) Box 866, Columbus 16, Ohio CLAYPOOLE, Stewart A. (G) , R.R. 2, Painted Post, N. Y. (Corning Glass Works) orCLEEK, Given W. (Gl National Bureau Standards Washington 25, D. C. CLEMENS, August, Jr. (M) 205 E. Gittings Ave., Baltimore 12, Md. (Arcrods Corp.) CLEMEXS, Eugene C. (SFI) Cannelton Sewer Pipe Co. Cannelton, Ind. . . CLEVELASD, George B. (B) California Div. of Mines 217 W. First St. Los Angeles 12, Calif. CLEVELAND MUSEUM OF ART (William M. Milliken) Cleveland 6, Ohio . CLEVELAND, Theodore K. (G) Philadelphia Quartz Co. of California Sixth & Grayson Sts. Berkeley 10, Calif. CLEVEXGER, Thomas R. Massachusetts Institute of Tech. Rm. 20-C-00I, Cambridge, Mass. CLEVER, William R. (G) 401 N. Elm St., Lincoln, Ill. (Pittsburgh Plate Glass Co.) CLEVERLY, Robert B. (SI) 22120 Westwood Rd. Fairview Park 26, Ohio (Universal Sewer Pipe Corp.) CLEWS, Francis H. British Ceramic Research Assn. Mellor Laboratories, Shelton Stoke-on-Trent, England CLIFFORD, J. S. (W) Chicago Pottery Co. 1920 Clybourn Ave., Chicago 14, Ill. CLIKE, 1. R. (S) Western Brick Co., Danville, Ill. CLINE, Robert W. (WI) 377 Main St., East Aurora, N. Y. (Onondaga Pottery Co.) CLIPPER DIAMOND TOOL CO., INC. (Joseph Klipper) 345 Hudson St. Kew York 14, N. Y. CLOSE, Barbara S. 36 Lenox PI., Middletown, N. Y. CLOSE, Paul (G) Owens-Illinois Box 1035-6, Toledo, Ohio CLOUGH, Philip J. (R) National Research Corp. 70 Memorial Dr., Cambridge 42, Mass. CLOWES, E. J. (W) Clowes Ceramic Corp. 3711 Calhoun Ave. Chattanooga 7, Tenn. CMOLIK, Clarence G. (B) 4403 Sheraton Dr., Parma 29, Ohio (Clevite Research Center) COATES, Bill (SF) Coates Co., Box 935, Austin 65, Texas COBLE, Robert L. (B) General Electric Research Lab. Box 1088, Schenectady, N. Y. CODE, Thomas E. (EJ) 921 E. Jefferson, Miamisburg, Ohio (Frigidaire Div., General Motors Corp.) COEN, Bernard (W) Woodbridge Sanitary Pottery Corp. 500 Green St., Woodbridge, N. J. COFFEEN, William W, (EFI) 1024 Boulevard, Westfield, N. J. (Metal & Thermit Corp.) COFFER, L. Wallace (B) Extractive Metallurgy Division Battelle Memorial Institute 505 King Ave., Columbus I, Ohio COFFIN, Leon B. (W) Andover, N. Y. (Alfred University) COGEN, Saul (5) 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 (5) 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. COHD" Bernard (G) . 130 Spruce Wood Circle Geneva, K. Y. (Sylvania Electric Products, Inc.) COIN, R. H. (E) Ingram-Richardson, Inc. Jefferson Rd., Frankfort, Ind. COLCORD, John E. (RJ) 1706 Sherman Ave. South Bend 16, Ind. (Bendix Aviation Corp.) COLt:, David L. Box 611, Alfred, K. Y. COLE, G. Percy (G) Dominion Glass Co., Ltd. Box 190, Montreal, Que., Canada COLE, Harold R. (R) l\ational Carbon Co. Town St., Fostoria, Ohio COLE, Sandford S. (BFI) Titanium Division, National Lead Co. Research Dept., Box 58 South Amboy, N. J. COLE, Sandford S., Jr. (RI) Power Tube Div., Raytheon Mfg. Co. Waltham 54, Mass. COLEMAK. Bruce G. J & AP Scott Ltd. Box 209, Dunedin, Kew Zealand COLEMAN, Caruthers A. (5) Big Run Coal & Clay Co. 133 l". Limestone St., Lexington, Ky. COLEMAN, J. C. (G) 3746 Mapleway Dr., Toledo 14, Ohio (Kimhle Glass Co.) COLEMAK, Robert L. (51) 20631 Greenwood, Olympia Fields, Ill. (Chicago Brick Co.) COLEMAN, Thomas B. (5) 635 Tarboro St., Rocky Mount, N. C. (Nash Brick Co., Inc.) COLLIER, Roger E. Glenwood Park Apts., Apt. 1 2605 Oak St., Chattanooga, Tenn. COLLINS, G. F. (G) Pittsburgh Plate Glass Co., Box 750 Henryetta, Okla. COLLIl"S, Paul F. (WI) Austenal, Inc. 7001 S. Chicago Ave., Chicago 37, 111. COLLIKS, William G. (BIl Johns-Manville Corp., Waukegan, Ill. COLONIAL INSULATOR CO. (Frank Mason) 945 Grant St. Akron 11, Ohio COLOSKY, Benjamin P. School of Ceramics Rutgers University l"ew Brunswick, N. J. COLUMBIA FIRE BRICK CO. (M. L. Hamaker) 612 First National Bank Bldg. Canton 2, Ohio COLUMBIA-SOUTHERN CHEMICAL CORP. (R. W. Miller) One Gateway Center, Pittsburgh 22, Pa. COMEFORO, J. E. (W) Frenchtown Porcelain Co. Frenchtown, N. J. ROSTER 19 v. , ------~ COMER, Richard L. (W) 6161 Springdale Blvd. Grand Blanc, Mich. (A C Spark Plug Div. General Motors Corp.) COMMERCIAL DECAL, INC. *lfred Dubrssen) Box 759 st Liverpool, Ohio ERCIALORES. INC. Albert R. Eckel) Clover, S. C. COMMONS, Charles H . Jr. (WFI) Forest Lane, R. R. 2, Malvern, Pa. (Foote Mineral Co.) COMPAGNUCCI, Julius P. (W) Bay Ridge Specialty Co., Inc. Stokes Ave., Trenton 10, K 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.) CO:\DO:\, Edward C. (G) 6604 Waterman Ave .. St. Louis 5, Mo. (Consultant) CO:\E, Carroll (G) 1387 Virginia Ave., Columbus 12, Ohio (E. I. du Pont de l'emours & Co.) CO:\LEY, James M. 363 l'. Transit St., Lockport, N. Y. C01\N, Willi' M. (G) 6312 Indiana Ave., Kansas City 30, Mo. (Consultant) CONNELL, George A. (B) Pacific Coast Borax Co., Box 9128 Station 5, Los Angeles 5, Calif. CONNELLY, Daniel S. (R) 2801 N. Park Blvd. Cleveland Heights 18, Ohio (Ohio Crankshaft Co.) CONOVER, Ray C. (RI) Gladding, McBean & Co. 1006 Alcalde Way, Glendale 7, Calif. 110 TRAD. Charles E., Jr. (G) 'bbey-Owens-Ford Glass Co. x 4278, Charleston 4, W. Va. AD, Keith (G) Owens-Illinois Box 1019. Oakland 4, Calif. C01\ROE, Barden A. (G) 93 Gorton St., Corning, N. Y. (Corning Glass Works) CONSOLIDATED FELDSPAR DEPT. INTERNATIONAL MINERALS & CHEMICAL CORP. (William K. Burriss) 20 K Wacker Dr., Chicago 6, Ill. CONSOLIDATED GLASS WORKS, LTD. (I. Donen) Box 562 Genniston, Transvaal, South Africa CONSUMERS GLASS CO., LTD. (John N. Jordan) Box 456, Station B Montreal, Que., CanadA CONTARDI, William A. (WI) 206 Highland Ave., Metuchen, N J. (Automatic Mfg. Co.) CONWAY, Myron J. (W) 943 Orchard St., Zanesville, Ohio (Mosaic Tile Co.) COOK, A. W. Hargrea"es Mill Ltd., Botteslow St. Hanley, Stoke-on-Trent, England COOK, Eugene M. (G) 509 Broadlawn Terrace, Vineland, N. J. (Kimble Glass Co.) COOK, Hennan L. (EF) 1555 Beardsle)' Ave., Muskegon, Mich. (Norge Div., Borg-Warner Corp.) COOK, Leslie ]. (M) 1621 Reliez Valley Rd. Lafayette, Calif. Leslie Cook Laboratories) _ , Louis S. 85 Highland Dr. all Lake City 7, Utah COOK, Ralph L. (EFI) 204 Ceramics Bldg. University of Illinois, Urbana, III. VOL. 35, No. 10 (1956) COOK, W. Howard (R) Box 131, Norris, Tenn. (Cnited States Bureau of Mines) COOKE, Charles C. (G) 2858 S. 109th St., Toledo 11, Ohio (Owens-I11inois) COOKE, David C. (WI) 25 Chestnut St., Haddonfield, N. J. (Universal-Rundle Corp.) COOKE, Robert S. (E) Industrial Centre #5 Quebec, Que., Canada (Crane Steelware, Ltd.) COOKE, William C. (G) Blue Ridge Glass Corp. Kingsport, Tenn COOMBS, W. M. (G) Owens-I1linois Bridgeton Plant No. 14, Bridgeton, 1\. J. COOPER, Alfred R. (G) 45 Orchard St. Jamaica Plain, Mass. (Emhart Mfg. Co.) COOPER, George 1. (W) 401Mackley Apts., Philadelphia 24, Pa. (Signal Corps Supply Agency) COOPER, Joseph Knoxville, Tioga County, Pa. COOPER, Roger C. (E) Fusite Corp .. 6000 Fern"iew Ave. Cincinnati 13, Ohio COOPER, Walter W. (M) Dow Chemical Co. Inorganic Chemicals Sales Midland, Mich. COOPER. William G. (M) Box 204, Strongsville, Ohio (Ferro Corp.) COORS PORCELAIN CO. (H. W. Ryland) 600 Ninth St. Golden, Colo. COPE, William E. (M) Barclay Machine, Inc. Box 146, Sebring, Ohio COPELAl'D, R. Spencer C. W. T. Copeland & Sons Ltd. Spode Works Stoke-on-Trent, England CORBAN, Wilbur H. (W) 3198 Dresden Rd., Zanesville, Ohio (Ceramic Supply Co.) CORBMAN, Mitchell (S) Kew Jersey Shale Brick & Tile Corp. Box 249, Somerville, N. J. CORBMAN, Morriss (5) New Jersey Shale Brick & Tile Corp. Box 249, Somerville, N. J. CORDES, John E. (WI) 5333 Humboldt Ave., S. Minneapolis 19, Minn. (Lithium Corp. of America, Inc.) CORHART REFRACTORIES CO., INC. (Frederick S. Thompson) 1600 W. Lee St., Louisville 10, Ky. CORNING GLASS WORKS (Howard R. Lillie) Corning, N. Y. CORNISH, Frank L. (G) Corning Glass Works, Charleroi, Pa. CORNWELL, George L. (B) 171 Eiseman, Kenmore 17, N. Y. (Exolon Co.) CORRADA, Marco A. (G) Puerto Rico Glass Corp. Box 4272, San Juan, Puerto Rico CORSON, Robert (GJ) 90 Cayuga St., Seneca Falls, !\. Y. (Sylvania Electric 'Products, Inc.) CORWIN, Rudolph E. (B) Applied Physics Laboratory University of Washington 1013 E. 40th St., Seattle 5, Wash. COSTELLO, R. E. (R) Zeller Corp. Fort Wayne Rd., Defiance, Ohio COTHRAN, Lawrence Box 2859. Clemson College Sta. Clemson, S. C. COTTON, Nigel Elijah Cotton Ltd. Nelson Potter)', Hanle)' Stoke-onTrent, Stafford, England COUCH, Albert H. (RFI) Libbev-Owens-Ford Glass Co. 1701 E. Broadwa)', Toledo 5, Ohio COUGHANOUR, L. W. (B) 4094 Ben Lomond Dr., Palo Alto, Calif. (General Electric Microwave Lab.) COCL TER, William G. (M) 4824 Meadowlane :\. \\'., Canton, Ohio (Pemco Corp.) COl..'XTS, William E. (B) 1422 W. Home Ave., Flint, Mich. (A C Spark Plug Dh. General Motors Corp.) COVRI, Richard A. (G) Box 109, South Woodstock, Conn. (American Optical Co.) COVRT, G. Robert (E) 936 Hawthorne Ln., Kankakee. Ill. (A. O. Smith Corp.) COURTER, R. F. (M) Globar Dh., Carborundum Co. Niagara Falls, N. Y. COURTNEY, Scott J. (M) B. F. Drakenfeld & Co. 45-47 Park Pl.. New York 7, l\. Y. COUTANT, Edward R. (G) General Electric Co., 1285 Boston Ave. Bridgeport 2, Conn. COVAN, H. E. (M) R. R. 3, Box 10, Bryan, Texas (Orton Foundation) COWAN,]. G. "Roselands," Billington Haughton, Staff, Enll'land (Universal Grinding Wheel Co.) COWAN, R. Guy (OF) 416 Brooklea Dr. Fayetteville, N. Y. (Onondaga Pottery Co.) COWAX, Robert E. (BJ) Westinghouse Atomic Power Oil'. Box 1468, Pittsburgh 30, Pa. COWELL, J. Robert, Jr. (G) Woodville Lime Products Co. 2140 Jefferson Ave., Toledo 2, Ohio COWLES, Rohert J. (W) Quality Components, Inc. St. Marys, Pa. COWLES, Roderick J. (R) Walworth Co., 800 E. First St. South Boston 27, Mass. COWLING, Kenneth W. 79 Norwood Rd. Sheffield 5, England (Thos. Marshall & Co., Ltd.) COX, Edwin H. (E) 20111 Wickfic1d Ave. Cleveland 22, Ohio (Ferro Corp.) COX. John E. (E) Mellon Institute 4400 Fifth Ave., Pittsburgh 13, Pa. COX, Paul E. (SF) 520 Canal St., Baton Rouge 2, La. (Louisiana Geological Survey) COX. Samuel F. (G) Pittsburgh Plate Glass Co. Research Lab., Creighton, Pa. C:OX, Shaun M. J. A. Jobling & Co., Ltd. Wear Glass Works Sunderland, Durham, England COY, John Joel (E) 1689 Victoria Park Ave., Apt. 410 Scarborough, Ont., Canada (Frigidaire Products of Canada, Ltd.) CRAFT, R. S. (R) Findlay Clay Products Co. Washington, Pa. CRAIG, Bruce G. (E) 4520 N. 148th, Milwaukee, Wise. (A. O. Smith Corp.) CRAIG, David M., Jr. (G) Pittsburgh Plate Glass Co. One Gateway Center, Pittsburgh 22, Pa. ROSTER 21 " r,~. t 1 't CRAIG, James W. (RF) Canadian Refractories, Ltd. 540 Canada Cement Bldg. Montreal 2, Que., Canada CRAIG, John D., Jr. lW) 14 Emerald Ln.. Levittown, Pa. itro Mfg. Co.) ER, W. E. (WFI) ndustrial Ceramic Products, Inc. 965 W. Fifth Ave., Columbus 8, Ohio CRAKDALL, Eugene R. (RI) 258 Gulf St., Milford, Conn. (Mullite Refractories Co.) CRAl"WALL, James R. (El) 4514 Chestnut St., Bethesda 14, Md. (Kational Bureau of Standards) CRAKDALL, William B. (RI) Box 707, Alfred, K. Y. (O.K.R. Research Project) CRAXDOl\', A. S. (G) American Window Glass Co. 20th Floor, Farmers Bank Bldg. Pittsburgh 22. Pa. CRANE CO., CHATTANOOGA DIV. (W. M. Hamilton) 33rd and Alton Park Blvd. Chattanooga I, Tenn. CRANE-PACIFIC CO. (Arthur E. Hoch) 330 W. Citrus St., Colton, Calif. CRA\"EX, Henr}' E. (R) Davison Chemical Co. Dh. of W. R. Grace & Co., Box 885 Lake Charles, La. CRAWFORD, George E. (WFI) 221 Sumner Ave., New Castle, Pa. (Universal-Rundle Corp.) CRAWFORD, George S. (M) l'ninrsitv of British Columbia B. C. Re~earch Council Vancou\'er 8, B. c., Canada CRAWFORD, J. C., Jr. (R) Johns-Manville Sales Corp. 22 E. 40th St., Kew York 16, N. Y. WFORD, J. L. (RFI) 854 Foothill Rd. anta Barbara, Calif. ESON, Walter F. (R) Babcock & Wilcox Co. 1040 Kational City Bank Bldg. Cleveland 14, Ohio CRESS, William C. (SI) Carolina Ceramics, Inc. R.R. 3, Columbia, S. C. CRESSY, Morton (G) Emhart Manufacturing Co. 333 Homestead Ave. Hartford 2, Conn. CRIDER, Paul H. (E) 1993 Butler Dr., Turtle Creek, Pa. (United States Steel Corp.) CRISPIKO, Joseph C. (R) Corning Glass Works Corning. K. Y. S. A. CRISTALERIAS DEL URUGUAY (Francisco J. Gercar) Comercio 1491 Montevideo, Uruguay CROCKETT, William E. (X) 1215 N. Arlington Ave. Indianapolis, Ind. (Saleos Engineer) CROXI~, Leo J. (R) Raytheon Manufacturing Co. Foundry Ave.. Waltham 54, Mass. CROKINGER, George J. (M) A. J. Wahl, Inc., 8 Central Ave. Brocton, N. Y. CROOK, Charles Edmund (W) Los Angeles Chemical Co. 4545 Ardine St.. South Gate, Cali!. CROOKSTOK, James A. (RI) 1224 E.. Jackson St., Mexico, Mo. (A. P. Green Fire Brick Co.) OOKSVILLE CHINA CO. (Harry J. Bennett) Crooksville, Ohio CROOM, Henr}' C. (SJI) 893 Boulevard, Macon, Ga. (Burns Brick Co.) VOL. 35. No. 10 (1956) CROSBY, Donald P. lRI) Harbison-Walker Refractories Co. Fulton, Mo. CROSKEY, Carl D. (W) 208 Rollingdale Rd. Catons\ille 28, Md. (Insulator Dept. General Eleoctric Co.) CROSS, A. H. B. Brown-Firth Research Lab. Princess St., Sheffield 4, York, England CROSS, Charles D. (5) 1203 Xinth Ave., Jasper, Ala. I Xatco Corp.) CROSSAl'\, \\'. A. (S) Metropolitan Brick, Inc. 1017 Renkert Bldg., Canton 2, Ohio CROSSLEY MACHINE CO. 301 Monmouth St.. Trenton 9, X. J. CROl'CH, Lester A. Georgia Institute of Technology Box 270, Atlanta, Ga. CROWE. Samuel H., Jr. (G) 416 Mississippi Ave., Crystal City. Mo. (Pittsburgh Plate Glass Co.) CROWELL, Robert W. (G) Kimble Glass Co., 711 Southwood .''''e. Columbus, Ohio CROWLEY, Henry L. rB) 365 Forest Rd., South Orange, K. J. I Henr)' L. Crowley & Co., Inc.) CROWLEY, Michael S. (I) Pennsylvania State l'niversitv Dept. 'of Geophysics & Geochemistry 223 Mineral Sci. Bldg. l'ni\'ersitv Park. Pa. CRUIKSHAKK, C. L. (M) Great Lakes Foundry Sand Co. 720 United Artists Bldg. Detroit 26, Mich. Cl'MMINGS, J. M. (M) British Columbia Cement Co., Ltd. B. C. Cement Bldg. Victoria, B. c., Canada CUMMINS, Arthur B. (B) Morning Glory Rd., Bound Brook, K. J. (Johns-Manville Corp.) CUMMINS, Robert K. (G) General Eleoctric Co., 1133 E. 152nd St. Cleveland 10, Ohio Cl7KLIFFE, J. A. (5) 266 Seventh St. Medicine Hat, Alta., Canada (Medicine Hat Brick & Tile Co., Ltd.) Cl'KKINGHAM, James A. (S) Adams Clay Products Co., Box 226 Martinsville, Ind. CUXXIXGHAM. Robert J. (G) Clark Ave., R.R. 5, l'\ewark, Ohio (Owens-Corning Fiberglas Corp.) CrPIDRO, Vincent N. (W) 2204 Kirchoff Rd. Arlington Heights. Ill. (Radio Materials Corp.) CURCIO, Anthony L. (WI) 21 Church St., Bound Brook, K. J. (General Ceramics Corp.) CURRAN, EDWARD ENGINEERING, LTD. (D. Ryan) Cardiff, Wales CURRAN, Martin T. Box 562, Alfred, N. Y. Cl.'RRAN. Robert (Rl) 75-08 35th Ave. Jackson Heights 72, N. Y. (Plibrico Co.) Cl'RRIE. Thomas E. (S) 331 W. ColJege Ave., State ColJege, Pa. (Pennsylvania State University) CURRY, William J . Jr. (R) Hiram Swank's Sons, Box 630 Johnstown, Pa. CURTIS, Carl E. (RI) R. R. 3, Kingston, Tenn. (Union Carbide Nuclear Corp.) CURTIS, Miles E. (E) 301 Brunswick Rd., Louisville 7, K). (Ferro Corp.) CCRTlS, William H., Jr. (EJ) 1424 Monte Sano Ave., Augusta, Ga. It.::. S. Army) Cl'RTS, R. M. (G) American Potash & Chemical Corp. 99 Park Ave., Kew York, K. Y. CCSICK, Charles S. (G) Pittsburgh Plate Glass Co. Wks. 4, Ford City, Pa. Cl'THILL, John R. (E) Enameled Metals Section Kational Bureau of Standards Washington 25, D. C. Ct:TLER, Ivan B. (B) 220 Mines Bldg., University of Vtah Salt Lake City 12, nah CZ_-\RXECKI, Kamil B. 29. Whitehall London 5. W. I, England IAglite, Ltd.) CZECHOSLOVAK CERAMIC AND GLASS SOCIETY (R. Barta) Technicka ul.c.5 Praha XIX, Czechoslovakia D D'ADRIA~, Vincent L. D. (G) Mississippi Valley Research Lab., Inc. 901 S. 18th St., St. Louis 3, Mo. DAGER, Probert W. (MFl) 5628 Greenbush, Van Nuys, Calif. (H. C. Spinks Clay Co.) DALE, Alfred J. Johnson Bros. (Hanley) Ltd. Stoke-on-Trent, England DALEY. Frank E. (M) Godfrer L. Cabot, Inc. 46 Barard St., l'\ew Brunswick, 1\. J. DALTON, Robert H. (G) 234 Dele\'an Ave., Corning, N. Y. (Corning Glass Works) DAMEROl\, Joseph J. (S) Coates Co., Box 935, Austin, Texas DA~IELS01\, R. R. (EFI) 120 Richmond Terrace, Rahwar, 1\. J. (Metal & Thermit Corp.) DAKK, Milton (G) Owens-Illinois, General Research Dh. Toledo 1, Ohio DANKS, William H. (G) 216 Mississippi Ave., Crystal City, Mo. (Pittsburgh Plate Glass Co.) DARBY. George M. (M) 61 Washington Ave., 'Westport, Conn. (Dorr-Oliver, Inc.) DARLING, D. G. (5) Toronto Brick Co., Ltd. 425 Bayview Ave. Toronto 17, Ont. Canada DAR~ELL, Harmon C. (5) Murray Tile Co., Inc., Cloverport, Ky. DARRAH, W. A. (E) 901 N. Oak Park Blvd., Oak Park, Ill. (Continental Industrial Engineers, Inc.) DAS GUPTA, A. K. (W) Allen-Bradley Co. 1.16 W. Greenfield Ave. Milwaukee 4, VI'isc. DAl'MKE, 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. DAYEKPORT, Warren H. (R) 53 Paine St., Worcester 5, Mass. (N orton Co.) DAVEY, Earl R. (W) Canadian Ohio Brass Co.. Ltd. Niagara Falls, Ont., Canada DAVEY, Frederick K. (B) Carborundum Co. Niagara Falls, K. Y. DAVIDSON, Robert W. (R) 1\ orth American Refractories Co. Curwensville, Pa. ROSTER 23 I r' CRAIG, James W. (RF) Canadian Refractories, Ltd. 540 Canada Cement Bldg. Montreal 2, Que., Canada CRAIG, John D., Jr. (W) 14 Emerald Ln., Levittown, Pa. Vitro Mfg. Co.) _ ER, W. E. (WFI) dustrial Ceramic Products, Inc. 965 W. Fifth Ave., Columbus 8, Ohio CRA!'.:DALL, Eugene R. (R!) 258 Gulf St., Milford, Conn. (Mullite Refractories Co.) CRAXDALL, James R. (EI) 4514 Chestnut St., Bethesda 14, Md. (Kational Bureau of Standards) CRAKDALL, William B. (R!) Box 707, Alfred, N. Y. (O.N.R. Research Project) CRA:\DON, A. S. (G) American Window Glass Co. 20th Floor, Farmers Bank Bldg. Pittsburgh 22, Pa. CRANE CO., CHATTANOOGA DIV. (W. M. Hamilton) 33rd and Alton Park Blvd. Chattanooga 1, Tenn. CRANE-PACIFIC CO. (Arthur E. Hoch) 330 W. Citrus St., Colton, Calif. . CRAVE:\, Henry E. (R) Davison Chemical Co. Di'. of W. R. Grace & Co., Box 885 Lake Charles, La. CRAWFORD, George E. (WFI) 221 Sumner Ave., Kew Castle, Pa. (Universal-Rundle Corp.) CRAWFORD, George S. (M) University of British Columbia B. C. Research Council "Vancouver 8, B. c., Canada CRAWFORD, J. C., Jr. (R) Johns-Manville Sales Corp. 22 E. 40th St., New York 16, N. Y. l id"WFORD, J. L. (RFI) 54 Foothill Rd. nta Barbara, Calif. SON, Walter F. (R) Babcock & Wilcox Co. 1040 National City Bank Bldg. Cleveland 14, Ohio CRESS, William C. (51) Carolina Ceramics, Inc. R.R. 3, Columbia, S. C. CRESSY, Morton (G) Emhart Manufacturing Co. 333 Homestead Ave. Hartford 2, Conn. CRIDER, Paul H. (E) 1993 Butler Dr., Turtle Creek, Pa. (United States Steel Corp.) CRISPINO, Joseph c. (R) Corning Glass Works Corning, N. Y. S. A. CRISTALERIAS DEL URUGUAY (Francisco J. Gercar) Comercio 1491 Montevideo, Uruguay CROCKETT, William E. (X) 1215 N. Arlington Ave. Indianapolis, Ind. (Sales Engineer) CRO!\IN, Leo j. (R) Raytheon Manufacturing Co. Foundry Ave., Waltham 54, Mass. CRONINGER, George J. (M) A. ]. Wahl, Inc., 8 Central Ave. Brocton, N. Y. CROOK, Charles Edmund (W) Los Angeles Chemical Co. 4545 Ardine St., South Gate, Calif. CROOKSTON, James A. (RI) 24 E. Jackson St., Mexico, Mo. . P. Green Fire Brick Co.) KSVILLE CHINA CO. (Harry J. Bennett) Crooksville, Ohio CROOM, Henry C. (SJI) 893 Boulevard, Macon, Ga. (Burns Brick Co.) VOL. 35, No. 10 (1956) CROSBY, Donald P. (RI) Harbison-Walker Refractories Co. , Fulton, Mo. CROSKEY, Carl D. (W) 208 Rollingdale Rd. Catonsville 28, Md. (1 nsulator Dept. General Electric Co.) CROSS, A. H. B. Brown-Firth Research Lab. Princess St., Sheffield 4, York, England CROSS, Charles D. (5) 1203 :\inth .'he., jasper, Ala. (!\ atco Corp.) CROSSAK, W. A. (S) Metropolitan Brick, Inc. 1017 Renkert Bldg.. Canton 2, Ohio CROSSLEY MACHINE CO. 301 Monmouth St., Trenton 9, :\. J. CROeCH, Lester A. Georgia Institute of Technology Box 270, Atlanta, Ga. CROWE, Samuel H .. Jr. (G) 416 Mississippi Ave., Crystal City. Mo, (Pittsburgh Plate Glass Co.) CROWELL, Robert W. (G) Kimble Glass Co., 711 Southwood .'\\-e. Columbus. Ohio CROWLEY, Henry L. (B) 365 Forest Rd., South Orange, :\. j. (Henry L. Crowley & Co., Inc.) CROWLEY, Michael S. (l) Pennsylvania State l.:niversity Dept. of Geophysics & Geochemistry 223 Mineral Sci. Bldg. University Park, Pa. CRUIKSHAKK, C. L. (M) Great Lakes Foundry Sand Co. 720 United Artists Bldg. Detroit 26, Mich. Ct.'MMINGS, J. M. (M) British Columbia Cement Co., Ltd. B. C. Cement Bldg. Victoria, B. c., Canada CUMMINS, Arthur B. (B) Morning Glory Rd., Bound Brook, N. J. (Johns-Manville Corp.) CUMMINS, Robert K. (G) General Electric Co., 1133 E. 152nd St. Cleveland 10, Ohio Cl..'KLIFFE, J. A. (S) 266 Seventh St. Medicine Hat, Alta., Canada (Medicine Hat Brick & Tile Co., Ltd.) Ct.'NKINGHAM, James A. (S) Adams Clay Products Co., Box 226 Martinsville, Ind. CFKKINGHAM, Robert J. (G) Clark Ave., R.R. 5, Kewark, Ohio . (Owens-Corning Fiberglas Corp.) Cl.:PIDRO, Vincent N. (W) 2204 Kirchoff Rd. Arlington Heights. Ill. (Radio Materials Corp.) CURCIO, Anthony L. (WI) 21 Church St., Bound Brook, K. J. (General Ceramics Corp.) CURRAN, EDWARD ENGINEERING, LTD. (D. Ryan) Cardiff, Wales CURRAN, Martin T. Box 562, Alfred, N. Y. CURRAN, Robert (RI) 75-08 35th Ave. Jackson Heights 72, N. Y. (Plibrico Co.) CURRIE, Thomas E. (S) 331 W. College Ave., State College, Pa. (Pennsylvania State University) CURRY, William J., Jr. (R) Hiram Swank's Sons, Box 630 Johnstown, Pa. CURTIS, Carl E. (RI) R. R. 3, Kingston, Tenn. (Union Carbide Nuclear Corp.) CURTIS, Miles E. (E) 301 Brunswick Rd., Louisville 7, Ky. (Ferro Corp.) CCRTIS, William H., Jr. (EJ) 1424 Monte Sano Ave., Augusta, Ga. (t:. S. Army) CURTS, R. M. (G) American Potash & Chemical Corp. 99 Park Ave., Kew York, K. Y. CUSICK, Charles S. (G) Pittsburgh Plate Glass Co. Wks. 4, Ford City, Pa. CUTHILL, John R. (E) Enameled Metals Section National Bureau of Standards Washington 25, D. C. Ct:TLER, Ivan B. (B) 220 Mines Bldg., University of Utah Salt Lake City 12, Utah CZAR:\ECKI, Kamil B. 29. Whitehall London S. W. 1, England (Aglite, Ltd.) CZECHOSLOVAK CERAMIC AND GLASS SOCIETY (R. Barta) Technicka ul.c.5 Praha XIX, Czechoslovakia o D'ADRIAK, Vincent L. D. (G) Mississippi Valley Research Lab., Inc. 901 S. 18th St., 51. Louis 3, Mo. DAGER, Probert W. (MF!) 5628 Greenbush, Van Nuys, Calif. (H. C. Spinks Clay Co.) DALE, Alfred J. Johnson Bros. (Hanley) Ltd. Stoke-on-Trent, England DALEY, Frank E. (M) Godfrey L. Cabot, Inc. 46 Bayard St., Kew Brunswick, N. J. DALTON, Robert H. (G) 234 Delevan Ave., Corning, N. Y. (Corning Glass Works) DAMERON, Joseph J. (S) Coates Co., Box 935, Austin, Texas DAKIELSON, R. R. (EFI) 120 Richmond Terrace, Rahway, K. J. (Metal & Thermit Corp.) DANK, Milton (G) Owens-Illinois, General Research Di\'. Toledo I, Ohio DANKS, William H. (G) 216 Mississippi Ave., Crystal City, Mo. (Pittsburgh Plate Glass Co.) DARBY, George M. (M) 61 Washington Ave., Westport, Conn. (Dorr-Oliver, Inc.) DARLING, D. G. (S) Toronto Brick Co., Ltd. 425 Bayview Ave. Toronto 17, Ont., Canada DARNELL, Hannon C. (5) Murray Tile Co., Inc., Cloverport, Ky. DARRAH, W. A. (E) 901 N. Oak Park Blvd., Oak Park, Ill. (Continental Industrial Engineers, Inc.) DAS GUPTA, A. K. (W) Allen-Bradley Co. 136 W. Greenfield Ave. Milwaukee 4, Wise. DAUMKE, Arthur H. (W) 17 W. 170 Hillside Ln., Hinsdale, Ill. (Harshaw Chemical Co.) DAUWALTER, A. C. (S) 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, Frederick K. (B) Carborundum Co. Niagara Falls, K. Y. DAVIDSON, Robert W. (R) North American Refractories Co. Curwensville, Pa. ROSTER 23 !I. .'f " "" r ,t i I 1..1... - ,..~--. DAVIES, Chester A. (WI) Park Lake Ave., Titusville, N. J. (American Radiator & Standard Sanitary Corp.) DAVIES, Edward G. (G) Dominion Glass Co., Ltd. aIIaCebUrg, Ont., Canada IES, Thomas H. (G) e1lon Institute, 4400 Fifth Ave. Pitts,,"urgh 13, Pa. DAVIS, Earl K. (G) Bausch & Lomb Optical Co. Rochester, N. Y. DAVIS FIRE BRICK CO. Oak Hill, Ohio DAVIS, Harry E. (WFI) lJ niversal Potteries, Inc. Cambridge, Ohio DAVIS, H. M. (E) Pennsylvania State Universit) Mineral Industries Bldg. University Park, Pa. DA \'lS, James K. (G) 144 High Rd .. Corning. X. Y. (Corning Glass Works) DA \'IS. John :\., Sr. (W) Sentry Sanitary Corp. Box 427. Mannington, \\'. \'a. DA\'IS. X. B. 1M) 77 ~letcalfe St .. Rm. 805 Ottawa 4. Ont., Canada I Canadian Flint & Spar Dept,) DAVIS, Sam H., Jr. (W) 808 X. Howard, Robinson, Ill. (Case Mfg. Corp.) DA\'IS. William A. (G) 1421 Second St. M. R., Tarentum, Pa. I Pittsburgh Plate Glass Co.) DAY, Arthur L. (Honorary, G) 9113 Old Georgetown Rd. Bethesda 14, Md. DA Y. Britton T. (R) American Fire Ciav & Products Co. Box 157. Canfield,' Ohio _ Charles M. (R) lIey Dolomite Corp. oom 902, 915 Olive St. St. Louis I, Mo. DAY, Delbert E. 1003 Park St.. Rolla, Mo. DAY. Frank. Jr. (M) Corning Glass Works, Corning, N. Y. DAY. Jack F. (W1) rnited Stat~s Ceramic Tile Co. Fourth & Walnut X. E., Canton, Ohio DAY. Loren L. (GJ) 2401 X. Mesa, Apt. 4, El Paso, Texas (Pittsburgh Plate Glass Co.) DAY. Ralph K. (GFI) Lihbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5. Ohio DA Y. Robert B. (SI) 18 Lynnwood Dr., R. R. 3, Morris. Ill. (Morris Clay Products Co.) DEADERICK. James W. (B) 1011 Norvell Dr. Signal Mountain, Tenn. (American Lava Corp.) DEADWYLER. Earnest W. (RI> 25Q9 Glenmawr :"'e. Columbus 2. Ohio I rnit ..d States Army) DEAX. Estus R. lBJ) 1416 Tabor A,e., Da)ton 10, Ohio (Xational Cash Register Co.) DEAR. Paul S. (BFI) Virginia Polytechnic Institute Box 205. Blacksburg, Va. DE 'BECK, Hubert O. (M) 5105 Belmont. Apt. 3. Houston 5, Texa's (Baroid Div., National Lead Co.) !HAM, W. S. (RFI) ited States Steel Corp. 5 William Penn PI. Pittsburgh 30, Pa. DECKER. Alfred R. (W) 811 N. Seventh St. Cambridge, Ohio (Champion Spark Plug Co.) VOL. 3.). 1'0. 10 (l95G) DECKER, Edgar A. (M) G. S. Robins & Co. 126 Chouteau, St. Louis 2, Mo. DECKER, Edward L. (W) Summer St.. WiJliamstown, Mass. (Sprague Electric Corp.) DE COrRSEY, Donald T. (E) 57 Prospect Park South \\. est Brooklyn IS, X. Y. . DEETH, H. R. (M) American Xepheline Ltd. 25 King St. W., Rm. 2530 Toronto, Ont., Canada de FELICE. Ralph (D) 28 Shore Cliff PI. Great Xeck, L. 1.. X. Y. (.'\bels. Wasserberg & Co.) DEIGXAX. Charles J. (Sl) .~05 Burkey Ave., Reynoldsburg. Ohio (Cla)'Craft Co.) DEIRO. John H. (E) Xorris-Thermador Corp. 5215 Boyle Ave., Los Angeles, Calif. DE LA ROY, Hans (W) Delco Radio Div. General Motors Corp. Kokomo, Ind. DELAWARE CLAY CO. (Homer \Y. Wilson) Box 352 Delaware. Ohio de LEEl'W, Peter Eisenberg & Co., Inc. Central Post Office Box 323 Tokyo. Japan DELGADO, Cyril B. (G) Tlae Glass Industry 55 W. 42nd St.. New York 36, N. Y. DeLONG, Hermon W., III (G) 67 Main St., Dansville, N. Y. '(Department of Public Works) DEMA1SON. R. J. (R) Quigley Co., Inc., 415 Madison .-\"e. New York 17, N. Y. DeMARIA. Vincent C. (G) Sylvania Electric Products. Inc. Box 6, Bayside, K. Y. DEMUTH GLASS WORKS, INC. (George F. Young) Box 629 ParkerSburg. W. Va. DENISON ENGINEERING CO., THE (W. C. Denison) 1160 Dublin Rd. Columbus 16, Ohio DENISON, George W. (SF) Ohio Clay Co., Box 1776 Clevehind 5, Ohio DENISOK. John C., Jr. (G) John C. Denison & Son Co., Box 63 Rochester, Pa. DENISON, Korman E. (S) Ohio Clay Co., Box 1776 Cleveland 5, Ohio DENISON, W. C. (M) The Denison Engineering Co. 1160 Dublin Rd., Columbus 16, Ohio DEl\MAN. Cedric E. (S) Great Bend Brick & Tile Co., Inc. Box 53, Great Bend, Kans. de PABLO, Liberto Ohio State l'ni"ersity Lord Hall, Rm. 113 Columbus 10. Ohio DE PIOLEXC. Gerard (X) Saint Gobain. Inc. 500 Fifth Ave .. Xew York 36, K. Y. dePROSSE. Victor A. (EI) 2164 Arthur Aye . Lakewood 7. Ohio (Ferro Corp.) DeREMER, John W. (Rl) 501 Arizona Dr. New Kensington, Pa. (American Window Glass Co.) DERGE, Gerhard (X) Carnegie Institute of Technology Pittsburgh 13. Pa. DERIKGER, W. A. (EFI) A. O. Smith Corp. 3533 N. 27th St., Milwaukee 1, Wisc. deROl'X, Juan Ramon (I) Box 1486, Panama. Rep. of Panama (Panama Clay Products Co.. 1nc.) DERR, Robert H. (W) Certain-Teed Products Corp. 204 Park PI., Pittsburgh 9, Pa. DerSARKISSIAK, Michael Gasport. K. Y. DESAIX, Herbert A. (51) 122 Jefferson Park Dr. Huntington, W. Va. (Barboursyille Clay Mfg. Co.) DESEKKE, Claude M. (S) Cote de I'Eglise Boischatel, Co. Montmorency, Que., Canada (Citadel Brick Ltd.) DESMARQCEST, Louis Institut de Ceramique Francaise 6 Grande-Rue Senes (S. & 0.), France DETAMORE, Walter A. (S) Barium Reduction Corp. South Charleston 3, W. Va. DEURVORST, F. B. M. Het Zonnehuis, Terborg. Holland (Koninklijke Fabrieken Diepenbrock & Reigers N. V.) DEUTSCHE GLASTECHNISCHE GESELLSCHAFT Untermainkai 12 Frankfurt A. M., Germany DEUTSCHE KERAMISCHE GESELLSCHAFT Reuterstrasse 235 Bonn/Rhein. Germany DECTSCHER, Jerome S. (SI) R.R. I, Box 938. 4199 Temescal A,e. Norco. Calif. (Maybow. Inc.) DeVILBISS CO. (E. F. Frey) Toledo I, Ohio de VILLE, Ralph W. (I) Harvard University Graduate School of Business Soldiers Field, Boston 63, Mass. DEVLIN. James F. (ElI) 1523 E. 33rd St., Baltimore 18, Md. (Pemco Corp.) DeVOE, Charles F. (G) 38 W. Fourth St., Corning, N. Y. (Corning Glass Works) DeVRIES, Robert C. (B) 2012 Hudson St., Schenectady, N. Y. (General Electric Co.) DEW, Robert].. Jr. (B) Ceram-Chem. Research Lab. Unh'ersity of Tampa, Tampa, Fla. DEWEY. B. F. (W) 42 Summit St. LeRoy, N. Y. (Lapp Insulator Co.) DEWEY. John L. (R) Reynolds Metals Co. Box 191. Sheffield, Ala. de WYS, E. Christiaan (B) Chelsea Dr. R. R. 2 Gram'i1le Heights. Ohio (Owens-Corning Fiberglas Corp.) DEXHEIMER, E. C. (E) 917 Country Club Drive St. Louis 21, Mo. DEYO. R. Daniel (R) 104 Dogwood, Park Forest, Ill. (United States Steel Corp.) DIAMOND ALKALI CO. (L. T. Welshans) Cement-Coke Div. 300 Union Commerce Bldg. Cleveland 14, Ohio DIAMOND, Grant S. (RFI) Electro Refractories & Abrasives CorD 344 Delaware Ave. Buffalo 2, N. Y DIAMOND, Jacob J. (B) Kational Bureau of Standards Conn. Ave. & Van Ness St., N. W. Washington 25, D. C. DIAZ, Jose J. (I) Fabrica l\acional de Loza de Penco S. A. Box 13. Penco, Chile di BEXEDETTO, Bernard Box 847. Alfred. N. Y. DICK. Clarence H. (G) 1013 Gordon St., Natrona Heights, Pa. (Pittsburgh Plate Glass Co.) ROSTER 25 I\. ., ..1..... " i I I DICK, William 0., Jr. 37 Meadow Brook Apts. Corning, K. Y. DICKAS, Charles H. (E) 1524 Sunset Rd., Chattanooga, Tenn. (Samuel Stamping & Enameling Co.) KENS' H. A. Nilsen Porcelains (Aust.) Pty. Ltd. 221 Separation St. Korthcote, Victoria, Australia DICKEY, Herbert R. (5) 26 Regent St. St. Thomas, Ont., Canada (Canada Vitrified Products, Ltu.) DICKEY, John M., Jr. (51) Hanley Co., Summerville, Pa. DIETERT, Harry W. (B) Harry W. Dietert Co. 1214 Virginia Dr., Kern'iIle, Texas DIETRICH, Waldemar F. (B) 1209 Potomac St.. X. W. Washington 7, D. C. (l'nited States Bureau of Mines) DIETTERLE, Edwin W. (WI) 3834 Monteith Dr. Los Angeles 43, Calif. (Ferro Corp.) DIETZ, Earl D. . 583 Hess Rd., Columbus 10. Ohio DIETZEL, Adolf Max-Planck-Institut fur Silikatforschung, \Vurzburg, Germany Keunerplatz 2 DiLAZZARO. John F. 4015 34th 5 .. Seattle 8, Wash. DILLARD, William F., Jr, (5) 2125 E. Side Court, Augusta, Ga. (Merry Bros. Brick & Tile Co.) DILLENDER, Richard D., Jr. (W) 8 Sunnybrook Trail Signal Mountain, Tenn. (American Lava Corp.) DILLIARD, Paul D. (GI) 1313 E. Wheeling St., Lancaster, Ohio (AnChOr Hocking Glass Corp.) LIKGHAM, Robert P. (W) 2207 Cheyenne St., Golden, Colo. (Coors Porcelain Co.) DILLON, C. L. (G) Latchford Marble Glass Co. Box 71707, Los Angeles I, Calif. DILLOK, Zale (W) 56 Riverlawn Dr.. Fair Haven, N. J. (Atlantic Tile Mfg. Co.) DIKGLEDINE, H. F. (5) National Sewer Pipe Ltd. 330 Wentworth St., N. Hamilton, Ont., Canada DIXGLER, Edward L., Jr. (R) Carborundum Co., Refractories Div. Niagara Falls, X. Y. DIKGWALL, Andrew (G) 588 Grove St., t:pper Montclair, N. J. (Consulting Scientist) DINGWALL, Andrew G. F. (G) 588 Gro"e St., Cpper Montclair, N. J. (R C A Victor) DIPPELL. L. V. (R\ 1407 Cherry Lawn :'.ve. R. R. 3. Owosso. Mich. (Mid-West :\brasiYe Co.) DIRKSEN, A. J. (G) American Potash & Chemical Corp. 99 Park Ave., New York 16, K. Y. DIRLAM. Arthur C. (G) 20f: X. Talley A,e . Muncie, Ind. I Ball Bros. Co.. Inc.) DISTILLATOR, Philip R. (W) Jackson Vitrified China Co. 2 West St., Pelham Manor 65, N. Y. DITH RIDGE. Edward H. (E) Richmond Radiator Co., Monaca, Pa. _ ON, Anna Lane (D) IS X. Fourth St., Burlington, Iowa ON, Gene (R) Kyanite Mininl1 Corp., Cullen, Va. DIXON, JOSEPH, CRUCIBLE CO. (W. R. Wyckoff\ 167 Wayne St. Jersey City 3, N. ]. VOL. 35, No. 10 (1956) DJAJOES, S. Klitren Kidul GK 6/298 Jogjakarta, Java, Indonesia DLUGOZIMA, W. R. (WI) R. R. 19, SoutA View Dr. East Liverpool, Ohio (Patterson Foundry & Machine Co.) DODD, Charles M. (SFI) Dept. of Ceramic Engineering Iowa State College, Ames, Iowa DODGE, Alfred W. (G) Hazel-Atlas-Glass Co., 126 Market St. Zanesville, Ohio DOERSELX, Kenneth P. (M) Silk City Tool & Machine Works 221 Seventh Ave., Hawthorne, X. J. DOLL, Charles E. (W) Mount Clemens Potter)' Co. Mount Clemens, Mich. DOLPH, James L. (E) 1017 Vermont A'e., Apt. 8 Pittsburgb 34, Pa. I Ingram-Richardson Mfg. Co.) DOMINION MINERALS DIV., RIVERTON LIME & STONE CO., INC. (V. V. Kelse)') Piney River, Va. DONAHEY, John W. (GI) Box 191, Paoli, Pa. (Foote Mineral Co.) DONEN, I. Consolidated Glass Works Ltd, Box 562, Germiston Transvaal, South Africa DOXEY. Louis M. (B) Mackin Lane, R. R. 17 Knoxville, Tenn. (Oak Ridge National Lab.) DONLEY, John C. Ohio State University Engineering Experiment Station Columbus 10, Ohio DONXEXWIRTH, A. L. (Rn Carborundum Co., Falconer, N. Y. DORA, Joseph C. (E) 3246 West 62nd PI., Chicago, 111. (Crane Co.) DORAK, Robert F. (GI) Sylvania Electric Products, Inc. Cottage PI., Mineola, N, Y. DORF, Arthur L. 331 W. College Ave., State College, Pa. DORN, Alvah J. (G) 4 Oakwood Dr., Box 152 Corning, K. Y. (Corning Glass Works) DORN, G. Neal (SI) 1015 Kemp Ave., Ironton, Ohio (Carlyle Tile Co.) DORSETT, O. A. (W) Knox Porcelain Corp., Knoxville, Tenn. DORSEY, Baird L. (R) 300 Walnut Rd., Pittsburgh 2, Pa. (Jones & Laughlin Steel Corp.) DORSEY, Jobn J. (WI) P. R. Mallory & Co., Inc. 3029 E. Washington St. Indianapolis 6, Ind. DOTY, Henry S. (R) Commercialores, Inc. 39 Cortlandt St., Kew York 7, N. Y. DOUGHERTY, Leon A. (W) 370 Korth St., Sun Prairie, Wise. (Wisconsin Porcelain Co.) DOl'GHERTY, Robert W. (S) Lindberg Engineering Co. Box 306. Kewton Square, Pa. DOUGHERTY, W. E. (MF) 1625 Barr Ave., Pittsburgh 5, Pa. (0. Hommel Co.) DOUGLAS, Edward A. (E) 104 Gainsborough, Apt. 2B Boston, Mass. (Bettinger Corp.) DOUGLAS, Richmond Douglas Firebrick Co., Ltd. DaIry, Ayrshire, Scotland DOUGLAS, R. W. Societ)' of Glass Technology "Thornton," Hallam Gate Rd Sheffield 10, England DOWLIKG, Robert F. (G) American Optical Co. Southbridge, Mass. DOW::\S, Charles D. (W) Columbian Carbon Co. Mapico Color Div. 601 Cass St., Trenton 10, K. J. DRAKE, M. Ellis (D) Alfred University, Alfred, N. Y. DRAKENFELD, B. F. & CO. (Scott J. Courtney) 45-47 Park PI. New York i, K. Y. DRAKER, Harry C. (M) 38600 Courtland Dr., Willoughby, Ohio (Harshaw Chemical Co.) DRAMMENS GLASSVERK (Ragnar Tanberg) Drammen, Korwar DRAPER, PerT)' E. CW) Mansfield Sanitary Potter)', Inc. Perrysville, Ohio DRECHSEL. Helmut E. (G) Smith Kline & French Labs. 153U Spring Garden St. Philadelphia I. Pa. DRESSLER, Philip (MF!) Swindell-Dressler Corp., Box 1888 Pittsburgh 30, Pa. DREYLING, Lewis J. (R) 229 Milltown Rd., MilIto\\'t1, ~. ,T. (Quigley Co., Inc.) DROUHARD, W. J. (WI) Mansfield Sanitary Pottery, Inc. Perrysville, Ohio DRlTKER. Julius Farbenfabriken Bayer Aktiengesellschaft, 7-9, Rheinuferstr. Krefeld-Verdingen. Germany DRl'MMOND, Charles H. (G) 1639 Cass Rd., Maumee, Ohio (Owens-Illinois) DReMMOKD, W. W. (G) 214 Crim St., Bowling Green, Ohio (Libbe)'-Owens-Ford Glass Co.) Dt:BER, William Box 1318, Georgia Tech., Atlanta. Ga DUBLER, Robert H. (W) Crane-Pacific Co. 330 \\'. Citrus St., Colton, Calif. DuBOIS. H. B. (MFI) Golding-Keene Co. 1401 Kew York A,e., Trenton, N. J DUCKWORTH, Winston (BFI) Battelle Memorial Institute 505 King Ave., Columbus 1, Ohio DUDDING, B. P. International Commission on Gla.. Research Laboratories General Electric Co., Ltd. Wembley, Middlesex, Englanu DLE, Herbert J. (W) 11 Scoles Ave., Clifton, K. J. (St. Joseph Lead Co.) DeECKER. Heyman C. (Gl 28927 Emerson Way, Inkster. :Mich. I Ford Motor Co.) Dl'EYEL, Charles 0 .. Jr. (G J American Thermos Products Co. Thermos Ave., Korwich. Conn. DeEY. Robert K. (S) Southern Lightweight Aggregate Corp. Box 9138, Richmond 27, Va. Dl'FF. R. D. (G) Owens-Illinois Box 1035. Toledo 1, Ohio DUFFY, J. P. (S) Stillwater Clay Products Co. Lock Drawer 32, Uhrichsville. Ohio DU FRESNE, Robert S. (R) 3125 Fairmount, La Crescenta. Calif. (Gladding, McBean & Co.) DUGAN, Robert T. Box 1844, Midland, Texas ROSTER 2; i ~ r" 1-4 r I I .,_. , ,. I~ 1f DUGGAX, ]. ]. (G) i" Walsh Refractories Corp. 101 Ferry St., St. Louis 7, Mo. f:~.',. DUHRSSEN, Alfred (D) YO::.,: Commercial Decal, Inc. ~'t.; :..". Box KE, 759, John East Liverpool, J. (W) Ohio r:' '.~~,. Box 33, Saxonburg, Pa. (Du-Co Ceramics Co.) DULBERG, Irving (R) 1,~, . 254 N. Alleghen)' St., Bellefonte, Pa. ," (J. H. France Refractories Co.) :. DULIN, Francis H. t: 7728 Westmoreland Dr., Sarasota, Fla. ~", DUNBECK, Norman ]. (R) """ International Minerals & , ~ Chemical Corp. i 20 N. Wacker Dr., Chicago 6, III. " DUNCAN,]. Earle (G) f, Pittsburgh Plate Glass Co. , Research Lab., Creighton, Pa. Dt.'XCAl". Russell F. (B) 209 Franklin Dr., Berea, Ohio ( Ferro Corp.) DUNCOMBE, George H., Jr. (SF) 150 E. Frambes Ave., Columbus 1, Ohio (Evans Brick Co.) Dl:XGAX. Robert H. (BI) 6850 !\feadowbrook Manor St. Louis Park, Minn. (M inneapoli,.-Honeywell Reg. Co.) DCXX, H. E. (M) Suite 206, 300 Mt. Lebanon Blvd. Pittsburgh 34, Pa. (Vanadium Corp. of America) DUXX, John P. (G) Corning Glass Works, Corning, X. Y. DUNN. Peter E. (G) Rauland Corp., 4245 l". Knox ..\Ye. Chicago 41, III. DUNNICAN, Ward G. (G) 277 E. Seventh St., Clifton, X. ]. , (Becton, Dickinson & Co.) :,' .PLIX. V. ] .. Jr. (BFI) , 300 North Ave., Fanwood, N. J. (Babcock & Wilcox Co.) du PONT, E. I., de NEMOURS &- CO., INC. (John M. Olsen) Electrochemicals Dept. Wilmington 98, Del. Dl'RHAM. Carl T. (E) 742 Windsor Ave., S. W. Roanoke. Va. (General Electric Co.) DVRST. William A. (M) 209 Madison St., St. Marys, Pac (Stackpole Carbon Co.) DUWEZ, Pol (B) California Inst. of Technology Pasadena, Calif. DYKES. Man'in W. (G) Van Dyne Quartz Works Box 148, St. Charles. Ill. DYRE, Warren T. (E) 317 Estaugh A,e.. Haddonfield. X. ]. (Vni"ersal-Rundle Corp.) DZFRA, Edward ]. (B) American Optical Co. Research Center Southbridge. Mass. E EAGLE. J. Eugene (MFl) 3202 McShane Wa)', Baltimore 22, Md. (Pemco Corp.) EAGLE-PICHER CO. (D. R. Carter) American Bldg., Cincinnati I, Ohio eEARHART, William H. (G) RCA Victor, Engineering Dept. S. Adams St., Marion, Ind. L, Fred C. Box 84, Broadalbin, N. Y. EARL. ]. Alfred (B) 1621 S. El Molino St. Alhambra. Calif. (Consolidated Electrodyna,mics Corp.) VOL. 35, No. 10 (1956) EASTER, George ]. (RFI) Electro Refractories & Abrasives Corp. Willett Rd., Buffalo 19, N. Y, EBERSOLE, ROQ:rt A. (R) Chisholm, Boyd & White Co. 610 W. 57th St., Chicago 21, III. ECKEL, Albert R. (R) Commercialores, Inc., Clover, S. C. ECKEL, Harold A. Trinidad Clay Products, Ltd. 44, South pllay, Port of Spain Trinidad, B. W. I. ECKLEY. ]. R. (R) Aluminum Co. of America 1501 Alcoa Bldg., Pittsburgh 19, Pac ECOXOMOS, George (W) Massachusetts Institute of Technology 77 Massachusetts Ave., Rm. 20C-00I Cambridge 39., Mass. EDGAR. Albert C. (M) Edgar Plastic Kaolin Co .. Edgar, Fla. EDGAR. Clement B. (R) M. H. Detrick Co., 1620 Oli"er Bldg. Pittsburgh 22. Pa. EDGAR PLASTIC KAOLIN CO. L'\lbert C. Edgar) Edgar, Fla. EDLIl", Vernon (B) 6712 Chappel Ave.. Chicago 49. III. (Armour Research Foundation) EDWARDS, F. M. (\\") 4605 Crosby Rd .. Knoxville. Tenn. (Knox Porcelain Corp.) EDWARDS, J. B. (5) Reliance Clay Products. Box 13226 Dallas 20. Texas EGERTON, Lawson (B) Bell Telephone Labs., Inc. Murray Hill, N. ]. EHLERS. Ernest G. (B) Ohio State Vniversitv Dept. of Mineralogy. Columbus. Ohio EHLERS, G. Milton (W) Aerovox Corp., 742 Belle"ille Ave. ]\;ew Bedford, Mass. EHMAK. Roy G. (GFl) 323 E. Hamilton Ave. State College, Pa. (Pennsyh'ania State Vniversitv) EHRLICH. Raphael H. (S) . 4039 K. Central Expressway Dallas 4. Texas (Crown Brick Mfg, Co.) EICHBAVM. Barlane R. E. Bend Park. 8 May Court Red Oaks Mill, PQughkeepsie. N. Y. EIDE. Alwin C. (E) American Zinc Sales Co.. Box 327 Columhus 16. Ohio .EISEl", John B. (R) Box 27. \\'aterloo. 'Vise. (Ra)'-O-Vac Co.) EISEXBERG. Man'in fE) Montaine Corp. 2446 S. Prairie Ave.. Chicago 16, III. EISE]\;BERG. Mever (W) 64 Chester Cir'cle Xew Brunswick. X. ]. (Architectural Tiling Co.. Inc.) EISS. Roger L. Box 827, Alfred. X. Y. EITEL, Wilhelm (Bl) Dir. of Inst. of Silicate Research l:niversity of Toledo, Toledo 6, Ohio EKDAHL. W. Graydon (G) Johns-Manville Research Center Manville. N. J. EKEDAHL. ]. Charles (R) 1113 l". Raynor A,e.: Joliet. Ill. (Illinois Clay Products Co.) ELDER, ]. C. (WI) . Robertson Mfg. Co., Box 848 Trenton 5. N. J. ELECTRIC AUTO-LITE CO., SPARK PLUG DIV. (Robert Twells) Box 231, Fostoria. Ohio ELECTRO REFRACTORIES &- ABRASIVES CORP. (Grant S. Diamond) 344 Delaware Ave. Buffalo 2, N. Y. ELJER CO., Enamel-Ware Div. (L. A. Bateman) Salem, Ohio ELLARD, Earle R. eRI) 344 Clinton Ave., Tiffin, Ohio (Basic, Inc.) ELLEFSOK, B. S. (G) Sylvania Electric Products, Inc. 1740 Broadway, New York 19, K Y. ELLINGSWORTH, Martin K. 5320 Midwood Ave., Baltimore 12, Md. ELLIOTT, Amos W. (B) Covered Wagon Ranch Cloverdale, Calif. ELLIOTT, C. Franklin 3301 Pinewood Ave., Apt 41 Chattanooga, Tenn. ELLIOTT. George 3 Hillpark Gardens Edinburgh 4, Scotland (National Coal Board) ELLISOX, Henry W. (G) 169 E. Third St., Corning, K. Y. (Corning Glass Works) ELLISON, R. V,'. (R) 1551 E. Lorna Alta Dr. Altadena, Calif. (Gladding, McBean & Co.) EL!\fER. Jack T. (X) 1890 Woodland Ave. Santa Clara. Calif. ELMER, Thomas H. (Bl 219 E. Hig:, St., Painted Post, K. Y. on(Corning Glass Works") ELOSl'A. Bernardo Ladrillera Monterre)', S. A. Bex 360, Monterrey, K. L., Mexico ELSTOK, Keith (WI) 117 Somerset Ave., Pittsfield. Mass. (General Electric Co.) ELY, William G. (G) Pittsburgh Plate Glass Co. 1 Gateway Center, Pittsburgh 22, Pa. EMA]\;VEL, 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 Ave., Brackenridge, Pa. (Pittsburgh Plate Glass Co.) EMISON, M. Hershel (G) Corning Glass Works Charleroi Div., Charleroi, Pa. EMLEY, William S. (W) W. Maitland Lane, R. R. 3 New Castle, Pa. (Shenango China, Inc.) EMMERICH. Liberata (G) Pennsylvania State University Mineral Industries Librar)' University Park, Pa. EMRICH, Allen H. 1799 Franklin Ave., Columbus 5, Ohio EMRICH, Barry R. (R]I) 501 Quincy X. E .. Apt. E Albuquerque. X. M. (Kaiser Aluminum & Chemical Corp.) EMRICH, Emerson W. (MI) R. T. Vanderbilt L:tboratories East Norwalk. Conn. EMRICH. Harold W. (SI) 1560 S. Krameria. DeD\er. Colo. I Denver Brick & Pipe Co.) EKBERG. Christer Tegellaboratoriet (Brick Laboratory) Drottning Kristinas vag 45 Stockholm O. Sweden ENGLERT, William ]. (G) 304 Velnon St., Xew Kensington, Pac (Pittsburgh Plate Glass Co.) ENGLISH CHINA CLAYS SALES CORP. 551 Fifth Ave., New York 17, N. Y. E]\;HUS, Hans Gosta Aktiebolaget Malardalens Tegelbruk Ericsbergsgatan 27 Stockholm 3, Sweden ROSTER 29 E!'\LOE, Scrouv W. (M) Dillsb(lro, N. C. (Harris Clay Co.) EXLOE. Scroop W., Jr. (M) Harris Clay Co., Spruce Pine. X. C. E!'\OCH, Charles R. (R) 20 Spring Ln., Bridgep:>:t, Pa. I Refractory Specialt) Co.) S, W. Kenneth 607 Rntledge Ave., Charleston, S. C. EPSTEIX, Edward, Jr. (R) Laclede-Christ) Co. Div. H. K. Porter Co. 4705 Ridgewood Ave., St. Louis, Mo. ERARD, Edward (G) Vidrio Keutro. S. A. Prolongacion Calle ue la Rosa Ko. 9, Atzcapotzalco. D. F., Mexico ERICKSO~, A. Alfreu (G) 84 Pershing St., Corning. K. Y. (Corning Glass Works) ERICKSON, Allen J. (G) 4239 E. 74th St., Seattle 15, \\'ash. (Korthwestern Glass Co.) ERIE RESISTOR CORP. (Bobby L. Joyn'r) 644 ,"y'. 12th St., Erie. Pa. ERNST, Walter S. (M) 2728 E. Fifth Ave . Knoxville. Tenn. (Volunteer Portland Cement Co.) ERSLEY, Emmett J. (GJ) R. R. 1. Box 352-B 24585 Wavman St .. Xewhall. Calif. (Thatcher 'Glass Mfg. Co.) ERVIN. Guy, Jr. (B) Research Laborator). Norton Co ~'orcester, Mass. ERWIN, Lee R. (G) 419 Tocino, Duarte, Calif. (Carrier Corp.) ERZEN, Frank C. (E) 731 S. Greenberry Dr. West Covina, Calif, (Bulwark Corp. of America) ENBURG. Robert L., II lore.,ille. Texas LSTYK, Willard A. c/o American Embassy New Delhi (Mail Room) Department of State Washington 25, D. C. ESTES, Joseph F. (W) Haeger Potteries, Inc. 7 Mairlen Lane. Dundee, Ill. ETHEREDGE, Otis K. (M) Box 252. Gordon. Ga. (Southern Oays, Inc.) ETRIS. Samuel F. (R) 100 W. Kippon St. Philadelphia 19, Pa. (American Society for Testing Materials) EUBAKK, William R. (B) 2301 Hudson Rd., St. Paul 6, Minn. (Minnesota Mining & Mfg. Co.) EUBANKS, Alfred G. (E) 10802 Stella Court, Kensington, Md. (National Bureau of Standarrls) EUSNER, George R. (R) 102S Summitt St . McKeesport, Pa. (United States Steel Corp.) EVA!'\S, Charles E. (M) 2401 Korthglen Dr. Columbus 24, Ohio (Titanium Alloy Mfg. Dh. Kational Lead Co.) EVANS, Daniel Owen (G) Hillcrest & Linden A,e.. Mapleview Charleroi, Pa. (Corning Glass Works) EVAKS, Edward J. Welsh Tinplate & _ Metal anell St Y, amCaprminargtbCe,o,.~hLirtde.. Box 14 Eng!and S LEAD CORP. (Fred Leake. Jr.) Box 1467, Charleston 25. W. Va. EVANS PIPE CO. (T. J. Evans, III) Uhrichsville, Ohio VOL. 35, No. 10 (1956) EVA);S, Richaru F. (W) Iroquois China Co. , 2320 Milton Ave. S)racuse 9. N. Y. EVANS, Ross M. (S) 604 E. Mechanic St., Brazil, Ind. (Arketex Cerartnc Corp.) EVAKS. T. J .. III (S) Evans Pipe Co.. Uhrichsville, Ohio EVAKS. W. Gordon Geo. L. Ashworth & Bros. Ltd. Broad Street ~'orks Hanle)', Stoke-on-Trent. England EVANS, William W. (SI) 506 E. Iron Ave.. Dover, Ohio (Robinson CIa)' Product Co.) EVERHART. J. O. (SFI) Engineering Experiment Station Ohio State V niversity Columbus 10, Ohio EWALD. Merwin R. (M) Box 19A. R. R: 1. Monclova. Ohio (Surface Combustion Corp.) EW]!\G, Robert F. (WI) Mansfield Sanitarv Potterv Perrvsville, Ohio . - EXOLON CO. (Harvey J. Robillard) 1000 E. Kiagara St. Tonawanda, N. Y. EYERLY. George B. (S) Mah'ern Brick & Tile Co., Box 415 Malvern. Ark. F FABER, William M. 404 W. White, Champaign. Ill. FABIAXIC. W. L. (RFI) Laclede-Christy Co. Div. H. K. Porter Co. 4705 Ridgewood Ave. St. Louis 16. Mo. FABRICA de LADRILLOS INDUSTRIALES, y REFRACTARIOS, S. A. (Salvador Orlriozola Gomez) Apartado 390. Monterrey. N. L., Mexico FABRICA de PORCELANA da VISTA ALEGRE, LDA. Gabinete a Lab. Central de Estudos Candal, Vila Kova de Gaia, Portugal FACKLER, Ernst G. Apartado Aereo 6108 Bogota, Colombia (Vidrio S. A.) FACKT, George P. (SF) 408 Paseo rlel Mar. Box 878 Palo~ Verrles E~tate<, Calif. (Redonrlo Tile Co .. Ltd.) FADANELLI, Louis H. 1132 S. California Ave., Chicago. Ill. FAGG, Leo W, (E) Johnson-Fagg Engineering Co. Box 7157, Tulsa, Okla. FAHREl\BRlTCK, William O. (RI) R.R. I. Box 95, Tiffin, Ohio (Sterl;,,!?: Grinrling Wheel Co.) FAILMEZGER, Howard (WFI) Victor Insulators Div., 1-T -E Circuit Breaker Co, Maple Ave., Victor, N. Y. FAIN. Charles C. 789 Glendalyn Ave., Spartanburg, S. C. FAIRFACTS CO., (J. Ryan Smith) Fairfacts St., Trenton 8. N. J. FALCOKER, Donald P. (R) 1018 f\Japle Ave., Evan,ton. Ill. (Sales Engineer) FALLO~, Frank J. (WI) 29 Felton, West I'\ewton, Mass. (Raytheon Manufacturing Co.) FALTER, Arthur H. (R) 8635 Jacob PI., Niagara Falls, N. Y. (Carborunrlum Co.) FARBER. Louis G. (D}) Ceramics Monthly, 4175 K. High St. Columbus 14, Ohio FARGO, Jarvis J. (G) 28 Wilson St., Corning, 1\. Y. (Corning Glass Works) FARKAS, Howard (M) Linited States Stoneware Co. 60 E. 42nd St., l\ew York 17, K. Y. FARXELL, James H. (W) Louthan ~1anufacturing Co. East Liverpool. Ohio FARR, Archie E. (E) O. Hommel Co., Box 475 Pittsburgh 30, Pa. F:\RROW, Lewis C. (E) R. R. I, Clyde, Ohio (Whirlpool Seeger Corp.) FASOLD. G. A. (E) 7329 Bernard A,e., Cincinn~ti 31, Ohio (Philip Carey Mfg. Co.) F-AtTHOX-BAt'DOT, J. B. Ets. Fauchon,Baudot 21. Ave. de Tourville. Paris 7. France FACLKXER. Karl B. (G) 179 Victory H wy.. R.R. 2 Painted Po~t, X. Y. FAt'ST, Ernest H .. Jr. (RI) 58 Klarman Dr., Mt. Carmel, Conn. I American Refractories & Crucible Corp. I FAeST, George T. (B) 9907 Capitol View Ave. Siher Spring, Md. (U. S. Geological Sun'ey) FAY. Wayne X. (RI) 707 Knox Rd .. Villanova. Pa. (General Refractories Co.) FEAGIN, R. C. (BI) Austenal. Inc. 224 E. 39th St., Kew York 16. N. Y. FEASTER, Richard Y. 5608 Cnhersit) Way, Apt. 5 Seattle 5. ~ash. FEDERAL GLASS CO, (Henry H. Blau) 515 E. I,,"i, !he. Columbu< 7. Ohio FEDERAL SEABOARD TERRA COTTA CORP. (0. E. Mathiasen) Box 301, Perth Amboy, N. J. FEDOCK, Michael P. (R) 4214 Ashwood Dr., N. W. Canton 8, Ohio (Republic Steel Corp.) FEIGELSOK. Robert S. 720 Techwood Dr., Atlanta. Ga. FEJ!'\BLOOM, David T. 3459 Park Ave., Wantagh, L. J.. X. \', FELD, Philip c/o Borenstein 137-09 70th Rd .. Flushing. K. Y. FELDMAN, Gail H. (GJ) 43 Villa Ct., Hempstead, N. Y. (United States Xav)') FELKER. Ernest (W) Box 33. 8408 Summer Rei. Macedonia. Ohio (Ferro Corp.) FELLOWS. R. L. (EF}) 748 N. Kensington Ave., La Gralll!e, III. (Century Vitreous Enameling Co) FELS. C. G, (RI) 11 DeForrest Ave. !'\orth Plainfield, !'\. J, (Fels Refractories. Inc.) FELTOK, Ernest 990 1\. Park A,e., Pomona, C"lif FEl\ERTY, M. J. (B) Aluminum Co. of Canada An'ida, Que., Canada FEXITY, Robert D. (W) Minneapolis-Honeywell Research Center 500 Washington Ave. S., Hopkins, Minn. FENSTERM."CHER, John E. (RJ) 302 Cherry, Clearfield. Pa. (Harbison-~'alkerRefractori~~ Co. I FENTON, Walter M. (E) Lithium Corp. of America, Inc, 2560 Rand Tower, Minneapolis 2, Minn. FENTZKE. A. Daniel (R) 840 Hickman Rd .. Augusta, Ga, (Babcock & Wilcox Co.) ROSTER 31 t t ~, FERGUSOK, Donald Box 929, Alfred, N. Y. FERGUSON, Douglas J. (D) Pigeon Forge Pottery PiKeon Forge, Tenn. FERGUSON, D. Robert, III (R) 401 Vine St., East Liverpool, Ohio (Crescent Brick Co., Inc.) GUSOK, Robert F. (G) 1765 Caleb Dr., Zanesville, Ohio (Hazel-.-\t1as Glass Co.) FERGUSON, Robert L. (S) Yankee Hill Brick Mfg. Co. 728 Stuart Bldg., Lincoln 8, Nebr. FERON, Marcel Administrateur-delegue Societe Beige de Ceramique "Ceratel" Rue d'Herchies, Baudour, Belgium FERREIRA, Laurence E. (B) \\'ilJoughby Arms, Apt. 2-C Golden, Colo. (Coors Porcelain Co.) FER RES. Daniel Vidplan S. A .. Real X o. 4415 ~Iontevjdeo. t'ruguay FERRIS BRICK CO. (R. T. Wilson) Box 188, Ferris, Texas FERRIS. Harry Philip (M) 20 Birch Dr.. Levittown, Pa. (Simonds Abrasive Co.) FERRIS. James E. I G) Hooker Electrochemical Co. Xiagara Falls. X. Y. FERRO CORP. (R. A. Weaver) 4150 E. 56th St., Cleveland 5, Ohio FERRO ENGINEERING CO. (Benjamin F. Anthony) 1400 Hanna Bldg.. Cleveland 15, Ohio FESLER, Ray T. (Wl A.A.A. Corp.. Box 815, Gadsden, Ala. FESSLER ..-\. H. (WFI) 423 S. Edgewood. Lombard, Ill. (.-\ C Spark Plug Di,., General Motors Corp.) TER, H. (R) Cia. Mexicana de Refractarios A. P. Green, S. A., Harnburgo 51 Apartado Postal 71 Bis. Mexico, D. F. FETTERLEY, Guy H. (R) Box 26, Chippawa, Ont., Canada (Norton Co.) FETZER, ~rge W. (M) 1205 17th Ave., Columbus 11, Ohio (George Fetzer Ceramic Supplies) FEYLING, Claus A. Eie StenttlSifabrik Egersund, Norway FIBERGLAS CANADA, LTD. (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, Ernest. Jr. (5) 2315 Elm St., Owensboro. Ky. (Owensboro Sewer Pipe Co.) FILES, John A. (E) Radio Corp. of America Tube Div'ision 3301 Adams. Marion, Ind. FILIPPI. Hugo (SF) JIlinois Brick Co., Room 2240 228 K. LaSalle St., Chicago I. Ill. FILLMORE, Charles L. (WI) Globe-Union, Inc. 900 E. Keefe Ave., Milwaukee 1, Wisc. FINDLAY CLAY PRODUCTS CO. (R. S. Craft) Washington, Pa. FINLAY, G. R. (R) 2231 Waters Ave. Niagara Falls, Ont., Canada (Norton Co.) NLAYSEN, John R. School of Ceramics Rutgers University New Brunswick, N. J. VOL. 35, No. 10 (19.'>6) FIKKEY, Edwin L. (S) Claycraft 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. \Vorcester 9, Mass. (Norton Co.) FISCHER, Peter R. eJ) Goethestr. 34 Wuelfrath/Rhld., Germany FISCHER, Robert J. (W) 18 Fairway A,e. West Long Branch, X. J. (Signal Corps Engin~ering Labs.) FISH, E. Thomas (RJJ) Great Lakes Carbon Corp. 58th St. & Pine Ave. Niagara Falls, N. Y. FISHEL, Waite P.' (B) R. R. 2. Pleasant City. Ohio FISHER, Eugene A. (W) Electric Auto-Lite Co. Spark Plug Div., Fostoria, Ohio FISHER, Henry C. (R) Norton Co., I New Bond St. v.'orcester 6, Mass. FISHER, Joseph R. (W) Bell Telephone Labs., Rnl 1.'\3~1 Murray Hill, N. J FISHER. Richard G. Ii Wells St. Hornell. X. Y FISHER, William V. (Gl Anchor Hocking Gla,s Cor!, Lancaster, Ohio FISHKIK. Henry W. (W, 233 Mantua St.. Park Forest. Ill. (Ferro Corp.) FISHLEY, William S. (W) Sparta Ceramic Co. East Sparta. Ohio FISH-SCHURMAN CORP. (Murray Yawitz) iO Portman R,] New Rochelle, K. Y. FITZGERALD, Alex E. (RI) A-4 Avon Apts., Narberth. Pa. IGeneral Refractories Co.) FITZGERALD, J. Vincent (W) Tile Council of Am. Research Center School of Ceramic" Rutgers Univ-ersity New Brunswick, N . .T. FITZPATRICK. William D. \ R) 100Q Vermont Ave.. Apt. 2 Pittsburgh 34, Pa. (Harbison-\Valker Refractor;es Co.) FITZSIMMONS, Elmer S. IRJ) Chern. & Abra<l\'es Research Dept. Cincinnati MilIi'lg Machine Co. Cincinnati 9, Ohio FITZSIMMONS, Robert F. (\\') R. R. I, Oakfield. K. Y. (Lapp Insulator Co., Inc.) FIX. Frank A. (X) Posey Iron V\'ork. Inc. Lancaster, Pa. FIX. William G. (M) Carborundum Co .. Globar Di,. 3335 W. 47th St .. Chicago 32. Ill. FLEISCHER, Arthur (B) !\:ickel Cadmium Battery Corp. Box 349, Easthampton. Mas. FLEMING, A. P. M. Metropolitan Vickers Electrical Co., Ltd. Trafford Park. Manchester 1i, England FLEMING. Charles A. (EI' 3613 General Bates Dr. Nash\'ille 4, Tenn. (Pemco Corp.) FLEMI~G, David M. (SJ) 322 E. Irwin A,e., State College. Pa. (Glen-Gery Shale Brick Corp.) FLEMI~G, Raymond C.. Jr. eM) 3113 Hende~son Cr. W. Lakeland, Fla. (I nternat;onal Minerah & Chemical Corp. I FLEMIKG, Thomas T. (R) Frank Samuel & Co., Inc. 2200 Lincoln-Liberty Bldg. Philadelphia 7, Pa. FLEXOK, John D. (R) 3440 Gallatin Rd., Toledo, Ohio ( Owens-Illinois) FLICK, Fulton B. (R) Brown, Critchlow, Flick & Peckham 1706 First Kational Bank Bldg. Pittsburgh 22, Pa. FLIXT. E. P. (BI) Arthur D. Little, Inc. 30 Memorial Dr., Cambridge 42, Mass. FLIXT, Francis C. (GFI) Hazel-Atlas Glass Co. 15th & Jacobs Sts., Wheeling. \\'. Va. FLOREKCE. Jack M. (G) Kimble Glass Co. Box 1035-1036, Toledo 1. Ohio FLORIDA TILE INDUSTRIES, INC. (J ames \\'. Sikes) 608 Prospect St. Box 451, Lakeland, Fla. FLOYD, William A. Box 4360. State College Sta. Raleigh. X. C. FLC, Eldon Bruce (W) 1533 Crooks Rd., Royal Oak, Mich. (Ceramic Di,. Champion Spark Plug Co). FLYN~, Paul H. (B) International Nickel Co.. Inc. Bayonne \\'orks, Bayonne, N. J. FOGELBERG, Sven \\' ebb's Crystal Glass Co.. Ltd. Dennis Glassworks Stourbridge, England FOLKERS, Charles L. (RJ) <IIi Park A\'e., Ackley, Iowa FOKTANA, Eugene H. (G) Box 259, Corning, N. Y. (Corning Glass Works) FO~VIELLE. Frank P., Jr. (W1) Dentist Supply Co. of ~ew York 500 W. College Ave., York, Pa. FOOTE MINERAL CO. (L. G. Bliss) 18 W. Chelten Ave. Philadelphia 44, Pa. FORAKER, Robert W. (EI) Titanium Pigment Corp. 99 Hudson St., New York 13, N. Y. FORBES, Charles C. (G) Allen B. Du Mont Labs. 750 Bloomfield Ave., Clifton, 1\. J. FORBES, Lewis J-B. (G) Pilkington Bros. (Canada) Ltd. 165 Bloor St., E. Toronto 5, Ont., Canada FORD, Fred J. (S) Box 395, San Francisco, Calif. ( Consultant) FORD. George D. (WI) 2136 Wilmer St., Zane"'i!le, Ohio (Mosa;c Tile Co.) FORD, Walter D. (GJ) Pittsburgh Corning Corp. Research & De,'elopment Di,. Port Allegany. Pa. FORD. William D. (E) 1704 W. 54th St., La Grange. Ill. (Sears Roebuck & Co.) FORDS PORCELAIN WORKS (I. A. Hansen) Perth Amboy, N. J. FORESMAN, Grover C. (G) 212 Cedar St.. Corning, K. Y. ICorning Glass Works) FORJAZ. Xicolau Porto Ferreira, C. P. Sao Paulo, Brazil FORKKER, Henry R. (XI) 201 Fairview Ave" Blacksburg, Va. (Virginia Polytechnic Institute) FORLAKD, Tormod (Gl Penns)'l\'ania State l~ni"ersity Dept. of Ceramic Technolog)' l'ni\'ersity Park, Pa. ROSTER 33 , ~ FORMAK, S}'dne}' A. (B) Dept. of Agriculture, Chemistry Di\'. Science Service Ottawa, ant., Canada FORK lA, Robert F. (En 2326 K. 60th St., Seattle, Wash. (United States Air Force) RTH, Robert D. (E) 1369 N. W. Circle Dr. Kankakee, Ill. (Florence Stove Co.) FOSDICK, Marion L. (DF) 100 N. Main St., Alfred, N. Y. FOSTER-FORBES GLASS CO. (F. R. Motsch) Marion, Ind. FOSTER, H. B. (S) Brick & Tile Service, Inc. Box 2935, Greensboro, K. C. FOSTER, Luther M. (B) Aluminum Co. of America Alcoa Research Labs. Box 772, New Kensington, Pa. FOSTER, Wilder D. (B) 5405 Bower 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) Moundsville, W. Va. FOURATT, Robert F. (R) 113 Willow Dr., Little Silver, K. J. (Carborundum Co.) FOX, Charles S. (R) Aluminum Co. of America 3615 Olive S., St. Louis 8, Mo. FOX, Marilyn Box 161. Alfred, N. Y. FRAD. William A. (R) 1800 Oak St., Rolla, Mo. (Missouri School of Mines) FRAHME, Herman H. (WI) r. 2358 Banning Rd., Akron 13, Ohio (U. S. Stoneware Co.) ME, Dudley P., Jr. (MI) 2366 Club Rd., Columbus 21, Ohio (Harrop Ceramic Service Co.) FRANCE, J. H., REFRACTORIES CO. (William A. France) Snow Shoe, Pa. FRAKCE, William A. (R) J. H. France Refractories Co. Snow Shoe, Pa. FRANCESCHI?'I, Felippe J. V. de A. Ceramica Sao Caetano Caixa Postal 278, Sao Paulo, Brazil FRANCIS, Ronald K. (I) Box 847. Alfred, N. Y. FRANCISCO, Allen C. (RI) Brook Lane, RR 1 Chesterland, Ohio (Kolcast Industries, Inc.) FRA?'CK. Leon Et~. Franck & Steeman, S. A. 20, Avenue Emmanuel Haren-Nord/Brussels, Belgium FRANCL, Josef (B) 1802 Perth St.. Toledo 7, Ohio (Owens-Illinois) FRAKK, Arthur W. (R) 2284 Auer Park Pewaukee Lake, Pewaukee, \Visc. (Hevi-Duty Electric Co.) FRAKK. Henry A. (W) Rockport Sanitary Pottery Corp. Rockport, Ind. FRAKK, John (D) Frankoma Pottery, Box 789 Sapulpa, Okla. FRAKKLIK, Earl W. (RI) 811 Columbia Ave., St. Joseph, Mich. (J...aboratory Equipment Corp.) FRANKLIN, William S. (GI) 918 Grassmere Ave., Wanamassa, N. ]. (Bendix Aviation Corp. Red Bank Div.) FRANKOMA POTTERY (John Frank) Box 789 Sapulpa, Okla. VOL. 35, No. 10 (1956) FRANTZ, Samuel G. (M) S. G. Frantz Co., Inc. Box 1138, Trenton 6, N. J. FRANTZ, S. G., CO., INC. (Samuel G. Frantz) Box 1138 Trenton 6, ~ J. FRAKZ, Leo J. (S) Acme Brick Co., Malvern, Ark. FRASER, Lewis H. D. (BI) Dan-Mar Apt. 106, Marion, Ind. (RCA Tube Division) FRASER, Orray T. (Gl) 574 E. Mithoff St., Columbus 6, Ohi" (B. F. Drakenfeld & Co., Inc.) FRASER, Walter A. (G) 1320 E. 56th St., Chicago 37, Ill. (Chicago Midway Laboratories) FRASER, W. B. (5) Fraser Brick Co., Box 144 Dallas I, Texas FRAZIER, C. E. (GF) Frazier-Simplex, Inc. 436 E. Beau St., Washington, Pa. FRAZIER, C. T. (G) 527 E. Beau St., Washington, Pa. (Frazier-Simplex, Inc.) FRAZIER, J. Earl (GFI) Frazier-Simplex, Inc. 436 E. Beau St., Washington, Pa. FRAZIER-SIMPLEX, INC. (C. E. Frazier) 436 E. Beau St. Washington, Pa. FRECHETTE, Howells (Life, SF) 52 Park Ave.. Ottawa, ant., Canada FRECHETTE, Van Derek (BFI) State University of New York College of Ceramics Alfred, N. Y. FREDERICK, C. L. (RI) 24 Meadowood Lane, R.R. 4 Chagrin Falls, Ohio FREDERICK, Gilbert M. (R) Babcock & Wilcox Co. 3 Penn Center Plaza Philadelphia 2, Pa. FREDERICK, Vernon W. (G) Libbey-Owens-Ford Glass Co. Rossford, Ohio FREDERICKS, John D. (S) Pacific Oay Products Box 2178. Terminal Annex Los Angeles 54, Calif. FREDRIKSSOK, John 1. (R) Norton Co., Box 87 Niagara Falls, Ont., Canada FREEMAN, Charles A. (RFI) Freeman Fire Brick Co. Box 606, Canon City, Colo. FREEMAN, Edgar H. (W) Norris-Thermador Corp. 20118 E. Valley, Walnut, Calif. FREEMAK, Joseph (R) General Electric Co. 3198 Chestnut St., Philadelphia 4, Pa. FREKCH, Myrtle M., (DF) 128 K. Main St., Alfred, N. Y. FRENCH, Preston W. (Gl) 1517 Union Ave., Brackenridge, Pa. (Pittsburgh Plate Glass Co.) FREY, E. F. (M) DeVilbiss Co., Toledo 1, Ohio FREY DELL. Octavio Loceria Colombiana Apartado Aereo 10-46 Medellin, Colombia FRIEDBERG. Arthur L. (EF) University of Illinois 217 Ceramics Bldg., Urbana, Ill. FRIEDMAN, Louis K. (W) Homer Laughlin China Co. 212 Fifth Ave., New York, N. Y. FRIGIDAIRE DIV., GENERAL MOTORS CORP. (W. H. Pfeiffer) 300 Taylor St., Dayton I, Ohio FRISK, Norman E. (R) 2046 Evansdale Ave., Toledo 7, Ohio ( Owens-Illinois) FRITZ, Earl C. (W) 16 S. Main St., Franklinville, N. Y. (Precision Ceramics, Inc.) FRITZ, E. H. (WFl) 710 Walnut St., Latrobe, Pa. (Stupakoff Div., Carborundum Co.) FROBERG, Laird (R) Owens-Corning Fiberglas Corp. Case Ave., Kewark, Ohio FROME, Howell E. (G) United Fuel Gas Co., Box 1273 Charleston 25, \\'. Va. FRONCZAK, E. T. (S) Richland Shale Brick Co., Box 328 Mansfield, Ohio FROST, Leon J. (E) Box 138, Lewiston, K. Y. (Titanium Allo)" Mfg. Div. National Lead Co.) FRY, Herbert G. National Enamels, Ltd., 53 Norman Rd. Greenwich, London, S. E. 10, England FRYE, John C. (B) State Geological Survey 121 Katural Resources Bldg. Urbana, Ill. FRYE, John F. 402 Calhoun St., Salisbury, N. C. FRYSINGER, James B. (M) Pennsylvania Glass Sand Corp. Two Gateway Center, Pittsburgh, Pa. FUENZALIDA, Javier H. (W) Foreign Div., American Radiator & Standard Sanitary Corp. 40 W. 40th St., New York 18, N. Y. Ft:JII, Takashi Yale Uni\ersit~, Dept. of Chemistry Kew Ha\'en, Conn. FULKER. Richard H. (EI) 1408 Nicklin Ave., Piqua, Ohio (Pemco Corp.) FULLER, A. A. (X) 322 S. Twyckenham Dr. South Bend, Ind. (SoJlit Construction Co., Inc.) FULLER. Donald H. (El) 335 S. Cook Ave., Trenton, N. J. (Trenton Fabricated Metal Co.) FULLER, L. R. (EI) 959 E. South St., Frankfort, Ind. (Ingram-Richardson. Inc.) FULLER, Richard B. (WI) Universal Clay Products Co. 1528 First St., Sandusky, Ohio FULLER, Richard G. (W) D. E. McNicol Pottery Oarksburg, W. Va. FULLER, Wilfred (E) General Steel Wares Ltd. Adelaide & Nelson Sts. London, Ont., Canada FULMER, Raymond C. (WI) Stackpole Carbon Co., St. Marys, Pa. FULRATH, Richard M. (RI) University of California 164 Hearst Mining Bldg. Berkeley 4, Calif. FUNK, Harry C. (G) Eagle-Picher Co., Insulation Div. Box 290, Joplin, Mo. FVNKEY, John H. (G) Carr-Lowre~' Glass Co. Kloman & Wenburn Sts. Baltimore 3, Md. FUNKHOUSER CO. (]. B. Sauls) 138 W . Washington St. Hagerstown, Md. FUKNELL, John E. (MI) Southwest Research Institute Box 2296, San Antonio 6, Texas FUSSELL, Lynn E. (E) 3501 Tyrone Dr., Louisville 18, Ky. (General Electric Co.) FUWA, Tasuku Massachusetts Institute of Technology Rm. 8-,114. Cambridge 39, Mass. ROSTER 35 f I G GAFF~EY, LeRo)' J. 1103 W. Illinois St., t: rbana, Ill. GAGI~, L. V. (G) 2616 Latonia Blvd., Toledo 6, Ohio (L.O.F Glass Fibers Co.) LEY, ~Iatthew D. 2~01 W. Montlake P}., Seattle 2, Wash. . I~ ER. Taylor M. (V.) 215 Steedley Dr., Louisville 14, Ky. (American Radiator & Standard Sanitary Corp.) GAI~ES. Robert F. (5) E. 10801 Sprague, Spokane 63, Wash. I Washington Brick & Lime Co.) GAISER. R. Arthur (G) Ball Brothers Co., Inc., Muncie. Ind. GALBREATH. \\'illiam W., Jr. (RI) 193 Clinton :he., Apt. 5C Brooklyn 5. X. Y. I Babcock & Wilcox Co.) GALE. Richard H. (Bl 1081 Allston Rd. Cle\'e!and Height!' 21. Ohio I Ferro Corp.) GALL:\GHER. Thomas F. (G) Laclede-Christy Co. Di\'. H. K. Porter Co. 2512 First ~ational Bank Bldg. Pittsburgh 22. Pa. GALLl:P. John (Gil Radio Corp. of America, Tube Di,. 415 S. Fifth St.. Harrison, X. J. GALCSHA. Richard L. (W) Continental Ceramic Corp. Box 41, BigleniIle. Pa. GALVIN, G. H., Jr. (5) Rockford Brick & Tile Co. Rockford. Iowa GAL"I!\', Richard J. (51 Sheffield Brick & Tile Co. Sheffield I, Iowa GAMBLE. Dayid L. (R) Kew Jersey Zinc Co. of Pa. esearch Dept., Palmerton, Pa. BLE. John D. (W) Bell & Gossett Co., 8200 Austin Ave. Morton Grove, 111. GAXDY, Robert J., Jr. 3032 Eastlake, Apt. 3 Seattle 2, Wash. GAKGLER, James J. (R) 20538 Stanford Ave. Fairview Park 26, Ohio (National Advisory Committee for Aeronautics) GANGULI, Umapati Bengal Enamel Works Ltd. P. O. Bengal Enamel, Dist. 24 Parganas West Bengal, India GANPULE, Anant K. Parshuram Pottery Works Co., Ltd. Morvi, Saurashtra, India GANTS, Sheldon B. (D) Ceramic Associates, Inc. 3650 Dyre Ave., New York 66, N. Y. GARBISCH, !\'orbert S. (W) Garco Products, Inc. Box 351. Butler, Pa. GARCIALEAL. Ramon (M!) Apa rtado Postal 11 I 5 Monterrey K. L., Mexico (Manufacturers Representative) GARCO PRODUCTS, INC. (Norbert S. Garbisch) Box J51 Butler, Pa. GARDE!\', Henry R., Jr. (5) Box 508, Salem, Va. IOld Virginia Brick Co., Inc.) GARDXER, Walter E. (5) Lalkillera Monterrey S. A. Apartado 360 Monterrey, N. L., Mexico DOl', Robert (G) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. GARFIELD REFRACTORIES CO. (Kenneth A. Rugh) Bolivar, Pa. VOL. 35, No. 10 (1956) GARLA!\'D, C. F. (5) Mason City Brick & Tile Co. , Mason City, Iowa GARLICK, Oakle)' H. (M) PaulO. Abbe, Inc. Little Fall!'. !I:. -J. GARLICK, Philip L. (1) I Glad,,; St .. Cyrildene Johann~sburg. South Africa (Primrose Brick Worb) GARO!\'ZIK, S. H. (5) 4211 Brookview Dr., Dallas, Texas (Crown Brick Mfg. Co.) GARRO~I. Ricardo Rua Padre Joao Manuel 975 Sao Paulo, Brazil (Ceramica Sanitaria Porcelite 51 A) GARSTANG, Alec King. Taudevin & Gregson Ltd. Grindlegate Works, Scotland St. Sheffield 3. Yor\(, England GART~ER. Carl W. (W) General Color & Chemical Co., Inc. Box 7. Minerva, Ohio GART~ER. George C. (W) General Color & Chemical Co., Inc. Box 7. Minerya, Ohio GARVE. T. Walter (SFI) 69 W. Weisheimer Rd. Columbus 14, Ohio (Consulting Engineer) GARVEY, Lawrence P. (RI) RCA Victor, 415 S. Fifth St. Harrison. K. J. GASKI~S, W. W. (MI) Sierra Talc & Clay Co. Box 390, South Pasadena, Calif. GATES. Daniel W. (XI) R.R. 4, Box 221, Huntsyille, Ala. (Redstone Arsenal) GATES. Louis E., Jr. Hughes Aircraft Co., Bldg. 20 Rm. 1018B, Culver City, Calif. GA TES. Major E. (R) 773 Vista Grande Ave. Los Altos, Calif. G.-HLI !I: , E. H. (5) Texas Clay Products Co. Box T. Malakoff, Texas GAUDIANO, Victor M. (W) Sanitarios EI Aguila S. A. Apartado Postal 26808, Zona 14 Mexico. D. F. GAUNDER, Wilbur F. (G) Pittsburgh Plate Glass Co. Works No. 11. Mt. Vernon, Ohio GAl'TSCH, Murray C. (MI) Metal & Thermit Corp. 415 E. 151st St., East Chicago, Ind. GAVIN, G. P. (W) Kohler Co., Kohler, Wise. GAWTHROP, Alfred (5) 885 Maplewood Rd., Lake Forest, III. (Chicago Brick Co.) GAY, Hayward A. (R) Cincinnati Milling Products Div. Cincinnati Milling Machine Co. 4701 Marburg Ave., Cincinnati 9, Ohio GEE, Kenneth H. (B) 2033 Westfield Terrace, Bethlehem, Pa. (Bethlehem Steel Co.) GEIGER, Charles F. (RFI) 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 J, N. Y. GEIST, William J. (X) Young Machinery Co., Muncy, Pa. GELLER, R. F. (WFI) 5427 York Lane, Bethesda 14, Md. (National Bureau of Standards) GELSTHARP, Frederick (GF) 1134 Park St., Tarentum 1, Pa. GELTMA!\', Gerald 276 Winthrop Rd., Teaneck, K. J. GEMMELL, J. G. (G) GoldingKeene Co., Box 456 Keene, N. H. GEMP, Robert W. (R) 500 Michell St., Ridley Park, Pa. (Botfield Refractories Co.) GEXDEL. Sydney Z. (R) 4050 Eastway Rd. South Euclid 21, Ohio (Zirconium Corp. of America) GENERAL CERAMICS CORP. (Salvatore Ortepio) Crows Mill Rd., Keasbey, !I:. J. GENERAL COLOR & CHEMICAL CO., INC. (George C. Ga rIner) Box 7, Minerva, Ohio GENERAL ELECTRIC CO. (~. F. Shofstall) 1811 LeMoyne Ave., Syracuse, ~. Y. GENERAL ELECTRIC CO. (L. E. Thiess) Insulator Dept. Baltimore 30. Md. GENERAL ELECTRIC CO. (W. S. Kahlson) Lamp Dept., Pitney Glass Work. Nela Park 12, Cleveland, Ohio GENERAL GLASS EQUIPMENT CO. (Victor A. Plumbo) 5 S. Virginia Ave. Atlantic City, N. J. GENERAL REFRACTORIES CO. (Russell P. Heuer) 1520 Locust St. Philadelphia 2, Pa. GENTRY, Raymond (G) Alexander H. Kerr & Co., Inc. Box 2008, Santa Ana, Calif. GENTSCH, A. Page (M) United Cia}' Mines Corp. 101 Oakland St., Trenton, N. J. GENTSCH, Bernhard F. (M) United Clay Mines Corp. 101 Oakland St.. Trenton, N. ]. GEORGE, W. R. (W) Canonsburg Pottery' Co. Canonsburg, Pa. GEORGE, W. S. (W) W. S. George Pottery Co. Park Ave., East Palestine, Ohio GEORGE, W. S., POTTERY CO. (W. S. George) Park Ave. East Palestine, Ohio GEORGIA-CAROLINA BRICK & TILE CO. O. C. Hagler, Jr.) 10 Campbell Bldg., Augusta, Ga. GEORGIA KAOLIN CO. (Robert H. Bollinger) 433 N. Broad St., Elizabeth J, N. ]. GEPHART. Charles D. (5) Cedarhurst, Holly Springs, Miss. (Holly Springs Brick & Tile Co., Inc.) GERBER, Oscar L. (W) Gerber Plumbing Fixture Corp. 232 N. Clark 51., Chicago I, 111. GERCAR. Francisco J. S. A. Cristalerias Del Uruguay Comercio 1491, Montevideo, Uruguay GERSCH, Herbert (5) 3557 Ontario St., Columbus 11, Ohio (Clayeraft Co.) GERSTEN SCHLAGER, V., Jr. (R) Babcock & Wilcox Co.. Box 923 Augusta, Ga. GERSTER, C. W. (WI) Louthan Manufacturing Co. 2000 Harve)' Ave., East Liverpool, Ohio GETTO, Allan 585 E. 16th St., Brooklyn 26, N. Y. GHERING, Leonard G. (GF) Preston Laboratories, Box 149 Buth:r, Pa. GIACOMELLI, Domenico Soc. It. Refrattari Marghera Azionaria Via Industrie 52 Cas. Post. J08 Marghera, Venice, Italy ROSTER 37 I.! L rj GIANG, Yu Kim Choan Huat Co. Inc. 111 Jose RizaJ St., MandaJuyong RizaJ Province, Philippines GIBB, Mary J. American Ceramic Society e 4055 N. High St., Columbus 14, Ohio BBS, Melvin B. (E) Inland Steel Co., Quality Control Dept. East Chicago, Ind. GIBSON, Frank B. (E) 9 Terrace Circle Great !\'eck, L. I., N. Y. (Seaporce! Metals, Inc.) GIBSO!\', R. L. (WI) 1314 Wilmington Ave. Kew Castle, Pa. (Shenango China, Inc.) GIBSO!\', Robert C. (E) Parker Rust Proof Co. 2177 E. Milwaukee Ave. Detroit 11, Mich. GIESEKE. Fran; Kockums Emaljerverk Ronneby, Sweden GIESER, Ralph H., Jr. (E) Rheem Manufacturing Co. 7600 S. Kedzie, Chicago 29, Ill. GIESS, Edward A. (I) Box 903, Alfred, N. Y. GIL. Da"id (D) 122 McCall St .. Bennington, Vt. (Cooperati\'C Design) GILBERT, George W. (G) Owens-Corning Fiberglas Corp. 598 Madison Ave., New York 22, N. Y. GILES, James H., Jr. (EI) 1821 Brett St., Apt. 2 Pittsburgh 5, Pa. (0. Hommel Co.) GILES, Raymond (W) 142 McKeever St., Crooksville, Ohio (Crooksville China Co.) GILES, Thomas M. . 1674 Berkshire Rd., Columbus, Ohio ILFILLAK, B. T. (R) Climax Fire Brick Co., Climax, Pa. ILFILLAN, J. M. (W) New Jersey Porcelain Co. Box 908, Trenton 5, N. J. GILL, John H. (R) Gill Clay Pot Co., Muncie, Ind. GILL, Joseph W. (MI) 685 Van Buren St., Des Plaines, 111 (U. S. Gypsum Co.) GILL, LaVerne K. (WI) American Radiator & Standard Sanitary' Corp., Box 268 Torrance, Calif. GILL, W. T., Jr. (S) Texas Brick Co., Box 510 Brownwood, Texas GILLESPIE, H. M. (M) 225 Broadway, New York 7, N. Y. GILLIARD, Joseph W. (D) 108 W. County St., Phoebus, Va. (Hampton Institute) GILLIES, Daniel M. (B) Linde Air Products Co., Research Lab. Box 44, Tonawanda, N. Y. GILLINDER BROTHERS, INC. O. Fletcher Gillinder) Port Jervis, N. Y. GILLINDER, J. Fletcher (G) Gillinder Brothers, Inc. Port Jervis, N. Y. GILT!\'ER, Benedict C. (5) Foil,, & Grove, Bensenville, Ill. (Liu'"dberg Engineering Co.) GIMSON, Josepb F. Worcester Royal Porcelain Co., Ltd. li e< _Royal Porcelain Works Worcester, England GINGOLD, Jacob 6 rue de Fontenay, Plessis-Robinson Paris, Seine, France GIRALDEZ, Emilio Ceramica Nacional C. A. . Box .'1.-10, Riobamba, Ecuador VOL. 35, No. 10 (1956) GIRARD, R. T. (E) General Electric Co. General Engr. Lab., Bldg. 37, Rm. 299-38 One River Rd., Schenectady 5, N. Y. GITTER, Alice Josephine (MFI) 39 W. 70th, New York 23, N. Y. (Whittaker, elark & Daniels, Inc.) GITZEN, Walter H. (R) 1 Wesley Dr., Belleville, Ill. (Aluminum Co. of America) GIVEI'<, Conrad W. (E) Great Lakes Steel Corp. Ecorse, Detroit 29, Mich. GLABAC, Ernest R. (G) 140 Woerd Ave., Waltham 54, Mass. (Raytheon Mfg. Co.) GLADDING, Albert C. (S) Gladding Bros. Mfg. Co. Third & Keyes St., San Jose, Calif. GLADDING, McBEAN & CO. (S. V. Saginpr) 2901 Los Feliz Blvd. Los Angeles 39, Calif. GLADNEY, Kurt (G) Fiberglas Canada Ltd., Box H Sarnia, Ont., Canada GLASER, Frank W. (R) Alloy Precision Castings Co. E. 45th St. & Hamilton Ave. Cleveland 14, Ohio GLASER, John H. (G) Uniscience Inc. 112 Crooked Billet Rd., Hatboro, Pa. GLASFORD. James W. 1350 Boilvin Ave., Rockford, Ill. GLASSER, Fred P. Pennsylvania State University 226 Mineral Sciences Bldg. University Park, Pa. GLAZE, Francis W. (GFI) 4100 Gallatin St., Hyattsville, Md. (National Bureau of Standards) GLENGERY SHALE BRICK CORP. (Gordon E. Lewis) Box 86, Shillingt.:>n, Pa. GLENSHAW GLASS CO., INC. (George W. Meyer) Glenshaw, Pa. GLOBEUNION INC. (J. Fletcher Harper) 900 E. Keefe Ave., Milwaukee 1, Wise. GLOSS, Gunter H. (R) International Minerals & Chemical Corp. 5401 Harrison St., Skokie, Ill. 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) GLYNN, 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.) GODEJAHN, Gordon C., Jr. (G) 2847 Alisdale Dr., Apt. 102 Toledo 6, Ohio (Owens-Illinois) GODFREY, T. Gordon, Jr. Box 3434, Clemson College Sta. Clemson, S. C. GODOY, E. A., & CO., INC. (Emilio A. GodO)) 25 Broadway New York 4, N. Y. GODOY, Emilio A. (R) E. A. GodO)' & Co., Inc., 25 Broadway Kew York 4, N. Y. (;OETCHIUS, Don R. (E) Ferro Corp. 4150 I!. 56th St., Cleveland, Ohio GOIN, Fred L. (SI) Gladding, McBean & Co., Lincoln, Calif. GOLDING-KEENE CO. O. G. Gemmell) Box 456 Keene, K. H. GOLDMAI'<, Basil B. (S) Rhodes Chemical Co. 1545 S. State St., Chicagn 5, 111 GOLDSMITH, Julian R. t B) University of Chicago DepLof Geology, Chicago 37, Ill. GOLDSTEI!\', Marcy B. (EJ) 6 Glenfair Rd., Fair Lawn, K. J. (Cnited States Army Chemical Corps.) GOLDSTEIN, Martin (G\ Mellon Institute, Pittsburgh 13. Pa. GOLlBER, Edward W. (B) 2602 N. Connecticut, Roval Oak. Mich. (General Electric Co.) . GOMEZ, Leon D. Cristaleria Peldar Ltda Medellin, Colombia GOMEZ, Salvador Odriozola (R) Fabrica de Ladrillos Industriales y Refractarios, S. A., Apartado 390 Monterrey, N. L., Mexico GOKDER, Lawton (W) Gonder Ceramic Arts. Inc. Box 448, Zanesville, Ohio GONZALES, ?\arciso (M) Eagle Pencil Co. 710 E. 14th St.. ?\ew York 9, N. Y. GOODFELLO\V, Ted M. (W) Tektronix, Inc., 9450 S. W. Barnes RI:!. Portland, Ore. GOODHL'E, R. K. (M) Stauffer Chemical Co. 326 S. Main St., Akron 8, Ohio GOODMAK, Gilbert (B) General Electric Research Lab. Box 1088, Schenectady, K. Y. GOODMAN, James S. (E) American Radiator & Standard Sanitary Corp., 834 E. Broadway Louisville 4, Ky. GOODRICH, Hobert R. (WI) 1622 Santa Barbara Ave. Glendale 8, Calif. (Gladding, McBean & Co.) GOODRIDGE, Paul Box 847, Alfred, N. Y. GOODWI?\, William Jarrard (B) 3464 Wallace Dr., Grand Island, N. Y. (Electro-Mctallurgical Co.) GORDON, Irwin (W) RCA Laboratories Div. Princeton, N. ]. GORDON, John R. (R) Zirconium Corp. of America Solon, Ohio GORMLY, Maurice W. (W) 7330 Miami Hills Dr., Madeira, Ohio (Cincinnati Milling Products Div., Cincinnati Milling Machine Co.) GORNALL, Henry A. (M!) 4357 Ardmore Rd., S. Euclid Cleveland 21, Ohio (Allied Engr. Div., Ferro Corp.) GORSUCH, Charles A. (M) Ayers Mineral Co., 806 Market St. Zanesville, Ohio GORT, Walter A. (W) Twin Bay Village, Bolson Landing, N. 'I. (General Ceramics Corp.) GOSS, Bruce R. 11 Hamilton St., Weedsport, N. Y. GOSZTOKYI, George L013dur, A,. Mayo 981 Buenos Aires, Argentina GOTTO, Mrs. B. D. "Wheatlands," Headley Nr. Newbury, Berks, England (A. L. Curtis Co.) GOUDGE, Monson F. (R) Mines Branch, 40 Lydia St. Ottawa, Ont., Canada (Dept. Mines & Technical Surveys) ROSTER 39 I. I' t' GOULD, Anita H. (GJ) 320 E. Eighth Ave., Tarentum, Pa. (Pittsburgh Plate Glass Co.) GOULD, Robert E. (WFI) Buffalo Potter}', Inc. 25 Hayes PI., Buffalo 10, K. Y. 'ER, Irving W. (R) 16 W. Boulevard, Mexico, Mo. (Mexico Refractories Co.) FF, James B. (5) Graff-Kittanning Clay Prods. Co. v.'orthington, 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 GRAHAM, Henry C. 18 N. Erie St., Mayville, K. Y. GRAHAM, John Warren (R) 843 Cascade Rd., Cincinnati 40, Ohio (General Electric Co.) GRANNEN, Edward A. (W) 77 Sheehan j\Ye., Cincinnati 15. Ohio (Cambridge Tile Mfg. Co.) GRANT, Frederic I. (W) 527 W. Seventh St., Rm. 303 Los Angeles 14, Calif. (Grant Ceramic. Co.) GRANT, John F. (I) Box 262. Corning, N. Y. GRAUER, Oscar H. (G) Fischer & Porter Co., Hatboro, Pa. GRAVES, F. E. (5) Lindberg Industrial Corp. 1559 Post Rd., Fairfield, Conn. GRAY, Thomas J. (B) Box 814, Alfred, N. Y. (State University of Kew York, College of Ceramics) GRAY; W. Ashley, Jr. (X) Pioneer Silica Products Co. 3615 Olive St., St. Louis 8, Mo. Y, William T. (G) Leeds & Northrup Co. 4901 Stenton Ave., Philadelphia 44, Pa. GRAYBEAL, Byron F. (M) American Vermiculite Co., Inc. Roan Mountain, Tenn. GREAT LAKES FOUNDRY SAND CO. (C. L. Cruikshank) 720 United Artists Bldg. Detroit 26, Mich. GREEN. A. P . FIRE BRICK CO. (William S. Lowe) 1018 E. Breckenridge St., Mexico, Mo. 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. (S) Milton Brick Co., Ltd., Box 554 Milton, Ont., Canada GREEN, John 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.) GREEKE. Charles F. (S) 6046 K. Trenholm Rd., Columbia, S. C. (Columhia Brick & Tile Co.) GREEKE, Charles H. (G) BOll 804, Alfred, N. Y. (State University of New York, col~ege of Ceramics) EN E, Eleanor L. 4524 17th N. E., Seattle, Wash. GREENE, ]. F. (GF) 1043 New Pear, Vineland, N. J. (Kimble Glass Co.) VOL. 35, No. 10 (1956) GREE1\FIELD, Jerome (M) Seaboard Chemical Corp. 198 Broadway, I\ew York 38, N. Y. 'GREENHOUSE, Harold M. (B) Aladdin Radio Industries Nasbville 2, Telln. GREENLEE, Charles A. (R) Basic, Inc. 8~5 Hanna Bldg.. Cleveland IS, Ohio GREGER, Herbert H. (W) Trans-Tech., Inc. Box 346, Rockville, Md. GREGORIl'S, J. S. (GFI) Pittsburgh Plate Glass Co. One Gateway Center. Pittsburgh 22, Pa. GREXIER, Lee (M) Magnet Cove Barium Corp" Box 832 Greybull, W)o. GRESHAM, Lucius C., Jr. (5) Acme Brick Co., Box 308, V.'askom, Texas. GRETHER, Charles M. (W) D. M. Steward ~lanufacturing Co. E. 36th St.. Chattanooga, Tenn. GREWER, Douglas eM]) 45-34 ~7th St., Woodside 77, X. Y. (United States Army) GRIFFIN, Thomas W. "La FeuiIJc~e" Trelex Vaud, Switzerland eHartford Empire Co.) GRIFFIN. William R. (W) "'eweantic Shores, \\'areham, Mass. (Aerovox C0rp.) GRIFFITH, J. Scott (R) 5524 W. Adams St., Chicago 44, Ill. (Armour Research Foundation) GRIFFITH, R E. (R) RR. I, Malvern, Pa. (E. J. Lavino & Co.) GRIFFITHS, Korman Nonporite Pty. Ltd. 292-296 Burwood Rd. Hawthorn E 2, Victoria, Australia GRIGG, Arthur (R) Box 2329. Denver I, Colo. (Denver Brick & Pipe Co.) GRIGG, Paul E. (EI) 338 N. Dover Ave., La Grange Park. Ill. (Association of American Railroads) GRIM, Ralph E. (X) Dept. of Geology, Univ. of Illinois Urbana, Ill. GRIMM, Clayford T. (5) Clay Products Assoc. of the Southwest 109 PerT)'-Brooks Bldg., Austin 1, Texas GROBB, F. S. (R) G. F. Sterne & Sons. Ltd. 126 Bruce St., Brantford, Ont., Canada GROOME, Garland L. (R) 931 Jeffrey St., Baltimore 25, Md. (Harbison-Walker Refractories Co.) GROSS, Harold I. (W) Santa Anita Potteries 3117 San Fernando Rd. Los Angeles 65, Calif. GROTHAUS, Joseph V. (R) 2552 E. 76th St., Chicago 49, Ill. (lOnited States Steel Corp.) GROVE, Robert L. (WI) 26 Rockland St. South Dartmouth. Mass. (Cornell-Dubilier Elec. Corp.) GRUNER, Max N. (R) Harbison-Walker Refractories Co. 1325 Ambassador Bldg., 5t. Louis I, Mo. GRVVER, Robert M. (G) 1160 Oneida St., State College, Pa. (Linden Labs.. Inc.) GSCHWIND, Jean F. eM) Ross Midwest Fulton Corp. 918 Woodley' Rd .. Dayton 3. Ohio GUERCI, Carl F. (W) 1444 Westgate Dr., Bethlehem. Pa. (Frenchtown Porcelain Co.) GUGELER, Albert L. (EJ) 3897 W. 33rd St., Cleveland 9, Ohio (Ferro Corp.) GVIMARAES, Helio Pentagna Caixa Postal 1355 Belo Horizonte, Brazil (Magnesita S. A.) GlOLICK, Chester (M) Kentucky-Tennessee Clay Co., Inc. Mayfield, Ky. GULLINGS, LeRoy V. (G) 126 Parkway Dr., Wabash, Ind. (American Rock Wool Corp.) GUMMESON, P. Eg. HoganasBillesholms Aktiebolag Hoganas, Sweden GUKTHER, F. W. (S) 849 Baker Ave., N. W. Kew Philadelphia, Ohio (Universal Sewer Pipe Corp.) GUNZEKHAUSER, Adolph (M) Industrial Consultant, 6970 1I3th St. Forest Hills 75, L. I.. 1\. Y. GVPTA, Rajeshwar K. (G]) 429 S. Di"ision, Ann Arbor, Mich. (t.:niversity of Michigan) GuPTA, Subodh C. (GJ) Box 101, Port Jervis, N. Y. (Gillinder Bros., Inc.) GURR, Wilhelm Porzellan-Manufaktur \\'. Haldenwanger Berlin-Spandau Heerstr. 221, Westsektor. Germany GUSTAFSON, Carl H .. Jr. (Rl 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) GYWE, Mg Lu Box 216, Alfred, N. Y. H HACK, Walter L. (W) Western Gold & Platinum Co. 525 Harbor Blvd., Belmont, Calif. HACKETT. James W. (G) 3614 Kenwood Blvd., Toledo 6, Ohio (Owens- Illinois) HACKLER, W. C. (WI) North Carolina State College Dept. of Mineral Industries Raleigh. N. C. HADLEY, Robert L. (E) General Electric Co. Major Appliance Div., AP 5, Rm. 249 Appliance Pk., Louisville I, Ky. HAECKER, Arthur J., Jr. (R) 1793 Sharon Dr., Concord, Calif. (Gladding, McBean & Co.) HAEGER POTTERIES, INC. (Joseph F. Estes) 7 Maiden Lane Dundee, Ill. HAERTLIKG, Gene H. (WII) 325 Virginia Ave., Ste. Genevieve, Mo. (lpsenlab of Rockford, Inc.) HAFKER, Harold C. (G) Bausch & Lomb Optical Co. Chemical Research Lab. Rochester 2, N. Y. HAFKER Robert H., Jr. (E) 175 N. Linden Rd., Mansfield, Ohio (Humphryes Mfg. Co.) HAGAK, M. A. (RI) Midwest Research Inst. 425 Volker Blvd., Kansas City 10, Me HAGAR, 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. ]. E. (R) General Abrasive Co., Inc. Drawer D, Bridge Sta. !\iagara Falls, 1\. Y. ROSTER 43 I, , t I HAGEDOR~, E. C. (G) Owens-Illinois, Technical Center 1700 K. Westwood, Toledo 1. Ohio HAGENAUER, Carl J. (G) RR 1, Sarver, Pa. (Pittsburgh Plate Glass Co.) j 1GLUND, Erik (M) nthal Corp., Amelia PI. mford, Conn. . ER, J. c., Jr. (5) Georgia-Carolina Brick & Tile Co. 10 Campbell Bldg., Augusta, Ga. HAG~ER, Fred F. (G) Phoenix Glass Co., Monaca, Pa. HAGY, Henry E. (G) Corning Glass Works Laboratory Corning, K. Y. HAHK, William P. (G) 80 Norwood Ave. Korth Plainfield, N. J. (Johns-Manville Corp.) HAHKER, Clarence H. (GF) National Bureau of Standards 'Vashington 25, D. C. H.-\LDE~, Frank A. (B) 1133 u,urel St., ~lenlo Park, Calif. (St~nford Research Institute) H.-\LDY, Norman L. (W) American Encaustic Tiling Co. 1000 <::annon Ave., Lansdale, Pa. HALE, Arthur R (M) Aluminum Co. of America 1880 Elmwood Ave., Buffalo 7, .'\. Y. HALEM, Robert G. (WJ) 1571 Undercliff Ave., Bronx 53, K. Y. (Babcock & Wilcox Co.) HALL CHINA CO. (John T. Hall) East Liverpool, Ohio HALL, Donald H. 112 Barton St., Rochester 11, ~. Y. HALL, Douglas E. Box 736, Alfred, N. Y. HALL, E. B. s Bird & Co. Ltd., Research Dept. rtered Bank Bldgs. cutta, India H. ,Everson (W) Park Way Ext., East Liverpool, Ohio (Hall China Co.) HALL, F. P. (WF) Onondaga PotteT}' Co., Electronic Div. Syracuse I, N. Y. HALL, James L. (W) 242 Oregon Ave., Palo Alto, Calif. (Thermo-Materials Inc.) HALL, John T. (W) Hall China Co., East Liver.,ool, Ohio HALL, Morris P. (5) AltOn Brick Co., Box 25 Maryland Heights, Mo. HALLBERG, Richard C. (W) 236 Watson Ave., Fostoria, Ohio (Electric Auto-Lite Co., Spark Plug Div.) HALLER, Percy 319 Carterknowle Rd., Sheffield II, England (John G. Stein & Co., Ltd.) HALLER, Wolfgang K. (B) Inst. of Silicate Research University of Toledo, Toledo 6, Ohio HALLETT, Crawford W. (RI) Ceramic Supph' Co., Box 106 Crooksville, Ohio HALLOIN, William G. (G) 1218 Broadview Blvd. Brackenridge, Pa. (Pittsburgh Plate Glass Co.) HALLSE, Robert L. 514 S. Chase Ave., Lombard, Ill. ,Louise - ion Francaise des Produits fractaires, 15, Rue de Milan Paris ge, France HAL VOKIK, Frank V. (G) Brockway Glass Co., Brockwa>', Pa. VOL. 35, No. 10 (1956) H.-\~IAKER, M. L. (R) Columbia Fire Brick Co. 612 First Kational Bank Bldg. , Canton 2, Ohio HA~IER, Donald (R) 426 Elmwood, Evatlston, Ill. (Lindberg Engineering Co.) HAMILTOl\', Edgar H. (GI) National Bureau of Standards Washington 25, D. C. HAMILTON, Eldon K. Colfax, Ill. HAMILTON, How;lrd G. 251 Tenth St. N. W., Apt. 104 Atlanta. Ga. HAMILTOK. J. C. (G) 3422 Chestnut Hill Rd., Toledo 6, Ohio (Owens- Illinois) HA~llLTOK, Noble E. (B) 53 Benjamin Rd., Belmont 78, Mass. (Clevite Transistor Products) HA~ULTOl\', Robert (M) t'nited States Gypsum Co. 300 W. Adams St., Chicago 6, Ill. H.-nULTON, W. M. (E) Crane Co., Chattanooga Div. 33rd and Alton Park Bhd. Chattanooga I. Tenn. H.'nlME, Donald G. (B) Kational Gypsum Co., Research Center 1650 Military Rd., Buffalo 17, N. Y. HAMMER, Averill J. (5) Dept. of Chemistry Bowling Green State t 1niversity Bowling Green, Ohio HAMMER, Gunter 246, Connell's Pt. Rd. South Hurstville, K. S. ,,,.., Australia (Messrs. R. Fowler Ltd.) HAMMOND LEAD PRODUCTS, INC. (William P. Wilke, III) 5231 Hohman Ave., Box 912 Hammond, Ind. HA~fPEL, Richard J. (WJ) 3762 Osceola St., St. Louis, Mo. (Trenton Potteries Co.) HANCOCK BRICK & TILE CO. (James L. Child, Jr.) Box 450 Findlay, Ohio HAND, Thomas (R) Corhart Refractories Co. 1600 W. Lee St., Louisville 10, Ky. HANDEl\', Jack (GJ) 20 Elmora Ave., Elizabeth, K. J. (enited States Army) HANDWERK, Joseph H. (B) 915 N. Prairie Ave., Joliet, Ill. (Argonne National Laboratory) HAl\'KS, Charles F., Jr. (M) Kentucky. Tennessee Clay Co., Inc. Box 894, Mt. Union Sta. Alliance, Ohio HANLEY CO. (John M. Dicker, Jr.) Summerville, Pa. HANN, Douglas G. Caynton, Shifnal, Shropshire, England (British Heat Resisting Glass Co.) HANKA, H. H. (G!) Pittsburgh Plate Glass Co. 100 Mississippi Ave. Crystal City, Mo. HAKNA, Ralph E. (WI) Square D Co., Molded Insulation Div. Peru, Ind. HA1\1\A, Richard (WJ) Hartford, N. Y. (General Electric Co.) HAKKEKE?\, Henry P. (G) Mississippi Glass Co., 88 Angelica St. St. Louis 7, Mo. HANNOK, Richard C. (M!) 1208 Franklin Rd., Salem, Ohio (R T. Vanderbilt Co., Inc.) HANOVIA CHEMICAL & MFG. CO. (R. T. Hopper) One W. Central A"e. East Newark, N. J. HAKSARD, W. Carey (WI) 2345 Cheshire Bridge Rd., N. E. Atlanta, Ga. (Georgia Institute of Technology) HAKSELL, U. G. (W) Honeywell Research Center 500 Washington Ave., S. Hopkins, Minn. HAKSEN, 1. A. (W) Fords Porcelain Works Perth Amboy, N. J. HA!\'SEN, J. E. (EFl) Ferro Corp., 5309 S. District Blvd. Los Angeles 22, Calif. HANSEK, John H. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo, Ohio HANSEK, Kenneth H. (M) 507 Edgewood Ave., Columbia, Mo. (Consolidated Feldspar Dept., International Minerals & Chemical Corp.) HANSEN, Valdemar Kastrup Glasvaerk Ltd. Norrevoldg. 12, Copenhagen K, Denmark HANSEK, Waldemar C. (R) L'niversal Atlas Cement Co. Gary (Buffington Station), Ind. HANSON, Hans R (R) 30004 W. Ten Mile Rd. Farmington. RR., Mich. (Hanson Co.) HANSON, James W. (S) Mineral Wells Clay Products, Inc. Box 92, Mineral Wells, Texas HARBERT, Carl J. (W) Harshaw Chemical Co., 1945 E. 97th St. Cleveland 6, Ohio HARBISONWALKER REFRACTORIES CO. (c. A. Brashares) 1800 Farmers Bank Bldg. Pittsburgh 22, Pa. HARBIN, Hugh P. 134 Jersey Ln., Clemson. S. C. HARCOL'RT, Edward L. (M) North American Mfg. Co. 3810 West St., Cincinnati 27, Ohio HARDER, Charles M. (DF) State University of New York College of Ceramics, Alfred, K. Y. HARDING, John Roy 4 Greenway, Horsham, Sussex, England (Sussex & Dorking United Brick Co.. Ltd.) HARDINGE CO INC. (Harlowe Hardinge) York, Pa. HARDINGE, Harlowe (B) Hardinge Co., Inc., York, Pa. HARDY, Ronald G. (51) Onondaga Brick Corp., \\'arners, N. Y. HARES, George B. (G) 15 Roosevelt St., Corning, N. Y. (Corning Glass Works) HARGREAYES, John 33 Ellers Ave. Bessacarr. Doncaster, England (Vnited Steel Co., Ltd.) HARGREAVES MILL LTD. (A. W. Cook) Botteslow St. Hanley. Stoke-on-Trent, England HARKER POTTERY CO. (Robert E. Boyce) East Liverpool, Ohio HARMAK, C. G. (WF) Horizons, Inc.. 2891 E. 79th St. Clenland 4, Ohio HARKISH, John D., Jr. (WI) Westinghouse Electric Corp. Derry, Pa. H."'RNISH, Mark E. 417 Peffer St., Harrisburg, Pa. HARPER, J. Fletcher (W) Globe-t'nion Inc., 900 E. Keefe A"e Milwaukee 1, Wisc. HARPER, Roderick L. (M) Harper Electric Furnace Corp. 39 River St., Buffalo 2, N. Y. HARPER, Wallace T, (BJ) 3113-B Trinity Ave., Los Alamos, K. M. (Los Alamos Scientific Lab.) ROSTER 45 .-1 1:- ! .'~- H.1,.RR. W. J. (GI) 1233 BeJrose, Mayfield Heights, Ohio l Harshaw Chemical Co.) HARRELL, George O. (D) Box 1007, Sanford, :\. C. (Stanly Shale Products. Inc.) NGTON, Henry W. IG) Stafford Ave., Syracuse 6, N. Y. oI-'ay Process Div., Allied Chemical t. Dye Corp.) HARRIKGTON, Roy V. (G) 10 Beaver Ave .. RR. 2 Beaver Dams. ]1:. Y. (Corning Glass Works) HARRIS CLAY CO. (Scroop W. Enloe, Jr.) Spruce Pine, K. C. HARRIS, George M. (G) Hano"ia Chemical & Mfg. Co. 100 Chestnut St., Newark 5, N. J. HARRIS, Henry M. (R) 4114 42nd 5., Seattle 18, Wash. n:. S. Bureau of Mines) HARRIS, James E. (5) 4685 S. She~man. Demer. Colo. (Robinson Brick & Tile Co.) HARRIS, Joe K. (EJ) 412 Florida Ave. S. E .. Atlanta 16, Ga. (Georgia Institute of Technology) HARRIS, Ransom S. (I) Box 695, Newark. Ohio HARRISON, Harold C. (W) 235 Vv'ebster Park Ave. Columbus 14, Ohio (Westinghouse Electric Corp.) HARRISON, William B. (BI) 5325 W. Hadle)' St. Milwauk..e 10, Wise. (Allis-Chalmers Mfg. Co.) HARRISON, W. N. (EF) National Bureau of Standards Ind. Bldg., Enameled Metals Sect. Conn. Ave. & Van Ness St., X. W. Washington 25, D. C. SHAW CHEMICAL CO. earl Harbert) 1945 E. 97th St., Cleveland 6, Ohio HART, John M. (W) Xew Jersey Porcelain Co., Box 908 Trenton 5, N. J. HART, John R. (W) 3810 Briggs Ave.. Erie, Pa. I Erie Resistor Corp.) HART, Leroy D. (R) 707 Crompton Court \Vebster Groves 19, Mo. (Aluminum Co. of America) HART, Wade J. (GI) 908 Lafayette Court, Marion, Ind. (Radio Corp. of America) HARTFORD, Thomas J. (W) 2783 Doresta Rd., San Marino, Calif. (Gladding, McBean & Co.) HARTING, Louis 1007 Main, Rolla, Mo. HARTLEY, Alva G. H. Downing & Co. Ltd. Brampton Hill 1\ewcastle, Staffs. England HARTMAN, F. Henry (G) Stouffvilk Ont., Canada (Crystal Glass & Plastics Ltd.) HARTSHORN, T. D. (EI) A. J. Lindemann & Hoverson Co. 601 W. Cleveland Ave. Milwaukee 15, Wise. HARTWIG, Frederick J., Jr. (RI) Babcock & Wilcox Co., Box 835 Alliance, Ohio HARVEY, A. M., Jr. (5) . RoanokeWebster Brick Co., Box 780 Roanoke 5, Va. i ~RVEY, Edwin T. (R) i 314 W. McPike St., Vandalia, Mo. . (Harbison-Walker Refractories Co.) HARVEY, Malcolm R. 80 F. Center St., Kaysville, Vtah VOL. 35, No. 10 (1956) HASKO, Stephen (WI) 1510 'Wheaton Lane, Silver Spring, Md (1\alional Bureau of Standards) HASSELBACH, William (G) Libhey-OwensFord Glass Co. 1701 E. Broadway..Toledo 5, Ohio HASSETT. William A. (W) Radio Corp. of America Chemical & Ph)'sical Lab. 415 S. Fifth St., Harrison, 1\. J. HASTINGS, Russell A. (M) Lindberg Industrial Corp. 2321 W. Hubbllrd St., Chicago 12, Ill. HATCH, Robert A. (B) 4135 K. Belleview Ave. St. Paul 10, Minn. (Minnesota Mining & Mfg. Co.) HATHAWAY, A. J. (R) 8721 Pershing Ave. 1\iagara Falls, 1\. Y. (Titanium Alloy Mfg. Di,., Xatiol1al Lead Co.) HATHAWAY, Isaac S. (\V) 1318 Tuttle Ave., Montgomery. Ala (Alabama State COneRe) HATHAWAY, Mrs. t:. G. (W) Alabama State College Montgomery, Ala. HAt'BEIN, Wendell L. (RJ) 810 Seventh Pl.. China Lake, Calif. (r. S. Naval Ordnance Test Sta.) HAt"CK. Charles A. (RY) 8838 Swinton Ave.. Sepulveda, Calif. (Marquardt Aircraft Co.) HAVSER, Richard E. (1) 351 Moselle St., Buffalo 11, N. Y HAVSLER, Elwood B. Box 787, Alfred, N. Y. HAUTH. Willard E., Jr. (B) 409 V,'arminster, Hatboro. Pa (International Resistance Co.) HAVEKOTTE, Walther L (R) Firth Sterling, Inc. 3113 Forbes St., Pittsburgh 30, Pa HAVELL. Richard F. (W) 846 N. Euclid Ave., Oak Park, III (Eagle Grinding Wheel Co.) HAVEKS, Irvin F. (R) 2340 1\orton Dr., Augusta, Ga. (Babcock & Wilcox Co.) HAWES, Samuel A. (S) 301 N. E. Sixth A'e. Mineral Wells, Texas (Texeramics Co I HAWK, Elwin A. (M) Hawk Laboratories. Inc., R.R East Rochester, Ohio HAWKINS, Robert J. (SI) 20 Sunnyside PI., Hamburg, N. Y (Buffalo Brick Corp.) HAWKS, Ralph L. (WI) 525 W. Maxwell, Lakeland, Fla. (Florida Tile Industries, Inc.) HAWKS, William L. (R) 48 Chester Circle, Apt. 2A New Brunswick, K J. (Sayreville CIa)' Co.) HAWS REFRACTORIES CO. (E. E. Slick, Jr.) 407 Main St. Johnstown, Pa. HAY, John Korton Co., Research Lab., v,'orcester 6. Mass. HAY, Joseph L. (R) Acme Brick Co., Box 448 Mahern, Ark. HAYDON, Mar)' P. (B) 106 Ogontz Lane, Oak Ridge, Tenn. (Oak Ridge 1\ational Laborator)') HAZELATLAS GLASS CO. (Francis C. Flint) 15th & Jacobs Sts., Wheeling, W v HAZEL, John J. (RF) Republic Bldg., Rm. 1526 Republic Steel Corp., Cleveland I. Ohio HAZEN, E. J. (Gl) R.R. 2, Ford City, Pa. (Pittsburgh Plate Glass Co.) HEALY, Jaes H. IE) 4511 N. Sherman Blvd. Milwaukee 9. Wise. (A. O. Smith Corp.) HEATH, Donald L. (B) Ohio Brass Co., Park & Ninth Barberton, Ohio HEATLEY, Sidney M. (R) Babcock & Wilcox Co. lOS S. LaSalle St., Chicago 3, Ill. HECK, Frank G. (R) E. ]. Lavino & Co., 3 Penn Center Plaza Philadelphia 2, Pa. HEDDELL. James V. (RI) 53-B Decatur St., China Lake, Calif. (t.:. S. Naval Ordnance Test Sta.) HEDDE!\, Walter A. (R) Battelle Memorial Institute 505 KinK Ave., Columbus I, Ohio HEDGES, Lee M CR) R.R 4, Cedar Grove Rd. S<'merviIle, N. J (Johns-Manville Corp.) HEDGPETH, James A. (S) Borden Brick & Tile Co., Box 177 I Durham, N. C. HEDIN, Claes Olof c/o Malardalens Tegelbruk Stockholm 3. Sweden HEDQUIST, Alfred J. (W) Apartado Postal 525 Guadalajara, Jalisco. Mexico (Lo%a Fina S. A.) HEEBKER, John C. (RI) 88 Pierce Rd., Watertown 72, Mass (Harvard Business School) HEFTI, Franz Ziircher Ziegeleien, Postfach 357 Zurich 1, Switzerland HEIDTMA1\, Clarence F. (G) National Lime & Stone Co. First National Bank Bldg. Findlay, Ohio HEILIGMAN, H. A. (RFl) E. J. Lavino & Co., Box 29 Norristown, Pa. HEIMSOETH,W~n~M. Farbenfabriken Bayer Aktiengesellschaft (22c) Leverkusen-Bayerwerk, Germany HEINDL, Raymond A. (RF) 4917 43rd St., N. W. Washington 16, D. C. HElKE, H. W. (5) Hudson Supply & Equipment Co. 1727 Pennsylvania Ave., N. W. Washington 6, D. C. HEISCHMAN, Fred E. (W) 106 S. Adams St., Fostoria, Ohio (Electric Auto-Lite Co.) HELBING, Clarence H. (G) Pittsburgh Plate Glass Co. Fiber Glass Div., Shelbyville, Ind. HELLER, Enrique % Cerro de Pasco Corp. La Oroya, Peru HELLIESEK, Richard O. (E1) Pemco Corp., 5601 Eastern Ave. Baltimore 24, Md. HELM, David F. (B) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. HELMKAMPF, R. X. (G) Laclede-Christy Co. Div. H. K. Porter Co. 2000 Hampton Ave., St. Louis 10. Mo. HELSER. Perry D. (WFI I c/o Forrest Clum, Thornville, Ohio IConsultant) HELZ, Armin W. (B) 20 Maryland Ave., Gaithersburg, Md. (U. S. Geological Survey) HEM BERG, Per Surte Glasswork, Surte, Sweden HEM STEGER, Samuel E. (EI) 4155 Audubon Rd., Detroit 24, Mich. (Pemco Corp.) ROSTER 47 J :,i . .' '1\; . .,.. ~ -'--"'--~-------1II!!II!IIl1'!'1l HE:\BY, E. B. (M) !\ational Engineering Co. Simpson Mix-Muller Div. 5-19 W. Washington Blvd. Chicago 6, 111. HE\:DERSO!\, Frank P. (M) -12 Mockingbird Ln., Tyler, Texas erro Corp., Allied Engr. Div.) ERSON, Frederick C. (WFl) oyal China, Inc., Sebring, Ohio HENDERSON, James L., Jr. (S) Robinson Ventilating Co. Zelienople, Pa. HE\:DERSO!\, William W. (M) Robinson Ventilating Co., Box 217 Zelienople, Pa. HE!\DREX, Robert R. (Rl) 105 Bank Ave., Riverton, N. J. (Hoeganaes Sponge Iron Corp.) HE!\DRYX, Dwight B. (S) Dwight B. Hendryx & Associates 6621 Darlington Rd., Pittsburgh Ii, Pa. HE\:KEL. Carl F., Jr. (G) Corning Glass Works, Corning. !\. Y. HENRAR, J. M. G. tI:. V. Porselein en Tegelfabriek MOSA MAASTRICHT Meerssenerweg Maastricht, Netherlands HENRY, Edward C. (BFI) 730 Crawford Ave., Syracuse 10, N. Y. (General Electric Co.) HE~RY. Frank R. (RF) Simonds Worden White Co. 1101 ~egJey Pl., Dayton i, Ohio HENRY, Georges Directeur General a/s Union des Verreries Mecaniques Belges. 29, Quai de Brabant Charleroi, Belgium HENRY, Kenneth M. (GF) Owens- Illinois 1700 tI:. v.'estwood Ave., Box 1035 Toledo I, Ohio _ 'SLER, J. R. (G) hemical Research Lab. Bausch & Lomb Optical Co. Rochester 2, N. Y. HEKSOtl:, Charles W. (R) Korton Co., v.'orcester 6, Mass. HEKWOOD, Reginald J. (R) 9444 Lynnhaven Rd. Cleveland 30, Ohio (Republic Steel Corp.) HEPPLEWHITE, J. W. (WFl) 13557 Cedar Rd., Cleveland 18, Ohio (Ferro Corp.) HERBERT, John S. (S) W. G. Bush & Co., 174 Third Ave., N. Nashville 3, Tenn. HERBERT, John W. (W) 3523 Anderson Pk)', Toledo, Ohio (Brush Electronics Co.) HERBERT, Paul R. (W) Sandyville, Ohio (Stylon Corp.) HERBST. Richard J. 1619 Glenwood !ne., Joliet, Ill. HERGER, Howard C. (G) Pierce Glass Co., Port Allegany, Pa HERKO. Edward (GI) 392 Magee Ave., Rochester 13, ~. Y. (Bausch & Lomb Optical Co.) HERMAN, Clarence E. 222 Hillcrest Rd., Raleigh, N. C. HERM.'\NN, Gunter Wheaton Do Brasil S. A. Caixa Postal 1461, Sao Paulo. Brazil HERMANK, James L. (W) 3288 Earlmar Dr. Los Angeles 64, Calif. .. (Redondo Tile Co.) 1 ROLD, Paul G. (BFI) 7 Radio Corp. of America Chemical & Physical Lab. Lancaster, Pa. VOL. 3,'), No. 10 (1956) HERPEL, Clarence M' (S) Southern Brick & Tile, Inc. Cherokee Station, Box 5 , Louis\'ille 5, Ky. HERRON, Robert H. (R) 1634 X. Ironwood Dr., South Bend, Ind. l Bendix Products'Div.) HERTZELL, E. A. (S) 1111 Chestnut St., Dover, Ohio (Amencan Vitrified Products Co.) 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. (Armstrong Cork Co.) HESSINGER. Philip S. (BJI) Mycalex Corp. of America Clifton Bhd.. Clifton, N. J. HEUER, Russell P. (RF) General Refractories Co. 1520 Locust St., Philadelphia 2, Pa. HEWITT, L. C. (RFl) Ironton Fire Brick Co., Ironton, Ohio HEWLETT, James Thomas (E) Ingram-Richardson, Inc. Frankfort, Ind. HICKS. James c. (Bll 27550 Edgerton Rd., Los Altos, Calif. I Kaiser Aluminum & Chemical Corp.) HICKS, John F. G. (G) 131 Thompson Dr., Painted Post, N. Y. (Corning Glass Works) HICKS, Robert G. (E) 608 21 st, Bettendorf, Iowa (Herman Nelson Div., AAF) HlGGII\'S, Ray (W) 191 Overlook Ave., \\'adsworth, Ohio (Ohio Brass Co.) HlGGINS. Waldo W. lEFI1 A. O. Smith Corp. Box 584, Milwaukee 1. Wisc. HlGGS. Harold P. (B) Automatic Manufacturing Co. 65 Gouverneur St., Newark 4. N. J. HIGHLEY. Robert W. (R) Richard C. Remmey Son Co. 2882 W. Liberty Ave. Pittsburgh 16, Pa. HIGMAN, JOHN W., CO. (Robert J. Stone) 24 State St. Kew York 4. N. Y. HILDEBRAND. Da"id (\\') R.R. 3. Hixson. Tenn. . t .'\merican Lava Corp.) H ILL. David C. Box 787, Alfred. N. Y. HILL. Ercell C. (SF) 109 Morton Ave., Apt. Ridley Park. Pa. HILL. John R. (S) 806 Scenic Dr.. Charleston, W. Va. (Charleston Clay Products Co.) HILL, Lawrence 1. (G) 507 Carver BInI.. Toledo 7. Ohi" (Libbey-Owens Ford Glass Co.) HILLING. James L .. Jr. 129 Maple Ave., Altoona, Pa. HINCKLEY, Arthur T. (R) Oldbury Electro-Chemical Co. Niagara Falls. K. Y. HIND, Stanley "The Mount." Etruria Rd. Basford, Stoke-on- Trent. England (Consulting E"g-ineer) HI~DES. Stanle}' V. (M) 88 enion Ave . Pittsbttrgh 5, Pa. (Pemco Corp.) HINDS, J. F. IG) Canadian General Electric Co. 221 Dufferin St. Toronto 3, Ont., Canada HIKES, Robert A. (Bl 8729 Radle)' Ct., Brentwood 17, Mo. (Missouri Portland Cement Co.1 HI"KI~S, E. A. (G) Tygart Valle)' Glass Co., Box 503 Washington, Pa. HII\'TZE, Wollmar W:son Agatan 12, Bromolla, Sweden (A. B. Ifoverken) HIRSSIG, Carl F. (G) 1210 Fort St., Maumee, Ohio ( National Lime & Stone Co.) HISCOCK, Harley J. (R) Fuller Merriam Co., Box 69 West Haven, Conn. HITCHIKS, R. A. (R) National Refractories Co., Inc. 17th Floor, Lewis Tower Bldg. 225 S. 15th St., Philadelphia 2, Pa. H1T:\ER. Jan K. (R) P29 Sandra Dr., Fort M}'ers, Fla. HITZEMAN, Roger L. (WI) Globe-Union Inc., 900 E. Keefe Ave. Milwaukee I, Wisc. HOARE, Henry A. (W) 2655 Sharondale Dr., N. E. Atlanta, Ga. (Georgia Sanitary Pottery, Inc.) HOBSOl'\', Joe P. (S) Acme Brick Co., Box 425 Fort Worth 2, Texas HOCH, Arthur E. (W) Crane-Pacific Co. 330 W. Citrus St., Colton, Calif. HOCH. Michael (B) t n;\'ersity of Cincinnati Dept. Chern. & Met. Engr. Cincinnati 21, Ohio HOCKIKG, William J. (W) 1612 Pennsylvania A,e. East Liverpool, Ohio (Hall China Co.) HODGDOl'\', Frank B. (B) Box 4132, N. Chattanooga Sta. Chattanooga 5, Tenn. (Tennessee Products & Chemical Corp.) HODGES, Leslie R.. Jr. Box 1409, Atlanta, Ga. HODSON, George K. The Hall, Wymeswold Nr. Loughborough, England (Hathernware. Ltd.) HODSON, Jean E. 4203 Brooklyn. Seattle 5, Wash. HOEHL, Joseph W. (E) Wolverine Porcelain Enameling Co. 3350 Scotten Ave., Detroit 10, Mich. HOELSCHER. Max W. (E) 5010 Mayfield Rd., Lyndhurst 24, Ohi" (Enamel Products Corp.) HOE~IG, Clarence L. 4325 Lawn Ave., v.'estern Springs. Ill. HOEY. Paul E. (S) Texas Vitrified Pipe Co. Box 117, Mineral V.'ells, Texas HOFFMAN. Sidney C. (G) 1646 Lindy Lane, Lexington. Ky. (Sylvania Electric Products. Inc.) HOFFMA~, Willard H. J. (M) 8 Dungarrie Rd., Baltimore 28, Md (Clinchfield Sand & Feldspar Corp.) HOFF!\ER. Jere R. (G) T. C. Whe"ton Co.. Millville. N. J. HOFSTETTER, G. W. (E) Ferro Corp . 336-338 N. Central A"e Chica~" 44. JIl HOGAN, Thomas W. (W) Flintridge China Co. 350-31\0 S. Ravmond A"e. Pao;aclena 1, 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. Wilham (E) Chicago Vitreous Corp. 1425 S. 55th Court. Cicero 50. JIl HOH~fAI\'N, Frederick R. (G) 1012 Parkview Aye. ~ew Kensing-ton, Pa. (Pittsburgh Plate Glass Co) ROSTER 49 , I i I. BOLADY, Harold \\'. ;~: Box 416, Ephrata, Wash. BOLDE:-\, Robert B. (B) Sylvania Electric Products Atomic Energy Di,. . Box 59, Bayside, :-\. Y . DE~ER. Irwin K. (E) 5389 Bayside Dr., Dayton 3, Ohio (Wright.Patterson AFB) HOLL, Barton A. (5) Logan Clay Products Co. Box 698, Logan. Ohio HOLL, Barton S. I SI I 311 W. Front St.. Logan, Ohio (Logan Clay Products Co.) HOLLEY, Kenneth E. I R) 113 Pritchard A,e., Corning, l\. Y. (Corning Glass Works) HOLMES, Gregory J. Rutgers l'niversity. Box 215 New Brun5,\ick. ~. J. HOLMES, Lyle A. (~!) 82 Pilgrim Rd., Rosslyn Farms Carnegie, Pa. (Great Lakes Foundr~' Sand Co ) HOLMES, Roland G. (S) W. S. Dickey Clay Mfg Co., Box 402 Pittsburg, Kans. HOLMSTROM, Joseph H. (RI) 11211 Washburn Ave., S. Bloomington 20, Minn. (General Refractories Co.) HOLSCHER, H. H. (GF) Owens Illinois Box 1035, Toledo 1, Ohio HOLST, Tage Vinkelvej 10. Kongens Lyngby, Denmark (Porcelaensfabriken Danmark A/S) HOLTERHOFF, A. Gray (M) National Sales Corp. 30i E. Fourth St., Cincinnati 2, Ohio HOLZMA]I;, George R (G) Mellon Institute, 4400 Fifth Ave Pittsburgh 13, Pa. o MMEL, E. M. (EF) Hommel Co., Box 475 Pittsburgh 30, Pa. HOMMEL, 0" CO. (E. M. Hommel) Box 475, Pittsburgh 30, Pa. HOMVELD, G. H. A. Av. La Colina, Quinta "Alicia" Los Chaguaramos Ca racas, Venezuela HONSBERG, Werner (W) Apartado 508, Mexico D. F., Mexico (Fabrica de Loza EI Anfora, S. A.) HOOD, Clyde (G) Leeds & Northrup Co. 1922 E. 107th St. Cleveland 6, Ohio HOOD, Harrison P. (GF) 260 Delevan Ave., Corning, K. Y. (Corning Glass Works) HOOD, L. Scott (I) Orton Ceramic Foundation 1445 Summit St., Columbus, Ohio HOOP, M. C. v. d. K. V. Royal Delft Ware ManufactoT)', "De Porceleyne Fles" v/h Joost Thooft & Labouchere 196 Rotterdamscheweg, Delft, Holland HOOPER, Bradford (R) 5 Point O'Woods Lane, Darien, Conn. (Babcock & Wilcox Co.) HOOTO!\, Norris A. Box 567, Clemson, S. C. HOOVER, Charles H. (R) 609 Wilton Rd., Towson 4, Md. (General Ref ractories Co.) OPKIKS, Robert W. (GI) Calumite Co., Box lSI Hamilton, Ohio HOPPER, R. T. (D) Hanovia Chemical & Mfg. Co. 1 W. Central Ave., East Kewark, N. J. VOL. 35, No. 10 (1956) HORAK, William (RFI) 223 Raymond Rd. West Hartford 7, Conn. (Hartford Empire Div, Emhart Mfg. Co.) HOR~ER, M. HarlIn 4757 17th X. E. St., Seattle 5, Wash. HORKI]I;G, Roy A. (GFI) Armstrong Cork Co., Lancaster, Pa. HORKUNG, Martin R I \VI) 140 E. Sheridan AYe. New Castle, Pa (Shenango China, Inc.) HORTO~, Paul B: (\\'11 Insulator Dept., General Electric Co. Box 5i, Baltimore 3, Md. HOSBEI~, Roger L. (R) 13 Standish St., Frostburg, Md. (Big Sa"age Refractories Di,.) HOSSEXLOPP, Arthur M. (WI) 921 Maplewood Dr., Kokomo, Ind. (Delco Radio DiY'., General Motors Corp.) HOSTETTER, J. C. (GFj) 1561 Dale Ave., Winter Park, Fla (Consultant) HOUCHIKS, Henr)' R. (W) Carborundum Co., Kiagara Falls, N. Y. HOUDESHELL, Robert J. (M) 215 Basswood Ave., Apt. B Dayton 5, Ohio (International Clay Machinery Co) HOUGHTO~.ArmoT)' (G) The Knoll, Corning, N. Y (Corning Glass Works) HOULAHAII:, R. C. (5) Builders Brick Co. 3800 Ninth Ave., 5., Seattle, Wash. HOUSE, Roger L. Box 787, Alfred, N. Y. HOUSMA]I;, George S. (R) Box 17, Norristown, Pa. HOUSTO~, M. Dean 507 Linden Rd.. State College, Pa. HOUZE, Armand L., Jr. (G) Houze Glass Corp., Point Marion, Pa. HOWARD, Harold B. 828 S. Ellis St., Salisbury, N. C. HOWAT, Walter L. (OF) V.'alter Howat Decorative Ceramics 85 Hopping Ave., Staten Island 7, N. Y. HOWATSOK, John (G) Universit) of Wyoming Chemistry Dept., Laramie, v.'yo. HOWATT, Glenn (W) Bldg 6-B, Apt. 3, Redfield Village Metuchen, N. J. (Glenco Corp.) HO\\'E. EIre)' E. (EFl) Chicago Vitreous Corp. 1425 S. 55th Court, Cicero SO, 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, Wisc. HOWIE, Thomas W. Campbell & Co. (RoughcastIe) Ltd. Roughcastle Works, Falkirk, Scotland HOYET, Eugene (G) R. R. 2, Box 332, 1arentum, Pa. (Pittsburgh Plate Glass Co.) HSU, Ku-hua 1, King's Terrace, 1st Floor Kowloon, Hongkong, B.C.C. (Kiu Foong Enamel Factory (H.KJ Ltd.) HUBBELL, Dean S. (E) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. HUBER, George S. (E) 314 Overbrook Rd., Baltimore 12, Md (Pemco Corp.) HUBER, Harold V. (G) 1300 Rancho Rd., Arcadia, Calif. HUBER, J. M., CORP. (D. P. McAdoo) 100 Park Ave., ]l;ew York, K. Y. HUBER-WARCO CO, AMERICAN CLAY MACHINERY DIV., Bucyrus, Ohio HUDSOK, Charles j. (R) 74 1\ewton St., v,'est Boylston, Mass. HUDSON SUPPLY & EQUIPMENT CO. (H. W. Heine) 1727 Pennsylvania A,e., N VI' Washington 6. D. C. HCETTIG, Fred R. l WI) 296 Brook Ave., 1\orth Plainfield, :\. J. (General Ceramics Corp.) HUFFCUT, Harold W. (G) V, estinghouse Electric Corv Electronic Tube Div., Box 28~ Elmira, N. Y. HL'GHES, George B. (E) 236 Indiana Ave., Dayton 10, Oh", (Frigidaire Di\' .. General Motors Corp.) HUGHES, Walter M. (WI) 534 Putnam Ave., Zanesville, Ohi" (Chicago Standard Transformer Corp.) Hl'GHEY, Vaughn V. (B) Basic. Inc., ~iaple Grove, Ohi" HC!. William L. C. (B) Radio Corp. of America, Tu1Je J Ii \ . Marion, Ind. Ht'KE. Frank B. (R) Korton Co., One ]l;ew Bond St. v.'orcester, Mass. HULL, J. Brannon (W) Hull Pottery Co., 327 Amerine St Crooksville, Ohio HULL POTTERY CO. (J. Brannon Hull) 327 Amerine SI Crooksville, Ohio HULSE, Charles O. 2240 D"';ght Wa)', Berkeley 4, Calif. HCME]I;IK, Michael, Jr. (B) 28477 Parkwood Dr., Inkster, Mich. (Ford Motor Co.) HCMMEL, Floyd A. (B) College of Mineral Industries Pennsylvania State University Uni\'ersity Park, Pa. HUMMEL, Richard (G) 615 Olympia Rd., Pittsburgh II, Pa. (Harshaw Chemical Co.) HUMMEL, Roy (W) 4318 Grantley Rd., Toledo 13, Oh", (Champion Spark Plug Co.) HUMPHREY, Richard A. (W) Mycalex Corp. of America Box 311, Clifton, 1\. J. HUMPHRYES MANUFACTURING CO. (D. J. Jones) 201 E. Fifth St. Mansfield, Ohio HU!\D, George J. (W) 227 Poplar Ave. X. W., Canton, Ohio (Sparta Ceramics Co.) HUND, Ralph (R) Speer Carbon Co., Theresia St. St. Marys, Pa. HUNGERFORD, R. M. IX) Clayburn Co., Ltd., 850 W. Hastings St. Vancou\'er 9, B. c., Canada H'L"XT. Charles W. (W) 154 Vincent St.. Chagrin Falls, Ohio (Certain-Teed Products Corp.) Hl!KT. Herhert J. rG) Kimble Glass Co .. Vineland, N. J HU]I;T, John F. (MI) Carpeo Engineering & Manufacturing Co. Jackson\'ille, Fla. HUNTER, Charles E (M) Box 430, Erwin, Tenn. (Consolidated Feldspar Dept., International Minerals & Chemical Corp.) Hl'l\TING, Everett C. (GI) 2030 Grove St., Berkeley 4, Calif. (Microchemical Specialties Co.) HUPPERT, Paul A. (EI) 414 Randolph Rd., Plainfield. N. J. (General Ceramics Corp.) HURD, Burgess M. (W) 3 Windy Crest Rd., Beaver Falls. Pa. (Ceramic Color & Chern. Mfg. Co.) ROSTER 51 HCRLEY, Robert E. (B) 469 Camden Ave. ~1oorestown, Burlington County, 1\. J. (RCA Victor) HCRLEY, T. P. (B) Sprague Electric Co. :-:orth Adams, Mass. T, Erwin J. (W) eneral Ceramics Corp. Plant 3, Research Dept. Keasbey, 1\. J. HCRST, Thomas L. (R) Monsanto Chemical Co. Everett Sta., Boston 49, Mass. HCTCH1XS, John R., III ~1a'Sachusells Institute of Technology Rm. ~-05 1, it ~Iassachusetts Ave. Cambridge 39, ~Iass. Hl:TCHISO~, Clark rEFI) i09 E. Armstrong St., Frankfort, Ind. (Ingram Richardson, Inc.) Hl'TCHISOX, R. C (RI) 2133 ~ewton A'e .. Bethlehem, Pa. I Bethlehem Steel Co.) HlTT. Glenn A. rEF) 19629 Scottsdale Blvd. Shaker Heights 22, Ohio (Ferro Corp.) HloTT. Gordon M. rR) Canadian Pacific Railway i03 Windsor Station ~lontreal 3, Que., Canada HlYCK. L. G. (E) Huyck Construction Co. 1861 DeCook Ave., Park Ridge, Ill. HYATT, Edmond P. 3499 Fleetwood Dr. Salt Lake City 9, t'tah HYDE, Collin (RI) 581 Oxford St., Worthington, Ohio (Battelle Memorial Institute) HYLA~D, J. A. <El Pacific Coast Borax Co. 3456 W. Peterson Ave., Chicago 45, Ill. t NES' Frank J. (WI) Oxbow Rd., Wayland, Mass. (Raytheon Mfg. Co.) OLLE, Andre Societe Generale de Carrelages 37, rue Leon Blum Feignies (Nord), France HYSLOP, Joseph F. "Dromore," Major's Loan Falkirk, Scotland (J. G. Stein & Co., Ltd.) lANDER, J. Richard (M) Ceramic Ne'U's, 509 S. Beverly Dr. Beverl)' Hills, Calif. ICHIKAWA, Yoshio (W) 1903 Hano"er St., Apt. 10 Pittsburgh 18, Pa. l Westinghouse Electric Corp.) IHRIG, Allen C. (G) 127 Corning Blvd., Corning, N. Y. (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. ILLI1\G, Arno M. (W) 5412 Laconia, Cincinnati 37, Ohio (Cambridge Tile Mfg. Co.) ILLINOIS CLAY PRODUCTS CO. (Howard F. West) 68 K Chicago St. Joliet, Ill. ILLYN, Alexis V. 1~3 Bevier R? .. l:~iversity Heights l'ew Brunsv.-.ck, N. J. OFF, Edward J. (M) United States Glass Co. Glassport, Pa. IMMEDIATO, Robert R. (WI) Sprague Electric Co., l'ashua, N. H. VOL. 35, No. 10 (1956) INDIAN CERAMIC SOCIETY (H. N. Roy) Dept. of Ceramics Benares Hindu Univ .. Benares, India INDIANA GLASS CO. Dunkirk, Ind. INDUSTRIAL CER.I\MIC PRODUCTS, INC. (C R. Oberst) 965 W. Fifth Ave., Columbus 8, Ohio [XGERSOLL, Harry (E) ~55 S. Catalina St. Los Angeles 5, Calif. (Pemco Corp.) IXGHAM. David ,(W) Box 546, Kittanning, Pa. I Eljer Division) INGRAMRICHARDSON, INC. rR. H. Coin) Jefferson Rd. Frankfort, Ind. ]~SLEY, Herbert (BF) 5219 Farrington Rd. Washington 16, D. C. (Consulting Mineralogist) ]KSLEY, Robert H. (B) Champion Spark Plug Co.. Ceramic Div 8525 Butler Ave., Detroit 11, Mich. INSTITUT de CERAMIQUE FRANCAISE (Louis Desmarquest) 6 Grande- 'Rue S""res (S. & 0.), France Insulator-Sec 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 IRLAND, Da\'id L. Box 787, Alfred, K Y. 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. IRVI!\'E, George C. (WI) Canadian Carborundum Co., Ltd. Niagara Falls, Ont., Canada IRWIN, Joseph T. (E) 1618 Elmwood Ave., Lakewood 7, Ohio (Consultant) IRWIN, Philip P. (W) Potters Supply Co. East Liverpool, Ohio IRWIN, William W. (W) Potters Supply Co. 1I Washington St., East Liverpool, Ohio ISAACS, Richard P. (M) 78 Elmwood Dr., Livingston, N J (Hammill & Gillespie, Inc.) ISAGAWA, Jun Nippon Toki Kaisha, Ltd. #1, l'oritakeshinmachi, Nishiku Nagoya, Japan ISELIN. Charles W. (GJ) Thatcher Glass Manufacturing Co. Elmira, N. Y. ISEKHOl'R, C. W., Jr. (S) Isenhour Brick & Tile Co., Box 1249 Salisbury, N. C. ISEKHOUR. John H. (SF) 215 Confederate Ave., Salisbury, ~. C. (Isenhour Brick & Tile Co.) ITO, Shozo Nippon Gaishi Kaisha, Ltd. 1, 2Chome, Horita-dori. Mizuho,kn Nagoya, Japan ITSCH~ER, Robert Tannenrauchstrasse 106 Zurich 38, Switzerland (Tonwerke Thayngen AG) IVES, John B. (RI) 18 Standish St., Frostburg, Md. (Big Savage Refractories Div.) . IVEY, J. Ray (S) Acme Brick Co. R.R. 1, Millsap, Texas JABBl'SCH, Arthur J. (S) Pomona TerraCotta Co. Greensboro, N. C. JACKSON, A. Curtis (SFI) Robinson Brick & Tile Co. 500 S. Santa Fe Dr., Denver, Colo. JACKSON, James Avonhaugh, Stonehouse Lanarkshire, Scotland JACKSOK, Mary A. 486 Boynton Ave., Berkeley 7, Calif. JACKSON TILE MFG. CO. (R. T. Lowrance) Box 2006 Jackson, Miss. JACKSON VITRIFIED CHINA CO. (Philip R. Distillator) 2 West St. Pelham Manor 65, N. Y. JACKSOX, Wharton (M) Wharton Jackson Co. 475 Huntington Dr. San Marino 9, Calif. JACKSON, William M., II (W) 13 Maura Dr., \\'oburn, Mass. (Godfrey L. Cabot, Inc.) JACOB, Bernard T. (RI) Xational Crucible Co. Mermaid Lane & Queen St. Philadelphia 18, Pa. JACOBI, James H. (E) Aveo ~lanufacturing Corp. Crosley-Bendix Home Appliances Div, Dept. 4i4, ~ashville I, Tenn. JACOBS, Charles W. F. (W) 19 A Longmeadow Rd. Eggertsville 23, ~. Y. (Titanium Alloy Mfg. Div., National Lead Co.) JACOBS, H. Box 117, Vereeniging Transvaal, South Africa JACOBS, Louis J. (R) Ramtite Co., 2563 W. 18th St. Chicago 8, III. JACOBS, Richard A. (G) Brockway Glass Co., Inc. Brockway, Pa. JACOBSOX, Ed (E) Maytag Co., Newton. Iowa JACOBY, William R. 241 Upson Lane, University Heights New Brunswick, N. J. JAFFE, Bernard (BI) 4238 Hinsdale Rd. South Euclid 21, Ohio lClevite Research Center) JAMESON, Robert J. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio JAMISON, C. Donald, Jr. (R) Koppers Co., Inc., Eng. & Const. Div Koppers Bldg., Pittsburgh 19, Pa JANKE, Charles E. (S) 4633 Horton Rd. Garfield Heights 25, Ohio (Cleveland Builders Supply Co.) JA~KOWSKI, Charles R. 16 Hakes Ave., Hornell, K. Y. JANSEK' Gerard F. Box 2517, Georgia Tech., Atlanta. Ga. JANSMA, Frank (M) B. F. Drakenfeld & Co., Inc. Washington, Pa. JANSSEN, William F. (M) 15 Oak Ridge Rd., Basking Ridge, N (Bell Telephone Labs.) JEFFERY, Benjamin A. (W) Box 32, Tumacacori, Ariz. JEFFREY, G. H. (W) Roder Ceramic Studio, 1331 Race St. Philadelphia 7, Pa. JELINEK, James W. (BJI) 1203 Seventh Ave., Marion, Iowa JEKKS, C. E. (B) W. S. Tyler Co. 3615 Superior Ave., N. E. Cleveland 14, Ohio ROSTER 53 r i ", I JENNIKGS, James W. (E) Quaker Silver Co., Inc. North Attleboro, Mass. JENSEN, Edwin K. (E) 11255 Minden Ave., Detroit 5, Mich. (Briggs Mfg. Co.) JE.N, Robert O. (S) co Corp., Waynesburg, Ohio J K, George N. (RF) rton Co., One New Bond St. Worcester 6, Mass. JERO, Parker (E) 932 Birchwood Dr., Washington, Ill. (Caterpillar Tractor Co.) JERVIS, Julian S. 750 Fowler St. K. W., Atlanta, Ga. JHtTNJHUKWALA, K. P. (J) Orissa Industries, Ltd., P. O. Barang Dist. Cuttack, Orissa, India JIMMERSON, James E. (S) Henderson Clay Products, Box 870 Henderson, Texas JOHNSMANVILLE SALES CORP. 0. C. Crawford, Jr.) 22 E. 40th St. New York 16, N. Y. JOHNS, William V. (W) Shenango China Inc., New Castle, Pa. JOHNSON, Alexander H. H. L. Brisbane & Wunderlich Ltd. Lord St., East Perth, West Australia JOHNSON, Alton E. (WI) 4903 N. 53rd St., Milwaukee, Wisc. (Globe-Union, Inc.) JOHKSON, A. L. (WF) Universal-Rundle Corp. W. Keith McAfee Lab., Box 1268 Mahoningtown, Pa. JOHNSON, A. M. (R) Ross-Tacony Crucible Co. Robbins & Milnor Sts. Philadelphia 35, Pa. JOHNSON, Ben (S]) 5224 Valley Oak Dr., Austin 3, Texas (University of Texas) J.TSON, Boyd M. (R) borundum Co., Box 268 h Amboy, N. J. J SOl', Bruce M. 353 Highland Dr., Seattle 9, Wash. JOHNSON, David M. (B]) 510 Southland Blvd., Louisville 14, Ky. (Corhart Refractories Co., Inc.) JOHNSOK, Dudle)' B. (E) Glascote Products, Inc. 20900 St. Clair Ave., Cleveland 17, Ohio JOHNSON, Earle K. (S) Eureka Brick & Tile Co. Box 338, Clarksville, Ark. JOHKSON, Elwin L. 1107 W. Green St., Apt. 225 Urbana, Ill. JOHNSON, Fred H., Jr. (S) Summitville, Ohio (Summitville Face Brick Co.) JOHNSON, George E., Jr. (Rl) North American Refractories Co. Curwensville, Pa. JOHNSON, Gordon H. (E) 24188 Gessner Rd. I'orth Olmstead, Ohio (Ferro Corp.) JOHNSON, Harold C. (G) Corning Glass Works Corning, N. Y. JOHNSON, J. A. Progress Engineers, Ltd., Leek Kew Rd. Cobridge, Burslem Stoke-onTrent, England JOHNSON, James E. (WJl) 3173 Herrick Rd., Columbus, Ohio (United States Air Force) IJNSON, James R. (BI) Oak Knoll Dr. hite Bear Lake 10, Minn. innesota Mining & Mfg. Co.) JOHKSON, Keith A. 3722 Warren St., N. W. Washington 16, D. C. VOL. 35, No. 10 (1956) JOHKSON, Keith K. 441 Westwood Dr., Ames, Iowa JOHNSON, Larry R. , 3529 Ivy Rd., Atlanta 5, Ga. JOHNSON, LeRoy A. (E) 1206 Cleveland St .. Evanston, Ill. (Chicago Vitreous Corp.) JOH:\SON, Norman W. (R) Eaton Manufacturing Co. 9771 French Rd., Detroit, Mich. JOHNSON, Paul V. (SF) Structural Cia)' Products Research Foundation, Geneva, Ill. JOHNSON, William A. (E) 7269 Greenleaf Ave. Cleveland 30, Ohio (Ferro Corp.) JOHKSTON, J. G. Leeds Fireclay Co .. Ltd. Wortley. Leeds 12. England JOHNSTON, James K. (M) R. R. 5, Hagerstown, Md. (Fairchild Aircraft Div.) JOLLEY. Robert W. (R) 10 Ox Bow Lane, Bloomfield, Conn. (Hartford-Empire Co.) JONES, Cecil M., II (R) Box 6~, Greendale Sta. \I.'orcester, Mass. ( :\orton Co.) JONES, D. J. (W) Humphryes Mfg. Co. 201 E. Fifth St., Mansfield, Ohio JONES, Frank L. (G) Koppers Co., Inc.. Box 128, Verona, Pa. JOKES, George A. (W) 3411 Central Ave.. Parkersburg. W. Va. (United States Ceramic Tile Co.) JO:\ES, Glen A. (B) Shreve Manufacturing Co., Shreve. Ohio JOKES, Howard E., Jr. (R) 19150 Robson, Detroit 35, Mich. (Jones-MundIe & Co.) JONES, Maynard J. (E) Pfaudler Co.. 1000 West A'e. Rochester II, N. Y. JONES METAL PRODUCTS CO. (Edwin F. Mulligan) West Lafayette, Ohio JOKES, Paul R. (X) West Virginia University Dept. of Chern. EngT. Morgantown, W. Va. JOKES, Raymond B. (W) Kational Tile & Manufacturing Co. 1200 E. 26th St., Anderson, Ind. JONES, Richard E. (R) Pittsburgh Plate Glass Co. Research Laboratory, Creightrl1l, I'a. JONES, Robert O. (R) . Standard Slag Co. Box 3, Gabbs, Nev. JOKES, Roger D. (R) 28 Cushing PI., Buffalo 20. K. Y. (Electro Refractories & Abrasives Corp.) JOKTZ, Melvin L. (M) 5028 Alhambra Ave. Los Angeles 32. Calif. (Melvin L. Jontz Co.) JORDAN, John N. (G) Consumers Glass Co. Ltd. Box 456, Station B. Montreal, Que., Canada JORDAN, John W. (M) Baroid Div., National Lead Co. Box 1675, Houston I. Texas JORDAN, R. E., Jr. (W) Mosaic Tile Co., Zanesville, Ohio JORDAN, Thomas B. (S) Mosaic Tile Co .. 829 N. Highland Ave. Hollywood 38, Calif. JOVA BRICK WORKS (J. L. JO\''') Roseton, N. Y. JOVA, J. L. (5) Jova Brick Works, Roseton, N. Y. JOYNER, Bobby L. (W) Erie ResiM"r Corp., (,44 W. 12th St. Erie, Pa. JCDKIKS, Robert W. (W) Wilbur B. Driver Co. 1875 McCarter Hwy., Ke\\'ark 4, N. ]. JUELSS, David (M) American Lead Pencil Co. 500 Willow Ave., Hoboken, K. J. K KACICZ, Joseph M., Jr. 210 Clinton Rd., West Caldwell, K. J. KADEY, Frederic L., Jr. (B) 1825 Quimby Lane, Westfield, N. J. (Johns-Manville Corp.) KAHLSON, W. S. (G) General Electric Co., Lamp Dept. Pitney Glass Works, Nela Park 12 Cleveland, Ohio KAHK, Max (G) 4932 Oleander Dr., Wilmington, N. C. KAISER, Leonard F. (G) 332 E. Wayne St., Maumee, Ohio (Libbey-Owens-Ford Glass Co.) KAISER, William E. 3103 Bellwood Ct., Apt. 11 Columbus, Ohio KALLl'P, Charles, Jr. (W1) Helipot Corp., 916 Meridian Ave. South Pasadena. Calif. KALMAK. Frank R. (EI) 2014 Baxterl)' Rd., Lakewood 7, Ohio (Pemco Corp.) KALMBACH. William J. (G) Kimble Glass Co. 1700 K. Westwood Ave .. Toledo, Ohio KALOUSEK, George L. (G) 2633 Merrimac Blvd., Toledo 6, Ohio (Owens- Illinois) KAMICH, Barnet Z. (B) 11 Garwood St., South River, N. J. (Army Ordnance Corps) KAMLER, Anthony R. 713 Seventh Ave., Ford City, Pa. KA~AZAW A, Edward 12338 Svlvan St. Korth Hollywood, Calif. KAKE, John L. (W) 8457 Wicklow Ave., Cincinnati 36, Ohio (Cincinnati Milling Machine Co.) KANTOR, Keil 1. (W) 198 Mason Dr., Metuchen, N. J. (Crowley Diy., Aerovox Corp.) KAPADIA. Homi (E) 302Y2 K. Fourth St., ~iles, Mich. I Kawneer Co.) KARKHANAVALA, M. D. 239, Botawala Bldg., Tardeo Bombay 7, India (Atomic Energ)' Commission) KAR~AS. John S. 718 Echo Ave., Zanesville, Ohio KASSEL. Robert (W) Lenox, Inc., Pomona, N. J. KASSEES, John S. (B) American Testing Lab., Inc. Box 1421, Lancaster, Pa. KAST, Edward T. Box 847, Alfred, N. Y. KASTEN, Vernon L. (WI) Three Oaks, Box 84, Jackson, Mo. (eeramo Co. Inc.) KASTEKBEI~. Ernest L. (W) 100 E. Van Ness Ave., Rutherford, N. J (Tile Council of America) KATZ, Joseph M. (WI) 625 E. Fifth St., Brooklyn 18, N. Y. KATZ, Sigmund (E) Orange Ceramic Lab. 17 Kenz Terrace. \I.est Orange, N. J. KAVFFMAN, John R. (MF!) 160 Fairview Ave., Elmhurst, Ill. (Tuttle & Kift, Inc., Subsidiary Ferro Corp.) KAl'FFMA~:\. Otto T. IW) Frontenac Floor & "'all Tile Ltu. Kingston, Ont.. Canada KAlJTZ, Karl (EFI) 24 Leon Rd., Pittsburgh 20, Pa. (Vitro Mfg. Co.) ROSTER-::'55 r .'H.... .J> K..\ Y, William T. (R) E. J. Bartells Co. 1212 Sixth Ave., S., Seattle 4, Wash. KAYSER, Julius A. (R) Gladding, McBean & CO. J901 Los Feliz Blvd. 1IAngeles 39, Calif. Y, J. C. (G) 1 Banksville Rd., Pittsburgh 16, Pa. 'ational Lime & Stone Co.) KEA?\EY, Joseph c., Jr. (G) Feldspar Corp., 1201 Banksville Rd. Pittsburgh 16, Pa. KEA~EY, Robert C. (G) St. Lawrence Fluorspar, Inc. 1201 Banksville Rd., Pittsburgh 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, Robert M. (R) 133 Puritan Rd., Plymouth Meeting, Pa. (Mullite Refractories Co.) KEEFER, George E. (G) Owens:II1inois, Technical Center 1700 N. Westwood A,e. Toledo I, Ohio KEE!'oiER, Harry T. R. R. 3. Minerva, Ohio KEHL, ?\elson 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. (Rn 1234 E. Man'ista St., Whittier, Calif. (W. P. Keith Co.) WR, Francis ngen, Switzerland eller & Cie. A.G.) KELLER, George W. (G) Owens- Il1inois 1700 N. Westwood Ave., Toledo 7, Ohio KELLY, Austin J. (E) Guelph Stove Co., Ltd., York Rd. Guelph, Ont., Canada KELLY. George D. (E) 1100 Dublin Rd., Columbus 12, Ohio (Battelle Memorial Institute) KELLY, Hal J. (R) 6025 52nd !'oi. 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) Box 265. Hondo, Texas (UniversalRundle Corp.) KELSEY, V. V. (MF) Dominion Minerals Div., Riverton Lime & Stone Co., Inc. Piney River, Va. KELTON, Stanton c., Jr. (G) Rohm & Haas Co., Bristol, Pa. KEMP, John A., Jr. (W) 1414A Hickory Ave., Torrance, Calif. ( American-Standard) KEMPF, William C. (RIl 28 Homer Pl., Metuchen, N. J. (Carborundum Co.) AGY, Lloyd N. (RJ) _ aysburg, Pa. neral Refractories Co.) 'AGY, Wi1liam L. (RFI) 770 Fetters Mill Rd. Huntingdon Valley, Pa. (Simonds Ahrasive Co.) VOL. 35, No. 10 (19,)6) KE:-;DALL, Thomas A. (5) Vniversity of Kentucky College of Eng., Lexington. Ky K6:J\DRICK, Thomas B. (G) Lancaster Lens Co. 220226 W. Main St., Lancaster, Ohio KENJ\EDY, Richard W. (W) Star Porcelain Co. Box 1329, Trenton 7, N. J. KENT, Joseph P. (WI) 247 Starr St., Brooklyn 37, N. Y. (Leviton Mfg. Co., Inr.) KDIT, N. Johnson (Rl) Johns-Manville 'Sales Corp 22 E. 40th St., New York 16, N. Y KEXT, William B. (M!) 115 W. Main St., Apt. 4 Alliance. Ohio (Kentucky-Tennessee Clay Co., Inc.) KENTUCKY CLAY MINING CO (W. J. Watkins) ,Mavfield. K, KENTUCKY.TENNESSEE CLAY CO., INC. (Chester Gulick) Mayfield, Ky. K E~WORTHY, Orville O. (B) 1486 Arthur Ave .. Lakewood 7. Ohio (Ferro Corp.) KENYO:-':, Clark (W) Frenchtown Porcelain Co. Frenchtown, N. J. KEPKA, George M. (MIl Braun Corp., 1363 S. Bonnie Beach PI. Los Angeles 54, Calif. KEPLINGER, Robert B. (RFI) Carroll Clay Co. Box 56, Carrollton, Ohio KERINS, M. P., Jr. (E) Stauffer Chemical Co. 380 Madison Ave., New York, N. Y. KERLA, Hans (R) 525 Beaumont Ave., Baltimore 12, Md. (Kerloid Corp.) KERPER, Mlllthew J. (Bil :>:ational Bureau of Standards Div. 9.2, Washington 25, D. C. KERR, Charles H. (GF) 2861 Chatsworth Blvd. San DieRo 6, Calif. KERR, John M. 228 J\. Purdue, Apt. 109 Oak Ridge, Tenn. KERR, W. Raymond (RFl) Armstrong Cork Co. Box 441, Beaver Falls, Pa. KERSHJ\ER, William G. (WI) 117 S. 14th St., Olean, N. Y. (Olean Tile Co.) KESKI. James R. 8610 44th Ave., 5., Seattle 18, Wash. KESSEL, David J. 902 W. Green, Urbana, Ill. KESTER, Ralph G. (G) 1394 June Dr., Maumee, Ohio (Kimble Glass Div., Owens-Il1inois) 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 Hills Dr., Elmira, J\. Y. (Westinghouse Electric Corp.) KILCOYNE, John R. (W) Canadian Porcelain Co. Ltd. Box 428, Hamilton, Ont., Canada KILGORE CERAMICS CORP. (D. H. Walkup) Box 1619 Kilgore, Texas KILLMAR, Henry M. (RI) Carborundum Co., Box 268 Perth Amboy, N. J. KIM, Bong Kee University of Kentucky Box 5554, Lexington, K). KIM, Kee Hyong Box 4406, Virginia Tech. Station Blacksburg, Va. KIM, You S. North Ca rol ina State College Box 3540. Raleigh, N. C. KIMBLE GLASS CO. (R. R. Black) liOO N. Westwood Ave., Toledo, Ohio KIl\G, Burnham W., Jr. (EFI) 2234 Lane Rd., Columbus 14, Ohio (Battelle Memorial Institute) KING, Charles B. (G) 189 Cedar St., Corning, N. Y. (Corning Glass Works) KI:>:G, Harry M. (MJ) 439 Washington PI., Sycamore, Ill. (Corps of Engineers, U. S. Army) KIJ\G, R. M. (EFIl Lord Hall, Ohio State Univ. Columbus 10, Ohio KING, Robert G. (W) 143 J\. Center St., Grove City, Pa (Vitro Mfg. Co.) KING, Robert M. 807 S. Victor, Champaign, Ill. KI :"G. Walter F. (M) 365 Arborlea Ave., Morrisville. Pa (Shenandoah Silica Co., Inc.) KTl\GERY, W. D. (B) Ceramics Div., Mass. Tnst. of Tech Cambridge, Mass. KINSMAN, Bradley Q. (GJI) 120 W. Water St., Painted Post, N. Y. (Corning Glass Works) KTRCHER. Paul J. (G) Maryland Glass Corp 2147 Wicomico St., Baltimore 30. Md. KIRCHER, Wolfgang (22b) Eisenberg/Pfalz Tiefenthalerstr 16, Germany (Messr. Didier-Werke A.G.) KTRCHNER, Henry P .. Jr. (B) Cornin!1 Glass Works. Corninp;, N KIRKE!I1DALE, G. A. (I) Y clo American Embassy Tel-Aviv. (Mail Room) Dept. of State Washington 25. D. C. KIRKPATRICK, Frank (WFI) 840 Strand, Hermosa Beach, Calif. (Gladding, McBean & Co.) KIRKPATRICK. Harry B. (E) National Bureau of Standards Div. 9.4, Washington 25, D. C. KLANE, Frank (G) Corning Glass Works, Corning. N Y. KLA es, Irving (W) 137 Winthrop Rd., Washington Park J\ixon, N. J. (Permadent Products, Inc.) KLAUS, Sol C., Jr. (W) 50 S. Munn Ave., Apt. 804 East Orange, N. J. (Automatic Mfg. Corp.) KLEEMAN, Lee A. (R) 2210 Briarglen, Apt. 3 Houston 27, Texas (Harbison-Walker Refractories Co.) KLEIN, Jonathan D. Massachusetts Institute of Technology Rm. 4-051, Cambridge 39, Mass. KLEIKHANS, C. J. (E) Porcelain Metals Corp. 1400 S. 13th St. Louisville 10, Ky. KLEKOTKA, Joseph F. (G) 3601 Reed St., Philadelphia 46, Pa (Philadelphia Naval Base) KLEVE!\S, H. B. (G) Mellon Institute University of Pittsburgh Pittsburgh 13, Pa. KLEYMEYER, Clifford A. (5) Standard Brick & Tile Corp. 123 J\. W. Fourth St. Evansville 8, Ind. KLIMAN. Morton 1. 6 Sutton St., Mattapan 26, Mass KLINDER, Thomas W. . Box 827, Alfred, N. Y. KLINE, Hugh L. (R) Corhart Refractories Co., Inc. 1600 W. Lee St., Louisville 10, Ky ROSTER 57 l .l ......... KLlNEFELTER, T. A. (RFl) 2116 "F" St., K. W. Washington 7, D. C. IC.UNGSBERG, Cyrus 508 Linden Rd., State College, Pa. KLIPPER, Joseph (M) .pper Diamond Tool Co., Inc. Hudson St.. !'ew York H, X. Y. E, Edward J. (M) H. C. Spinks Clay Co., Inc 1000 First Kational Bank Bldg Cincinnati 2, Ohio KLOCKKER, Herman Richard l E) Universal-Rundle Corp. W. Keith McAfee Lab., Box 126S Mahoningtown, Pa. KNAPP, Robert C. (W) 26 Virginia Ave., K W. Glen Burnie, Md. (Insulator Dept., General Electric Co.) KXAPP, Thomas E. (W) 120 Mission Meade Rd., Kew Castle, Pa. (Shenango China. Inc.) KXAPP, William J. (BI) University of California Dept. of Engineering Los Angeles 24, Calif. KNAUFT, Robert W. (R) Charles Taylor Sons Co. Box 5S, Annex Station Cincinnati 14. Ohio KNECHT. Albert O. (WI) 201 Edgewood Ave., New Castle, Pa (Universal-Rundle Corp.) KNIGHT, E. H. (S) Maurice A. Knight Sons Co. Box ISO. Crooksville, Ohio KNIGHT, M. A., Jr. (S) Maurice A. Knight, "Knight-Wart"' Box III, Akron 9, Ohio KNIGHT, MAURICE A., "KNIGHT-WARE" (M. A. Knight, Jr.) Box Ill, Akron 9, Ohio t lHT' Mellen A. (G) innesota Mining & Mfg. Co. 01 Hudson Rd., St. Paul 6, Minn. GHTON, Heywood J. (G) 834 Trombley Rd. Grosse Pointe Park 30, Mich. (Ford Motor Co.) KNISELY, Robert C. (G) 2907 Letchworth Pky., Toledo 6, Ohio (Kimble Glass Co.) KSIZEK, Jan Otto (R) Apartado 2739, Mexico, D F. Mexico (Compania Mexicana de Tubos de Albanal, S. A.) KNOBLAUGH, Walter C. (RI) Box 271, R.R. 3, Tiffin, Ohio (Basic, Inc.) KNOWLES, EDWIN M., CHINA CO. (W. D. Packman) Newell, W. Va. KNOWLES, Philip S. (S) 441 E. Buford Rd., Macon, Ga. (ElginButier Brick Co.) KNOWLES, William V. (EF) 8905 Champlain Ave. Niagara Falls. N. Y. KNOWLTON, Samuel H. (W) 610 New Center Bldg.. Detroit 2, Mkh (Aluminum Co. of America) KNOX, James J. (G) 5 Meinzer St., Avenel, N. J. (Knox Laboratories, Inc.) KNl'DSEN, Friedrich P. (BI) 4912 Crescent St., Washington 16, D. C. (National Bureau of Standards) KNUDSEN, Rolf Borgestad. P. A.. Norway (Borgestad Fabrikker) KNUTSEN, Eivind (R) 'estern Refractories Co. ox 169, lone. Calif. H, Daniel O. (M) E. I. du Pont de Nemours & Co., Inc. Electrochemicals Dept. 71 Buckingham Ave. Perth Amboy, No J. VOL. 35, No. 10 (1956) KOCH, Frank A. (M) National Sales Corp. 307 E. Fourth St., Cincinnati 2, Ohio KOCH, }{enato Direttore Stabilimento Tubi Elettronici Marconi Italiana S.p.A. Via Pile, L'Aquila, Italy KOCH, William J. (WI) A. C. F. Electronics 1336 X. Henry St., Alexandria, Va. KOCHAXEK, Michel (R) 4141 153nl St., S. E., Bellevue, "ash. (Gladding. McBean & Co.) KOEHLER, W. A. (RI) Mineral Industries Bldg. West Virginia University Morgantown, VI'. Va. KOE!'IG, Charles Jacob (\\'Fl) Engr. Expt. Sta., Ohio State Cniversity Columbus 10, Ohio KOEXIG, E. W. (M) Consolidated Feldspar Dept. International Minerals & Chemical Corp. 20 X. Wacker Dr., Chicago 6, Ill. KOE!'IG, John H. (WFI) Rutgers University School of Ceramics K ew Brunswick, N. J. KOEKIG, L. C. (X) Lindberg Engineering Co. 2450 W. Hubbard St., Chicago 12, Ill. KOHL, Hans Leerbachstr. 117 Frankfurt A. M., German~' (Degussa) KOHLER, Anthony M. (R) 400 Atlantic Ave., Springlake, K. J. (Consultant) KOHLER CO. (G. P. Gavin) Kohler, Wise. KOHK, Joseph (W) Universal Dental Co. 4Sth & Brown Sts., Philadelphia 39, Pa. KOHKE, Frank H. (W) 1700 Third Ave., New Brighton, Pa. (Ceramic Color & Chemical Mfg. Co.) KOHKKEK, Donald H. Box 437, Valley Rd., Paterson 2, K. J. KOMAC, Thoma.~ N. (R) Republic Steel Corp. 6100 Truscon Ave., Cleveland 25, Ohio KOKOPICKY, Kamillo Forschungsinstitut der Feuerfest-Industrie Helmholtzstr. 27, Bonn, Germany KOXOWITCH, Gilbert D. 2010 K. 74th Ave. Elmwood Park 35, Ill. KONRAD, Howard E. (R) . 41 Brookside Ave., Apt. 7-B Somerville, N. J. (Johns-Manville Corp.) KOOl], K. Chamotte Unie N.Y. 7, Tielerweg Geldermalsen, Holland KOOS, E. K. (WI) Sterling China Co. East Liverpool, Ohio KOPP GLASS, INC. (c. E. Leberknight) Box 8255 Pittsburgh IS, Pa. KOPPERS CO., INC. (Frank L. Jones) Box 128, Verona, Pa. KORA, Yosio 2 Chome. Katsuyama-Cho Yahata, Fukuoka, Japan (Kurosaki Fire Brick Mfg. Co. Ltd.) KOSCHKY, Arthur American Ceramic Society, Inc. 4055 K. High St., Columbus 14, Ohio KOSHCBA, Walter J. (BI) 424 Hillcrest Dr., Wyoming IS, Ohio (General Electric Co.) KOWAL, Leo B. (G) Canadian Pittsburgh Industries, Ltd. 300 Blvd. St. Croix Ville St. Laurent, Que., Canada KOW ALKA, Warren R. (G) Libbev-Owens-Ford Glass Co. 1701 'E. Broadwa)', Toledo 5, Ohio KRAFT, C. W. (S) Kraftile Co., Xiles, Calif. KRAFT, Donald E. Co. A, 185th Signal Bn. Camp Polk, La. KRAFT, Maurice M. (E) Kraft Chemical Co. 917 W 18th St., Chicago, Ill. KR:\FT, Ralph G. (R) 102 W. Chateau Place ~lilwaukee 17, Wise. (Allen-Bradley Co.) KRAFTILE CO. (c. W. Kraft) !'iles, Calif. KRAMER, William Meigs (G) Adamston Flat Glass Div., Rolland Glass Co. Box 631, Clarksburg. W. Va. 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. ;\. J. KREHBIEL, Frederick H. (W) Pyrocones Inc., Pataskala, Ohio KREHBIEL, H. Orton (R) Pyrocones Inc., Pataskala, Ohio KRElDL, E. L. (B) A. D. Little. Inc. 30 Memorial Dr., Cambridge, Mass. KRElDL. Korbert J. (GF) 40 Milford Rd., Rochester 10, !'. Y. (Bausch & Lomb Optical Co.) KRETSCHMAR, Ernest (G) Electro-Phos Slag CO. 10J S. Meramec Ave., Cla~ton 5, Mo. KREUER, Albert L. (M) Orefraction, Inc., 7425 Thomas St. Pittsburgh 8, Pa. KRIEGEL, W. Wurth (XFI) Korth Carolina State College Ceramic Engineering Di\'. Raleigh, K. C. KRIGER, Frederick S. (G) 148 E. Second St., Corning, N. Y. (Corning Glass Works) KRILL, Karl E. (B) Ohio State Univ., Res. Foundation Columbus 10, Ohio KROCHMAL, Jerome Jay (RJ) 4240 Brenau Ave., Dayton 9, Ohio (t:. S. Air Force, Project Engineer) KROECK, William H. (G) Corning Glass Works Box 544, Corning, N. Y. KROGSTIE, Lars Bernhard Fredrikstad, Norway (Korsk Teknisk Porselenfabrikk) KROXMAN, Samuel J. (WI) Carteret China Co. High St., Carteret, K J. KRt:LL, Alan R. (B) Technological Institute Library Korthwestern University Evanston, Ill. KRl'MWIEDE, John F. 406 E. Springfield Ave. Champaign. Ill. KRl'SOK, Joseph H. (R) Box 358, Frostburg, Md. (M exico Refractories Co.) KRYVlTLT, Edward Z. (W) 171 St. Joseph Ave. Long Beach 3. Calif. (Huntington Tile, Inc.) ~VECHLER, Adolph (WI) 169 Congress Ave., Providence 7, R. l. (American Emery "'heel Works) Kl'LCSAR, Frank (B) Clevite Research Center 540 E. 10Sth St., Cleveland 8, Ohio Kl'MIKS, Charles A. (B) Interchemical Corp. 432 W. 45th St., New York 36, K Y. ROSTER .')9 KVNDLER, Hanns H. (M) Arnhold Ceramics, Inc. One E. 57th St., 1\ew York 22, N. Y. KUNZMAN, Edward E. (MI) Ferro Corp., 4150 E. 56th St. Cleveland 5, Ohio 'RKJIA1\' Charles R. (G) assachusetts Institute of Technology . 4-030, Cambridge 39, Mass. Z, Peter, Jr. 827 Second St., Apt. B. Santa Monica, Calif. KVSH?\ER, Burton A. Box 5188, Georgia Tech., Atlanta, Ga. KYANITE MINING CORP. (Gene Dixon) 'Cullen, Va. KYI, Maung Yu Box 216, Alfred, 1\. Y. KYOKWAI, Yogyo Ceramic Assn. of Japan 7, Shiba1\ishikubo- Sakuragawacho Minato-ku, Tokyo, Japan KYO?\KA, Joseph c. (WI) 303 12th Ave. N., Hopkins, Minn. (Ceramic Arts Studio) L LABAN SAT, M. Jacques Societe Professionnelle Des Produits Francais De Terre Cuite 23, rue de Cronstadt. Paris XV, France LABORATORIO QUIMICO NACIONAL (Jorge AncizarSordo) Ministerio de Minas y Petroleos Apartado 2577, Bogota, Colombia LACHMA?\. Irwin M. ('WJI) W.A.D.C., Area B, Box 8908 Wright-Patterson AFB. Ohio LACLEDE-CHRISTY CO. DIV. H. K. PORTER CO. rW. L. Fabianic) 4705 Ridgewood Ave. St. Louis, Mo. LAC01\ICH, Sixto Godofredo rcelana Americana S. A. Julian y Andes omas de Zamora, F.C.N.G.R. Argentina LADOO, Raymond B. (M) 42 Huntington Rd., !\'ewton 58, Mass. (Consulting .Engineer) laFORGE, Louis H., Jr. (W) 764 Marion Ave., Palo Alto, Calif. (Consulting Engineer) LAHTI, Leslie E. (GJ) 110 Ill, N. Eaton St.. Albion. Mich. (Corning Glass Works) LAIDLER, Douglas S. 84, Vicarage Ln. Kings Langley, Herts, England (Associated Lead Manufacturers Ltd.) LAIRD, Charles (SI) Box 462, Holly Springs, Miss. (Holly Springs Brick & Tile Co., Inc.) LAIRD, Robert K. (E) 4507 Blue Bird Ave., Louisville 13. Ky. (American Radiator &: Standard Sanitary Corp., Plumbing Div.) LAMAIRE, Robert V. (RI) Sawmill Rd., Warren Tp. Plainfield, N. J. (International Nickel Co.. Inc.) LAMAR, George B. (M) Interchemical Corp., Albion Kaolin Di\'. Hephzibah, Ga. LAMB, Hal (M) Braun Corp., 1363 S. Bonnie Beach PI. Los Angeles 54, Calif. LAMBE, C. M. (MFI) United States Gypsum Co. 300 W. Adams St., Chicago 6, 111. ERT, Joseph M. (G) ellon Institute, 4400 Fifth Ave. ittsburgh 13, Pa. LAMBERTSON, Wingate A. (BI) Carborundum Co., Research Lab. Niagara Falls, N. Y. VOL. 35, No; 10 (1956) LAMBIE, J. M. (R) Findlay Clay Products Co. Washington, Pa. r.ANDBACK, Charles R. (R) Carborundum Co., Refractories Div. Perth Amboy, ?\ -J . LANDIS, Benjamin M. 131 Sixth St., Scotia, N. Y . LA?\E, George J. (W) Edgar Plastic Kaolin Co. Edgar, Fla. USE, Richard O. (RI) Macklin Co. 29'17 Wildwood Ave. Jackson, Mich. LA?\G, Richard L. (G) Ohio Fuel Gas Co. 17 N. Fourth St., Zanesville, Ohio LANG, Samuel G. (E) Hartwood Glass &: Metals Co. Box 865, Martin~burg, W. Va. LANG, S. M. (W) 9718 Braddock Rd., Oakview Silver Spring, Md. (National Bureau of Standards) LANGE, James M. (R) Bethlehem Steel Co., Bethlehem, Pa. LAKGE, Louis A. (M) Industrial Heat Control Products 641 Hawthorne Ave. South Milwaukee, Wise. LANGROD, Kasimir (W) 462 Locust Terr. West Hempstead, N. Y. (Sylvania Electric Products Co.; LANGSTO:\, Robert B. university of California Hearst Mining Bldg., Rm. 164 Berkeley 4, Calif. LANIER, William S. (R) Babcock & Wilcox Co. Old Savannah Rd., Augusta, Ga. LANNES. Eugene M. (Xl) 1695 N. Vnion St., Fostoria, Ohio (Hoeganaes Sponge Iron) LAPEN1\A, Sabino Av. Las Palmas 21, Quinta Evelyn Boleita, Edo Miranda, Venezuela LAPP, Grover W. (MF) Lapp Engineering Co. 68 W. Main St., Le Roy, N. Y. LAPP INSULATOR CO., INC. (K. E. Stettinius) Le Roy, N. Y. LARISCH, Herbert W. (EJ) 46 Fairview Ave., Valley Stream, N. Y. (Fairchild Engine Div.) LARKIN, Paul G. (S) 250 N. Harrison St., Campbell, Calif. (Consultant) LAROCCA, Frank J. (R) Colorado Fuel & Iron Corp. Box 316. Pueblo, Colo. LARSEN, Marie A/S Bing &: Grondahl Vesterbrogade, 149 Copenhagen, Denmark LARSOX, Edward A. (S) Larson Clay Pipe Co. 9980 Van Dyke Ave., Detroit 34, Mich. LARSON, Paul F. (S) 3866 Norman Ave., N. W. Canton 9, Ohio (Sparta Ceramic Corp.) LARSO?\, Thomas L. (RJ) Babcock & Wilcox Co. 161 E. 42nd St., New York 17, K. Y. LASEMAN, Malcolm E. (S) 51 S. Fenton St., Denver 14, Colo. (Robinson Brick & Tile Co.) LASKY, Elliott Box 847, Alfred, N. Y. LATCHFORD-MARBLE GLASS CO. (C. L. Dillon) Box 71707 Los Angeles I, Calif. LATIMER, Glen H. (R) 2613 Dogwood Ln., East Norriton Tp 1\orristown, Pa. (E. J. Lavino &: Co.) LATIMER, Horace L. (EI) 248 Questend Ave. Mount Lebanon, Pittsburgh 34, Pa. (0. Hommel Co.) LATIMER, Trent W. Ohio State Vniversity, Baker Hall Columbus 10, Ohio LATTIN, Judson M. (R) 14644 S. Edbrooke Ave., Dolton, 111 (International Harvester Co.) LAUCHNER, Julian H. J 27 A Stadium Terrace Champaign, Ill. LAUGHLIN. HOMER, CHINA CO. (J. M. Wells) Kewell. W. Va. LAl'RIE, DOMI1\IC (RI) Titanium Alloy Mfg. Div., 1\ationa] Lead Co. 1\iagara Falls, 1\. Y. LAWLESS. Emmett A., Jr. (S) Alton Brick Co., Box 394, Alton, III LA WRENCE, Howard O. (W) Industrial Ceramics Ltd. Cooksville. Ont.. Canaria LAWREXCE, Ralph V. (Rl) 926 Kenneth Rd., Glendale 2, Calif. (Gladding, McBean & Co.) LAWRENCE, Walter F., Jr. (WI) 153 Morningside Rd., Verona, N. j. (RCA Victor) LAWRE1\CE, Willis G. (B) State l'ni"ersity of 1\ew York, College of Ceramics, Alfred, 1\. Y. LAWS01\. Loui. Jr. (W) West Virginia Pulp & Paper Co. Development Dept., Charleston, S. C. LAWSOK, W. Branch (W) 647 1\. Elm St., Erwin, Tenn. (Lawson Feldspar &: Minerals) LAXT01\, Wilbur (G) Hazel-Atlas Glass Co., 126 Market St. Zane",ille, Ohio LA YNE. Frerl A. (W) Louth:m Mfg. Co. East Liverpool, Ohio LAYTO!\', Donald R. (Gl) Brockway Glass Co., Brockway, Pa. LAZARKIS, Peter J. (W) 37 Fifth Ave., Watertown, Mass. rRayfheo., !-.1anufacturing Co.) LEAD INDUSTRIES ASSOCIATION (Robert L. Ziegfeld) 60 E. 42nd St. New York 17, 1\. Y. LEAKE, Fred, Jr. (M) Evans Lead Corp., Box 1467 Charleston 25, W. Va. LEA1\DER. Karl .Tohan Langgat, 19. Hoganas, Sweden (Hoganas-Billesholms AB) LEAVER, Stanley (R) 1202 1\iagara St., Niagara Falls, 1\. Y. (Carborundum Co.) LE BELL, Rolf Casimir Pargas Kalkbergs Aktiebolag ABO Kakelfabrik Slottsgatan 52, ABO, Finland T.EBERKNIGHT, C. E. (GF) Kopp Glass, Inc. Box 8255, Pittsburgh 18, Pa. LEBLANC, John R. Box 16, Alfred Sta. Alfred, N. Y. LEDDY, Robert M. (S1) Box 128, Hammonton, N. J. (Alliance Oay Product Co.) 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. James A. (S) Southern Brick & Tile Mfrs. Assn. 1328 Candler Bldg., Atlanta 3. Ga LEE, P. William (Bl) 205 Elmwood Blvd., York. Pa. (Dentist's Suppl)' Co. of !\'ew York) ROSTER 63 ...,~. , 1. LEECH, L. G. H. & G. Th)'nne, Ltd. Victoria Tile Works Holmer, Hereford, England LEEDS, Donald H. (RJI) 2025 Westfield Terr., Bethlehem, Pa. Bethlehem Steel Co.) , Arch A. (R) I Avon Dr., Pittsburgh 16, Pa (Carborundum Co.) LEFFORGE, J. W. (B) Monsanto Chemical Co. Everell Station, Boston 49, Mass LEFORT, Henr)' G., Jr. (1) 411 Fairlawn Dr., Urbana, III. LE HERON, Harold Etablissements Porcher Usines de Revin, Ardennes, France LEIBIG, Edward C. (R) Corning Glass Works, Corning, K Y. LEIBSO~, J. S. (WI) Insulator Dept., General Electric Co. S. Charles & Cromwell Sts. Baltimore 3, Md. LEIPOLD, Martin H., Jr. 95 E. 12th Ave., Columbus 10, Ohio LEISER, Craig F. 8344 30th K. W., Seattle 7, Wash. LEISEY, William B. (S) 615 Elm Ave., Muhlenberg Park Reading. Pa. (Manu-Mine Research & Development Co.) LElTTEN, Carl F. (R) 50 Hawkins Ave., Hamburg, X. Y. (Electro Refractories & Abrasives Corp.) LELAND, John A. (E) 469 Arbramar Ave. Pacific Palisades, Calif. (Douglas Aircraft Co.) LEMMERMAN, Paul C. (R) E. 1. du Pont de Nemours & Co., Inc. Grasselli Chemicals Dept. _ aliOnal City Bank Bldg. eveland 14, Ohio UNYON, James S. (E) Tappan Stove Co., 250 Wayne St. Mansfield. Ohio LENCliKER, Theodore (DF) 5158 Beeler St., Pittsburgh 17, Pa. (Vitro Manufacturing Co.) LEKNOK, A. G. (W) Canadian Potteries Ltd. 360 Blvd. du Seminaire St. Johns, Que., Canada LENNON, John W. (WI) Battelle Memorial Institute 505 King Ave., Columbus, Ohio LENTZ, Clarence J. (R) Quebec Iron & Titanium Corp Box 40, Sorel, Que., Canada LEONARD, Jean (M) 96-24 Corona Ave., Corona 68, K. Y. (Jean Leonard Ceramics) LEOPOLD, Jean H. Leopold & Cie. PfafTenhofTen, (Bas-Rin), France LEO-WOLF, A. L. (M) Carborundum Co., Globar Div. Niagara Falls, N. Y. LEPP, Jack M. (S) 1357 Jli'icholas PI., Ashland, Ky. (Carlyle Tile Co.) LESAR, Albert R. (RI) 509 Woodlawn, Mexico, Mo. tAo P. Green Fire Brick Co.) LESLIE, Ernest R. (W) Bell Telephone Labs. Murray Hill, N. J. 50. Harold F. (R) 631 Beechmont Dr. earborn Hills, Mich. (Great Lakes Steel Corp.) LESTER, Frank P. (W) 15 Mercer Ave., Hartsdale, N. Y. (Consulting Engineer) VOL. 35, No. 10 (1956) LESTER, Ronald H. (WJI) 3811 Garrison Blvd., Baltimore 15, Md. (General Electric Co.) r.ESTER, W. Ronald (GF) Liberty Glass Co. Sapulpa, Okla. 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. Dept. G-62, 5C-5, Rochester, K Y. LEVENGOOD, William C. (G) 4413-289th St., Toledo, Ohio (Libbey-Owens-Ford Glass Co.) LEVI, Ormonde S. (G) Verd-A-Ray" Corp. 615 Front St., Toledo 5, Ohio LEVIN, Ernest M. (B) National Bureau of Standards Div. 9.7, Washington 25, D. C. LEVIN,!. (M) L & L Manufacturing Co. 136 Eighth St. Upland, Chester, Pa. LEVINE, Irving L. (W) 113 Comstock Ave., Syracuse 10, X. Y. (General Electric Co.) LEVY, Dorothy (D) 1212 Lincoln Ave., Highland Park, III. LEWIS, Albert D. (G) Kimble Glass Co., Vineland, N. J. LEVY, Raymond H. (B) 5501 Lynview Ave.. Baltimore IS, ~Id. (Glenn L. Martin Co.) LEWIS, George L. (B) E. 1. du Pont de Kernours & Co., Inc. Experimental Sta., Wilmington, Del. LEWIS, Gordon E. (SI) Glen-Gery Shale Brick Corp. Box 86, Shillington, Pa. LEWIS, J. H. (G) Blue Ridge Glass Corp. Kingsport, Tenn. LEWIS, J. M. (W) Abingdon Potteries, Inc. 801 N. Main St., Abingdon, Ill. LEWIS, William C. (G) Big Flats, N. Y. (Corning 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. Broadway Toledo 5, Ohio LIBERATORE, Laurence C. (G) Taylor Instrument Co. 95 Ames St., Rochester I, N. Y. LIEDER, Phillip H. (R) 2600 Dogwood Lane, Norristown, Pa. (E. J. Lavino & Co.) LIEDERBACH, William H. (BI) 202 Prospect Ave., Pewaukee, V.isc. (Globe-Union Inc.) LIGOK, Elmer R. (SI) W. S. Dicke}' Clay Mfg. Co. Box 402, Pittsburg, Kans. LILLIE, Howard R. (GF) 191 Delevan Ave .. Corning, N. Y. (Corning Glass Works) LIM, Eung K. Seoul National University College of Engr., Seoul, Korea LIM, Richard H. Y. Box 1039, Alfred, N. Y. LIM, Yock Lio 915 Oakland. Ann Arbor. Mich. LIMES, Robert W. (RI) Allegheny Ludlum Steel Corp. Research Labs., Brackenridge, Pa. LIN, Francis C. M. (G) Hazel-Atlas Glass Co. Washington, Pa. LIKDE~THAL, John W. (G) Ohio State University Engineering Experiment Sta. Columbus 10, Ohio LINDER, Cyril S. (E) 1139 Park St., Tarentum, Pa. (Pittsburgh Plate Glass Co.) LINDQUIST, C. Alan, Jr. (BI) 123 Grandview Ave., Conneaut, Ohio (Astatic Corp.) LIXDROTH, Stig A. Svenska Ackumulator AB. Jungner Oskarshamn, Sweden LIXDSAY, Carey E. (RI) :\iles Fire Brick Co. 165 E. Park Ave., Kiles, Ohio LIXDSA Y, J. Gordon (B) Aluminium Labs. Ltd. An'ida, Que., Canada LIXKHORX, William H. (W) 428 S. Western A,e., Kokomo, Ind. (American Radiator & Standard Sanitary Corp.) LIXSEIS, Max Selb/Ba)' Gerhard-Hauptmannweg 9, Germany LINTZ, E. H. (WFI) 42 Heiskell Ave., Wheeling, W. Va. (Wheeling Tile Co.) LINWOOD, Sidney H. (W) Stackpole Carbon Co., St. Marys, Pa. LINZ, Arthur (E) 551 Fifth Ave., New York 17, N. Y. (Consultant) LIPMAN, B. David Gen. Del., Alfred, K. Y. LITEN, Alexander F. Box 382, Salem, Mass. 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.) LITTLETON, Joseph C. (G) 231 Delevan A,-e., Corning, N. Y. (Corning Glass Works) LITTLETON, J. T. (Honorary, GF) Corning Glass Works, Corning, N. Y. LIVINGSTON, Charles Q. (R) Armstrong Cork Co., Lancaster, Pa. LIVOVICH, Andrew F. (R) 331 N. Virginia Ave., Hobart, Ind. (Universal Atlas Cement Co.) L & L MANUFACTURING CO. (I. Levin) 136 Eighth St. Upland, Chester, Pa. LLOYD, Katherine (R) Kaiser Aluminum & Chemical Corp. 1924 Broadway, Oakland, Calif. LO, Wing-Cheuk 10 Union St., New Brunswick, N. J. LOBAUGH, Frank E. (RI) 1052 Sherman Ave., Plainfield, N. J. (Universal Atlas Cement Co.) LOCHRIDGE, James F. (E) Ferro Enamel de Mexico, S. A. 450 Oriente 171, Mexico 14, D. F. LOCKE, Ralph S. (B) Diamond Springs Lime Co. Box 409, Diamond Springs, Calif. LOGAN CLAY PRODUCTS CO. (Barton A. Holl) Box 698 Logan, Ohio LONDEREE, Joseph W., Jr. (B) 3918 Warner Ave., Louisville, Ky. (Corhart Refractories Co.) LONG, Bernard Glaces de Boussois 22, Boulevard Malesherbes Paris 8, France LONG. George R. (E) Frigidaire Div., General Motors Corp. 300 Taylor St., Dayton I, Ohio LONG, John V. (G) Solar Aircraft Co. 2200 Pacific Highway San Diego 12, Calif. ROSTER 65 ... ...... ..I. " L01\G, Luther L. (G) Owens-Corning Fiberglas Corp. Case Ave., Newark, Ohio LOXG, Robert, Sr. (E) American Porcelain Enamel Co. 1285 Keating Ave. Muskegon 36, Mich. NG, Robert R. (W) Kational Tile & Mfg. Co. 1200 E. 26th St., Anderson, Ind. LONG, Russell E. (RI) Brush Beryllium Co. 4301 Perkins Ave., Cleveland 3, Ohio LOXGEXECKER, Robert J. (M) 46 James Rd., Broomall, Pa. (Foote Mineral Co.) LONGFRITZ, Robert K. (RI) Brighton Brick Co. Box 256, New Brighton, Pa. LONGIXO, Ted E. (S) Henderson Clay Products Henderson, Texas LONGWELL, Burton (E) Republic Steel Corp. 1423 Republic Bldg., Cleveland I, Ohio LOO~nS, Da\'id G. (M) Loomis Engineering & Mfg. Co. 126 S. 14th St., Xewark 7, 1\. J. LOREY, Frederick D. (GI) 41 Meadow Brook Apt., Corning, N. Y. (Corning Glass Works) LOREY, G. Edwin Dept. of Ceramic Engineering School of Mines & Metallurgy Rolla, Mo. LOSCO, Alfred G. (B) 27 Paterson A,e., Paterson, N. J. (Kearfott Co., Inc.) LOUDEN, R. H. (WI) McGean Chemical Co. Midland Bldg., 101 Prospect Ave. N. W. Cleveland 15, Ohio LOUGHRIDGE, Frederick A. (G) 52 Norwood Ave., Manchester, Mass. (Sylvania Electric Products, Inc.) UTHAN MANUFACTURING CO. (C. W. Gerster) 2000 Harvey Ave. East Liverpool, Ohio LOVE, L. G. (G) National Lime & Stone Co. First National Bldg., Findlay, Ohio LOVELAND, Edward W. (G) 504 79th St., 1\orth Bergen, N. J. (Fran-Stef Manufacturing Co.) LOVELL, George H. B. Silwood Ceramics, Box 152 Bergvlei, Johannesburg, South Africa LOVENBACH, J. Glaceries de Saint Roch S. A. 50, rue du Luxembourg Brussels, Belgium LOVETTE, Paul V., Jr. (R) RR. 1, Painted Post, N. Y. (Corning Glass Works) LOWE, Earl C. (SI) Box 46. Logan, Ohio (Straits\'iJ]e Brick Co.) LOWE, Edwin C. (R) 2112 Coholan St. Niagara Falls, Ont., Canada (Norton Co.) LOWE, George K. (RI) Charles Taylor Sons Co. HeightsRockefeller Bldg., Rm. 210 Mayfield at Lee, Cleveland 18, Ohio LOWE, William S. (R) A. P. Green Fire Brick Co. 1018 E. Breckenridge St., Mexico, Mo. LOWER, Clarence G. (S) New Bethlehem Tile Co. . 3]] Lafayette St., New Bethlehem, Pa. LOWER, Lloyd C. (S) 227 Washington St. New Bethlehem, Pa. (New Bethlehem Tile Co.) LOWER, Lloyd, Jr. (SJ) New Bethlehem Tile Co. New Bethlehem, Pa. VOL. 35, No. 10 (1956) LOWRA!\CE, R. T. (W) Jackson Tile Manufacturing Co. Box 2006, Jackson, Miss. , LUCAS, Joseph M. (W) 1431 Broad Blvd. Cuyahoga Falls, Ohio (U. S. Stone",:are Co.) LUCEK, John R (MJ) 51 Bushey Rd., Pittsfield, Mass. (General Electric Co.) LUCIDO, Peter J. 1518 Central, Lafayette, Ind. Lt:DOWICI, Johann W. Carl Ludowici K.a.A. Co. Jockgrim Rheinpfalz, WestGermany LCDWIG, David W. (GI) 107 Penn View Dr., Monroeville, Pa. (Pittsburgh Plate Glass Co.) LCDWIG, Urban W. (G) 2835 Little York Rd., Dayton 4, Ohio (Cni\'is Lens) LUEDERS, Roland (M) 3241 Bradford Rd. Cleveland Heights 18, Ohio (Ferro Corp.) LVHRS, Millen E. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo, Ohio LUKS, Daniel W. (WI) Star Porcelain Co. Muirhead Ave., Trenton 9, N. J. LCLL, Stanley E. (Rl) 83-8 Park A\e., Worcester 5. Mass. (Bay State Abrasive Products Co.) LVNAK, Thomas E. (WI) Globe Union, Inc. 900 E. Keefe, Milwaukee I, Wise. LVKD, H. Howard (S) 44 S. Elmwood Ave., Palatine, Ill. (Armour Research Foundation) Ll'1\D, L. Howard (SJ) 168 Austin St., Carpentersville, 111. (Central Commercial Co.) Ll.:ND, Melvin S. (W) 426 E. State St.. Alliance, Ohio (Colonial Insulator Co.) LUND, Randolph A. 1717 W. 105th St.. Chicago 43. lII. LU1\DE, Marvin 4241 Vnion Bay Ln.. Seattle, Wash. LUSHER, Gerald H. (R) Norton Co., 5905 Pacific Blvd. Huntington Park, Calif. LYLE, Aaron K. (GF) 21 Cumberland Rd. West Hartford 7, Conn. (Hartford Empire Co., Div. Emhart Mfg. Co.) LYMAN, Donald R. Box 787, Alfred, 1\. Y. LYNCH, Eugene D. (W) University of Illinois Dept. of Ceramic Engineering 204 Ceramics Bldg., Urbana, Ill. LYNCH, James F. (R) Batte1le Memorial Institute 505 King Ave., Columbus 1, Ohio LYNCH, John F. (W) 6319 K. Leavitt, Chicago, Ill. (Lindberg Engineering Co.) LYNSAVAGE, Walter F. (G) 210 Arnold Ave., Port Allegany', Pa. (Pittsburgh Corning Corp.) LYOK, John B. (S) Acme Brick Co., Denton, Texas LYOK, Kenneth C. (GF) 357 E. Washington St., Dunkirk, Ind. (Ball Brothers Co., Inc.) LYONS. Clifford T. (W) 9825 Bowman Blvd., Dallas 20, Texas (Trinity' Ceramic Supply Co.) LYONS, S. C. (M) Georgia Kaolin Co. Dry Branch, Ga. LYTLE, Jack A. (BI) 308 E. Green Tree Rd. Milwaukee 17, Wise. (A1len-Bradley Co.) LYTLE, W. O. (G) Pittsburgh Plate Glass Co. Research Lab., Creighton, Pa. LYTTLE, Frobisher T. (W) 1031 Findley Ave., Zanesville, Ohio (Mosaic Tile Co.) Me ~lcADOO, D. P. (W) J. M. Huber Corp. 100 Park Ave., New York, N. Y. McALLISTER, Christopher (GI) Box 281, Clarksburg, W. Va. (Pittsburgh Plate Glass Co.) McALPINE, Kenneth B. (G) 1201 Cnion Ave., Brackenridge, Pa. (Pittsburgh Plate Glass Co.) McASKILL, James I. (W) 311 King St. W. Kingston, Ont., Canada (Frontenac Floor & Wall Tile Co. Ltd.) McACLEY, James W. (G) 2334 Sherwood Rd., Toledo, Ohio (Libbey-Owens-Ford Glass Co.) ~lcBl'RNEY, John W. (SF) 1543 N. Falkland Ln. Silver Spring, Md. (Consultant) McBl'R!\EY, William C. (D) R R 5, Eastbrook Rd., New Castle, Pa. (Shenango China, Inc.) McCAIN, Kenneth B. (B) Wilbur B. Driver Co. 1875 McCarter Hwy.. Newark 4, K. J. McCAMMON, James W. (M) Dept. of Mines, Parliament Bldgs. Victoria, B. C., Canada McCAN!\, D. M. (W1) Akron Porcelain Co., Akron 14, Ohio McCAK1\. Sidney W. (EI) Pfaudler Co. 1000 West Ave., Rochester 3, N. Y. McCARTT. Kenneth C. (w) 1408 Delaware Ave .. New Castle, Pa. n:niyersaJ-Rundle Corp.) McCLAVE. James W. (SI) Box 508, Toronto, Ohio (Peerless Clay Corp.) McCLELLAKD. Roland H. (WI) Globe-Vnion Inc., Centralab Div. 900 E. Keefe Ave., Milwaukee, Wisc. McCLVRE, Clifton M. (RJ) 2415 Edgewood Ave., Anderson, S. C. McCLVRG. John (G) Oglebay Norton & Co. 1200 Hanna Bldg. Cleveland 15. Ohio McCOLLOM, Perry C. (Rl) American Refractories & Crucible Corp., Korth Haven, Conn. McC01\AUGHA, Wayne H. (S) Natco Corp., Box 456 East Canton, Ohio McCONNELL, G. F. (W) Mosaic Tile Co., Zanesville, Ohio McCORMICK, John M. (G) 1827 Richards Rd., Toledo 7, Ohio McCORMICK, Stewart W. (RI) Corhart Refractories Co. 1600 W. Lee St., Louisville, Ky. McCOY, Nelson (W) Nelson McCoy Pottery Co. Roseyille, Ohio McCOY, NELSON, POTTERY CO. (Kelson McCoy) Roseyille, Ohio McCREERY, George L. (W) 393 Highland Ave . Wadsworth. Ohio (Ohio Brass Co.) McCREIGHT, Louis R. (R) General Electric Co. 3198 Chestnut St., Philadelphia, Pa. McCUKE, Samuel E. (R) United States Steel Corp. Gar)' Works Res. Lab. 991, Gary', Ind. McDANEL, Donald W. (W) McDanel Refractory Porcelain Co. 510 Ninth Ave., Beaver Fa1ls, Pa. ROSTER 67 I l 'I Ii I r I r \. I I McDAKEL, M~lvin W. (W) R.R. 2, Eastval~ Rd. Beaver Falls, Pa. (McDanel Refractor)' Porcelain Co.) McDA::\EL, Sumner W. RR. 2, Beaver Falls, Pa. . McDAt\IEL, L. L. (R) _ helps Dodg~ Corp. or~nci Branch, Mor~nci, Ariz. ERMOTT, Jam~s J., Jr. (G) 136 William St., N~w York 38, t\ Y. McDO::\ALD, C. H. (S) West Bros. Brick Co. 6500 Sheriff Rd., ::\. E. Washington 27, D. C. McDOt\ALD, E. F. (EI) Ingram-Richardson Mfg. Co. Beaver Falls, Pa. McDO::\ALD, Howard A. (R) 12202 E. 19th Ave .. Spokane 64, '.\"ash. (Kais~r Aluminum & Chemical Co.) McDOUGAL, Tain~ G. (WFI) 1117 South Dr., Flint 3, Mich. and Ha'p~nny Hous~ Som~rs~t Bridge, B~rmuda McDOW ALL, Ian C. Kew Zealand Potter)' & C~ramic Research Assn., Inc. Private Bag, Lower Hutt, New Zealand McDOWELL, J. Spotts (RF) 4716 Bayard St., Pittsburgh 13, Pa. (Harbison-Walk~r Refractories Co.) McDOWELL, Samu~l J. (BFI) 52 Elm Av~., Metuch~n, N. J. (Am~rican Lava Corp.) McELROY, R. H. (MI) Int~mational Clay Machin~ry Co. 1145 Boland~r Av~., Dayton I, Ohio McEVOY, Robert J. IRI) 2234 Berdan, Toledo 13, Ohio (Owens-Corning Fiberglas Corp.) McFARLAND, James E. (E) 14025 Greenbay An .. Chicago 33, Ill. (Inland St~l Co.) McGEAN, Ralph L. (E\ Midland Bldg., 101 Prospect Ave., ::\.W. Cleveland 15, Ohio (McGean Chemical Co.) McGEE, Thomas D. Iowa State College Ceramic Engineering Dept., Ames. Iowa McGILL, William M. (B) Virginia Division of ~logy Box 3667, University Station Charlottesville, Va. McGINNIS, R. A. (W) American Lava Corp. Cherok~e Blvd. & Mfgrs. Rd. Chattanooga 5, Tenn. McGOHA!\' , G. William (E) Armco Steel Corp., Middletown, Ohio McGOLPIN, William C. (S) Rm. 403, 57 Bloor St., W. Toronto 5, Ont., Canada (Katco Clay Products, Ltd.) McGRAW, Delford A. (G) 4117 Gracewa)', Toledo 6, Ohio (Owens- I11inois) McGREGOR, Frederick B. (M) Great Lakes Foundry Sand Co. 720 l'nited Artists Bldg. Detroit 26, Mich. McHOSE, Donald G. (M) Such Cia)' Co., Box 47 P~rth Amboy, !\'. J. McHOSE, M. M., Jr. (M) Such Oa)' Co.. Box 47 Perth Amboy, !\'. J. McIKTOSH, C. M. (W) Radio Mat~rials Corp. 1708 W. Belmont Av~., Chicago 13. Ill. MclKTOSH, Harold W. (G) Am~rican Window Glass Co. Farm~rS' Bank Bldg., 20th Floor Pittsburgh 22, Pa. cIt\TOSH, William A. (S) West Virginia Pulp & Paper 0>. Polychemicals Div. Charleston, S. C. VOL. 35, No. 10 (1956) McIKTYRE, G. H. (EFI) Ferro Corp. 4150 E. 56th St., Cleveland 5, Ohio 'McKAIG, W. Wallace (R) Cumberland Steel Co. Box 28, CumberJand, Md. McKAKE, John W. (R) 257 Chesterfield Ave. Glen Ellyn, Ill. (Foremost Foundr)' Supply Co.) McKEAND, Irvin J. (W) Minneapolis-Hone)'well Regulator Co. R~search Centu 500 Washington Ave. S. Hopkins, Minn. McKEE. William D., Jr. (B) 64 W. Tulane Rd., Columbus 2, Ohio (Battelle Memorial Institute) McKEE!\', Richard D. (WI) Box 625, Haverhill, Mass. (Western Electtic Co.) McKE::\DRICK, Alexander Glenboig llnion Fire Clay Co., Ltd. Glenboig, Lanarkshire, Scotland hlcKEOWN, J. Duncan (R) Box 137 Burnet Woods Station Cincinnati 20, Ohio (Carborundum Co.) McKEOWN, Thomas H. (M) Box 31, M~tuchen, N. J. (E. I. du Pont de Kemours & Co., Inc) McKIBBEN, Burt H. (E) Mallory-Sharon Titanium Corp. !\'iles, Ohio McKINKIE, J. R (R) Ideal Chemical Products, Inc. 3813 Hoke Ave., Culver City, Calif McKI!\'!\'IS, Charles L. (GI) Owens-Corning Fiberglas Corp. Glass Res. Lab., Newark, Ohio !\lcKl..'LLA, George W., Jr. 4711 17th N. E., Seattle 5, Wash. McLACHLAN, Eugene K. (R) 2280 Sunshin~, Johnstown, Pa. (Bethlehem St~1 Co.) McLAIN FIRE BRICK DIV., H. K. PORTER CO., INC. (Lawson E. Mason) Clark Ave., Wellsville, Ohio McLANE, Jam~s P. (M) Diamond Pottery Corp. 50-56 China St., Crooksvill~, Ohio McLAREN, Henry D. (E) F~rro Enamels (Canada) Ltd. Box 37, Oakville, Ont., Canada McLAREK, John (M) Box 75, East Liverpool, Ohio (Bell Research Labs.) McLAUGHLIN, John L. (E) 564 S. Craig Pl., Lombard, Ill. (Allied Porcenell Inc.) McLAUGHLIN, Joseph K. (WI) Hyalyn Porc~lain, Inc. Hickory, N. C. McLAUGHLIN, William H. (R) Alsey Brick & Til~ Co., Alsey, 111. McMAHON, John F. (XFI) Alfred, N. Y. (State Univ~rsity of New York College of C~ramics, at Alfred Univ.) McMAHON, John F., Jr. (GJ) 645 S. Cannon Ave., Lansdal~, Pa. McMASTER, Harold A. (G) Permaglass, Inc., Box 195, Sta. A. Toledo 5, Ohio McMULLEN, John C. (R) 9325 Rivershore Dr. Niagara Falls, N. Y. (Carborundum Co.) McMURDIE, Howard F. (BF) National Bureau of Standards Washington 25, D. C. McMURTRY, Carl H. (RJI) 72 Maple Ave., Wellsville, N. Y. (State University of New York, College of Ceramics) Mc::\AMARA, E. P. (WFI) 73 Ritchie Ave., Cincinnati IS, Ohio (Cambridge Tile Mfg. Co.) Mc::\AMARA, Edward P., Jr. 135 E. Third St., Corning, K. Y. Mc::\AMARA, Richard B. (R) 17 Lochland Dr., Buffalo 25, N. Y. (Electro Refractories & Abrasives Corp.) McNAUGHTON, Ronald R (B) C~ntral Technical Library Consolidated Mining & Smelting Co. of Canada, Ltd., Trail. B. c., Canada McQUARRIE, Malcolm C. (B) 105 E. Nittany Ave., State College, Pa. (Pennsylvania State U ni versity) McRITCHIE, Frank H. (R) Mellon Institute, 4400 Fifth Ave. Pittsburgh, Pa. McRORY, Glenn 1. (M) Kew Jersey Zinc Co. 1007 !\'ational City Bank Bldg. Cleveland 14, Ohio McTAGGART, G. Don Corning Glass Works, Corning, X. Y. McVAY, T. N. (BFI) 10 Oakwood Court, Tuscaloosa, Ala. (t.:'. S. Bureal' of Mines) McWALTER, H. G. (R) Laclede-Christy Co. Div. H. K. Porter Co. Inc. 2000 Hampton Ave., St. Louis 10, Mo. McWILLIAMS, Robert J. (EI) Pfaudler Co. (Elyria Div.) Taylor St., Elyria, Ohio M MacALPIKE, William M. (G) 357 E. Main St.. Somenille. N. J. (Johns-Manvill~ R~search Laboratory) MacDOKALD, James E. (R) McFeely Brick Div. General Refractodes Co., Latrobe, Pa. MacDONALD, Raymond S. (G) Coming Glass Works, Corning, N. Y. MacDOKALD, R. W. (WI) RR 11, Box 661, San Antonio, Texas (Consulting Engin~r) MACER, W. E. (M) Carborundum Co., Glohar Div. Niagara Falls, N. Y. MacGIBBOK, Richard John G. Stein & Co., Ltd. Manuel Works Nr. Linlithgow, Scotland MACHLAN, G. R. (G) Owens-Corning Fiberglas Corp. Newark, Ohio MacI!\'TYRE, Donald J. (W) R.R., Piffard, N. Y. (Lapp Insulator Co., Inc.) MACKASEK, Edward (EF) 1722 19th St., N. W., Apt. 702 Washington 9, D. C. (Porcelain Enamel Institute) MACKENZIE, James United St~l Companies Ltd. Research & Developm~t Dept. Swind~n House, Moorgat~ Rotherham, England MacKENZIE, James T. (R) 4300 Ninth Court S. Birmingham S, Ala. (Southern R~search Institute) MACKLIN CO. (Richard O. Lan~) 2917 Wildwood Ave., Jackson, Mich. MacLEOD, John United Fireclay Products, Ltd. 140 W. George St. Glasgow, C. 2., Scotland MacNEIL, S. Amhrose Dem~rara Bauxite Co., Ltd. Mackenzie, British Guiana MacRAE, John (G) Fiberglas Canada Ltd. Box 309, Guelph, Ont., Canada ROSTER 69 .' I,,.' l I I,. " MAC ZL'RA, George IR]) 3815 Highland Rd. East St. Louis, Ill. (Alcoa Research Labs.) MADDE:\, Robert C. (B) 315 Pim St. Sault Ste. Marie, Ont., Canada (Algoma Steel Corp., Ltd.) DDOCK, A. M. (W) R. R., Washington Crossing, N. J. MADSEN, Leif Egil Box 4208, Sandakervn 109/111 Oslo, Norway (A/S Den l\;orske Slipeskivefabr.) MAGAZINE, Arnold L. (G) CBS-Hytron Corp. 100 Endicott St., Dam'ers, Mass. MAGID. H. S. (\\"1) American Radiator & Standard Sanitary Corp., Box 907 Trenton 5, lIi. J. MAGKUSON, V. E. (M) Western Feldspar Milling Co. Box 671, Salida. Colo. MAGOR. James K. (El L'nited States Steel Corp. Applied Res. Lab" Monroeville, Pa. MAGL:IRE, 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) MAHONEY, Frank B. (E) Richmond Radiator Co. Box 111, Metuchen, K. J. MAJESKE, Joseph (G) T. C. Wheaton Co., Millville, N. J. MALCOLM, Richard B. (E) O. Hommel Co. Box 475, Pittsburgh 30, Pa. ALM, Arthur T. (RI) 233 Beverly Rd., Worcester 5, Mass. (Norton Co.) ALOOTIAN, Markay H. (B) 405 Mohegan AYe., New London, Conn. (V.S.N. Underwater Sound Lab.) MALVERN BRICK & TILE CO, (George B. Eyerly) Box 415, Malvern. Ark. MALYSIAK, Chester (G) 1027 Hickory, Perrysburg, Ohio (OwensIllinois) MANDEL, Charles J. (WI) Willette Corp. of New Jersey Codwise Ave. & Reed St. New Brunswick. N. J. MANDLE, Richard M. (G) Rare Earths, Inc. Box 488, Pompton Plains, N. J. MANN, George H. (G) Lake Salubria, Bath, N. Y. (Coming Glass Works) MANNING, R. Douglas (D) Harker Pottery Co. East Liverpool, Ohio MANOUSEK, Miloslav Delnicka 27 Praha VII, Czechoslovakia MANRING, Jack C. (EJI) R.R. I, South Charleston. Ohio (Westinghouse Electric Corp.) MANRING, William H. (G) Calumite Co. Box lSI, Hamilton, Ohio MANSFIELD SANITARY POTTERY, INC. (Perry E. Draper) Pern'sville, Ohio ANUFACTURERS EQUIPMENT CO. (J. R. Schroll), 218 Madeira Ave. Dayton 4, Ohio MANZ, Oscar E. (B) Box 516, University Station Grand Forks, N. D. (University of North Dakota) VOL. 35, No. 10 (1956) MARCH, Joseph W. (S) Kova Scotia Technical College Halifax, lIi. S., Canada MARCL:S, Leon (BI) 1527 Coventry Rd., Cleveland, Ohio I Horizons, Inc.,. MARCYN, Chester A. (E) 2302 S. Kensington Ave. \\'estchester, Ill. I Chicago Vitreous Corp.) MARGOLIS, David (R) 39 Glenwood Ave., New Rochelle, K. Y. (Fish-Schurman Corp.) MARGRAVE, John L. (B) Vni"ersity of Wisconsin Dept. of Chemistry, Madison 6, Wise. MARK, Stanle)' D., Jr. (R) 1592 Lon Rd., Grand Island, K. Y. (Carborundum Co.) MARLETT, Charles]. (M) One Lloyd Ave:, Latrobe, Pa. (Kennametal, Inc.) MARQUIS, John E. (W) Pemco Corp., Res. & Dev. Lab. 2552 Greenmount Ave. Baltimore 18, Md. MARSHALL, Darwin (B) Electro Metallurgical Co. Metals Research Labs. Box 580, Niagara Falls, N. Y. MARSHALL, Paul A. (G) 1201 Cherry St., Brockway, Pa. (Brockway Glass Co., Inc.) M.'\RTIN. Albert E. (M) Almar Specialty Machines Ltd. Maple, Ont., Canada MARTII', Francis W. (G) 101 Hornby Dr., Painted Post, K. Y. (Corning Glass Works) MARTIN, Frank B. (R) E. J. Lavino & Co. Box 29, Norristown, Pa. MARTIN, H. C. (R) Carborundum Co. Buffalo Ave., Niagara Falls, N. Y. MARTIN, James K. (M) 1068 Helen Ave., Lancaster, Pa. (Posey Iron Works, Inc.) MART!!" John R., Jr. (W) Monongahela Power Co. 920 Charles St., Wellsburg, W. Va. MARTIN, Leonard A. (W) Martin Ceramic Supply Co. 8901 Rainier Ave., Seattle 8, Wash. MARTIN, Ralph H. (WI) Vernon Kilns 2310 E. 52nd St., Los Angeles 58, Calif. MARTIN, Wesley G. (EF) 6054 N. Kent Ave. Milwaukee 17, Wise. (A. O. Smith Corp.) MARTINO, Paul D. (SJ) Cannelton Sewer Pipe Co. Cannelton, Ind. MARTIKSEN, Rodney E. (M) Timken Roller Bearing Co. 1835 Dueber Ave., S. W. Canton 6, Ohio MARTZ, Joseph A. (R) 535 Riverside Ave., Wellsville, Ohio (Mclain Fire Brick Co., Div. of H. K. Porter Co., Inc.) MARTZ, Karl (D) Indiana University Art Center Bloomington, Ind. MARV1!\', Charles G. Box 787, Alfred, N. Y. MARWAHA, Kidar N. Bum & Co., Ltd. RefractOr>' & Ceramic Works Box 13, jabalpur 1, India MARX, Le Roy J. (S) Denver Terra Cotta Co. 135 Tejon St., Denver 23, Colo. MARYLAND GLASS CORP. (L. C. Roche) 2147 Wicomico St. Baltimore 30, Md. MASKILL, William Webb Corbett, Ltd. Coalbournhill Glass Works Stourbridge. Worcester, England MASON, Cecil R., Jr. 879 Courtenay Dr., X. E . Atlanta 6, Ga. MASON CITY BRICK & TILE CO. (c. F. Garland) Mason City, Iowa M:\SO);, Frank (W) Colonial Insulator Co. 945 Grant St., Akron II, Ohio MASOK, Lawson E. (R) McLain Fire Brick Div., H. K. Porter Co., Inc. Clark Ave .. Wellsville, Ohio MASSENGALE, Gordon B. (Rl) 553 Audubon Ave., Pittsburgh 34, Pa. (Harbison-\\'alker Refractories Co.) MASSON, R. Porze!Janfabrik Langenthal A. G. Langenthal, Switzerland MATCHULAT, John G. (R) Buffalo Rd., R.R. 2 East Aurora, K. 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 Mathon) Via Elia, Lombardini 13 Milano 744, Italr MATHENY, Richard E. (S) R.R. 7, Box 307, Birmingham, Ala. (Katco Corp.) MATHER, Mrs. Katharine (B) Waterwa)'s Experiment Sta. Drawer 2131, Jackson, Miss. MATHIASEK, O. E. (S) Federal Seaboard Terra Cotta Corp. Box 301, Perth Amboy, N. J. MATHIESON, George W. (G) 2253 Castlewood Dr., Toledo 13, Ohio (Kimble Glass Co.) MATHIESON, Roblin M. (R) Aluminium Limited Sales, Inc. 630 Fifth Ave., New York 20, N. Y. MATHIEU, Louis A. Parra Mantois, 11 Chemin de Ronde Le Vesinet (5&0) France MATHON. Charles Materiali Refrattari Soc. p.Azioni Via Elia Lombardini 13 Milano 744, Italy MATHON, J. Charles Materiali Refrattari Soc. p.Azioni Via Elia Lombardini 13 Milano 744, Italy MATSON, Frederick R. (GI) 723 Jackson St., State College, Pa. (Pennsylvania State l'niversity) MATTESON, Gilbert D. (W) Engineering Library Scintilla Div., Bendix Aviation Corp. Sidney, N. Y. MATTISON, William F., Jr. (GI) R.R. 3, Lawson Dr., Madison, Conn. (Libbey-Owens-Ford Glass Co.) MAU, K. T. (5) Gaspro, Box 2454, Honolulu, Hawaii MAUPIN, Addison (RI) 721 Yale Ave., Terrace Park, Ohio (Charles Taylor Sons Co.) MAU2ER, James A. (E) 5519 N. Lake Dr., Milwaukee 11. Wisc. MAURER, Robert D. (G) Corning Glass Works, Coming, N. Y. MAUSE2, H. W. Spoorsingel 68, Delft, Holland (Royal Delftware Manufactory) MAVOR, Wilfrid (E) Ferro Enamels (Canada) Ltd. Oakville, Ont., Canada MAXSON, Elwyn L. (M) 1208 Isabel St., Burbank, Calif. ROSTER- 71 MA Y, L. F. (R) Standard Ultramarine & Color Co. Huntington 18, W. Va. MAYER, Walter S. (W) Mayer China Co. Box 561, Beaver Falls, Pa. FIELD, Manville J. (WI) 827 Auburndale Ave. Chattanooga 5, Tenn. (American Lava Corp.) MAYKARD, Fred A. (M) 545 E. 250th, Euclid, Ohio (Harshaw Chemical Co.) MAYNARD, Frederick H. (G) Corning Gla.. Works 1 Jackson St., Wellsboro, Pa. MAYS, George A. (5) Box 68, Kiles. Calif. (California Pottery Co.) MEDERT, Warren e. (GI) 5320 Meh'in Dr., Toledo 14, Ohio (Owens-Illinois) MEEKA, Edward (51) Metropolitan Brick, Inc. Box 27, East Palestine. Ohio MEGLES, John E., Jr. (G) 7 Washington St., Box 148 Cokeburg, Pa. (Corning Glass Works) MElD, William J. (M) 203 Elm St., Glenview, Ill. (Lindberg Engineering Co.) MElLI KG, Gerald S. 1128 Lorraine Dr. Salt Lake City, Utah MEIKKEK, Robert H. (B) 29 Myrtle Ave. North Plainfield, N. J. (Bell Telephone Labs.) MEIRESOKNE, Arthur C. (G) 700 Village Dr., Columbus 14, Ohio (Kimble Glass Co.) MEJIA, Lorenzo (M) Colombia Brewers Industries, Inc. 80 Broad St., New York 4, N. Y. LOY, C. L. (RI) Res. Dept., Rm. A406 Bethlehem Steel Co., Bethlehem, Pa MENG, Edwin R. (R) National Carbon Co. Box 6087, Oeveland 1, Ohio MENGSHOL, Oarence O. (E) American Radiator &: Standard Sanitary Corp. 1089 Essex St., Richmond, Calif. MENNIE, Alan J. International House Berkele}' 4, Calif. MERCER, James W. 3246 Lambeth Circle, Doraville, Ga. MERCK, Walter J. (RI) 25 Addison Dr., Short Hills, K J. (M. W. Kellogg Co.) MEREDITH, Edward J. (R) Box 1533, Birmingham I, Ala. (Universal Atlas Cement Co.) MEREDITH, Neil F. (RI) Box 281G, R.R. 2, Tiffin, Ohio (Basic, Inc.) MERIWETHER, B. Corbin (W) Deena Products Co., Arlington, Ky. MERLINI, Ing. Francesco Colonnata, Florence, Italy MERRIAM, Jack G. (RI) 727 N. Wildwood, Mundelein, III. (Titanium Alloy Mfg. Div., National Lead Co.) MERRIMAN, Seth G. (G) 2722 Lincolnshire Blvd., Toledo 6, Ohio (bwens-I1Iinois, Kimble Div.) ERRITT,oarence 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, Ohio (Industrial Commission of Ohio) VOL. 35, No. 10 (1956) MERRY, 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. \ MERZ, Kenneth M. 236 Upson Ln., Kew Brunswick, N. J. MESSIMER, Laverne A. (Gl) HoJophane Co., Newark, Ohio METAL & THERMIT CORP. (George C. Betz) 100 Park Ave. Kew York 17, N. Y. METZ, G. F. (M) 816 Cypress Rd., Vero Beach, Fla. (Consulting Engineer) METZ, Gilbert F., Jr. 1203 State St., Rolla, Mo. METZGER, A. J. (Rl) Dept. of Ceramic Engineering Virginia Polytechnic Institute Blacksburg, Va. METZGER, H. C. (M) E. E. Zimmerman Co. 1704 Keenan Bldg., Pittsburgh 22, Pa. MEt:LI, 2nd Lt. William P. Wright Air Development Center Area B, Wright-Patterson AFB. Ohio MEXICO REFRACTORIES CO. (e. A. Smith) Better Refractories Bldg Mexico, Mo. MEYER, George W. (G) Glenshaw Glass Co., Inc. Glenshaw, Pa. MEYER, G. Robert (G) 529 N. Imboden St., Apt 302 Alexandria, Va. (LibbeyOwens-Ford Glass Co.) MEYER, L. S. (5) Hydraulic-Press Brick Co. 705 Olive St., St. Louis I, Mo. MEYER, William W. (W) R. R. 1, Box 632, Annandale. Va. (U. S. Tariff Commission) MEYERHOFER, E. A. Meyerhofer & Co., Forchstrasse 2 Zurich 32, Switzerland MEYERSCHOLER, Hans Carl Spittelerstrasse I Liestal, Switzerland (Tonwerk Lausen AG) MEYSEL, John J. Refracton Ltd. Zurich 2 Genferstrasse, Zurich, Switzerland MICHAEL, Frank L. (EI) 319 Norbourne Blvd., St. Matthews Louisville 7, Ky. (Gen~ral Electric Co.) . MICHAEL, Harold J. (E) Cia. Industrial del Norte Apartado 226, Saltillo, Coah., Mexico MICHEL, Howard (E) Porcelain Enamel, Inc. 80 S. Dover, Denver IS, Colo. MICHEL, S. Etablissements G. Devineau 26, rue Lafayette, Paris 9, France MICHELOTTI, Joseph E. (EI) 164 E. Essex Ave., Lansdowne, Pa. (Vitro Mfg. Corp.) MICHENER, John William (G) Research Laboratory Owens-Corning Fibergla~ Corp. Newark, Ohio MICKWITZ, Alexander von (B) 701 Main St., Latrobe, Pa. (StupakC'ff Dh., Carborundum Co.) MIDDLESWARTH, Earl T. (G) 7 Moody St., Amesbury, Mass. ( CBS.Hytron) MIDDLETON, George J. (M) L. H. Butcher Co. 3628 E. Olympic Blvd. Los Angeles 23, Calif. MIDGETTE, Willard B. (M) Eagle-Picher Co., Chemical Div. 1501 Oliver Bldg., Pittsburgh 22, Pa. MIKE, Thomas M. 40 West St., Hornell, N. Y. MILANI, Helio Box 926, Alfred, N. Y. MILDWOFF, Ben (G) Bent Glass Works, Inc. 85-25 126th St. Richmond Hill 18, N. Y. ~llLILLO, Frank A. (EJ) 167 Lexington St. East Boston 28, Mass. (Arthur D. Little, Inc.) MILLAR, N. S. C. Frit Factory Radiation Group Sales Ltd., Grappenhal "'orks \\'arrington, Lanes., England !>llLLER, Alan D. 542 E. 83rd St.. Seattle, Wash. MILLER, B. L. (W) Royal China, Inc., Sebring, Ohio MILLER, Boyd C. (M) Miller Equipment Co. Box 1566, Salisbury, N. C. MILLER, E. R. (W) Washington Porcelain Co. Willow St., Washington, N. J. MILLER, Fred W. (R) Franklin Manor, 114 Franklin 51. Bldg. 8, Apt. B-2, Morristown, N. J. (Carborundum Co.) MILLER, Grant E. (EI) Ferro Corp., 4150 E. 56th St. Cleveland 5, Ohio MILLER, Harold (E) 5736 N. Talman Ave., Chicago 45, Ill. (Ohmite Mfg. Co.) MILLER, Harold D. (M) 189 Circle Dr., Plandome Manor Long Island, N. Y. (B. F. Drakenfeld & Co., Inc.) MILLER. Henry E. (R) Chicago Wheel & Mfg. Co. 1101 W. Monroe St.. Chicago 7, 111. MILLER, Howard L. (Rl) Libbey-Owens-Ford Glass Co. Box 4278. Charleston, W. Va. MILLER, James L. (R) 131 Peach St., Park Forest, Ill. (1'orton Co.) MILLER, John B. (MI) Third St., Lewiston, N. Y. (Titanium Alloy Mfg. Div., l'ational Lead Co.) MILLER, John W. (W) New Castle Refractories Co. New Castle, Pa. MILLER, Jorge Smith Casilla 187, Cristalerias de Chile S. A. Santiago, Chile MILLER, Marlin, Jr. 1733 Southwood Ave., South Bend, Ind. MILLER, Maurice, Jr. (X) 484 E. Beechwold Ave. Columbus 14, Ohio MILLER, O. E. (R) Pyro Refractories Co. Box 488, Oak Hill, Ohio MILLER. Ralph E. (G) 365 Glen Ave., Elmira, 1'. Y. (Corning Glass Works) MILLER, Robert A. (GF) 1211 Carlisle St., Tarentum, Pa. (Pittsburgh Plate Glass Co.) MILLER, Russel A. (WI) 251 E. Rockland St. Philadelphia 20, Pa. (Frankford Arsenal) MILLER, R. V. (W) Sovereign Potters Ltd. 282 Sherman Ave. N. Hamilton, Ont., Canada MILLER, R. W. (G) Columbia Southern Chemical Corp. One Gateway Center, Pittsburgh 22, Pa. MILLER, Vincent P. (M) Miller PotteT}' Engineering Co. 2300 Palmer St. Swissvale, Pittsburgh 18, Pa. ROSTER 73 I, MILLER, W. D. (G) Owens-Illinois, Box 1019 Oakland 4, Calif. MILLER, William A. (R) Carborundum Co., Falconer, N. Y. MILLER, William A. 306 E. Madison St., Gibsonburg, Ohio LLICAN, Kenneth L. (R) Aluminum Co. of America 3300 Missouri Ave., East St. Lou;", Ill. MILLIGA~, Chester E. (R) Electro Refractories & Abrasi"es Corp. 4814 Lorna Vista Ave. Los Angeles, Calif. MILLIGA~, Lowell H. (B) ~orton Company, One Kew Bond St. \"orcester 6, Mass. MILLIKEK, Edward C. (51) 444 W. North Ave. East Palestine, Ohio (l\atco Corp.) MILLIKE~, Frank H. (5) Bowerston Shale Co., Bowerston, Ohio MILLIKE~, Joseph E. (5JI) 1308 South St., Pottstown, Pa. (Robinson Clay Product Co.) MILLIKE!\, William M. Cleveland Museum of Art Cleveland 6. Ohio MILLIKEX, William L. (SJ) Box 23. Bowerston. Ohio MILLMAN, Nathan (M) J. M. Huber Corp., Huber, Ga. MILLS, G. Alexander (B) Houdr)' Process Corp., Box 427 Marcus Hook. Pa. MILLS, R. Gerald' B) General Electric Co. Commonwealth Edison Project 2155 S. First St.. San Jose, Calif. MILTON BRICK CO., LTD. (D. T. Green) Box 554 Milton, Ont., Canada 4f,~ARD. Richard A. (B) Brookfield Engineering Labs .. Inc. 240 Cushing St., Stoughton, Mass. I!\ER, Reginald R. (R) 412 W. Chestnut Ave., Metuchen, N. J. (Carborundum Co.) MINK, John D. (G) R. R. 2. Dunkirk, Ind. (Armstrong Cork Co.) MINNICK, L. John (R) 306 Boyer Rd.. Cheltenham. Pa. (G. & W. H. Corson) MIKSHALL. John B. (R) Kaiser Aluminum & Chemical Sales, Inc. 3 Gateway Center. Pittsburgh 22. Pa. MI!\TOK, G. Z. (GI) Pittsburgh Plate Glass Co. Research Lab . Creighton, Pa. MISSBACH, George E. (M) Morehouse Industries 707 Henry Grady Bldg., Atlanta, Ga. MISSISSIPPI GLASS CO. (Charles J. Youngblood, Jr.) 88 Angelica St., St. Louis 7, Mo. MITCHELL, Lane (BF!) School of Ceramic Engineering Georgia Institute of Technology Atlanta. Ga. ~nTCHELL, Russell G. (M) R. R. 1, Dutch Ridge Rd. Beaver, Pa. (McD.mel Refractory Porcelain Co.) MITOFF, Stephan P. (B) General Electric Co., Res. Lab. Metallurgy & Ceramics Dept. Box 1088, Schenectady, N. Y. MITRA, H. K. (I) 12 A Road East Jamshedpur E.R., India (Tata Iron & Steel Co., Ltd.) IXER, William G., Jr. (W) 315 W. Lima St., Findlay, Ohio (Radio Corp. of America) MOCHEL, Mrs. Ellen Lunn (G) Corning Glass Works, Corning, N. Y. VOL. 35, Ko. 10 (1956) ~IOCHEL, John M. (B) 97 Hillcrest Dr., Painted Post, K. Y. (Corning Glass Works) MOCKRIK, Isadore (B) Pennsylvania Salt Mig. Co. Research & Development Div. Box 4388 Chestnut Hill P.O. Philadelphia 18, Pa. MOEBeS, C. R. (M) United Clay Mines Corp., Trenton, K. J. ~WFFAT, John, Jr. (R) 12255 Miranda St. North Holl)'\\:ood, Calif. (Gladding, McBean & Co.) MOFFAT, John \-V., Jr. (R) Babcock & Wilcox Co. 2730 Koppers Bldg., Pittsburgh 19, Pa. MOFFETT, Robert A. (RI) North American Refractories Co. 1012 !\ational.City E. 6th Bldg. Cleveland 14, Ohio ~10GEY, Leona (G) RaytheC'n Manufacturing Co. 55 Chapel St., ~ewton, Mass. MOH.-\:\TY, Gajendra Nath (I) 6 Kalimati Rd., E., Tatanagar, India MOBL, Helmuth (W) Fabrica de Loza "La Favorita" S.A. Palma Norte 308, Despacho 312 Mexico I, D. F. MOHLER. Neal F. (51) 206 Dogwood, Park Forest, Ill. (Industrial Publications, Inc.) MOHR, William C. (WI) Shenango China, Inc., New Castle, Pa. MOHUN, William A. (R) General Abrasive Co., Inc. 2000 College Ave., Niagara Falls, N. Y. MOLLER, J. Aall Porsgrunds Porselaensfabrik Porsgrund. Norway MO:\:\CK, A. J. (G) 287 Mortimer .'-,'e., Rutherford. K. J. (Consulting Engineer) MONAGLE, William T. (R) Lloyd Ave., Stanhope, N. J. (Reaction Motors, Inc.) MONET A, Fausto Via Mambretti 9, Milano, Italy' (Ditta Giuseppe Moneta) MOKG, Lewis E. (R) 8506 Loughborough PI. Chevy Chase 15, Md. (K ational Bureau of Standards) MOXIKGER, Richard E. (W) Harding Ave., East Liverpool, Ohio (Wellsville China Co.) MO:\KS, Douglas E. 133 Hillside Terrace. Irvington, N. J. MOKKS, J. R. (G) 4714 Harbord Dr., Toledo 13, Ohio (Owens-Illinois) MONROE, G. DeVon 3913 Whitland Ave., NashYille, Tenn. MO!\TAGNO, Antonio M. (E) 69 Glenmont Ave., Columbus 14, Ohio (Inland Engineering Co.) MONTGOMERY, Earle T. (WFI) 12 W. Jeffrey PI., Columbus 14, Ohio (Consulting Engineer) MOKTGOMERY, Eldwin C. (GI) Libbey-Owens-Ford Glass Co. Jewella Rd .. Shre"eport, La. MO~TGOMERY, Thomas B. (G) Pittsburgh Plate Glass Co. 632 Ft. Duquesne Blvd. Pittsburgh 22, Pa. MOKTGOMERY, Wayne C. (W) Aluminum Co. of America 230 Park Ave., New York 17, N. Y . MOODY, H. Leslie (D) Hyalyn Porcelain, Inc., Box 460 Hickory, N. C. MOODY, Willis E. (Bn School of Ceramic Engineering Georgia Institute of Technology Atlanta, Ga. MOONEY, Edward L. (W) General Laboratory Assoc., Inc. Norwich, N. Y. MOORE, Carleton B. 391 S. Wilson Ave., Pasadena, Calif. MOORE, Charles H. (B) P. R. Mallory & Co. 3029 E. Washington St. Indianapolis 6, Ind. MOORE, Dwight G. (EFI) Mineral Products Division National Bureau of Standards Washington 25, D. C. MOORE, H. Dept. of Glass Technology Universitv of Sheffield Elmfield, 'Northumberland Rd. Sheffield 10, England MOORE, Henry (G) 38 Potter Ave. West New Brighton Staten Island, N. Y. (Metro Glass Co.) MOORE, James M. (S) Ashe Brick Co., Van Wyck, S. C. ~100RE, John G. (W) 405 E. Poplar St., Robinson 2, Ill. (Case Mfg. Corp.) MOORE, Matthew S. Pre-Fab. 241, Clemson College Clemson, S. C. MOORE & MUNGER (Murray Rushmore, Jr.) 33 Rector St. New York 6, N. Y. MOORE, Richard S. (RI) Harbison-Walker Refractories Co. 1800 Farmers Bank Bldg. Pittsburgh 22, Pa. MOORE, Robert E. 1607 Campus Rd., Toledo 6, Ohio MOORE, Robert F. (R) 3345 Forbes St., Pittsburgh 13, Pa. (Jones & Laughlin Steel Co.) MORAN, J. J. (G) Landis Ave. & Spring Rd. Vineland, N. J, (Kimble Glass Co.) MORELL, K. L. (R) 313 Union Bank Bldg., Bethlehem. Pa. (N. L. Morell Co.) oMOREKA, Alfred (WI) 90 Hazel St., Hton , N. J. (Mucon Corp.) MORESCO, Albert J. Gen. Del., Alfred, N' Y. MORGAN, John M. (WJ) 42 Laurel Dr., Scranton. Pa. (General Electric Co.) MORGAN, Raymond W. (R) R. W. Morgan Co., 11695 Woodbine Detroit 39, Mich. MORGAK, Reginald W. (G) Ball Brothers Co., Inc., Muncie, Ind. MORGAN, Robert A. (WI) Pass & Seymour, Inc., Syracuse, N. Y. MORGAN, Stuart F. (WI) "Marshnere", Mattapoisett Neck Rd. Mattapoisett, Mass. O. 1. Paulding, Inc.) MORGAN, Willard L. (G) 1203 Moundview Ave., Kewark, Ohio (Owens-Corning Fiberglas Corp.) MORGAK, W. R. (G) Sterling Grinding Wheel Co. Box 801. Tiffin, Ohio MORNJN, Bob L. (WI) 3885 Pierce, Wheat ridge, Colo. (Coors Porcel ain Co.) MORREK, Georges 42 Bd Guillaume Van Haelen Forest, Brussels, Belgium (Diamant Boart) MORRIS, Ernest D. 15 Irby Rd., Heswall, Cheshire, England (Morgan Refractories Ltd.) MORRIS, George J. (E) Research Dept. Ferro Corp. 4150 E. 56th St., Cleveland 5, Ohio ROSTER 75 ,i f ,I -l I ~., ,~. ~ I I: !. ,i"'t" . "i MILLER, W. D. (G) Owens-Illinois, Box 1019 Oakland 4, Calif. MILLER, William A. (R) Carborundum Co., Falconer, N. Y. MiLLER, William A. 306 E. Madison St., Gibsonburg, Ohio LICAN, Kenneth L. (R) Aluminum Co. of America 3300 Missouri A,e., East St. Loui>, Ill. MILLIGAX, Chester E. (R) Electro Refractories & Abrasives Corp. 4814 Lorna Vista Ave. Los Angeles, Calif. MILLIGAX, Lowell H. (B) Norton Company, One Kew Bond St. \Vorcester 6, Mass. MILLIKEN, Edward C. (51) 444 W. North Ave. East Palestine, Ohio (Katco Corp.) MILLIKEX, Frank H. (5) Bowerston Shale Co., Bowerston, Ohio MILLIKEK, Joseph E. (SJI) 1308 South St., Pottstown, Pa. I Robinson Clay Product Co.) MILLIKEN, William M. Cleveland Museum of Art . Cleveland 6, Ohio MILLIKEX, William V. (SJ) Box 23. Bowerston. Ohio MILLMAN, Nathan (M) J. M. Huber Corp., Huber, Ga. MILLS, G. Alexander (B) Houdl)' Process Corp., Box 427 Marcus Hook, Pa. MILLS, R. Gerald (B) General Electric Co. Commonwealth Edison Project 2155 S. First St., San Jose, Calif. MILTON BRICK CO., LTD. (D. T. Green) Box 554 Milton, Ont., Canada eMIXARD. Richard A. (B) Brookfield Engineering Labs., Inc. 240 Cushing St., Stoughton, Mass. 'ER, Reginald R. (R) 412 W. Chestnut Ave., Metuchen, N. ]. (Carborundum Co.) MINK, John D. (G) R. R. 2, Dunkirk, Ind. (Armstrong Cork Co.) MINKICK, L. John (R) 306 Boyer Rd., Cheltenham, Pa. (G. & W. H. Corson) MINSHALL, John B. (R) Kaiser Aluminum & Chemical Sales, Inc. 3 Gateway Center, Pittsburgh 22, Pa. MINTON, G. Z. (GI) Pittsburgh Plate Glass Co. Research Lab., Creighton, Pa. MISS BACH, George E. (M) Morehouse Industries 707 Henry Grady Bldg., Atlanta, Ga. MISSISSIPPI GLASS CO. (Charles J. Youngblood, Jr.) 88 Angelica 51., St. Louis 7, Mo. MITCHELL, Lane (BFI) School of Ceramic Engineering Georgia Institute of Technology Atlanta, Ga. MITCHELL, Russell G. (M) R. R. 1, Dutch Ridge Rd. Beaver, Pa. (McDanel Refractol)' Porcelain Co.) MITOFF, Stephan P. (B) General Electric Co., Res. Lab. Metallurg)' & Ceramics Dept. Box 1088, Schenectady, N. Y. MITRA, H. K. (I) 12 A Road East Jamshedpur E.R., India (Tata Iron & Steel Co., Ltd.) IXER, William G., Jr. (W) 315 W. Lima St., Findlay, Ohio (Radio Corp. of America) MOCHEL, MIS. Ellen Lunn (G) Corning Glass Works, Coming, N. Y. VOL. 35, No. 10 (1956) MOCHEL, John M. (B) 97 Hillcrest Dr" Painted Post, N. Y. , (Corning Glass Works) MOCKRIN, Isadore (B) Pennsylvania Salt Mig. Co. Research &: De\lelopment Di\'. Box 4388 Chestnut Hill P.O. Philadelphia 18, Pa, MOEBVS, C. R. (M) United Clay Mines Corp., Trenton, K. J. MOFFAT, John, Jr. (R) 12255 Miranda SI. North Hollywood, Calif. (Gladding, McBean & Co.) MOFFAT, John W., Jr. (R) Babcock & Wilcox Co. 2730 Koppers Bldg., Pittsburgh 19, Pa. MOFFETT, Robert A. (RI) ~orth American Refractories Co. 1012 National Cit~ E. 6th Bldg. Cleveland 14, Ohio ~10GEY, Leona (G) Raytheon Manufacturing Co. 55 Chapel St .. Xewton, Mass. MOHAXTY, Gajendra Xath (I) 6 Kalimati Rd., E., Tatanagar, India MOHL, Helmuth (W) Fabriea de Loza "La Favorita" S.A. Palma Norte 308, Despacho 312 Mexico I, D. F. ~WHLER, Neal F. (SI) 206 Dogwood, Park Forest, Ill. (Industrial Publications, 11'c.) MOHR, William C. (WI) Shenango China, Inc., New Castle, Pa. MOHUN, William A. (R) General Abrasive Co., Inc. 2000 College Ave., Niagara Falls, N. Y. MOLLER, J. Aall Porsgrunds Porselaensfabrik Porsgrund, Norway MOXACK, A. J. (G) 287 Mortimer Ave., Rutherford, N. J. (Consulting Engineer) MONAGLE, William T. (R) Lloyd Ave., Stanhope, N. J. (Reaction Motors, Inc.) MOXETA, Fausto Via Mambretti 9, Milano, Italy (Ditta Giuseppe Moneta) MOXG, Lewis E. (R) 8506 Loughborough PI. Chevy Chase 15, Md. (National Bureau of Standards) MONINGER, Richard E. (W) Harding Ave., East Liverpool, Ohio (Wellsville China Co.) MONKS, Douglas E. 133 Hillside Terrace, In'ington, N. J. MOKKS, J. R. (G) 4714 Harbord Dr., Toledo 13, Ohio (Owens- IlIinois) MOXROE, G. DeVon 3913 Whitland Ave., Nashville, Tenn. MOKTAGNO, Antonio M. (E) 69 Glenmont Ave., Columbus 14, Ohio (Inland Engineering Co.) MONTGOMERY, Earle T. (WFI) 12 W. Jeffrey PI., Columbus 14, Ohio (Consulting Engineer) MONTGOMERY, Eldwin C. (GI) Libbey-Owens-Ford Glass Co. Jewella Rd., Shreveport, La. MOKTGOMERY, Thomas B. (G) Pittsburgh Plate Glass Co. 632 Ft. Duquesne Blvd. Pittsburgh 22, Pa. MOX'TGOMERY, Wayne C. (W) Aluminum Co. of America 230 Park Ave., New York 17, N. Y. MOODY, H. Leslie (D) Hyalyn Porcelain, Inc., Box 460 Hickory, N. C. MOODY, Willis E. (Bl) School of Ceramic Engineering Georgia Institute of Technology Atlanta, Ga. MOONEY, Edward L. (W) General Laboratory Assoc., Inc. Norwich, N. Y. MOORE, Carleton B. 391 S. Wilson Ave., Pasadena, Calif. MOORE, Charles H. (B) P. R. Mallory & Co. 3029 E. Washington St. Indianapolis 6, Ind. MOORE, Dwight G. (EFI) Mineral Products Division National Bureau of Standards Washington 25, D. C. MOORE, H.. Dept. of Glass Technology University of Sheffield Elmfie1d, Northumberland Rd. Sheffield 10, England MOORE, Henry (G) 38 Potter Ave. West New Brighton Staten Island, N. Y. (Metro Glass Co.) MOORE, James M. (5) Ashe Brick Co., Van Wyck, S. C. }WORE, John G. (W) 405 E. Poplar St., Robinson 2, Ill. (Case Mfg. Corp.) MOORE, Matthew S. Pre-Fab. 241, Clemson College Clemson, S. C. MOORE & MUNGER (Murray Rushmore, Jr.) 33 Rector 51. New York 6, N. Y. MOORE, Richard S. (RI) Harbison-Walker Refractories Co. 1800 Farmers Bank Bldg. Pittsburgh 22, Pa. MOORE, Robert E. 1607 Campus Rd., Toledo 6, Ohio MOORE, Robert F. (R) 3345 Forbes St., Pittsburgh 13, Pa. (Jones & Laughlin Steel Co.) MORAN, J. J. (G) Landis Ave. & Spring Rd. Vineland, N. J. (Kimble Glass Co.) MORELL, N. L. (R) 313 Union Bank Bldg., Bethlehem, Pa. (N. L. Morell Co.) MORENA, Alfred (WI) 90 Hazel St., Difton, N. J. (Mucon Corp.) MORESCO, Albert J. Gen. Del.. Alfred, N. Y. MORGAX', John M. (WJ) 42 Laurel Dr., Scranton. Pa. (General Electric Co.) MORGAX', 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. MORGAN, Stuart F. (WI) "Marshnere", Mattapoisett Neck Rd. Mattapoisett, Mass. (J. I. Paulding. Inc.) MORGAN, Willard L. (G) 1203 Moundview Ave., Newark, Ohio (Owens-Corning Fiberglas Corp.) MORGAK, W. R. (G) Sterling Grinding V.'beel Co. Box 801, Tiffin, Ohio MORNIN, Bob L. (WI) 3885 Pierce, Wheatridge, Colo. (Coors Porcelain Co.) MORREN, Georges 42 Bd Guillaume Van Haelen Forest, Brussels, Belgium (Diamant Boart) MORRIS, Ernest D. 15 Irby Rd., Heswall, Cheshire, England (Morgan Refractories Ltd.) MORRIS, George J. (E) Research Dept., Ferro Corp. 4150 E. 56th St., Develand 5, Ohio ROSTER 75 ,. MORRIS, Irvine H. (W) Ferro Corp., 4150 E. 56th St. Oeveland, Ohio MORRIS, John L. (W) 14427 Allingham, Norwalk, Calif. 1IurOChrome Decalcomania Co., Inc.) S, W. C. (G) 1 Mayfield Ridge, Cleveland 24, Ohio arshaw Chemical Co.) MORRISON, Boone H. (G) B. F. Drakcnfeld & Co., Inc. Box 519, Washington, Pa. MORRISOX, Neil T. (M) Bell Research, East Liverpool, Ohio MORRISON, R. F. (M) 384 Gulf Rd., Elyria, Ohio (Harshaw Chemical Co.) MORRlS0X, Wallace S. (M) Illinois 'Vater Treatment Co. 840 Cedar St., Ro~kford, III. MORSE, Arthur E. (GJ) 2735 Woodstock, Columbus, Ohio (Federal Glass Co.) MORSE, Oifford 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. (S. W. Rapp, Jr.), 315 W. Jefferson St. Morton, Ill. MORTON, Wi1liam A. (G) 46 Standish Blvd., Mt. Lebanon Pittsburgh 28, Pa. (Loftus Engineering Corp.) MOSAIC TILE CO. Zanesvi1le, Obio MOSER, Berthold B. Industria Ceramica, Ltda. Apartado Aereo 4829, Bogota. Colombia MOSER, John B. (B) 943 Ashland Ave., Evanston, Ill. 'orthwestern University) R, John L. (Rn 210 Acorn Dr., Dayton 9, Ohio (W. H. Kiefaber Co.) MOSS, LeRo)' L. (Ell 3553 Ingleside Rd. Shaker Heights 22, Ohio (Ferro Corp.) MOTSCH. F. R. (G) Fo<ter-Forbe. Glase Co .. Marion. Ind. MOULD, Richard E. (G) Preston Labs.. Box 149, Butler, Pa. MOL:LD, W. J. (W) Steubenville Potter)' Co., Box 1030 Steubenville, Ohio MOUNT CLEMENS POTTERY CO. (Charles E. Doll) Mount Oemcns. Mich. MOURAUD, Paul H. (W) 14 Ingleside Rd. Upper Montclair. N. J. (Page-Madden Co.) MOWREY, Fred W. (GI) 108 Rodgers Dr., New Kensington, Pa, (American Window Glass Co.) MUAN, Arnulf (B) Pennsylvania State University 23 Mineral Sciences Bldg. University Park, Pa. MVCCIGROSSO, Angelo Box 716, Alfred, N. Y. MUELLER, Edward E. (RI) School of Mineral Engineering University of Washington Seattle 5, Wash. MUELLER, Ferd A. (R) 1360 Rudd, Canon City, Colo. ~LL(EFrReem,anJaFmieres Brick Co.) 1. (BI) .,feramic Engineering Division University of Washington Seattle 5, Wash. Ml'ELLER, John P. (M) 120 Hoffman An., Trenton, N. J. (Mueller Machine Co.) VOL. 35, No. 10 (1956) ~CLL, Lee R. (G) Owens-Corning Fiberglas Corp. , Barrington, N. J. MULLADY, Russell E. (M) 459 E. High St., New Philadelphia, Ohio (Titanium Alloy Mfg. Div., National Lead Co.) MULLAN, Joseph (S) Champion Brick Co. 7600 Pulaski Highway Baltimore 6, Md. MCLLEN, Willard F. (M) Klinger Heights,' State College, Pa. (Curtiss-Vl'right Corp.) MULLER, Gerhard Staatliche Porzellan-Manufaktur Berlin Hartmannstrasse 1-3 (13a) Selb/Oberfr. U. S. Zone, Germany MCLLER, Max (RI) Basic, Inc., 845 :Hanna Bldg. Cleveland IS, Ohio MCLLER, Robert Email1erie de St. Maurice 29, Rue du Val d'Osne St. Maurice (Seine), France MULLIGAN, Edwin F. (E) Jones Metal Products Co. Weet Lafayette. Ohio MULLITE REFRACTORIES CO. (Edward L. Bohn) 10 C:mal St., Shelton, Conn. MCLROY, James P. (EI) 965 Lafayette Ave., Buffalo 9, N. Y. (Buffalo School Dept.) MULRYAN, Henry (W) Sierra Talc & Oav Co. Box 390, South Pasadena, Calif. MULVANE, O. E. (E) 4138 N. 21st St., Milwaukee 9, Wisc. (A. O. Smith Corp.) MUNDY. O. S. (W1) 426 Park Ave., Wheaton, III, (Western Electric Co.) MURGATROYD. John B, Rockware Glass. Ltd., Rockware Ave. Greenford. MirMlesex. England MURPHY. Edward J. (W) Charles B. Chrystal Co., Inc. 53 Park PI., New York 7, N. Y. MURPHY. Harry T. (R) Oima Fire Brick Co.. Oimax, Pa. MURPHY, Remington M. (W) 7744A WaltTler Way Lynnewood Gardens Elkins Park 17, Pa. (International Resistance Co.) Mt"RRAY, Ernest L. (M) TTnited States Cerami~ Tile Co. East Sparta, Ohio MCRRAY, Haydn H. (B) 1209 Maxwell Ln.. Bloomington, Ind. (Indiana University) MURRAY. Louis J. Vaal Potteries, Ltd.. Box 49 Meyerton, Transvaal. South Africa MURRAY, Maurice A. (WI) Redrling Place, Towaco, N. J. (8. G. Corp.) MCRRAY, Maurice J. (B) Vniversal Oil Products Co. 30 Algonquin Rd" Des Plain.:s, 111. MURRAY, Robert S, (G) B. F. Drakenfeld & Co., Inc. Washington, Pa. MUSSELMAN, H. G. (G) 4413 Old Frederick Rd. Baltimore 29, Md. (Carr.Lowrey Glass Co.) MVTTITT, F. C. (R) Algoma Steel Co'll. Sault Ste. Marie, Ont., Canada MYCALEX CORP. OF AMERICA (Richard A. Humphrey) Box 311, Clifton, N. J. MYERS, C. H. (S) Utah Fire Oay Co. Box 127, Salt Lake City, Utah MYERS, Charles V. (W) Eljer Co., Third Ave., Ford City, Pa. MYERS, Thomas J. (G) 2625 Seventh Ave., Altoona, Pa. (Sylvania Electric Products, Inc.) MYERS, Wilbur C. (B) 2711 W. 129th St., Gardena, Calif. (National Cash Register Co.) MYERSON, Martin (W) Myerson Tooth Corp. 90 Hamilton St., Cambridge, Mass. MYGDAL, Rolf L. (W) 1460 Painter Circle, Apt. 3 St. Laurent, Que., Canada (Pilkington's Tiles, (Canada) Ltd.) MYIKT, Maung S. Box 288, State College, Pa. MYIKT, Simon M. K. (S) University of Pennsylvania 3400 Spruce St., Philadelphia 4, Pa. N :\ADLER, Marion R. (B) 5825 Enright Ave., Dayton 3. Ohio (Wright-Patterson Air Force Base) :\AGAK, Harold R. 8132 Sepulveda PI., Van Nuys, Calif. NAKAMURA, H. Henry (B) Armour Research Foundation of lllinoiInstitute of Technology 3427 S. Federal St., Chicago 16, Ill. :\AKAMrRA, Yoshikazu Shoko Glass Co., Ltd. 1. 4-chome, Ginza Chuo-ku, Tokyo, Japan !'\ANCE, Taylor E. (R) 5223 Alder Dr., Mission, Kans. (Owens-Corning Fiberglas Corp.) KAPlER, John B. (S) 3574 Napier Ave., Macon, Ga. (Cherokee Brick & Tile Co.) !'\APOLITANO, Albert (G) National Bureau of Standards Dept. of Commerce Conn. Ave. & Van Ness St. Washington 2S, D. C. NARASIMHAN, Malur D. Rm. 4-051, Ceramics Div. Massachusetts Institute of Tech. Cambridge 39, Mass, NASH, Harold S. (DF) University of Cincinnati Ceramics Dept., Cincinnati 21, Ohio NASH, 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 DIV. (E. B. Renby) 549 W. Washington Blvd. Chicago 6, lll. NATIONAL INDUSTRIAL SAND ASSN, (V. P. Ahearn) Munsey Bldg., Washington 4, D. C. NATIONAL LEAD CO. (Alex Stewart) 111 Broadway, New York 6, N. Y. NATIONAL LIME AND STONE CO. (L. G. Love) First National Bldg. Findlay, Ohio NATIONAL REFRACTORIES CO.. INC. (R. A. Hitchins) 17th Floor Lewis Tower Bldg., 225 S. 15th St. Philadelphia 2, Pa. NATIONAL RESEARCH CORP. (Philip J. Oough) 70 Memorial Dr. Cambridge 42, Mass. KAl'DOT, Jacques Cerabati, 10 Rue Pasteur Pont Sainte Maxence (Oise), France NAVIAS, Louis (BF) Research Lab., General Electric Co. The Knolls, Schenectady, N. Y. ROSTER 77 r, I NAVRATIEL, Hans Jahnstr. 3, LaufjPegnitz Bavaria, Germany (Sembach & Co) NEAL, James E. (R) 164 Sandford Ave. NOrth Plainfield, N. J. Johns-Manville, Inc.) LON, Terence P. Edward Curran Engineering, Ltd. Cardiff, Wales NEDREBERG, Roy E. G. (XJ) 315 Putnam Ave., Zanesville, Ohio NEEL, Lee, III Box 2546, Georgia Tech., Atlanta, Ga. KEELY, Homer E., Jr. (G) 404 E. 11th Ave., Tarentum, Pa. (Pittsburgh Plate Glass Co.) NEFF, Edward D. (R) Box 205, Templeton, Pa. (Harbison-Walker Refractories Co.) KEFF, John M. (S) Armour Research Foundation 10 W. 35th St., Chicago 16, III. NEIMAN, Robert (R) Whip-Mix Corp., Inc. 411 W. Avery Ave., Louisville 8, Ky. KELSON, Forrest W. (E1) A. O. Smith Corp., 3533 N. 27th St. Milwaukee I, Wise. KELSOK, James A. (R) t.' niversity of Illinois 204 Ceramics Bldg., Urbana, Ill. KELSOK, Richard P. 85ZQ-32nd Ave., N. W. Seattle 7, "'ash. KELSO!\', Robert E. (G) 20 Spring St., Seneca Falls, N. Y. (Sylvania Electric Products, Inc.) NELSON, Robert T. (R) Columbia-Geneva Steel Co. Box 510, Provo, l'tah NELSOK, William 1. (G) 118 Mary St., Binghamton, N. Y. _ soh-ay Process Div., llied Chemical & Dye Corp.) _ ENSTONE. Marc (B) 10232 Frankstown Rd. Pittsburgh 35, Pa. (Westinghouse Electric Corp.) KETTER, William S. (G) Keystone Abrasive "'heel Co. Gregg & Hammond Aves., Carnegie, Pa. KETZSCH, Erich Maschinenfabrik Gebrueder Ketzsch Werkstrasse 19 Selb (Bayern), Germany KEW, Ryland J. (S) National Sewer Pipe Ltd. Box 36, Oakville, Ont., Canada KEW ARK, Frank F. (W) Aluminum Co. of America 1450 Terminal Tower Cleveland 13, Ohio KEWARK, Martin (M) Simonds Abrasive Co. Tacony & Fraley Sts. Philadelphia 37, Pa. NEWBOLD GENERAL REFRACTORIES, LTD.. Gavey St. Mayfield, N. S. W., Australia NEW CASTLE REFRACTORIES CO. (R. W. Rowland) New Castle, Pa. KEWCOMB, Rexford, Jr. (EI) 915 Dodge, Lake Geneva, Wise. (RX Chemical Co.) NEW JERSEY PORCELAIN CO. (J. M. Gilfillan) Box 908 Trenton 5, N. J. NEWKIRK, Terry F. (B) General Electric Co. Power Tube Dept. Schenectaci}', !\. Y. . WTON, Avery C. (R) The Refractories Institute First National Bank Bldg. Pittsburgh 22, Par VOL. 35, No. 10 (1956) KICHOLSOK, Albert H. (D) Federal Glass Co. SIS Innis Ave., Columbus 7, Ohio ~IEMAN, A. H. (G) Ohio Lime Co., Woodville, Ohio NIELSEN, H. Bach .(M) Nichols Engineering & Research Corp. 70 Pine St., New York 5, N. Y. NIKLEWSKI, B. K. Main Enamel Mfg. Co., Ltd. Gothic Works, Angel Rd. Edmonton, London, K. 18, England NILES FIRE BRICK CO. (Carey E. Lindsay) 165 E. Park Ave., Niles, Ohio NIPPON TOKI KAISHA, LTD. (Jun Isagawa) #1, Noritakeshinmachi, Nishiku, Nagoya, Japan NISCLA. Chester A. (R) 716 Main St., Riverton, N. J. (Simonds Abrasive Co.) NIXEK, David (G) CBS-Hytron, Kent & Warren Sts. Kewburyport, Mass. KIYOGI, D. P. MIS Bengal Enamel Works Ltd. P. O. Bengal Enamel Palla (24 Parganas) West Bengal, India NOBES, Frederick L. Carborundum Co., Ltd., Trafford Park Manchester 17, England KOBLES, Eugene L. (E) 3714 Torrington Ave., Cleveland 29, Ohio (Ferro Corp.) NOBLES, Melvin A. (B) Oklahoma A. & M. College Mechanical Engineering Dept. Stillwater, Okla. KOCK, Charles J. (R) 315 Front St., Berea, Ohio (Nock & Son Co.) KODA, Tokiti Dept. of Applied Chemistry Faculty of Engineering Nagoya University Chikusa-ku, Nagoya. Japan NODL'RFT, Russ E. (W) 9353 Parrot, Downey, Calif. (Vernon Kilns) KOE, James T. (S) 41 I Madison Ave., Brookville. Pa. (Hanle~' Co.) NOHLE, Richard C. (S1) Claycraft Co. Box 866, Columbus 16, Ohio NOLAN. William F. Box 251, Alfred, N. Y. NORANTE, Nicholas J. (W) 609 Spring St., Latrobe, Pa. (Stupakoff Div.. Carborundum Co.) KORDBERG, Martin E. (GF) 134 E. Fourth S~., Corning, N. Y. (Corning Glass Works) KORDGREN, Harry Aktiebolaget Gustavsberg Fabriker Gustavsberg, Stockholm, Sweden NORDMEYER, Rudy L. (S) Valley Brick & Tile Co., Box 353 Mission, Texas NORDQUIST, Clarence E. 4328 Bagley Ave., Se<!ttle 3, Wash. NORDQUIST, Lawrence E. (BJ) Cornell-Dubilier Electric Corp. 1605 Rodney French Blvd. Kew Bedford, Mass. KORDYKE, J. S. (MF) Hammond Lead Products, Inc. 1602 Oliver Bldg., Pittsburgh 22. Pa. NORMAKDEAU, Pierre (D) 3660 Hutchison St. Montreal 18, Que., Canada NORRIS, Charles R. (W) 4024 Diehl Ave., Cincinnati 36, Ohio (Charbeaux Pottery) NORRISTHERMADOR CORP. (Edgar H. Freeman), 20118 E. Valley Walnut, Calif. NORTH AMERICAN PHILIPS CO., INC. (c. J. Woods) Research & Control Instruments Div. 750 S. Fulton Ave., Mt. Vernon, N. Y. NORTH AMERICAN REFRACTORIES CO. (Robert A. Moffett) 1012 Kational City E. Sixth Bldg. Cleveland 14, Ohio NORTHWESTERN GLASS CO. (Edward S. Campbell) 5801 E. Marginal Way, Seattle 4, \\ash. NORTHWESTERN TERRA COTTA CORP. (Burnette Purcell) 1750 Wrightwood Ave., Chicago 14; Ill. NORTOK, Charles L., Jr. (RF) Babcock & Wilcox Co., 161 E. 42nd St. New York 17, K. Y. NORTON CO. (0. J. Whittemore, Jr.) Worcester 6, Mass. KORTOK, Frederick H. (BFI) Dept. of Metallurgy Div. of Ceramics Mass. Institute of Technology Cambridge 39. Mass. NORTOK, George R. Pfaudler Co., Res. Lab. 1000 West Ave., Rochester, K. Y. KORWALK, Lt. Marshall H. (XJ) WADC Area "B", Box 8604 Wright-Patterson AFB, Ohio KORWOOD, J. Nelson (Life, X) Alfred Vniversit~, Alfred, N. Y. KOVY, Otto R. (E) Chicago Vitreous Corp. 1425 S. 55th Ct . Cicero SO, III. XOWAK, John M. (B) Bell Aircraft Corp" Box 1 Buffalo 5. K. Y. KOWELL, Dorroh L., Jr. (S) 202 Broad St., Augusta, Ga. I Merr~' Bros. Brick & Tile Co.) NCSSBAl:M. Theodore 170 Ellis Ave., Irvington, K. J. NYQl'lST. Roy A. (G) 3650 Beechwav Blvd.. Toledo 14, Ohio (Libbe\'-Owen~.Ford Glass Co.) o OAKLEY, W. W. (GF) Box 35, Corning, K. Y. (Corning Glass Works) O'BAKNON. L. S. (E) 2239 Farleigh Rd., Columbus 21, Ohio (Battelle Memorial Institute) OBERST, Clair R. (M) Industrial Ceramic Products, Inc. 965 W. Fifth Ave" Columbus 8, Ohio OBERST, Robert B. (I) 323 Weymouth Ln., Columbus 4, Ohio O'BRIEK, Neil H. (SJ) 20 Central Dr., Port Washington, N. Y. O'BRIEN. William F. (E) Hope Rd., Shrewsbur~', K. J. (American Potash & Chemical Co.) OCHS, A. C. BRICK & TILE CO. (Elmer E. Apt) Springfield, Minn. O'CONKELL, Thomas B. (G) Lihbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio O'COXNOR, Frank Box' 235. Alfred. N. Y. 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) B-3 Winship Gardens, Macon, Ga. (J. M. Huber Corp.) OESCH. Robert B. (S) 401 W. Carolanne Dr., Marshall, Texas (Marshall Brick Co.) ROSTER i9 OESTERLE, Henry (E) Roesch Enamel & Mfg. Co. W. Main & K. 24th Sts. Belleville, Ill. OESTERLE, Robert A. (E) 2427 W. Main, Belleville, III. (Roesch Enamel & Mfg. Co.) N, D. P. (5) gden Engineering Co. ox 218, Ottawa, III. OGDEK, Ellsworth P. (RF) Box 537, Granby, Colo. (Harrop Ceramic Service Co.) OGDEN, John T. (GF) Glass Illdustry 55 W. 42nd St., Kew York 36, N. Y. OGDEN, William D., Jr. (RI) Mackeyville, Pa. (Korth American Refractories Co.) OHIO BRASS CO. (J. J. Taylor) Barberton, Ohio OHIO CLAY CO. (Norman E. Denison) Box 1776, Cleveland 5, Ohio OHIO LIME CO. (A. H. Nieman) Woodville, Ohio OHLIGER, Lewis P. (G) 209 Ridgeview Dr. East Rochester, N. Y. (Bausch & Lomb Optical Co.) OHXSORG, Roger W. Box 1049, Alfred, K. Y. OHKYSTY, Basil (RJ) University of Illinois 204 Ceramics Bldg.. l'rbana, Ill. OLD HICKORY CLAY CO. (Lee F. Powell) Box 271, Paducah, Ky. O'LEARY, W. J. (R) 24 Seminole Ave., Claymont, Del. (E.!. du Pont de Nemours &: Co.) OLENCHU'K, Daniel L. (R) 1300 Laird Ave., Aliquippa, Pa. (Jones & Laughlin Steel Corp.) OLIVER, D. A. Messrs. Wm. Jessop & Sons Ltd. rightside Works, Sheffield, England ER, John C. (E) orcelain Enamel Institute 1145 19th St., N. W. Washington 6, D. C. OLIVERIO, William (G) Rolland Glass Co., Box 232 Clarksburg, W. Va. OLSEN, Eric (D) R. R. 63, Dundee, III. (Haeger Potteries, Inc.) OLSEN, John M. (G) E. 1. du Pont de Nemours & Co., Inc. Electrochemicals Dept. Wilmington 98, Del. OLSEN, Rangwald S. (EI) 1137 Grant St., Evanston, Ill. (Armour Research Foundation) OLSON, E. E. (G) A. H. Heisey & Co., Kewark, Ohio OLSON, H;almar Aktiebolaget Gustavsbergs Fabriker Gustavsberg, Sweden OLSOK, Ole A. (R) 5 Wrenwood Ct. V.'ebster Groves 19, Mo. (Laclede-Christy Co. Div. H. K. Porter Co.) ONONDAGA POTTERY CO. (R. H. Pass) 1856-58 W. Fayette St. Syracuse 4, N. Y. ORAVEC, Joseph A. (5) 3731 N. Newland Ave., Chicago 34, III. ORBAN, Edward (M) Monsanto Chemical Co. 710 N. 12th Blvd., St. Louis, Mo. i DWAY, Fred (B) ortland Cement Association Fellowship ational Bureau of Standards . 'ashington 25, D. C. OREFRACTION, INC. (Albert L. Kreuer) 7425 Thomas St. Pittsburgh 8, Pa. VOL. 35, No. 10 (1956) ORMSBY, Walter C. (W) National Bureau of Standards Washington 25, D. C. GRNELLA, LeRoy F. (GJ) 3206 Upton Ave., Toledo 6, Ohio (Glass Fibers, Ipc.) ORR, David B. R.R. 2, Oneonta, N. Y. ORTEPIO, Salntore (W) General Ceramics Corp., Crows Mill Rd. Keasbey, N. J. ORTH, Howard S. (W) Industrial Ce,am;c Prontlcts, Inc. 965 W. Fifth Ave., Columbus 8, Ohio ORTH, Howard S., Jr. (W) 236 Fairway Dr., Columbus, Ohio (Industrial Ceramic Products, Inc.) ORTMAK, Curtis D. (W) A C Spark Plug Div. General Motors Corp. 1300 N. Dort Hw)., Flint 2, Mich. ORTMAK, Fred B. (RFI) Gladding, McBean & Co. 1215 Harrison St. San Francisco 3, Calif. ORTON, EDWARD, JR., CERAMIC FOUNDATION (J. L. Carruthers) 1445 Summit St. Box 146, Sta. A, Columbus I, Ohio ORTON, Mrs. Edward, Jr. 39 W. Torrence Rd., Columbus, Ohio ORZANO, Michael J. (SI) Claycraft Co. Box 866, Columbus 16, Ohio OSBORN, Elburt F. (B) College of Mineral Industries Pennsylvania State University University Park, Pa. OSBORN, Walton O. (R) North American Refractories Co. Water St., Lock Haven, Pa. OSBORNE, David G. Lemington Glass Works Ltd. Lemington Newcastle-on-Tyne 5. England OSTERHOLTZ, Carl (R) 5 Mayfield PI., Metuchen, N. J. (Valentine Diy., A. P. Green Fire Brick Co.) OSTRANDER, Eugene C. (G) Kopp Glass, Inc. Box 8255. SwisS'ale. Pittsburgh 18, Pa. OSTRAl\DER, Van R. (B) Endevco Corp. 161 E. California St., Pasadena, Calif. OTLEY, J. D. (S) John B. Kelly Inc. of Penn. 1720 Cherry St., Philadelphia 3, Pa. OTRHALEK, Joseph V. (W) Wyandotte Chemicals Corp. Wyandotte, Mich. OTTAWA SILICA CO. (George A. Thornton) Box 437 Ottawa, Ill. OTTO, George H. (5) 53 W. Jackson Blvd., Chicago 4, Ill. (Consultant) OTTO, William H. (G) Owens-Corning Fiberglas Corp. Newark, Ohio OTTOSON, Axel (GI) 4300 Highland Ave .. Shadyside, Ohio (Imperial Glass Corp.) OWEN, Frederick E. (R) Electrical Refractories Co. East Palestine, Ohio OWEN, J. D. R. Fowler, Ltd., Fitzroy St. Marrickville, Sydney. N.S.W., Australi~ OWENSCORNING FIBERGLAS CORP. (A. C. Siefert) Kewark, Ohio OWENSILLINOIS (W. D. Miller) Box 1019, Oakland 4, Calif. OWENSILLINOIS (E. W. Summers) Technical Center 1700 N. Westwood Ave., Toledo 7, Ohio OWENS, James S. (W) Champion Spark Plug Co., Ceramic Diy 8525 Butler Ave., Detroit II, Mich. OXLEY, Charles A. (WJ) 1508 Park St., Robinson, III. (Case Mfg. Corp.) P PABST, John G. (M) 552 N. Main St., Butler, Pa. (Saxonburg Ceramics) PACHL, Margaret (D) University of North Dakota Ceramics Dept., Grand Forks, N. D. PACIFIC CLAY PRODUCTS (John D. Fredericks) Box 2178, Terminal Annex Los Angeles 54, Calif. PACIFIC COAST BORAX CO. (M. H. Pickard) 100 Park Ave., ~ew York Ii, N. Y. PACKMAK, Willard D. (WI) E. M. Knowles China Co. East Liverpool, Ohio PADEN CITY POTTERY CO. (Merrill C. Sondles) Paden City, W. Va. PADFIELD, Ralph C. (R) 2990 Avon Rd., Bethlehem, Pa. (Bethlehem Steel Co.) PADILLA, Federico Apartado Postal 20783, Mexico, D. F. (Electroceramica, S. A.) PAFF, John A. (G) 232 N. Sixth St., Reading, Pa. (Willson Products, Inc.) PAFFORD, Ra)' W. (SFI) Acme Brick Co. Box 425, Fort Worth I, Texas PALADIKO, Albert E., Jr. Raytheon Mfg. Co., Res. Dh-. Waltham 54, Mass. PALMER, Delos M. (D) 4401 Jackman Rd., Toledo 12, Ohio (Delos M. Palmer & Associates) PALMER, Rufus !\. (M) 476 Broadmoor Ave., Pittsburgh 34, Pa. (Consultant) PALMER, Willard E. (SI) 768 !\. Cross St. Newcomerstown, Ohio (Clay City Pipe Co.) PALMERI, Victor R. (E) Hermetite Corp. 702 Beacon St., Boston IS, Mass. PALM OUR, Hayne III (BI) Box 204, Signal Mountain, Tenn. (American Lava Corp.) PALTZER, Clifford (X]) 1100 Peace St., Pella, Iowa PA~GELS, Alfred A. (W]) Ave. Polanco 18, Mexico 5, D. F. (Sanitarios "EI Aguila" S. A.) PAN 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) Katco Corp., Box 267, Cordova, Ala. PAPPIS, James 433 Brookline Ave., Boston 15, Mass. PARCEL, Martin W. (W) Robertson Mfg. Co. Box 848, Trenton 5, N. J. PARIKH, Niranjan M. (B) Metallurgy Dept. Scientific Laboratory Ford Molor Co., Dearborn, Mich. PARKER, Glidden M., Jr. (D) Glidden Pottery, Inc., Alfred, K. Y. PARKER, Harry (BI) 101 5 Quebec Terrace Silver Spring, Md. O'ational Bureau of Standards) PARKER, Henry F. (G) Pittsburgh Plate Glass Co. Creighton, Pa. ROSTER 8] PARKER. James W., Jr. (S) 721 i Shakespeare Rd. Columbia, S. C. (Carolina Ceramics, Inc.) PARKER, Leon (G) H. 1. Thompson Fiber Glass Co. 3 Cordo"a St., Los Angeles 7, Calif. p R, Raymond W. (S) ance Clay Product Co. x 746, Aliiance, Ohio PARKISO~. Robert G. :/Iioble Hall. Rm. 112, Champaign, Ill. PARMAK, Donald W. 2105 Seyenth AYe., X., Renton, Wash. PARMER, Jess H., Jr. (G) Owens-Illinois, Technical Center 1700 K. Westwood AYe., Toledo 7. Ohio PARNHAM, H. General Refractories Ltd. Worksop, England PARSON, James A. (WI) 6217 Broadway, Indianapolis 20, Ind. (Vitroseal Corp.) PARSONS, Douglas E. (S) Building Technology Diyision National Bureau of Standards Washington 25, D. C. PARSOKS, J. R. (R) Chicago Fire Brick Co. 7531 S. Ashland An .. Chicago 20, 111. PARTIKGTOK, Philip A. Box 787, Alfred, K. Y. PASCHAL. Forrest A. (S) Box 289, Siler Cit~. K. C. (Huber-Warco Corp.) PASK, Joseph A. (XFI) Division of Mineral Technology Universitv of California Berkele~' '4, Calif. PASPY, Stanley F., Jr. (R) Ceramic Supply Co., CrooksYille, Ohio PASS, J. S. (W) Pass &: Seymour, Inc., Solvay Sta. _ Boyd Ave., Syracuse 9, N. Y. R. H. (W) ondaga Pottery Co. 1856-58 W. Fayette St. Syracuse 4, N. Y. PASS & SEYMOUR, INC. 0. S. Pass) Solvay Station, 50 Boyd Ave. Syracuse 9, N. Y. PATEK, Sherwood E. (S) Midland Brick & Tile Co. Chillicothe, Mo. PATEL, Chandrakant J. Box 236, Alfred, K. Y. PATERSON, G. W. (Rl Refractories Engr. & Supplies, Ltd. 99 Clinton St., Hamilton, Ont., Canada PATRICK. Ens. Howard W. (X]) 1\AS Kingsville, SKA Kingsville, Texas PATRICK, Robert F. (EI) Pemco Corp. 2554 Greenmount Ave. Baltimore 18, Md. PATTERSO~, Richard C. (W) United States Ceramic Tile Co. East Sparta, Ohio PAULSON, Fred H. (R) 28 Greendale Ave., Worcester 6, Mass. (Norton Co.) PAVLISH, Arnold E. (GF) 2904 Clarkson Rd. Cleveland Heights 18, Ohio (Cleveland Supply Co.) PAWLOWSKI, Edward ]. (W) 11 Morris St., Amsterdam, 1\. Y. (Mica Insulator Co.) PEARCE, Charles S. (F) American Ceramic Society 5 K. High St., Columbus 14, Ohio H, Howard C. (WI) Hillcrest Manor. Midland, Pa. (Louthan Mfg. Co.) P~ARCH, Wi1liam M. (WI) Akron Porcelain Co., Akron 14, Ohio VOL. 35, No. 10 (1956) PEARSOK, Edward P. (X) Basic, Inc., 845 Hanna Bldg. Cleveland 15, Ohio PEARSON, E. J. & j., LTD. (Charles A. G. Thomas) Firebrick Works Stourbridge, Worc;, England PEASE, Philip J. (G) 1405 Washington Ave. Parkersburg, W. Va. (Demuth Glass Works, Inc.) PECHMAX, Alexander (WI) 1157 E. Pasadena, Pomona, Calif. (Pomona Tile Mfg. Co.) PECK, ]. Clair (SI) 2433 Brookside Ln., York, Pi<. (Glen-Gery Shale Brick Corp.) PECKHAM, George W. (G) Chattanooga Glass Co. Corsicana, Texas PECKHAM, Robert H .. (G) Pennsylvania Optical Co. 234 S. Eighth St., Reading, Pa. PEDRICK, W. W. (G) Armstrong Cork Co., Millville, N. ]. PEDU, Richard K. (MI) 129 Chestnut St., Garden City, N. Y. PEEL, G. K. Associated Lead Manufacturers Ltd. Crescent House Newcastle-on-Tyne, I, England PElLER, Karl E. (GF) Hartford-Empire Co. Div. Emhart Mfg. Co. Box 1620. Hartford 2, Conn. PEKAREK, Edward G. (Bl 4898 Waldamere Ave., Willoughby, Ohio (Thompson Products, Inc.) PELL. Robert E. 909 W. Ne"ada St.. t"rbana, Ill. PELZ, Robert W. (EI) 2706 Grovewood, Parma 9, Ohio (Ferro Corp.) PEMCO CORP. (Richard H. Turk) 5601 Eastern Ave., Baltimore 24, Md. PEKBERTHY, Larry (G) Penberthy Electromelt Co. 2317 47th S. W .. Seattle 16, Wash. PEKCE, Forrest K. (WFI) 1609 Scenic Dr .. Austin 3, Texas (Ceramic Societv of the South West) PENNSYLVANIA PULVERIZING CO. (\\'illiam J. Woods. Jr.) Two Gatewav Center Pittsburgh 22, Pa. PEKTECOST. Joseph L. 647 M~nticello Dr.. Falls Church, Va. PEREKY, Andrew (M) Pereny Equipment Co. 8~3 Chambers Rd. . Box 153. Station A. Columbus, Ohio PERKIKS. Harrell L. (M) Central of Georgia Railway Co. 1212 Rhodes-Haverty Bldg. Atl~.nta 3. Ga. PERKIKS, Walter W. (WI) 871 Jacoby Rd., Copley, Ohio (rnited States Stoneware Co.) PERRY. Paul E. (B) Allegheny Ludlum Steel Corp. Brackenridge. Pa. PERRY. Robert F. (WI) Box 283, Victor, K. Y. (Victor Insulators Div., I-T-E Circuit Breaker Co.) PERRY. T. Rav (W) 120Q Ba\\c~m. Sweetwater, Texas (General Electric Co.) PERTUCH. Walter A. R. (D) Franklin Institute Librarv 20th & Parkway, Philadelphia 3, Pa. PESKI1\, 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 IS, Ohi" PETERSOK, Albert F. 90 Fresh Ponk Pk)'. Cambridge 38, Mass. PETERSOK, Donald H. (E) 741 Hill Ave., Pittsburgh 21, Pa. (Westinghouse Electric Corp.) PETERSOK, Jack D. (G) 3029 l23rd St., Toledo 11, Ohio (Owens- Illinois I PETERSOX , Jack L. (RI) 820 Milan Ave. South Pasadena, Calif. (Melvin L. Jontz Co.) PETERSO~, John A., Jr. (W) Metal & Thermit Corp., Carteret, K. J. PETERSON, W. H., Jr. (R) Valentine Fire Brick Co. Div. A. P. Green Fire Brick Co. Woodbridge, N. J. PETRIE, Lloyd R. (W) 305 Western, Abingdon, Ill. (Abingdon Potteries, Inc.) PETT, Tyler G. (G) Kopp Glass, Inc. Swissvale, Pittsburgh 18, Pa. PETTY, Frank (W) 2771 W. 230th St. Fairview Park 26, Ohio (Cleveland Ceramic Corp.) PETTY, Howard E. (5) 3131 Ryons. Lincoln 2, Kebr. (Yankee Hill Brick Mfg. Co.) PFAUDLER CO. (Sidney W. McCann) 1000 West Ave., Rochester 3, K. Y. PFEIFF, C. H. (R) CurranPfeiff Corp. Box 527. Metuchen, N. J. PFEIFFEKBERGER. Lucas E. L'niyersity of Illinois 204 Cera;"';cs Bldg.. t'rhana, III. PFEIFFER, W. H. (EFIl Frigidaire Div.. General Motors Corp. 300 Taylor St., Dayton I, Ohio PFLEGER, George E. (M) Harshaw Chemical Co. 3237 S. Garfield, Los Angeles 22, Calii. PHADKE, V. S. Central Potteries, Ltd. Itwari. Nagpur 2, India PHELPS DODGE CORP. MORENCI BRANCH (L. L. McDaniel) Morenci, Ariz. PHELPS. Girard W. (M) 410 E. Magnolia Dr .. Morrisville, Pa. (United Clay Mines Corp.) PHELPS, Stuart M. (RF) Mellon Institute, Pittsburgh 13, Pa. PHILLIPS, Adrian W .. Jr. (R) 316 Fairmont Ave., Kew Castle, Pa. (Shenango China. Inc.) PHILLIPS. Charles .I. (G) Radio Corp. of America RCA Victor Diy .. Bldg. 56-I Camden, K. ]. PHILLIPS, Edwin L. (M!) Carolina Pyrophyl1ite Co. Box 2414, Greensboro, K. C. PHILLIPS, Gordon D. (W) Olean Tile Co. 103 S. Clark St., Olean, K. Y. PHILLIPS. James G. (RI) Dept. of Mines & Technical Surveys Mines Branch. Industrial Minerals Dh. Lydia St., Ottawa, Ont., Canada PHILLIPS. Leigh F. Box 87. East Quogue. L. 1., N. Y. PHILLIPS. Richard A. (W]) 1836 Willow A,e. Kiagara Falls. K. Y. (Sprague Electric Co.) PHILLIPS, W. Eric (G) Duplate Canada Ltd., Box 367 Terminal A, Toronto. Ont., Canada PHOEKIX, Richard C. (I) R. R. 1. Wynnewood Bound Brook, K. ]. ROSTER 8.'3 , . I' "e .. '. PICKARD, M. H. (M) Pacific Coast Borax Co. 100 Park Ave., 1'ew York 17, K. Y. PICKETT, Albert R. (R) Aluminum Co. of America 1501 Alcoa Bldg., Pittsburgh 19, Pa. 1IR' Arthur O. (M) Trevor Court Rd. hester 10, N. Y. eany Industrial Ceramic Corp.) PIERCE GLASS CO. (J. G. Bozzo) Railroad Ave., Port Allegan)', Pa. PIERCE, J. Allen (R) 798 Chalmers PI., Pittsburgh 16, Pa. (Harbison-Walker Refractories Co.) PIERPONT, Harlan T., Jr. (R) };'orton Co., I Kew Bond St. Worcester 6, Mass. PIERSOK, James F. (MI) Pemco Corp., Sales Dept. 5601 Eastern Ave., Baltimore 24, Md. PIGOTT, Phillip G. (R) Box 345, Norris, Tenn. (Cnited States Bureau of Mines) PILKINGTON, Lawrence H. A. Messrs. Pilkington Bros., Ltd. Glass Works, St. Helens, England PIKCtJS, Alexis G. (B) General Electric Co., Res. Lab. Box 1088, Schenectady, N. Y. PIN};'EY, 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, J. Donald (R) Coming Glass Works. Corning, N. Y. PITTENGER, John T. (W) Box 207, Newell, W. Va. (HOm~r Laughlin China Co.) MAN, Jack (G) wens-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. (5. F. Cox) Creighton, Pa. PIXLEY, Francis V. (S) 358 Grand St., Newburgh, N. Y. PLACE, Tom M. (BI) Helipot Corp. 916 Meridian St. South Pasadena, Calif. PLACE, Thomas M.. Jr. (B) 2413 W. 116th St., Inglewood 4, Calif. (Helipot Corp.) PLAGGE, Vernon L. (G) 54 Woodland Ave., East Orange, N. J. (Westinghouse Electric Corp.) PLANJE. Christian W. (RI) Gladding, McBean & Co. 2901 Los Feliz Blvd. Los Angeles 39. Calif. PLANJE, Theodore J. M. (B) 4 Summit Ave., Rolla, Mo. (Missouri School of Mines) PLANK, Ross D. (W) 2835 Sbadowlawn Ave., Los Angeles 39, Calif. (B. F. Wagner & Co.) Al'\KENHORN, William J. (EF!) Chicago Vitreous Corp. 1427 S. 55th Ct. Cicero SO, Ill. VOL. 35, No. 10 (1956) PLATT, Allan S. (S) Structural Clay Products Institute 1947 Grand Central Terminal Bldg. , New York 17, N. Y. PLEASANTS, Luther E., Jr. (G) 6002 Brookfield Rcl., Richmond, Va. (Allied Chemical & Dye Corp.) PLOETZ, Edwin C. H. (EI) 680 S. Lincoln Ave., Kankakee, Ill. (A. O. Smith Corp.) PLOETZ, George L. (W) 261 Swaggertown Rd., Scotia 2, K. Y. (General Electric Co.) PLUMBO, Victor A. (G) General GI'isS Equipment Co. 5 S. Virginia Ave., Atlantic City, N. J. PLUMMER, Harry C. (SF) Structural Clay Products Institute 1520 18th St., N. W. Washington 6, D. C. PLVMMER, Norman. (M) State Geological Sun-ey of Kansas Lawrence, Kans. PLl:MMER, William A. (G) Corning Glass Works, Corning, N. Y. PLl'KKETT, Jerry D. 78 Westgate, Cambridge 39, Mass. PLt'SCH, Johr. A. (W) 63 Spruce St., Westfield, Mass. (Cortland Grinding Wheels Corp.) POFFENBERG, Scott (M) 11616 Chenault St. Los Angeles 49, Calif. POHLE. Joachim H. P. Pohle Co.. 37 A Sutelstrasse Hannover, Buchholz, Germanv POISSON, Louis . Faiencerie de Badonviller Badonviller, Meurthe et Moselle, France POLAKD. Milton E. (W]1) 523 S. Pleasant St.. Royal Oak, Mich. (Champion Spark Plug Co.) POLAR. Alfredo (W) National Tile & Mfg. Co. Anderson, Ind. POLE, Gordon R. (BFI) 2592 S. Shore Blvd. White Bear Lake 10. Minn. (Minnesota Mining & Mfg. Co.) POLES, Alfred P. (W) 325 Arborlea Ave.. Morrisville, Pa. (Clifton Ceramic Mfg. Co.) POLHEMl'S. D. W. (R) Carborundum Co. Perth Ambo)', N. J. POLK, Arthur E. (W) R. R. I, Dowagiac, Mich. (Produce Terminal Corp.) POLSKY, Jack W. (M) W. H. & L. D. Betz Co. Gillingham & Worth Sts. Philadelphia 24, Pa. POMEROY, William T. (W) Sterling China Co. East Liverpool, Ohio POMPEI, Luigi SANAC Soc. per Az. Refrattari Argille e Caolini Via Martin Piaggio 13-7, Genova, Italy POND, Marvin H. (W) 221 Ridge Ave., Gettysburg, Pa. '(Keystone Ridgeway Corp.) 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, Sidney C. (R) Box 34, East Liverpool, Ohio (Consultant) PORTER, Wallace S. (W) Universal-Rundle Corp., Box 188 Hondo, Texas PORTS, David W. 212 1'. McCullough, Urbana, Ill. POSEY IRON WORKS, INC. (Frank A. Fix) Lancaster, Pa. POSLUSZNY, Raymond F. (R) 242 E. Meehan Ave. Philadelphia 19, Pa. (Refractory Specialties Co.) POST, Benjamin F. (RI) Cortland Grinding Wheels Corp. Chester, Mass. POST, Zarr A. (W) 5020 Elm St. Bethesda, Washington 14, D. C. (Melpar, Inc.) POSTE, Emerson P. (EFI) 616 Baldwin St., Chattanooga 3. Tenn. (Consultant) POSTLEWAITE, Donald E. (WI) Universal-Rundle Corp., Box 300 Redlands, Calif. POTTER, Alan 35 Shepard St., Rochester, N. Y POTTER, John F. (R) Bell Telephone Lab. Murray Hill, N. J. POTTERS SUPPLY CO. (William W. Irwin) 11 \\'ashington St. East Liverpool, Ohio POTTIER. Henri Cie. Generale d'Electro-Ceramique 12 Rue de la Baume, Paris 8'. France 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, Robert F. (W) 2763 N. Congress Rd., Camden 4, N. J (UniversalRundle Corp.) POUNDSTONE, William W. (G) Pittsburgh Plate Glass Co. One Gateway Center, Pittsburgh 22, Pa 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, George H. (R) 261 Woodfield Rd. Washington Township Westwood P.O., N. J. (Korton Co.) POYNOR, T. Wythe (S) Acme Brick Co., Box 1278 Oklahoma City, Okla. POZEFSKY, Leo (R) 3074 Cornwall Rd., Bethlehem. Pa. (Bethlehem Steel Co.) POZZAKGHERA, 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., Beaver Falls, Pa. (Ingram-Richardson Mfg. Co.) ROSTER 85 , PRECISION GRINDING WHEEL CO., INC. (Alexander M. Blakely) SJOI Torresdale .'\\e. Philadelphia 36, Pa. PRESCOTT, Frank R. (G) 811 Kimball Ave., Arnold, Pa. Pittsburgh Plate Glass Co.) SSEY, Clive (M) Minatron Corp., Belle Mead, l'. J. PRESTON, Frank W. (G) Preston Labs., Box 149, Butler, Pa. PREWITT, J. K. (S) Elgin Standard Brick Mfg. Co. Elgin, Texas PREY, Arthur H. (M!) Carborundum Co., l'iagara Falls, N. Y. PRICE, Glen M. (R) General Refractories Co., Box 1673 Baltimore 3, Md. PRICE, James E. (RI) 1956 Guernse)' Ave.. Abington, Pa (Simonds Abrasive Co.) PRICE, J. Russell (0) "Fairmeadows" Box 211, R. R. 3 Esmond 17, R. 1. (Doulton & Co., Inc.) PRIDDY, K. O. (S) Barium Reduction Corp. South Charleston 3, W. Va. PRIESTLEY, J. Edward Huntly Brick & Firecla)' Co., Ltd. Box 14, Huntly, New Zealand PRIMM. Herbert E. (R) 1658 Elevado Ave., Arcadia, Calif. (Harbison-Walker Refractories Co.) PRINCE, Alan T. (BI) Mines Branch, Ottawa, Ont., Canada PRDiDLE, William R (G) Hazel-Atlas Glass Co. 15th & Jacob Sts., Wheeling, W. Va. PRIOR, Gordon M. (M) Box 101, Scotch Plains, N. J. (Whittaker, Clark & Daniels, Inc.', OR, Harold D. (MI) _ 1025 Connecticut Ave., N.W. Washington 6, D. C. (Titanium Alloy Mfg. Div., National Lead Co.) PROCTOR, Thomas M., Jr. (GJ) Corning Glass Works Corning, N. Y. PROCTOR, W. J., Jr. (B) Southern Clays, Inc., Gordon, Ga. PROKOPEC, Robert (G) 309 N. Tillotson Ave., Muncie, Ind. (Ball Bros. Co., Inc.) PROKOPOWICZ, Thomas 1. (B]) Sprague Electric Co. North Adams, Mass. PROMAT DIVISION, POOR & CO. (W. F. Stark) 851 S. Market St. Waukegan, III. PRYOR, Edward K. (R) 902 N. Acacia, Whittier, Calif. (Pryor-Giggey Co.) Pl:CKETT, John P., Jr. (G) Leeds & Northrup Co. 4901 Stenton Ave., Philadelphia 44, Pa. PUERTO RICO CLAY PRODUCTS CORP. 10scar Gonzalez Cabanillas) Box 4729 San Juan, Puerto Rico PUI. Wong Yuk Castle Peak Ceramic Co., (1940) Ltd. Castle Peak, N.T.. Kowloon, Hong Kong Pl"LLIAM, George R. (B) 6920 Morrison PI., Madeira, Ohio (Cincinnati Milling Machine Co.) t 'LS' George (R'I Acme Brick Co. Box 425, Fort 'Worth, Texas ;LS. Josef "Austria" United Enamel Works Wilhelminenstr. 80 Vienna XVI, Austria VOL. 35, No. 10 (1956) Pl"MPHREY, \"iilliam 1. Murex \Velding Processes Ltd. Hertford Rd. Waltham Cross, Herts, England PUNTNEY, L. E. (RI) 908 E. Jackson~ Mexico. Mo. (Mexico Refractories Co.) PUPULIDY, Alexander (R) 3531-85th St., Apt. 5K Jackson Heights 72, N. Y. (Arabian American Oil Co.) PVRCELL, Burnette (S) l'orthwestern Terra Cotta Corp. 1750 Wrightwood Ave., Chicago 14, Ill. PURNELL, Hugh J. (R) 761 Loretta St., Pittsburgh 17, Pa. (United States Steel Corp.) PYRO REFRACTORIES CO. (0. E. Miller) Box 488 Oak Hill, Ohio a QUIGLEY CO., INC. (R J. Demaison) 415 Madison Ave., New York 17, ~. Y. QUIRK, John F. (W) Battelle Memorial Institute 505 King Ave., Columbus, Ohio QUIRK, Virgil P. (B) 3002 Allen St., Owensboro, Ky. (General Electric Co.) R R., Santiago E. Antunez de Mayolo Industria Nacional Ceramica y Anexos Casilla Postal 845, Lima, Peru RABE, N. A. (W) 10 W. Palmer Ave., Collingswood, N. J. (Universal-Rundle Corp.) RABIl', William J. (W) 19A-l Redfield Village, Metuchen, N. J. I Ferricore, Inc.) RADCZEWSKI, Otto-Ernst Institut fur Gesteinshuttenkunde Mauerstrasse 5. Aachen, Germany RADIO MATERIALS CORP. IR. D. Bourgerie) 3325 K. California Ave., Chicago 18, III. RAGATZ, Eugene C. (M) Allen-Bradley Co. 136 W. Greenfield Ave. Milwaukee 4, Wise. RAGGON, Frank C. (G) 4202 Bowen Rd., Toledo 13, Ohio IOwens-I11inois) RAHE, Villem Box 233, Alfred, N. Y. RAIBLE. A. J. (W) Brig/!,s Manufacturing Co. 415 W. Sevmour Ave. Cincinnati -16, Ohio , RAINE. Frank F. (Rn III E. Vine St., Mexico. Mo. (Mexico Refractories Co.) RAIl\'EAR, John F. (5) 73 Sharon Ave.. Hamburg, N. Y. (Buffalo Brick Corp.) RAIT, J. R. Research Controller Hadfields Ltd. East Hecla \\'orks, 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. RAMM, Eric R. L. Brishane & Wunderlich Ltd. Lord St., East Perth, West Australia RAMSDELL, John L. (E]) 17 Ellicott Ave. Bata\'ia, N. Y. RAMSDEN, C. E. C. E. Ramsden & Co. Ltd. Foley Colour & Chemical Works Fenton, Stoke-on-Trent, England RAMSEY, Thomas R., Jr. (B]) 1615 Homewood PI., Dallas, Texas RAMTITE CO. (Louis J. Jacobs) 2563 W. 18th St., Chicago 8, Ill. RAKDALL, Theodore A. (D) State Cni\'ersity of I'ew York College of Ceramics, Alfred, 1\. Y. RANDOLPH, Hal F. (R) Mexico Refractories Co., Mexico, Mo. RAXDOLPH, Robert L., Jr. (BJ) 2 X. Parkdale Dr., Chattanooga, Tenn. (American La\'a Corp.) RAXKIX, James E. Box 5021 State College Sta. Raleigh, N. C. RANKIN, James J. (M) St. Joseph Lead Co., Box 97 Monaca, Pa. RAXKI:XE, Adam S. (R) Martinsville, N. J. (Johns-Manville Corp.) RAPP, Carl H. (WI) Globe-Union, Inc., 900 E. Keefe Ave. Milwaukee I, Wise. RAPP, S. W., Jr. (W) Morton Pottery Co. 315 W. Jefferson St., Morton, Ill. RASMUSSEN, R. K. (G) Mississippi Glass Co., Fullerton, Calif. RASMUSSEN, Wayland G. (S) Mason City Brick & Tile Co. 200 Brick & Tile Bldg. Mason City, Iowa RASSNER, Donald D. (51) 1500 Alabama Ave., Jasper, Ala. (l'atco Corp.) RATCLIFFE, Harry J. (M) 724 Bunker Hill Ave., Trenton, N. J. (Unique Kilns of Trenton, Inc.) RATCLIFFE, Temple W. (R) 244 Buffalo St., Beaver, Pa. (Babcock & Wilcox Co.) RATHMAl\N, Clyde L. (G) R. R. 3, Corning, N. Y. (Corning Glass Works) RAUCH. Harry W. (G) 342 Spring Ln., Bridgeport, Pa. (Foote Mineral Co.) RAVSCHER, Louis C. (G) 2374 Geneva Ave., Glenside, Pa. (Philco Corp.) RO\Y, E. Harold (M) B. F. Drakenfeld & Co., Inc. Box 519, Washington, Pa. RAY, John G. (G) Sylvania Electric Products, Inc. Cottage Place, Mint'ola, L. 1., N. Y. RAYTHEON MANUFACTURING CO. (Leo J. Cronin) Foundry Ave. Waltham 54, Mass. RAZEY, Robert M. (R) 486 Ashland Ave., Detroit 15, Mich. (Great Lakes Steel Corp.) REA, Robert F. (WI) Stupakoff Di\'., Carborundum Co. Latrobe, Pa. REAGAN, Cornelius J. (S) 532 Woodmont St. East McKeesport, Pa. (Van Ormer Brick Co.) REAGAN, Michael M. (E) Stamped & Enamelled Ware Ltd. Guelph Ave., Hespeler, Ont., Canada REBCHOOK. Gregory V. (W) Radio Materials Corp. 1708 W. Belmont Ave. Chicago, III. REDWIKE, Richard H. R. R. 1, Rural Hall, N. C. RED WING POTTERIES, INC. (Thomas M. Arnold) Red Wing. Minn. REECE. Charles W. (X]) 105 S. Miller St., Greer, S. C. REED, A. J. (S) 521 Woodbine St., Willard, Ohio (National Clay Pipe Research Corp.) REED, Carl E. (G) 1410 E. Main St., Lancaster, Ohio (Sharp-Schurtz Co.) ROSTER 8i I. I r. i; f " i: ~. t EED, George c., III (BJ) 413 S. 25th St., Apt B-3 South Bend, Ind. (Bendix Aviation Co,p.) ~EED, Madison W., Jr. 3801 Ave. "G", Austin, Texas ': , Paul H. (R) '/. Fairmont Ave., New Castle, Pa. ew Castle Refractories Co.) , ES, Harold, Sr. (W) Fitzpatrick Industries Inc. Box 30, East Palestine, Ohio :EFRACTORIES INSTITUTE, THE (Aver)' C. Newton) First National Bank Bldg. Pittsburgh 22, Pa. ~EFRACTORY & INSULATION CORP, (A. S. Arwine) Port Kennedy, Pa. :EGENBRECHT, Albert, Jr. (G) Syh'ania Electric Products, Inc. Burlington, Iowa ~EGOUT, Joseph F. E. 1\. V. de Sphinx, Maastricht, Holland ~EGOUT, L. F. H. N. V. Porselein en Tegelfabriek Mosa Meerssenerweg 358. Maastricht, Holiand REID, Frank P. American Ceramic Society 4055 N. High St., Columbus 14, Ohio REID, Harry F., Jr. (M) McKay Co. 850 Grantly Rd., York, Pa. REIMAN?,;, A. Gilbert (W) 114 Pinehurst PI., Schenectad)' 4, N. Y. (General Electric Co.) REIMER, John J. (WI) Keystone Ridgeway Corp. Gettysburg, Pa. REH\, Peter (W) 1746 W. Sycamore, Kokomo, Ind. (Kokomo Sanitary Pottery Corp.) REINKER, Arthur G. (R) _ hns-ManVille Sales Corp. 30 Guildbail Bldg. eveland 15, Ohio REI1\KER, Gerald E. (G) General Electric Co., Lamp Div. 1133 E. 152nd St., Cleveland 12, Ohio REISCHEL, Frank (W) 2733 Mayflower, Arcadia, Calif. (Dilectron Inc.) REISING, Joseph A. (M) St. Joseph Lead Co., Zinc Smelting Div. Monaca, Pa. REISS, Max S. (E) 85 Howell St., Ca:landaigua, N. Y. REM DE, Harry F., Jr. General Ceramics Corp. Keasbey, N. J. REMINGTON, Victor H. (GIl B. F. Drakenfeld & Co., Inc. Box 519, Washington, Pa. REMMEY, G. Bickley (RF) Richard C. Remmey Son Co. Hedley St. & Delaware River Philadelphia 37, Pa. REMMEY, John G. (R) Richard C. Ren,mey Son Co. Hedlev St. & Delaware River Philadelphia 37, Pa. REMMEY. RICHARD C" SON CO. (G. Bickley Remmey) Hedlev St. & Delaware River Philadelphia 37, Pa. REM PES, Paul E .. Jr. (BJI) 5452 Mitchell Dr., Page Manor Dayton 3, Ohio (United States Air Force) IITFREW, J. Han'ey (5) Linden Park St., Roxbury 20, Mass. erman G. Protze) OUF, Leonard J. (R) 342 Church St., Youngstown, N. Y. (Titanium Alloy' Mfg. Div., National Lead Co.) VOL. 35, No. 10 (1956) RENSKERS, Richard H. (\\'1) American-Standard , Box 736, Kokomo, Ind. REPUBLIC STEEL CORP. (Burton Longwell) 1423 RepuLlic Bldg. Cleveland 1, Ohio RESCHETZ, Raymond R. 1615Y, W. Park, Champaign, Ill. RESER, Margie K. 977 Carlisle Ave., Columbus II, Ohio (American Ceramic Society) REeNING, Charles R. (R) 545 Boulevard,' Westfield, N. J. (National Refractories Co.) REeNING. George W., Jr. (RI) 279 Y, E. Main St., Frostburg, Md. (Big Sa\'age Div., Mexico Refractories Co.) REl.:SCHE, Frank L. (W) r60 Congressional Pky., Li\ingston. N. (L. Reusche & Co.) REt:TER. Raymond (R) National Aluminate Corp. 6216 W. 66 PI., Chicago 38, 111. 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) RHODES, Foster T. (W) Onondaga PC'ttery Co. Syracuse 4, N. Y. RHODES, Fraser B. (WFJ) 7134 Maple Ave., Madeira, Ohio (Briggs Manufacturing Co.) RHODES. Ralph E., Jr. (M) United Clay Mines Corp. 101 Oakland St., Trenton 6, N. J. RHODES, Ralph R. (RFI) 1729 Powell St., Norristown, Pa. (E. J. Lavino & Co.) RHODES. William H. Box 827, Alfred, 1\. Y. RICCI, Edward Michael (RJI) 817 Main St., Dickson City, Pa. (Harbison-Walker Refractories Co.) RICE. George A. (W) General Electric Co. Campbell AYe. Plant, Rm. 459 Schenectady', 1'\. Y. RICE, Hal H. (WI) 451 Vinewood AYe., Birmingham, Mich. (General Motors Corp.) RICE, Murray J. (B) Box 155, Alfred, N. Y. (State University of New York, College of Ceramics) RICE, William H. (G) General Electric Co. Glass Technology Laboratory 1133 E. 152nd St., Cleveland 10, Ohi" RICH. David C. (G) Pittsburgh Plate Glass Co. Creighton, Pa. RICHARD, Giulio A. Via Cernuschi 1, Milano, Italy (Societa Ceramica Richard-Ginori) RICHARDS, Robert W. (5) Richards Brick Co. 234 Springer, Edwardsville, Ill. RICHARDS. Thomas Z. (R) 80 Maple St., Greendale Sta. West Boylston, Mass. (Norton Co.) RICHMA1\, Peter D. Box 746, Alfred, 1'\. Y. RICHMOND, Joseph c. (EFI) 4822 Morgan Dr., Che\'y Chase IS, Md. (National Bureau of Standards) RICHTER, Charles J. (G) Box 275, Canfield, Ohio RICK, Clarence A. (R) Box 63, 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. (W]) B. F. DrakenfeJd & Co., Inc. \\'ashington, Pa. RICKEY, J. H., Jr. (1{) Ironton Fire Brick Co. Box 536, Ironton, Ohio RIDDLE, Frank H. (WFI) 14 Upland Rd., Colorado Springs, Colo. (Champion Spark Plug Co., Ceramic Div.) RIDGEWAY, Thomas J., Jr. (R) General Refractories Co. Morrisville, Pa. RIEGERT, Richard P. (I) Box 995, Alfred, N. Y. RIEPER, Gerald 394 PammeJ Ct., Ames, Iowa 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) III Rebecca St., K'ttanning. Pa. (Pittsburgh Plate Glass Co.) RILEY, Roger R. (R) I i74 Danesta Dr., Concord, Calif. (Gladding, McBean & Co.) RINDONE, Guy E. (G) Department of Ceramic Technology Pennsylvania State University T;niversity Park, Pa RIKGEN, Robert E. (M) PaulO. Abbe Co., 143 Center Ave. Little Falls, N. J. RISPLER, Z. W. Palestine Glass Works "Phoenicia" Ltd., Box 168 Haifa, Israel RITLAND, Harold K. (G) 14i32 Eastgate Dr .. Belle\'ue, Wash. (Boeing Airplane Co.) RITT, P. E. (W) 1326 S. George Mason Dr. Arlington, Va. (Melpar, Inc.) RITTER, Joseph S. (G) Adamston Flat Glass Div., Rolland Glass Co., Box 631 Clarksburg, W. Va. RITTLER, Hermann 12 N. Wayne St., Phelps, N. Y. RITZ, Joseph W. (G) Sylvania Electric Products, Inc. 83-30 Kew Gardens Rd. Kew Gardens, L. 1., N. Y. ROACH, H. C. (R) American Radiator & Standard Sanitary Corp. 40 W. 40th St. :!Iiew York 18, l\. Y. ROBB, Richard B. (G) 209 Vine St., Pittsburgh 18, Pa. rl.:nited States Steel Corp.) ROBBIKS, Martin D. 86-15 Elmhurst Ave. Elmhurst, Queens, 1\. Y. ROBBI!\S, Ross W., Jr. (R]) 31 May St., Worcester, Mass. (Norton Co.) ROBERSON, Cletis L. (G) 350 Moull St., Newark, Ohio (Owens-Corning Fiberglas Corp.) ROBERTS, Gerald J. (5) Mineral Wells Clay Products, Inc. 205 N. W. Seventh St. Fort V,'orth, Texas ROSTER 89 ROBERTS. John Taggart (EFI) 419 Park Blvd., Glen Ellyn, Ill. (Crane Co.) ROBERTS, John W. (S) 3204 Hawthorne Ave., Richmond 22, Ya. (Southern Lightweight Aggregate Corp. I RTS. Mervin Francis (E) 16 Carpenter Ave. Crestwood, Tuckahoe 7, K Y. (de Lackner Helicopters, Inc.) ROBERTS01\, James A. (R) Westvaco Mineral Products Div. Box 337, 1\ewark, Calif. ROBERTSON, John M. (E) 3008 Rosedale Blvd., Louisville 5, Ky. (American Radiator & Standard Sanitary Corp.) ROBERTSON, Leon F. (G) Brockway Glass Co.. Inc., Brockwa)', Pa. ROBERTSOi'. Randal K. (S) 906 University Tower Bldg. Montreal, Que.. Canada (Laprairie Brick & Tile. Inc.) ROBERTSON, R. Kenneth (S) 133 Thornton Ave. Mt. RO)'al, Que., Canada (Laprairie Brick & Tile, Inc.1 ROBESON PROCESS CO. ('Asgeir Riis) Box 960, Erie, Pa. ROBILLARD, Harvey J. (R) Exolon Co.. 1000 E. Niagara 51. Tonawanda. N. Y. ROBIXETTE, Oren. Jr. Box 2284, Clemson College Sta. Clemson. S. C. ROBINSON CLAY PRODUCT CO. (W. E. Robinson) Box 1070 65 W. State St., Akron 9, Ohio ROBI1\SON, F. George (S) 500 S. Santa Fe Dr., Denver, Colo. (Robinson Brick & Tile Co.) ROBIKSON, Gilbert C. (SF) Box 91, Clemson, S. C. (ClemSOn College) INSON, Louis G. (E) Louis G. Robinson Labs. Box 761, Cincinnati 1, Ohio ROBINSON, Percy Burrill Diamond Clay Co. Ltd. Hartshill, Stoke-onTrent, England ROBIKSON, Phillip 23 Pymble Ave. P)"111ble, N.S.W., Australia (Gallard & Robinson Pty. Ltd.) ROBINSON, Richard E. (RI) JohnsManville, Zelienople, Pa. ROBI1':SON, Richard R. (SI) 2232 Parkwa)' Blvd., Alliance, Ohio (Alliance Clay Product Co.) ROBINSON VENTILATING CO. O. L. Henderson, Jr.) Zelienople, Pa. ROBINSON, W. E. (R) Robinson Clay Product Co. Box 1070, 65 W. State St. Akron 9, Ohio ROBI1\50K. William L. 112 W. Sixth St., Fulton, ~Io. ROBSON, H. L. (G) 2 Water St., Lewiston. "1\. Y. (Olin Mathieson Chemical Corp.) ROBSON, James T. (MF}) Allied Engineering Division Ferro Corp., 4150 E. 56th St. Cleveland 5. Ohio ROBSON. William G. (R) Atomics International 21600 Vanowen. Canoga Park, Calif. ROCHE, L. C. (GF) Maryland Glass Corp. 2147 Wicomico St., Baltimore 30, Md. CHESTER, Thomas W., Jr. (G) 210 Delevan Ave., Corning, N. Y. (Corning Glass Works) "ROCHFORD, David S. Bo~ 787, Alfred, K. Y. VOL. 35, No. 10 (1956) ROCHOW, W. F. (RF) Harbison Walker Refractories Co. 1800 Farmers Bank Bldg. Pittsburgh 22, Pa. ROCKFORD BRICK & TILE CO. (G. H. Galvin, Jr.) Rockford, Iowa ROCKWELL, Dale't. Missouri School of Mines Jackling Gym, Rolla, Mo. RODEFER, Howard H. (G) Rodefer-Gleason Glass Go. Box 550, Bellaire, Ohio RODEMOYER, William E. Box 197. Alfred, N. Y. RODMAN, Clarence J. (E) Box 809, Alliance, Ohio (Alliance Ware, Inc.) RODRIGUEZ, Alfonso F. (G) Vidriera Monterrey, S. A. Apartado 162, Monterrey, 1':. L., Mexico RODRIGCEZ. A. ~. (BI) 29 Pine St., Franklinville, N. Y. (Hi-Q Div., Aerovox Corp.) ROE, La"'rence A. (G) 234 Sheridan PI., Lake Bluff, Ill. (International Minerals & Chemical Corp.) ROFF, Robert W. (M) Bell Operations 433 Birch PI., Westfield, N. J. ROFF, W. Wallace (M) 14 Glenside Dr., West Orange. N. J. (Whittaker, Clark & Daniels, Inc.) ROGATZ. Alvin (B) Maida Development Co. 214 Academy St., Hampton. Va. ROGERS. Edwin J. (WI) Scintilla Diy. Bendix Aviation Corp., Sidney, 1':. Y. ROGERS, Gre~ory L. rR) 9500 S. Korwalk Blvd. Los l\'ietns. Calif. (Pacific Clay Products) ROGERS. Meh'in F. (GJ) 55 Goff St.. Corning. N. Y . (Cornin~ Glass Works) ROGERS. Vir~il L. (S) Hebron Brick Co., Hebron. N. D. ROGERS. William R. (R) Carborundum Co. Refractories Div .. Niagara Falls, K. Y. ROLKE. Herbert J. (I) Soeiedade de Engenharia Industrial Rua Marconi, 23,8 andar Sao Paulo, Brazil ROLLMANN. Peter Emmalaan 11, Baarn, Netherlands (Anker Emaille Fabrieken N.V.) ROMANO. Pasquale J. (W) 1212 Cavalier Ln .. West Chester, Pa. (Foote Mineral Co.) ROMINE, Donald J. 606 S. Monroe St.. 'West Frankfort, Ill. ROONEY, Thomas E., III (R) Empire Fire Brick Co. 219 Murray, Fort Wayne, Ind. ROOT, H. Dean (WI) Westinghouse Electric Corp. K-70, Materials Engineering Dept. East Pittsburgh, Pa. ROOT. Lawrence L. (M) Stanford Pottery Inc. 40 S. 15th St., Sebring, Ohio ROQtJES. Rodney A. (\\') Coors Porcelain Co., Golden. Colo. ROSE, Ralph (RI) E. J. Lavino & Co. Box 29, Norristown, Pa. ROSENDALE, Robert H. (W) Dover Ceramic Co., Malvern. Ohio ROSENTHAL,E.K. (W) 234 Napoleon St. Playa Del Rey, Calif. (Metlox Mfg. Co.) ROSENTHAL. Ernst 246 Park West, Marble Arch London W. 2, England ( Consultant) ROSE~TH.-\L, Jerome J. 3i89 Gold St., Apt. 5 Los Alamos, 1':. M. ROSENWI1':KEL, George O. (R) North American Refractories 59 E. Van Buren, Chicago 5, Ill. ROSICLARE LEAD & FLUORSPAR MINING CO. (J. Blecheisen) Rosiclare, Ill. ROSLUND, J. A. (R) Globe Brick Co., Box i65 East Liverpool, Ohio ROSS, Donald W. (RFI) 5929A Oakhurst PI., St. Louis 12, Mo. ( Consu Itan t) ROSS, Howard, II (EJ) R. R. 1, Kane, Pa. (Ferro Corp.) ROSS, John A. (G) Corning Glass ""orks, Corning, N. Y. ROSS. Stuart T. (B) 901 Brooklawn Rd. Birmingham, Mich. (Chrysler Corp.) ROSSTACONY CRUCIBLE CO. (A. M. Johnson) Robbins & Milnor StJi. Philadelphia 35, Pa. ROTH, Harper D. (M) . East River Rd., Grand Island, N. Y. (Harper Electric Furnace Corp.) ROTHERMEL, Joseph J. (G) Corning Glass ""orks, Research Lab. Corning. 1':. Y. ROUDABVSH. Henry L. (R) General Refractories Co. 3201 Fruitland Ave. Los Angeles 58, Calif. ROt:DABt.:SH. Ned W. (R) 311 Candlewood Rd., Broomall, Pa. (General Refractories Co.) ROUP, Rolland (WFI) Globe-t.:nion Inc. 900 E. Keefe Ave. Milwaukee 1. Wise. ROWE, Arnold E. (E) R. R. 1. Kebo, K. C. ROWLAND, Donald A. (W) 3 Maple St., Bath, N. Y. (Westinghouse Electric Corp.) ROWLA1'\D. Richards A. (B) Exploration & Production Res. Div. Shell Development Co. 3737 Bellaire Blvd., Houston 25, Texas ROWLAND, R. W. (BF) New Castle Refractories Co. New Castle, Pa. ROWLANDS, Robert R. (WI) Universal-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) Pennsyh-ania State University 221 Mineral Sciences Bldg. University Park, Pa. ROYAL CHINA, INC. (B. L. Miller) Sebring, Ohio ROYAL, Herbert F. (WF) 845 Pilgrim Rd.. Birmingham, Mich. (Champion Spark Plug Co.) ROYAL COPENHAGEN PORCELAIN MANUFACTORY & THE FAIENCE MANUFACTORY ALUMINIA (Chr. Christensen) Smallegade 45 Copenhagen F., Denmark ROYER, Rene Ingenieur-Conseil (E.C.P.) 60, Rue D'Issy, Vanves (Seine) France Rt~ARK, A. E. (G) Box 2041, University. Ala. (Unh'ersity of Alabama) ROSTER 91 , ,. ReBIO, Diego P. 89 Xew York, Cubao Quezon City, Philippines Rl'DD, Richard D. (M) Carborundum Co. 3335 W. 47th St., Chicago 9, Ill. _ Charles V. (BI) Lindsay Ave., Tiffin, Ohio .:erling Grinding Wheel Co.) RL"'ECKEL, Walter C. (RF) Koppers Co., Inc., Koppers Bldg. Pittsburgh, Pa. RVGG. Ormund 1. (G) 13615 Meyers Rd., Detroit 27, Mich. (Ford Motor Co.) RUGH, Kenneth A. (R) Garfield Refractories Co. Bolivar, Pa. Rl'H, Edwin lR) 789 Fruithurst Dr. Pittsburgh 34, Pa. (Harbison-~'alker Refractories Co.) Rt.'H. Robert (Rn 162 Diana Ln., K., Fairborn. Ohio (Wright Air Development Center) RUIZ, Jorge Martin (R) Amerex Ingenieros, S.A .. Ixtaccihuatl 6 (lnsurgentes & Aguascalientes) Mexico II, D. F. RUIZ, Robert A. (R) 114 W. Home St., Vandalia, Mo. (Walsh Refractories Corp.) RULOK, Richard M. (G) Sylvania Electric Products, Inc. 60 Boston St., Salem, Mass. RUSHMORE, Murra)', Jr. (M) Moore & Munger 33 Rector St., Kew York 6, N. Y. RUSO, Felipe B. (G) Galiano 109. Habana. Cuba (General Glass Equipment Co.) Rt.:SOFF. Samuel (R) Basic, Inc. MaPle Grove, Fostoria, Ohio LL, Charles K. (R) Mars St., Mexico. Mo. A. P. Green Fire Brick Co.) RUSSELL, Howard F. (EI) 3118 Woodworth PI. Pottowatomie Hills, Hazelcrest, III. (Ingersoll Products Div., Borg-Warner Corp.) Rl'SSELL. Leslie A. (G) Hazel-Atlas Glass Co. ~'ashington, Pa. RUSSELL, Lewis E. 20 Kirk Close. Oxford, England n;. K Atomic Energy Authority) RUSSELL, Norman Keith (RI) 24 Longcorse Ln., Paoli, Pa. (Richard C. Remmey Son Co.) RUSSELL, Ralston, Jr. (XFI) Dept. of Ceramic Engineering 126 Lord Hall. Ohio State University Columbus 10, Ohio RUSSELL, Robert G. (G) R. R. 2. Granville. Ohio (Owens-Corning Fiberglas Corp.) RUSTLESS IRON CO. LTD. (H. Whitaker) Lawkholme Ln. Keighley, Yorks, England RYAN, D. Edward Curran Engineering, Ltd. Cardiff. Wales RYAN, Joseph D. (G) 3018 Middlesex Dr., Toledo 6, Ohio (Libbey-Owens-Ford Glass Co.) RYAK, Larry D. Box E, Gig Harbor, Wash. RYCKMAN, David A.. Sr. (W) S. Marion St., Bloomville, Ohio R, Robert ]. 21 E. McCormick Ave., Apt. 2 State College, Pa. RYLAKD, H. W. (W) Coors Porcelain Co. 600 Ninth St., Golden, Colo. VOL. 35, No. 10 (1956) RYXDERS, Gerald F. (BI) National Bureau of Standards Div. 9.1, Washington 25, D. C. RtSHKEWITCH, Eugene (R) Kearfott Co., Inc. 142 Getty Ave., Oifton, N. J. S SADA, Patricio (E) TrOQueles & Esmaltes S. A. Apartado Postal 371 Monterrey N. 1. ... Mexico SAGIKOR, S. V. (W) Gladding, McBean & Co. 2901 Los Feliz Blvd. Los Angeles 39, Calif. SAIBEL. Edward (G) Carnegie Inst. of Tech. Schenley Park, Pittsburgh 13. Pa. SAILER, Edward (Bn Radio Corp. of America RCA Bldg. 55-2, Harrison, K. J. SALEEBY, Edward C. (S) J. c. Steele & Sons, Inc. Box 951, Statesville, K. C. SALIl\AS, 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) SALTMAl\, Donald (R) 107 Bonito, Long Beach 2. Calif. (Douglas Aircraft. Inc.) SAMMONS, Frederick C. (R) General Refractories Co. 3247 Fruitland Ave. Los Angeles 58, Calif. SAMPSOl\. J. Leonard (G) Mahoning Glass Works General Electric Co., 403 N. Main St. Niles, Ohio SAMPSOK. John W. (M) Lindberg Engineering Co. Box 813, East Longmeadow, Mass. SAMSOK, A. William (G) B. F. Drakenfeld & Co. Inc. Box 519, Washington, Pa. SAMUEL, Donald G. (R) E. J. La\ino & Co. Box 29. Xorristown, Pa. SANBORN, Paul H. (W) 2514-23rd St., Parkersburg, W. Va. SAKDERS. Clyde A. (M) American Colloid Co. Merchandise Mart, Suite 813 Chicago 54. Ill. SANDERS. Herbert H. (D) 17926 Daves Ave., Los Gatos, Calif. (San Jose State College) SANDERS. Loren D. (BJI) 1233 Delaware Ave., S. ~r. Canton. Ohio (Ohio Brass Co.) SANDERSON, K. W. John G. Stein & Company, Ltd. Bonnybridge. Scotland SAKDFORD. Per Johan Folke Chalmers Tekniska Hogskola Gibraltargatan 57, Goteborg, Sweden SA!\'DMEYER, Karl H. (Rn 90S-87th St" Niagara Falls, N. Y. (Carborundum Co.) SANDS, George Imperial Smelting Corp. Avonmouth, Bristol, England SANFORD. Elbert A. (E) 375 Oakridge Dr., Rochester 17, N. Y. (Pfaudler Co.) SAN MIGUEL BREWERY, INC. (A. VilIa-Abrille) 1112 Aviles Manila. Philippines SA!\KER, R. Dean R. R. 1, Argenta, Ill. SAXT, John W. (W) Universal-Rundle Corp. Mt. Vernon & Orchard St. Camden, K. J. SAKTOMIERI, S. Lewis (WI) Box 8, Botkins, Ohio (Botkins Engineering) SARAKAUSKAS, Raymond (B) Kational Carbon Co., Research Labs. Box 6116, Cle\'eland I, Ohio SARGE:\T, Edward C. (R) Zirconium Corp. of America Solon, Ohio SARRAF, Edward M. (R) 20001 Laurel Ave. Rocky River 16. Ohio (Harbison-Walker Refractories Co.) SASAKI GLASS MFG. CO., LTD. (Seiichi Tabata) l.I-Chome Yokokawa-Bashi Sumida-ku, Tokyo. Japan SASTRY, B. S. R. Pennsyh'ania Statel:ni\'ersity College of Mineral Industries l!niHrsity Park, Pa. SAUEREISEK. C. Fred (M) Sauereisen Cements Co. Sharpsburg Sta., Pittsburgh 15, Pa. SAl'LS, J. B. (MI) Funkhouser Co.. 138 W. Washington St. Hagerstown, Md. SAVNDERS. Alfred C. (RI) 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. SAl'KDERS, Richard A. (S) 2626 Lan,'ood Dr.. Charleston, W. Va. (Charleston Clay Products Co.) SAVELL, Fred H. (M) \\' estern Talc Co. 1901 E. Slauson Ave. Los Angeles 58, Calif. SAVIOLl, Francesco Istituto Siderurgico Finsider Villa Brignole-Corso F. M., Perrone, 24 Genova-Cornigliano (Jtalia) SAW AI, Ikutaro Kyoto University. Kyoto, Japan SAWYER, E. C. (w) Central Silica Co .. 806 Market St. Zanesville, Ohio SAXE. Charles W. (R) 1 Wawecus Rd., Worcester 5, Mass. (!\orton Co.) SAXONBURG CERAMICS (George H. Aderhold) Box 100 Saxonburg, Pa. SCALES, John B. (BI) 456 Lynn Dr., Berea, Ohio (United States Stoneware Co.) SCHAA. Ferdinand A., Jr. (Wn 84 Paumal'ake Ave., Babylon. N. Y. (Sylvania Electric Products Inc.) SCHAAL, Frank W., Jr. (W) B. F. Drakenfeld & Co., Inc .. Box 519 Washington. Pa. SCHABACKER. H. Eric (E) Erie Ceramic Arts Co. 3120 W. 22nd St., Erie. Pa. SCHAEFER. Carl F. (W) 327 Sheffield Ave., Flint, Mich. I A. C. Spark Plug Dh. General Motors Corp.) SCHAEFER. Earl F., II 102 E. Chalmers, Champaign, Ill. SCHAEFLE, Max Thayngen/SH, Switzerland (Tonwerke Thayngen A. G.) SCHAFER, C. B. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio ROSTER 93 r :HAXER, Burton E. (B]) Westinghouse Electric Corp. Box 1468, Pittsburgh 30, Pa. CHATZKI1'\, Harvey lW) Architectural Tiling Co. Inc. Cass!]ackson Sts., Keyport, N. ]. CII11SS, Edward P. (G) Eleanor Ave., Toledo 12, Ohio ns-Illinois) C , Donald C. (E) 2227 S. Gunderson, Berwyn, Ill. (Annour Research Foundation) .CHIEFFERLE, James A. (E) 4501 Statton Rd., Ashfield Acres Louisville 5, K}', (General Electric Co.) CHIEXE, Quentin J. (R) 7614 Kingston Ave., Chicago 49, Ill. l United States Steel Corp.) :CHIFFERLl, Leo M., Jr. (R) 3001 Westmoor Dr., Kokomo, Ind. (Haynes Stellite Co.) CHLEGEL. Roland F. Rua Inglaterra 283, Sao Paulo, Brazil ;CHLEHR, W. Raymond (GI) Brockway Glass Co., Inc. Lapel, Ind. ;CHLOEMER, Hermann Mineralog. Institution of Cniv. Tuebingen, Bismarkstr. 50 Tuebingen, Germany SCHLOTZHAUER, Leon R. (R) RR. 2, Painted Post, N. Y. (Corning Glass V.'orks) SCHMID, Arthur W. (G) Arthur W. Schmid Co. 1414 Investment Bldg., 239 Fourth Ave. Pittsburgb 22, Pa. SCHMID, Robert L., Jr. (R) 125 Croftley Rd., Sbetland Hills Lutherville, Md. (Aluminum Co. of America) SCHMIDT, Beuther L. (R) Anchor Hocking Glass Corp. Lancaster, Ohio S . D T , William G. (S) 469, Altamont, K. Y. eneral Electric Co.) SCHMUNK, Louis (W) 70 Dunedin Dr. Toronto 18, Ont., Canada (American Radiator & Standard Sanitary of Canada) SCHNEIDER, LaVoy H. (E) 5 Maple Ct., Hamilton, Ohio (Ferro Corp.) SCHNEIDER, Matthew P., Jr. (S) 2648 Louisa St., Slidell, La. (St. Joe Brick Works, Inc.) SCHKEIDER. Samuel J., Jr. (RJI) 3336 Lancer Dr., West Hyattsville, Md. (National Bureau of Standards) SCHOELLKOPF, Robert S. (W) Carborundum Co. of Puerto Rico Box 1147, Mayaguez, Puerto Rico SCHOENINGER, Irvin W. (WI) 5250 N. Shoreland Ave. MilwaUKee 17. Wise. (Globe-Union Inc.) SCHOENLAUB, Robert A. (R) Harrop Ceramic Service Co. Box 5338, Shepard Sta. Columbus 19, Ohio SCHOEPPEL, Nonnan (RI) 10 Elm Tree Dr., Mexico, Mo. (A. P. Green Fire Brick Co.) SCHOFIELD, H. Zane (WFI) Koppers Co., Inc., Research Dept. Koppers Bldg., Pittsburgh 19, Pa. SCHOLES, Addison B. (G) Interlectric Corp., V.'arren, Pa. SCHOLES, S. R (GF) x 752. Alfred, N. Y. tate Unhersit~ of New York llege of Ceramics) SOLS, Leon V. F. M. St. Lamhertuslaan 4a Maastricht, Holland (Regout-Matthe}') VOL, 35, No. 10 (1956) SCHOO:\O\'ER, 1. C. lB) l\'ational Bureau of Standards Washington 25, D. C. SCI1'OTSMAl\', J. Kruisstraat 31, Dieren, l\' etherlands lK. V. Enamel Wor.ks "de Yssel") SCHOTTLAND, A. H. (G) Standard Bent Glass Co., Butler, Pa. SCHOTTS, Walter H. (MFI) 23 E. Southington Ave. Worthington, Ohio (Harrop Ceramic Service Co.) SCHRADER, David M. (R) 742 Rotch Ave., Massillon, Ohio (Republic Steel Corp.) SCHRAMM, Edward (WF) Onondaga Pottery Co. Syracuse 4, N. Y. SCHRECKENGOST, Don (DF) 26 I 7 St. Clair Ave. . East Liverpool, Ohio (Homer Laughlin China Co.) SCHRECKEKGOST, Viktor (D) 2265 Stillman Rd. Cleveland Heights 18, Ohio (Salem China Co.) SCHREIBER, Edward Box 948, Alfred, N. Y. SCHRICKEL, Herman H., Jr. (G) 178 E. Pulteney St., Corning, N. Y. (Corning Glass Works) SCHROEDER, Fred W. (RFI) Korth American Refractories Co. 1012 National City E. Sixth Bldg. Cleveland 14, Ohio SCHROEDER, Herhert S. (R) 6 Conover Ln., Red Bank, N. J. (Carborundum Co.) SCHROLL, J. R. (S) Manufacturers Equipment Co. 218 Madeira Ave., Dayton 4, Ohio SCHUCK, John F., Jr. (WI) RR 1, Apple Creek, Ohio (Alite Di,., V. S. Stoneware Co.) SCHUETZE, Ervin W. (R) 23 Rock Springs, Mexico, Mo. (A. P. Green Fire Brick Co.) SCHUH, Arthur E. (R) United States Pipe & Foundry Co. Burlington, N. J. SCHULHOF, Andres Lozadur, Grandes Fabricas Argentinas de Ceramica, S. A. Boulogne, F.C.N .G,B. Buenos Aires, Argentina SCHULTZ, Donald G. (S) 3119 Woodworth, Hazelcrest, Ill. (Chicago Brick Co.) SCHLTLTZ, James B. (G) 1321 E. Robinson St. North Tonawanda, N. Y. (National Gypsum Co.) SCHULTZ, John, Jr. (E]) Battelle Memorial Institute 505 King Ave., Columbus 1, Ohio SCHCLZE, Robert H. (X) Advanced Vacuum Products, Inc. 22 Liberty St., Stamford, Conn. SCHUMACHER, William G. (E) 5956 K. Glenwood Ave. Chicago 40, Ill. (National Cylinder Gas Co.) SCHURECHT, H. G. (WFI) Champion Spark Plug Co. 8525 Butler Ave., Detroit 11, Mich. SCHURTZ, D, D. (GF) Sharp-Schurtz Co. 301-303 Lincoln Ave. Lancaster, Ohio SCHWAB, Leon B. (R) 214 E. Home St., Vandalia, Mo. (Harbison-Walker Refractories Co.) SCHWARTZ, Bernard (BI) 35 Dogwood Dr., R R 2 Downingtown, Pa. (International Resistance Co.) SCHWARTZ. Jerome W. (W) Sascha Brastoff Products, Inc. 11521 \\'. Olympic Blvd. Los Angeles 64, Calif. SCHWARTZ, M. A. (Bl) 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. 101 Ferry St., St. Louis 7, Mo. SCHWEITZER, Howard V. (M) Schweitzer Equipment Co. 3764 Ridge Rd., Oeveland 9, Ohio SCHWEl\'KLER, Edward P. 979 Grove St., Elmira, 1'\. Y. SCHWENKLER, Theresa A. (G) 979 Grove St., Elmira, K. Y. (Corning Glass Works) SCH\\'IETE, Hans-Ernst Institut fur Gesteinshuttenkunde Mauerstrasse 5, .\achen, Germany SCOTT, J. W. (W) Western Electric Co. Inc. 7650 Hawthorne Station Chicago 23, Ill. SCOTT, Murra}' R (GFI) Bausch & Lomb Optical Co. 635 St. Paul St., Rochester 2, N. Y. SCOTT, Robert ~L (RI) 4619 Druid Ln., Dayton 9, Ohio (Xorton Co. I SCOTT, Roger F. (Gl) 911 E. Main St., Millville, N. J. (Annstrong Cork Co.) SCOTT, Roland F. (S) Brazil Public Librar)' Brazil, Ind. SCOTT, W. J. (W) Western Electric Co. Inc. 2525 Shadeland Ave. Indianapolis 6, Ind. SCOTT, William D. 7707 Water St., Olmstead Falls, Ohio SEABRIGHT. Clarence A. (M) 2201 Wascana ..he., Lakewood 7, Ohio (Harshaw Chemical Co.) SEABRIGHT, Edward C. (E) 171 Beuland, Mt. Oemens, Mich. (Philco Corp., Range Div.) 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, York, England ( Consul tan t) SEARSON, Leslie James Oakes & Co. (Riddings) Ltd. Jacksdale, ~otts, England SElnON, Max Y. (RF) Food Machinery & Chemical Corp. 161 E. 42nd St., New York 17, N. Y. SEBRIKG, George F. (W) Paper Makers Importing Co., Inc. 44 S. Second St., Easton, Pa. SECKMAN, Harr}' D. (WI) 220 W. Third, Peru, hid. (Square D Co.) SECORD, Robert N. (W) Godfrey L. Cabot, Inc. Research & Development Dept. 38 Memorial Dr., Cambridge 42, Mass. SEDE!'\KA, Anthony (E) 1086 Magnolia Dr .. Washington. Pa. (B. F. Drakenfeld & Co., Inc.) SEELEY, E. L. (W) 800 Lotus Ave., Chester, W. Va. (Harker Pollery Co.) ROSTER 95 SEEMANN, Wilhelm Pipersgatan 3, Stockholm, Sweden SEGELER, C. G. (M) American Gas Assn., 420 Lexington Ave. New York 17, N. Y. SEIDEL, Joseph (W) 255 E. Orange St., Lancaster, Pa. Radio Corp. of America) EL, Robert B. (G) Blue Ridge Glass Corp. Kingsport, Tenn. SEITZ, Wolfram (G) Glass Containers Inc. 3601 Santa Fe Ave. Los 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 Koble St., Barberton, Ohio (Ohio Brass Co.) SEMMELMAN, John O. (WI) Denti,ts Supply Co. of 1\ew York College & Grantley A\e., York, Pa. SEM PLE, John Metal Porcelains Ltd. Incandescent Heat Group Cornwall Rd. Smethwick, Staffs, England SEMPLE, William A. (R) Aluminum Co. of Canada, Ltd. Gen. Tech. Dept., 1700 Sun Life Bldg. Montreal, Que., Canada SE1\K, Johann Vienna XVII Dornbacherstr. 29, Austria (Radio Fabril: IngelenPorzellan Fabrik) SENTERS, Walter (S) Washington Brick & Lime Co., Box 2198 Spokane, Wash. RY SANITARY CORP. Marvin E. Abrams) Box 427 annington, W. Va. HTON. H. J. (G) Dominion Glass Co. Ltd. Chapple St., Hamilton, Ont., Canada SERVICE PORCELAIN , ENAMEL, INC. (Paul S. Cecil) Brill & Christie Sts. Newark 5, N. J. SERVIS, Donald H. (W) Rebertson Mfg. Co., Box 848 Trenton 5, N. J. SESLER, E. Clyde, Jr. (S) 1529 Alexander Circle, Pueblo, Colo. (Summit Pressed Brick & Tile Co.) SETCHEL, Hayden Merritt (G) 105 Tenth St., Streator, Ill. (Owens-Illinois) SEVERIN. Harold Box 787, Alfred, ]I;, Y. SEVERSIKE, CaTToll L. (W) 23 Race St., Frenchtown, N. J. (Frenchtown Porcelain Co.) SEYBERT, Earl K. (R) Davison Chemical Co. Dh. W. R Grace & Co. 101 1\. Charles St., Baltimore 3, Md. SEYMOUR, Samuel L. (G) 26 Crystal Dr., Oakmont. Pa. (Pittsburgh Plate Glass Co.) SHAFFER, E. F. (G) Ohio Pow'er Co., Newark, Ohio SHAFFER, Paul C. (G) 85 Chapel St., Seneca Falls, N. Y. (Sylvania Electric Products, Inc.) SHAH, Chunilal P. ombay Potteries & Tiles Ltd. 'pe Rd., Kurla, Bombay 37, India EK, Peter D. (W) 526 Lake St., Oak Park, Ill. SHAND, Errol B. (G) ISS Re}"IIolds Ave., Corning. N. Y. (Corning Glass Works) VOL. 35, No. 10 (1956) SHAND, Rodger L. (E) 230 Woodale Rd. Oakville, Ont., Canada (Ferro Enamels (Canada) Ltd.) SHANDS, Everett H. (E) 1930 Harlem D1vd., Rockford, III. (0. Hommel Co.) SHANER, Herbert J. (R) Ramtite Co., 2563 W. 18th St. Chicago 8, III. SHANKS, Douglas Shanks & Co. Ltd., Victorian Pottery Barrhead, Near' Glasgow, Scotllond SHANNON, Harry F. (E) L'nited States Steel Corp. Applied Res. Lab., Monroeville, Pa. SHAPIRO, Howard (BI) 1410 East Ave., 1\ew York 62. 1\. Y. (Sylvania Electric Products, Inc.) SHARDLOW, L. Russel (BI) Radio Corp. of America Harrison, N. J. SHARP, Donald E. (GF) Libbe)Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio SH:\RP. E. W. (RI) Pedro, Ohio (Lawrence Refractories Clay Co.) SHARPE, Edwin F., III 2255 Kennedy St., Philadelph:a 37, Pa. SHA\"ER, Richard C. (B) 2 Hamilton St., Auburn, 1\. Y. (Cowles Chemical Co.) SHAVER, W. W. (GF) 130 E. Fourth St., Corning, 1\. Y. (Corning Glass Works) SHAW, Anthony E. (S) Natco Corp., 327 Fifth Ave. Pittsburgh 22, Pa. SHAW, Clarence F. (WI) R. R. I, Trevor, Wise. rPickard, Inc.) SHA \\.., L. 1. (XI) Oub DelMar, Santa Monica, Calif. (Consul tan t ) SHAW, Myril C. (MF!) 563 Gates St., Pbiladelphia 28, Pa. (Asbestos Textile Institute) SHAW, Ronald H. (S) L. E. Shaw Ltd., Box 996 Halifax, Nova Scotia SHAW, Ronald R 137 Inglis St. Halifax, NO\'a Scotia, Canada SHAYNA, Michael (S) 506 S. Railway St. Swift Current, Sask., Canada (Perry Bricle & Tile Co.) SHEARER, Walter L. (R) Bartley Crucible & Refractories, Inc. IS Muirhead Ave., Box 358 Trenton 3, N. J. SHEARER, Wayne B. (E) 27 Fairview Rd., Paoli, Pa. (Foote Mineral Co.) SHEAROUSE, Lee A. (W) 326 Highland Ave., Wadsworth, Ohio (Ohio Brass Co.) SHEEHAN, Robert W. (WJ) Box 38, Saxonburg, Pa. (Du-Co Ceramics Co.) SHEETS, Herbel t D. (RI) Battelle Memorial Institute 505 King Ave., Columbus I, Ohio SHELDON, John L. (G) 179 Dodge Ave., Corning, K. Y. (Corning Glass Works) SHELDON, R. S. (E) 2215 Wilson Ct., St. Joseph, Mich. (Whirlpool-Seeger 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. (GJ) 130 BUTT St., FairfieIJ, Conn. SHENANDOAH SILICA CO., INC. (Herreld D. Thropp) 190 W. State St., Trenton 8, N. J SHENANGO CHINA, INC. (Geo. B. Zahniser) New Castle, Pa. SHEPHERD, John F. (EI) Shepherd Chemical Co. 2803 Highland A\e. Norwood, Cincinnati 12, Ohio SHERK, Donald (M) 218 Dalton Dr., Buffalo 23, N. Y. (National Gypsum Co.) SHERMER, Herman F. (G) 740 Xorthampton Dr. Silver Spring, Md. n:nited States Na\'al Ordnance Lab.) SHERRILL, Ernest (M) Westwood Ceramics Supply Co. 11250 \"". Pico Blvd. Los Angeles 64, Calif. SHERRILL, Robert R. (EI) 425 Cam'on Dr .. Glendale 6, Calif. (Bulwark Corp.) SHERWOOD, Robert F. (WFI) Ford, Bacon & Da\'is United States Operations Mission A.P.O. 74, Box K, c/o P.M. San Francisco. Calif. SHEVLIN, Thomas S. eRn Engineering E~periment Station Ohio State University Columbus 10, Ohio SHIELD. Richard (WJ) 131 W. Harris. Apt. 7 San Angelo, Texas SHIFF, Tom (R) Villa Ridge Addition, R. R. 2 Godfrey, Ill. (Laclede-Christy Co.. (Di\'. H. K. Porter Co.) SHIMADA, Hachiro Shimada Glass Laboratory' No. 2867. I-Chome, Sann(\ Otaku, Tokyo, Japan SHIMADA, Kuro Tovo Glass Co., Ltd. No'. 47 Shimo-3-Chome Fukushimaku, Osaka, Japan SHIMER, J. B. (GI) Knox Glass Co. Knox, Pa. SHIMMAl\', Norman C. (M) 2348 Ventura Dr.. R. R. 4 Walled Lake. Mich. (Champion Spark Plug Co.) SHIl\'N, Joseph M., Jr. (R) 1908 Ramblewood Rd., Apt. D Baltimore 14, Md. (Western Electric Co.) SHIPE. Paul J. (R) Moraine Prod. Div., General Motors Corp. 1420 Wisconsin Blvd., Dayton I, Ohio SHIPLEY, Linden E. (W) 92 Crestview Rd., Columbus 2, Ohio (Orton Ceramic Foundation) SHIPLEY, R. A. (S) Natco Corp., 327 Fifth Ave. Pittsburgh 22, Pa. SHIPPY. Gordon D. (E) 2720 W. Chambers, Milwaukee. Wise. (A. O. Smith Corp.) SHIVELY, R. R. (GFJ 83 Woodland Dr., Pittsburgh 28. Pa. (C"nsu! tan!) SHIVELY, Robert R, Jr. (G) 2416 Gulf Bldg., Houston 2, Texas (Olin Mathieson Chemical Corp.) SHOEMAKER, George W. (S) Arketex Ceramic Corp., 6 N. Walnut St. Brazil, Ind. SHOFFNER, James E., Jr. (G) 118 Cherokee Rd., Nashville 5, Tenn. (Ford Motor Co.) SHOFSTALL, N. F. (M) General Electric Co. 1811 LeMoyne Ave., Syracuse, N. Y. ROSTER 97 , .t SHO:\EB:\RGER, F. J. lG) General Electric Co. Glass Technolog)' Lab. 1133 E. 152nd St., Cleveland, Ohio SHO:\KWILER, Francis P. (RI) 2516 Milford Dr., Pittsburgh 34, Pa. (Harbison- \\. alker Refractories Co.) K, Thurston W. (M) 69 McVey Blvd., 'V. 'orthington, Ohio (Harrop Ceramic Sen'ice Co.) SHOOK, William B. (I) 434 Chatham Rd., Columbus 14, Ohio SHOOT, Lyle E. (WJ) Box 491, State College, Pa. (Erie Resistor Co.) SHOPHER, Sterling D. (RI) 1120 E. Jackson, ~1exico, Mo. (Mexico Refractories Co.) SHORTER, A. J. Bonnybridge 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.) SHUMAN, Albert (G) Polarizing Instrument Co. Irvington-on-Hudson, New York, N. Y. SICKER, Richard 197 Park Ave., East Orange, ~. J. SIDDIQI, Iftikhar A. 4238 12th ~. E., Seattle 5, Wash. SIDWELL, John L. (M) H. C. Spinks Clay Co., Inc. 1000 First :\ational Bank Bldg. Cincinnati 2, Ohio SIEBACH, Ralph E. 131 Rebecca St., Kittanning, Pa. SIEBER, Karl E. (G) Corning Glass Works, Albion, Mich. SIEBERT, Robert (S) Dennings Point Brick Works, Inc. x ISO, Beacon. K. Y. RT, A. C. (GF) wens-Corning Fiberglas Corp. Newark, Ohio SIEGWALD, Clyde R. (WI) 4422 San Carlos Ave., Tampa, Fla. (Tiffany Tile Co.) SIEKMAKN, John F. (R) Aluminum Co. of America 520 ~. Michigan Ave., Chicago 11, Ill. SIEVERT, Guilio E. (R) 833 Oregon Ave., San Mateo, Calif. (Gladding, McBean & Co.) SIGWART, Harry J. (G) 732 Beechurst Ave. Morgantown, W. Va. (Seneca Glass Co.) SIKES, James W. (W) . Florida Tile Industries, Inc., Box 451 608 Prospect St., Lakeland, Fla. SILK, Karl Messrs. Jury Holloware Ltd. Brierley Hill, Staffs, England SILVERMAN, Alexander (GFI) Universit) of Pittsburgh 2525 Cathedral of Learning Pittshurgh 13, Pa. SILVERMAN, William B. (GF!) Owens-Illinois, Technical Center 1700 K Westwood Ave., Toledo I, Ohio SIMAVILLA, Juan M. Cristalerias Rigolleau S. A. Berazatequi, F.C.N.G.R. Buenos Aires, Argentina SIMCOCK, H. J. "Cranford," Lovatt Ave. Milehouse, Newcastle Stafford, England _ ON, A.L. (GI) wens-Corning Fiberglas Corp. oledo, Ohio SIMMEN, Fred G. (W) 964 Terrace Blvd., Trenton 8, N. J. (Fairfacts Co.) VOL. 35,No. 10 (1956) SIMMINGSKOLD, Bo Glasinstitutet i Vaxjo, Smedjegatan 3 Vaxjo, Sweden SfMMO:\S, E. E., Jr. (M) 455 S. Oakland Ave., Pasadena 5, Calif. (Consultant) SIMMOKS, George A., Jr. (G) Pittsburgh Plate Glass Co. Res. Labs., Creighton, Pa. SIMMO~S, Milton L. (E) Ferro Corp., International Div. 4150 E. 56th St., Cleveland 5, Ohio SIMO:\, A. G. (WJ 8530 Wentworth St., Sunland, Calif. (Gladding, McBean & Co.) SIMONDS WORDEN WHITE CO. (F. R. Henry) 1101 ~egley Pi. Dayton 7, Ohio SIMO:\S, T. Mitchell, Jr. (WI) 9186 E. Jaylee Dr. Temple City, CaIH. (B. F. Wagner & Co.) Sn10:\SEK, Eduardo C. Companhia Paulista de Mineracao Caixa Postal 3008, Sao Paulo, Brazil SIMO~SEN, Victor G. Ceramica Sao Caetano S. A. Caixa Postal 278, Sao Paulo, Brazil Sn10:\SO~, Robert B. Haney Aluminum Co. 190th & Western, Torrance, Calif. SIMPSOK, Frederick H. (EJ) 1521 W. 51st., Seattle 7, Wash. (Boeing Airplane Co.) SIMPSO~, Harold E. (GFI) State Unh'ersity of Kew York, College of Ceramics, Alfred, N. Y. SIMPSOK, John A. (5) F. B. McFarren Ltd. Streetsville, Ont.. Canada SIMPSON, John D., Jr. (S) Statesville Brick Co., Box 471 Statesville, N. C. SIl\CERE, John F., Jr. (EJ) 5325 W. Henderson Ave. Chicago 41, Ill. (Industrial Publications, Inc.) SIl\CLAIR, Robert R. (RI) 510 S. Osage Ave., Inglewood, Calif. (Missouri Refractories Co.) SINGER, Felix (F) Keramos House, 46, Castlemaine Ave. South Croydon, Surrey, England (Consultant) SIQUEIRA, Pedro M. Ceramica Sao Caetano S. A. Rua Boa Vista 84-6 Sao Paulo, Brazil SIROVY, Georke (E) Century Vitreous Enamel Co. 6641 S. Narragansett Ave. Chicago 38, Ill. SISKA, Albert H. (EI) 822 Ellis Ave., Ashland, Ohio (Ferro Corp.) SISSONS, Gordon H. (S) 320 First St. Medicine Hat, Alta, Canada (Medicine Hat Brick &I Tile Co., Ltd.) SIXT, Lawrence F. (W) Cain St., East Liverpool, Ohio (Kew Castle Refractories Co.) SJOGREN, John K. (R) Prospect St., Princeton, Mass. (Norton Co.) SKEOCH, Thomas A. 608 Second St., Golden, Colo. SKEOCH, Walter K. (M) Southern California Minerals Co. 320 S. Mission Rd. Los Angeles 33, Calif. SKIKKER, Kenneth G. (RI) 4223 First St., S. E., Apt. 203 Chesapeake Gardens Washington 20, D. C. (Naval Research Laboratory) SKOGEN, Haven S. (G) 2524 N. Dora, Franklin Park, Ill. (E. 1. du Pont de Nemours &I Co.) SKURCENSKI, Anton (G) H. 1. Thompson Fiber Glass Co. 1733 Cordova St., Los Angeles 7, Calif. SKWARLO, Edward (G) 706 S. Ioka, Mount Prospect, Ill. (Vacuum Ceramics, Inc.) SLAUGHTER, James A. (G) Pittsburgh Plate Glass Co., Box 15 Crystal Cit), Mo. SLAUGHTER, John 1. (B) Corning Glass VI'orks 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. SLUSS, Olen R. (W) Claiborne Towers, Rm. 1026 New Orleans, La. (American-Standard) SLYH, John A. (BF!) American Encaustic Tiling Co., Inc. Lansdale, Pa. SMALL, Carlton F., Jr. (RJ) 9 Hawthorne Rd., Cinnamon Hill Bridgeport, Pa. (E. J. La,'ino & Co.) SMALLEY, Howard F. (EI) Pemco Corp., Research Di,. 2554 Greenmount Ave. Baltimore 18, Md. SMELT, J. A. M. Bibliotheekcentrale K. V. Philips' Gloeilampenfabrieken Eindhoven, Holland SMITH, Adrian F. (Gl 86 E. Third St., Corning. ~. Y. (Corning Glass Works) SMITH, Alden J. (W) R. R. 1, Care)', Ohio (Porcelain Products Co.) SMITH, Allen M. Box 70-105, Havelock, N. C. SMITH, A. 0., CORP. (W. A. Deringer) 3533 N. 27th St., Milwaukee 1, Wise. SMITH, Arnold N. Pilkington's Tiles Ltd. Clifton Junction, Manchester, England SMITH, C. A. (RFI) Mexico Refractories Co. Better Refractories Bldg., Mexico, Mo. SMITH, Dudle)' C. (G) Oakdale Dr., Millville, K. J. (Kimble Glass Div., Owens-Illinois) SMITH, Earl R. (G) Pittsburgh Plate Glass Co. Works Ko. 25, Greensburg, Pa. SMITH, Ellis E., Jr. (B) 527 North St., East Aurora, N. Y. (Whittaker, Clark & Daniels, Inc.) SMITH, Gail (G) Corning Glass Works, Corning, K. Y. SMITH, G. Sherwood Department of Ceramic Technology Pennsvlvania State University Unive~sit) Park, Pa. SMITH, Harlan D. (R) Wellsville Fire Brick Co. Wellsville, Mo. SMITH, Harry W. (W) Old Town Rd., Shelton, Conn. (American Lava Corp.) SMITH, Herbert A. (D) Palm, Fechteler & Co., Box 750 East Liverpool, Ohio SMITH, Hillard A. (WI) 28 Buchanan 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.) ROSTER 99 I I' I l f I F Ir.-. .... If i jMITH, James Cnited Fireclay Products, Ltd. 140 W. George St. Glasgow C. 2., Scotland ;MITH, James N., Jr. (D) "Arborlaen", R. R. 5, New Bern, N. C. ew Bern High School) ; J. Ernest (X) Riveria Ave., Sarasota, Fla. eram-I-Cast Corp.) ;MITH, John Jacob (G) 1404 Pacific Ave., Brackenridge, Pa. (Pittsburgh Plate Glass Co.) ;MITH, J. Ryan, (W) Fairlacts Co., Fairfacts St. Trenton 8, N. J. jMITH, J. Talbot (M) 21 i Elm Ave., Morrisville, Pa. (United Clay Mines Corp.) ;MITH, Karl W. (R) Charles Taylor Sons Co. Box 58 Annex Sta. Cincinnati 14, Ohio 3MITH, Kenneth E. (DFI) American Art Clay Co. 4717 W. 16th St. Indianapolis 44, Ind. 5MITH, Leland (51) Box 294, Darlington, Beaver Co., Pa, (Central Commercial Co.) SMITH. Peter W. (W) Gladding, McBean & Co. 2901 Los Feliz Blvd. Los Angeles 39, Calif. SMITH, Ralph Ogden (G) 30 Chestnut St., Salem, N. J. (Gayner Glass Works) SMITH. Richard D. (1) Ferro Corp., Far East Diy. 130 Nathan Rd., 205 Princess Bldg. Kowloon, Hong Kong SMITH, Richard M. (R) 51'215 Seneca St., Corning, N. Y. (Corning Glass Works) RRe.ynKo.ld(sRA) ve., Corning, 1\. Y. rning Glass Works) SM H, Ronald J. Box 847, Alfred, N. Y. SMITH, Rowland D. (G) 12 Woodlawn Ave., Corning, N. Y. (Corning Glass Works) SMITH, R. Thomas 206 W. Ninth St., Rolla, Mo. SMITH, Rufus J., Jr. (5) 306 S. Jefferson St., Goldsboro, N. C. (E. 1. du Pont de Nemours & Co.) SMITH, Sidne)' L. 16 Munson St., Le Ro}', N. Y. SMITH & STONE, LTD. (T. Wold) Georgetown, Ont., Canada SMITH, T. Sydney Brightwood, Va. SMITH, Walter F., Jr. (M) United Clay Mines Corp. 101 Oakland St., Trenton 6, N. J. SMITH, William E. (G) 5030 Janet, Sylvania, Ohio (Owens-lllinois) SMITH, William L. (M) Harris CIa)' Co., Spruce Pine, N. C. SMITH, William R. 20 DeLancy Dr., Geneva, 1\. Y. SMOCK, Alden W. (G) 41 Euclid Ave., Columbus I, Ohio (North American Aviation Inc.) SMOKE, Edward J. (W) 11 Edgewood Rd., Metuchen, N. J. (Rutgers University) SMOOT.-Jack M. (DI) 4 mblee, Ga. ogwood -Ceramics) ERS, W. J. (B) . hio Brass Co., Barberton, Ohio SMYLY, James P. (W]1) Box 4123, Chattanooga, Tenn. (American Lava Corp.) VOL. 35, No, 10 (1956) S:>!YTH, Harold T. (G) :\ew Jersey Ceramic Research Station Rutgers University, , :\ ew Brunswick, N. J. S:\ELL, Ricbard G. (G) 1717 Calumet Ave.,_Toledo 7, Ohio (Libbey-Owens-Ford Glass Co.) S:\IDER, Carl A., Jr. (G) 4820 Girard Rd., Pittsburgh 27, Pa, l Kaiser Aluminum & Chemical Sales, Inc.) SXIDER, Stuart M. (S) 325 Club Dr., Salisbury, N. C. (Taylor Clay Products Co.) SXODDY, John H. (W) Gladding, McBean & Co. 2901 Los Feliz Blvd. Los Angeles 39, Calif. SXOW, L. James (S) ~!iffiinville, Pa, (Alliance Clay Product Co.) S:\ O\\' , Roland B. (RF) l.:nited States Steel Corp. Applied Res. Lab., Monroeville, Pa. S:\YDER, Ernest B. (R1) Wheeling Steel Corp. Steubenville South Plant Steubenville, Ohio S1\YDER, Nicholas H. (W) 531 Maple Ave., Trenton 8, N. J. (Rutgers University) SOBOK, Leon E. Box 787, Alfred, N. Y. SOCIETA ITALIANA REFRATTARI MARGHERA AZIONARIA (Domenico Giacomelli) Via Industrie 52, Casella Posta Ie 308 Yarghera, Venice, Italy SOCIETE FRANCAISE DE CERAMIQUE (Y. Letort) Service de Documentation 23, rue de Cronstadt Paris XV, France SOCIETE PROFESSIONNELLE DES PRODUITS FRANCAIS DE TERRE CUITE (M. Jacques Lahansat) 23, rue de Cronstadt Paris XV, France SOCIETY OF GLASS TECHNOLOGY (R. W. Douglas) "Thornton" Hallam Gate Rd., Sheffield 10, England SOCONY MOBIL OIL CO. (W. B. Stevens) 150 E. 42nd St., New York 17, N. Y. SODERSTRUM. William K. (S1) 374 Davis Rd., Batavia, III. (Structural Clay Products Research Foundation) SOLOMON, Earl (RI) . 1657 Boston Ridge Rd. Orchard Park, N. Y. (Electro Refractories & Abrasives Corp.) SOLVAY PROCESS DIV., ALLIED CHEMICAL & DYE CORP. Librarian, Box 271, Syracuse I, N. Y. SOMANY, O. M. Hindusthan National Glass Mfg. Co., Ltd. 2. Wellesley PI., Calcutta I, India SO~fERS, A. J. Borax Consolidated, Ltd. Borax House, Carlisle PI. London S.W.l, England SOMMER, Alfred (W) 89 Fairmount Ave., Kingston, N. Y. (Ferroxcube Co. of America) SOMMERVILLE, J. L. (GI) 283 Atlantic St., Bridgeton, N. J. (Owt':lS-I1linois) S01\DLES, Merrill C. (W) Paden City Pottery Co. Paden City, W. Va. S01\ENSHINE, Lewis (WJ) 2141 Holland Ave. 1\ew York 64, N. Y. (Mucon, Inc.) SOXTZ, Arthur (RI) 8054 S. Crandon Ave., Chicago 17, Ill. \ United States Steel Corp.) SOSMA1\, Robert B. (Honorary, BFI) School of Ceramics, Rutgers University Kew Brunswick, N. J. SOUTH, Furman, Jr. (R) Lava Crucible-Refractories Co. First National Bank Bldg. Pittsburgh 22, Pa, SOUTHERN POTTERIES, INC. (H. W. Kibler) Box 279 Erwin, Tenn. SO\VERS, Robert M. (G) 8 Edgerton Ln., Dearborn, Mich. I Ford Motor Co.) SOWMAN, Harold G. (R) 1480 Grand Blvd., Schenectady, N. Y. (Knolls Atomic Power Lab., General Electric Co.) SOXMAN, Edwin J. (I) Box 117, Alfred, N. Y. SPAIN, Richard W. (G) 2315 Drummond Rd., Toledo, Ohio ( Owens- Illinois) SPANGENBERG, William C. (MI) 780 E. Fillmore Ave. East Aurora, N. Y. (Titanium Alloy Mfg. Div.,) National Lead Co.) SPARKS, Edgar W. (W) 406 Unaka Way, Erwin, Tenn. (Southern Potteries, Inc.) SPARROW, Paul F. (R) 2447 Old Washington Rd. Bridgeville, Pa. (Norton Co.) SPElL, Sidney (GI) Johns-Manville Research Center Manville, N. J. SPENCE, C. F. (E) 1005 Hartford St., Worthington, Ohio (Chicago Vitreous Corp.) SPENCE, Harold 1. Klabin Irmaos & Cia Av. Suburbana, 5472 Rio de Janeiro, Brazil SPENCER, Charles D. (GF) 2113 Taylor Rd., Cleveland 12, Ohio (Lamp Dept., General Electric Co.) SPENCER-STRONG, G. H. (EFI) 109 Witherspoon Rd., Baltimore 12, Md. (Pemco Corp.) SPENGLER, H. H. (G) General Electric Co. Lamp Div., Glass Technology Lab. 1133 E. 152nd St., Cleveland 10, Ohio SPERRING, Richard F. (GJ) 138 37th St., N. E. Cedar Rapids, Iowa (Pittsburgh Plate Glass Co.) 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. (RI) North American Refractories Co. Mt. Union, Pa. SPIRKO, Edward J. Box 827, Alfred, N. Y. SPLANN, Mary Theresa (G) Corning Glass Works, Corning, N. Y. SPOERRY. Henry J. Schmidheiny & Co., Ltd. Heerbrugg, (St.G.) Switzerland SPRIGGS, Richard M. 408 W. Nevada St., Urbana, Ill. SPROAT, Ira E. (WFI) R. T. Vanderbilt Co., 230 Park Ave. New York 17. N. Y. SPROUL, James D., Jr. Delevan, N. Y. SPlJRCK, Richard F. (W) Manford Ln., Wilton, Conn. (Machlett Laboratories) ROSTER 101 _,... I .PYL'T, Albert B. (G) Raytheon Manufacturing Co. 55 Chapel St., Newton, Mass. ;QUARE D CO. (Ralph E. Hanna) Molded Insulation Div., Peru, Ind. ;QIR, Arthur A. (S) Walnut St., Philadelphia 3, Pa. ributor) ;TA: ICHE PORZELLAN. MANUFAKTUR BERLIN (Gerhard Muller) Hartmannstrasse 1-3 (13a) Selb/ObeTfr. U. S. Zone, Germany ;TAATS, Henry N. (E) Applied Research, Inc. 135 S. LaSalle St., Chicago 3, Ill. ;TACH, Otto R. (R) 90 W. Grimsb)' Rd. Kenmore 23, N. Y. (Carborundum Co.) ,TADLER, Leo E. (G) 1057 Plymouth St., Windsor, Conn. (Hartford-Empire Co., Div. Emhart Mfg. Co.) 3TAFFICKER, Charles F. (G) 506 Grandview Ave., Vineland, N. J. (Kimble Glass Co.) ,TAFFORD, Ray (M) Southern Calif. Minerals Co. 320 S. Mission Rd. Los Angeles 33, Calif. 3TAFFORD, W. L. (RFI) Johns-Manville Research Center Box 159, Manville, N. J. ,T1\HMAN!\, John A. (B) 4275 Verdugo Rd. Los Angeles 65, Calif. (Gladding, McBean & Co.) 3TALEGO, Charles J. (G) 227 N. Fifth St., Newark, Ohio (OwensCorning Fiberglas Corp.) 3T~ER' Thomas L. (1) '. Norwich Ave., Columbus I, Ohio 3 , Murray R. (W) nadian Porcelain Co. Ltd. Box 428, Hamilton, Ont., Canada nANDARD BRICK & TILE CORP. (Clifford A. Kleymeyer) 123 N. W. Fourth St. Evansville 8, Ind. STANDARD ULTRAMARINE & COLOR CO. (L. F. Ma)') Huntington 18, W. Va. STANGL, J. M. (W) Stangl Pottery, Trenton 4, N. J. STANGL POTTERY (J. M. Stangl) Trenton 4, N. J. STANISLAW, T. Stanley (W) Box 354, Centerport, L. 1., N. Y. (Sylvania Electric Products, Inc.) STANLEY, George V. (E) 2752 W. 90th PI. Evergreen Park 42, Ill. (Crane Co.) 3TANLEY, Robert J. (G) M. H. Detrick Co., 10600 Puritan Ave. Detroit 38, Mich. 3TANKARD, Wilford T. (D) J. A. Dedouch Co., 608 Harrison St. Oak Park, Ill. STANSFIELD, James R. D. (5) Streator Brick Co. Div. Hydraulic-Press Brick Co. Streator, Ill. STANWAY, Miss B. Elm Works Ltd., Summerstown, Tooting London -5. W. 17, England ST.RTH, John Edwin shlawn Rd., Rugby iclc, England (British Thomson-Houston Co., Ltd.) STAPLETON, Robert E. (W) 22 Chestnut St., Franklinville, N. Y. (Hi 0 Div., Aerovox Corp.) VOL. 35, No. 10 (1956) STAPP, John A., Jr. (G) Union Carbide & Carbon Corp. -Silicones Div. E. Park Dr. & Woodward Ave. Tonawanda, N. Y. STAR PORCELAIN Cb. (Daniel W. Luks) Muirhead Ave., Trenton 9, N. J. STARK CERAMICS, INC. (J. H. Stewart) Box 230 Canton I, Ohio STARK, R. E. (W) R. R. 5, GreensDu'rg, Pa. (Stupakoff Div., Carborundum Co.) STARK, W. F. (E) Promat Division, Poor & Co. 851 S. ~larket St., Waukegan, Ill. STARKEY, Daryle D. (M) R. R. I, Willard, Ohio (Starkey Engineering & Machinery Co.) STARKEY, Edward A. (M) 1068 Woodhill Rd., Mansfield, Ohio (Starkey Engineering & Machinery Co.) STARKEY, Elmer A. (R) 22397 Fairlawn Circle, Apt. 10 Fain'iew Park 26, Ohio (Korth American Refractories Co.) ST_-\THIS, Andrew W. (RI) 5917 Car)', Cincinnati 24, Ohio (Charles Ta)'lor Sons Co.) STAUDT, August (W) 264 Water St., Perth Amboy, N. J. STAUFFER CHEMICAL CO. (M. P. Kerins, Jr.) 380 Madison Ave., New York, N. Y. STAUFFER, Kenneth H. B. (W) Robertson Mfg. Co., Box 848 Trenton 5, N. J. STAVROLAKIS, J. A. (B) 915 Leonard Dr., Rock Hill 19, Mo. (Crucible Steel Co.) STEARKS, \Villiam E. (E) A. O. Smith Corp. 3533 N. 27th St., Milwaukee, Wise. 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, N. C. STEELE. C. N. (S) J. C. Steele & Sons, Inc. Box 951, Statesville, N. Coo STEELE. F. Montgomery (S) J. C. Steele & Sons, Inc. Box 951, 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-onTrent. England STEELE, Howard E. (G) Westinghouse Electric Corp. Hoult Rd., Fairmont, W. Va. STEELE, Hoyt 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., & SONS, INC. (J. C. Steele, Jr.) Statesville, N. C. STEELE, Richard E. (M)' Ram, Inc., 1064 W. Fifth Ave. Columbus 8, Ohio a:STEELE, William Perrin (S) 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.) STEIN, Colin H. 7 Melville Terrace, Stirling, Scotland (John G. Stein a: Co., Ltd.) STEIN, Ronald C. Messrs. John G. Stein & Co., Ltd. Bonnybridge, Scotland STEIK, Sidney J. (B) International Resistance Co. 401 N. Broad St., Philadelphia 8, Pa. STEINBOCK, E. A. (R) WhipMix Corp., 411 W. Avery St. Louisville 8, Ky. STEI!\ER, Harry C. (G) General Electric Co. Power Tube Dept. Schenectady 5, K. Y. STEINHOFF, Fred L. (WFI) Brick 6- Clay Record-Ceramic Industry 5 S. Wabash, Chicago 3, Ill. STEIKROEDER, Fritz Didier-Werke A. G., Lessingstr. 16 \\'iesbaden, Germany STELLE, John A. (S) Arketex Ceramic Corp., Brazil, Ind. STE!\QL'IST, Donald R. (X]) Box 685, Redmond, Wash. (Boeing Airplane Co.) STEPHENS, Dan E. (R) North State Pyrophyllite Co. Pomona, K. C. STERLING CHINA CO. (William T. Pomeroy) East Liverpool, Ohio STERLING GRINDING WHEEL CO. (W. R. Morgan) Box 801, Tiffin, Ohio STERLING, Harry S. (G) Corning Glass Works Harrodsburg, Ky. STERN, George (B) American Sinteel Corp. 320 Yonkers Ave., Yonkers 2, K. Y. STERRY J. Patrick 346 Macassar Dr., Pittsburgh 36. Pa. STERRY, W. Michael (E) 5124 Fifth N. E., Seattle 5, Wash. (Boeing Airplane Co.) STETSON, Harold W. (B) R. R. 2, Painted Post, N. Y. (Corning Glass Works) STETSON, William C. (WI) Box 44, Saxonburg, Pa. (Saxonburg Ceramics) STETTINlUS, K. E. (W) Lapp Insulator Co., Inc., Le Roy, N. Y. STETTNER, Donald H. (EI) 976 Center Ave., Lancaster, Pa. (Radio Corp. of America) STEUBENVILLE POTTERY CO. (W. J. Mould) Box 1030 Steubenville, Ohio STEUERNAGLE, J. H. (G) Brockway Glass Co., Inc. Wood St., Brockway, Pa. STEVENS, E. G. 1420 N. Hermosa Ave. Hermosa Beach, Calif. STEVENS, Frank J. (WI) 414 P.rospect St., Nutley 10, N. J. (Isolantite Mfg. Corp.) STEVENS, Joe (R) Murray Refractories Co., Box 338 Murray, Utah STEVENS, L. M. (R) a:2907 Alabama St., La Crescenta, Calif (Gladding, McBean Co.) STEVENS, Robert P. (RI) Chicago Fire Brick Co. 1625 W. 104th Pl., Chicago 43, III. STEVENS, W. B. (W) Socony Mobil Oil Co. ISO E. 42nd St., New York 17, N. Y. STEVENSON, James K., Jr. (RI) R. R. 2, Mundelein, III. (Norton Co.) STEVENSON, Samuel (W) 1967 Grafton Rd., Elyria, Ohio (Harshaw Chemical Co.) STEVENTON, Kenneth John Steventon & Sons Ltd. C1edford Works Middlewick, Cheshire, England ROSTER 103 " i I ! I I :\, " l. :. f:) ,TEWART, Alex (E) National Lead Co., III Broadway New York 6, N. Y. ,TEWART, Isaac (G) New York Testing Laboratories, Inc. 47 West St., New York 6, N. Y. 'T.RT, J. H. (5) k Ceramics, Inc., Box 230 on I, Ohio ST ART, John A. (GI) 419 Locust Ave., Washington, Pol. (B. F. Drakenfeld & Co., Inc.) STEWART, Malcolm (M) Commercial Minerals Co. 310 Irwin St., San Francisco 7, Calif. ,TEWART, Wilfred H. (R) United States Reduction Co. 4610 Melville, East Chicago, Ind. STICKEL, William C. (R) Aluminum Co. of America 123 S. Broad St., Philadelphia, Pol. STIEF, W. C. (W) Mt. Clemens Pottery Co. 158 S. Wilson Blvd., Mt. Clemens, Mich. STILL, Henry P., Jr. 31 Stoneleigh Rd., Worcester 6, Mass. (Xortoll Co.) STILLWATER CLAY PRODUCTS CO. (J. P. Duffy) Lock Drawer 32 Uhrichsville, Ohio STOCK, Donald F. (R) 289 Maxwell Dr., Pittsburgh 36, Pol. (Harbison-Walker Refractories Co.) STOCKDALE, George F. (G) 49 Coming Blvd., Coming, N. Y. (Corning Glass Works) STOCKSLAGER, Theodore F. (W) Carborundum Co. 24800 Lakeland Blvd. Cleveland 32, Ohio STODDARD, Stephen D. (RI) 2974 B Walnut, Los Alamos, N. M. (Los Alamos Scientific Laboratory) STOEN, Roger C. (51) f nnelton Sewer Pipe Co. nelton, Ind. 5 , Alfred A. (W) 4 North St., Sun Prairie, Wisc. (Wisconsin Porcelain Co.) STOHL, L. A. (W) Wisconsin Porcelain Co. 120 Lincoln St., Sun Prairie, Wisc. STOIA, Pfc. John Z. (WJI) US 52378935, Btry B663rd F.A. Bn. APO 331, San Francisco, Calif. STOLLER, Arthur 1. (Wn Radio Corp. of America Princeton, N. J. STOLTE, Norman H. (El) 3974 Orchard Rd. Cleveland Heights 21, Ohio (Harshaw Chemical Co.) 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 Herts, England STONE, F. R. (R) Canada Firebrick Co., Ltd. 4741 St. Ambroise St. Montreal, Que., Canada STONE, Robert J. (M) John W. Higman Co. 24 State St., New York 'I, N. Y. STONE, Robert L. (BFl) Dept. of Ceramic Engineering 4 iversity of Texas, Austin 12, Texas , S. A. (M) 'ster Concentrator Co. 1 Glasrow Ave., Fort Wayne, Ind. STONG, Guy E. (G) 926 W. Water St., Elmira, N. Y. (Coming Glass Works) VOL. 35, No. 10 (1956) STOOKEY, StanIe)' D. (GF) 145 Pritchard Ave., Coming, N. Y. (Corning Glass Works) STOOPS, Robert F. (RI) Metallurgical Products Dept. General Electric Ce., Box 237 Roosevelt Park P. O. Detroit 32, Mich. STORER-FOLT, John P. (R]I) . I Benlamond Ave., Apt. E. Toronto 13, Ont., Canada (Refractories Engineering & Supplies, Ltd.) . STOTT, A. E. Edward Johns & Co., Ltd. Armitage Sanitary Pottery Xew Rugeley, Stafford, England STOL'T, John R. (W) 306 E. Murray St., Macomb, Ill. (IlIinois Electric Porcelain Co.) STOl'T, Joseph V. (E) 104 S. Fourth Ave. Highland Park, N. J. (~Ietal & Thermit Corp.) STOUT, Lester L. (B) Ohio State University Research Foundation Columbus 10, Ohio STOVER, Edward R. (B) General Electric Co. Research Lab. 243 MB Box 1088, Schenectady 8, N. Y. ST. PIERRE, Philippe D. S. (B) General Electric Co., Research Lab. ~Ietallurgy & Ceramics Div. Box 1088, Schenectady, K Y. STRADLEY, J. Grant (I) 1950 Korbel Ave., Lot 93 Columbus 11, Ohio STRADLEY, Norman (EI) ~Iinnesota Mining & Mfg. Co. 2301 Hudson Rd., St. Paul 6, Minn. STRAIGHT, Lee H. (S) Iowa Clay Products Co. Centerville, 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, Ill. STRIMPLE, J. H. (B) National Lead Co., Titanium Div. . Box 58, South Amboy, N. J. STRDiGFELLOW, Allen E. (R) 544 Woodland Ave., Haddonfield, N. J. (I-T,E Circuit Breaker Co.) STROD, Arvid J. (El) Industrial Metals Improvement Co. The Park Bldg., Pittsburgh 22, Pol. STRONG, Kenneth B. (W) 4624 Belmont Park Terrace Nasbville 12, Tenn. (Titanium Alloy Mfg. Div., National Lead Co.) STROTT, Adolf J. (R) Kearfott Co., Inc., Ceramic Dept. Little Falls, N. J. 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, Pol. STRQUPE, Howard E., Jr. (Wl) 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. Johnson) Geneva, Ill. STRUEBING, Harold J. (R) 1215 Military Rd., Buffalo 17, N. Y. (Richard C. Remmey Son Co.) STUART, Derald A. (B) Thurston Hall, Cornell University Dept. of Engr. Mat., Ithaca, N. Y. STL'BBINS, William J. (W) Rio Atoyac 26-14, Mexico 5, D. F. ( Consultant) STl'BBS, John M. (M) National Gypsum Co. 3013 Boudinot Ave. Cincinnati 38, Ohio STUCKEY, Jasper L. (X) 1911 Sunset Dr., Raleigb, N. C. (Korth Carolina Dept. of Conservation & Development) STUNTZ, Robert P. (R) Babcock & Wilcox Co. 105 S. LaSalle, Chicago 3, Ill. STUPAKOFF DlV. CARBORUNDUM CO. (Semon H. Stupakoff) Latrobe, Pol. STL'PAKOFF, Semon H. (W) Stupakoff Div., Carborundum Co. Latrobe, Pol. STYER, Charles A. (R) II Roxbury Rd., Forest Hills Pittsburgh 21, Pol. (Vesuvius Crucible Co.) STYHR, Karsten H., Jr. III S. Fourth Ave. Highland Park, K. J. Sl'BBARAO, Eleswarapu C. Pennsylvania State University College of Mineral Industries Dept. of Ceramics University Park, Pa. Sl'BRAHMANYAM, Sanga V. (G) I-H Arlene Village, Millville, K J. (T. C. Wheaton Glass Co.) Sl'BRAMANIAN, D. R. Burn & Co. Ltd. Refractory & Ceramic Group 12 Mission Row, Calcutta I, India SUCH CLAY CO. (M. M. McHose, Jr.) Box 47, Perth Amboy, N. J. SCLENS, Henry A. (M) Ceramic Supply Co., Div. Ferro Corp. Box ]51, Crooksville, Ohio SULLIVAN, Eugene C. (GF) Coming Glass Works, Coming, N. Y. SULLIVAN, John D. (BFl) BattelJe Memorial Institute 50S King Ave., Columbus I, Ohio Sl'LLIVAN, Joseph C. (G) 38 Fulton St., Coming, N. Y. (Coming Glass Works) SL'LLIVAN, Paul A. (Gl) 624 Adeline Dr., Webster, N. Y. (Bausch & Lomb Optical Co.) Sl'MMERS, E. W. (G) Owens-lllinois, Technical Center 1700 N. Westwood Ave. Toledo 7, Ohio Sl'MRELL, FerralJ N. (E) 707 Henry St., Uniondale, L. I., N. Y (Hardwick, Hindle, Inc.) SUN, K. H. (GF) 2]31 Lindsay Rd., Pittsburgh 35, Pa. (Westinghouse Electric Corp.) SUPAR Ceramic Institute Bandung, Java, Indonesia SUR ENAMEL &: STAMPING WORKS, LTD. (M. M. Sur) 24 Middle Rd., Entally Calcutta 14, India SUR, M. M. Sur Enamel &: Stamping Works, Ltd. 24 Middle Rd., Entail)' Calcutta 14, India SURFACE COMBUSTION CORP. (Harvey C. Weller) 2375 Dorr St. Toledo I, Ohio ROSTER 105 .. JRFLEET, Harold Kaylene Laboratories, Waterloo Rd. London, N. W. 2, England (Kaylene (Chemicals) Ltd.) UTHERLAND, Clark (5) . Robinson Clay Product Co. ~ State St., Akron 9, Ohio U LAND, Frank R. (RI) ainbow Dr., Kokomo, Ind. ( a)'nes Stellite Co.) UTPHEK. F. G. (X) 2605 Central Ave., Middletown, Ohio ;UTTON, Paul M. (G) Coming Glass Works, Corning, N. Y. ;UTTON, Willard H. Pennsylvania State University Mineral Industries Bldg. University Park, Pa. ;UTTOI\, W. J. (RI) 24 High St., Alfred, N. Y. (State University of New York, Colle&,e of Ceramics) 5VEC, J. ]. (WI) 3440 S. Euclid Ave., Berw}-n. Ill. (Industrial Publications Inc.) 5WAIK, Richard S. 509 Kibler Ave., Kewark. Ohio SWALM, Phaon H. (W) Box 178, Kingston, Ont., Canada (Frontenac Floor &: Wall Tile Co., Ltd.) SWAKSON, Carl H. 770 Techwood Dr., N. W., Atlanta, Ga. SWAXSON, Leroy M. 34 Hudson St., Worcester, ~lass. SWEARINGEN, Jack C. (Gl Vnited Can & Glass Co. Box 90. Ha)'ward, Calif. SWEITZER, Mark (W) 747 N. Mentor, Pasadena. Calif. (S. Paul Ward, Inc.) SWENTZEL, John P. (RI) 8960 Hennepin Ave. Niagara Falls, N. Y. (Carborundum Co.) SII Benjamin ]. (EFI) ro Corp. o E. 56th St., Cleveland 5, Ohio S A, 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 Pittsburgh 30, Pa. SWINEHART, David C. 808 E. 42nd, Apt. D, Seattle 5, Wash. SWINNERTON, Bertram B. (W) 157 Hampden Park, Tiffin, Ohio (American Radiator &: Standard Sanitary Mfg. Corp.) SWINNERTON, George R (M) 35 E. State St., Alliance, Ohio (Moore &: Munger) SYLVANIA ELECTRIC PRODUCTS, INC. (B. S. Ellefson) 1740 Broadway, New York 19, N. Y. SYLVESTER, George R (MI) Sylvester & Co. 17706 Miles Ave., Cleveland 28, Ohio SZCZEPANSKI. Daniel A. Box 757, Alfred. N. Y. SZYMASZEK, Jan Walter (R) 121 Muir Ave. Niagara Falls, Ont., Canada (MeUls Research Laboratories) -T TA, Seiichi . asaki Glass Mfg. Co., Ltd. l.I-Chome Yokokawa-Basbi Sumida-leu, Tokyo, Japan TAILBY, Roland V. (WI) Stylon Corp., Milford, Mass. VOL. 35, No. 10 (1956) TAJKOWSKI, Edward G. (G) General Electric Co. Silicone Products Dept. Waterford, N. Y. TAKAHASHI, Kakuichiro (F) Nippon Glass Co., Lul. I, Ginza 7-chome, Chuo-Ku Tokyo, Japan TALLAN, Norman M. 95 E. 12th Ave., Columbus, Ohio TALWALKAR, T. W. 8 Bagmati Rd., Jamsbedpur, India (Tata Iron &: Steel .Co., Ltd.) TANBERG, Ragnar Drammens Glassverk Drammen, Norway TAO, Yung (G) 501 S. Garfield St., Burlington, Iowa (Sylvania Electric Products, Inc.) TARNACKI, Walter J. (WI) 8417-C Loch Raven Blvd. Towson 4, Md. (Friez Instrument Div., Bendix Aviation Corp.) TARNOPOL, Milton S. (B) 943 Ninth Ave., Brackenridge, Pa. (Pittsburgh Plate Glass Co.) TASHIRO, Megumi Institute for Chemical Research Kyoto University Yoshidahon machi, Sakyoku Kyoto, Japan TATE, Frank E. (WI) 310 Tenth St., Lincoln, Ill. (Stetson China Co.) TATEM, Wil1iam A. (RJ) 7 Willow Ln., Carle Place, N. Y. (C. S. Navy) TATNALL, R. Francis Box 827, Alfred, N. Y. TAt~BER, Charles B. (B) 921 Signal Rd., Signal Mountain, Tenn. (American Lava Corp.) TAUBER, John A. (RI) 3190 Mayflower Rd. Plymouth Meeting, Pa. (E. J. Lavino &: Co.) TAYLER, John B. (W) Louisville Pottery Co., Inc. 228 E. Bloom, Louisville 8, Ky. TAYLOR, Fran (D) Gay Fad Studios, Lancaster, Ohio TAYLOR, Hiram D. (B) Shreve Manufacturing Co., Shreve, Ohio T AYLOR, Howard U. (WI) Globe-Union Inc., Ceramic Lab. 900 E. Keefe Ave., Milwaukee 12, Wise. TAYLOR, J. J. (W) Ohio Brass Co., Barberton, Ohio TAYLOR, Louis J. (W) Laboratory Equipment Corp. Box 151, St. Joseph, Mich. TAYLOR, Nelson W. (BF) Minnesota Mining &: Mfg. Co. Fluorochemicals Div. 900 Fauquier Ave., St. Paul 6, Minn. TAYLOR, Robert B. (5) Structural Clay Products Research Foundation, Geneva, Ill. TAYLOR, SMITH &: TAYLOR CO. (Phil ""right) Chester. W. Va. TAYLOR. Thomas J. (R) 816 Sterner Mill Rd., Trevose, Pa. (R. C. Remmey Son Co.) TAYLOR. William C. (GF) Corning Glass Works, Coming, N. Y. TEAGUE, A. D. (R) Babcock &: Wilcox Co., Box 923 Augusta, Ga. TEAGUE BRICK &: TILE CO. (L. R. Boyd, Jr.) Box 329, Teague, Texas TEAGUE, Jo M., Jr. (Gl) Owens-Illinois Technical Center 1700 N. Westwood Ave., Toledo 7, Ohio TEAGUE, William T. 209 McCord St., Marietta, Ga. TEETER, John N. (E) 677 Wilmot Rd., Deerfield, Ill. (Thomas C. Thompson Co.) TEETOR, Paul (SF) 72 E. Main St., Somerville, N. J. (Central Commercial Co.) TEFFT, Glenn C. (5) Claycraft Co., Shawnee, Ohio TEFFT, Phillip W. (SFI) Claycraft Co., Box 866 Columbus 16, Ohio TEFFT, Willard H. (S) Claycraft Co., Upper Sandusk)', Ohio TEGELLABORATORIET (Brick Laboratory), (Christer Enber&,) Drottning Kristinas vai, 45 Stockholm 0, Sweden TEICHMANN, Henry F. (G) Henry F. Teichmann, Inc. Box 1705, Pittsburgh 30, Pa. TEICHMANN, Henry F., Jr. (G) 645 Elderwood Dr., R. R. 2 Bridgeville, Pa. (Henry F. Teichmann, Inc.) TEICHMANK, Newton N. (G) 316 Hardy Dr., Bridgeville, Pa. (Henry F. Teichmann, Inc.) TENNERY, 21Lt. Victor ]. (BJ) Signal Corps Eng. Labs. Chemical Ph)'sics Branch Ferroelectrics Unit Ft. Monmouth. N. J. TERMAN, Mark ]. (R) Babcock &: WilCOX Co. 161 E. 42nd St., New York 17, N. Y. TERRY, Griffin E. (E) 602 E. Willow, Wheaton, Ill. (Hotpoint Co.) TERRY, Jack H. (E) 4321 Fairfield Ave., Fort Wayne, Ind. (General Electric Co.) TEXAS BRICK CO. (W. T. Gill, Jr.) Box 510, Brownwood, Texas TEXAS VITRIFIED PIPE CO. (Paul E. Hoey) Box 117 Mineral Wells, Texas THATCHER GLASS MFG. CO., INC. (Roy S. Arrandale) 1901 Grand Central Ave., Elmira, N. Y. THEOBALD, Erwin F. (5) 1516-18th St., N. W., Canton 3, Ohio (Metropolitan Brick, Inc.) THEWS, Karl B. (M) 83-09 Talbot St. Kew Gardens, L. I., N. Y. (Titanium Alloy Mfg. Div., National Lead Co.) THIELKE, Norman R. (B) National Carbon Co., Research Labs. Box 6116, Cleveland I, Ohio THIEMANN, John W. (WI) Alite Corp., Box 119, Orrville, Ohio THIEMECKE, Harry W. (WFI) Homer Laughlin China Co. Newell, W. Va. THiESS, L. E. (WF) Insulator Dept., General Electric Co. Baltimore 30, Md. THOMAS, Charles A. G. E. J. &: J. Pearson, Ltd., Firebrick Works, Stourbridge, England THOMAS, Charles W. (Honorary) Clifton House, Old Swinford Stourbridge, England (E. ]. &: J. Pearson, Ltd., Firebrick Works) THOMAS, David W. (WI) Tycer Pottery, Inc. Armstrong St., Roseville, Ohio THOMAS, Everett A. (R) 2703 Shaffer Ave., Cincinnati 11, Ohio (Chas. Taylor Sons Co.) THOMAS, George L. (G) 11 Ideal Ave., RR 1. Cheswick, Pa. (Pittsburgh Plate Glass Co.) THOMAS, H. H. (M) 35 Highboy Court, Red Bank, N. ]. (Pemco Corp.) ROSTER 10i r I THOMAS, Richard V. Ellendale Rd., Chagrin Falls, Ohio THOMAS, Robert H. (B) 238 Arlington Rd., Newton Falls, Ohio (Falls Welding & Mfg. Co.) fHOMASOK, James F. (I) Roosevelt Rd., Kohler, Wise. r SON, A. Paul (RF) arch Laboratories Eagle-Picher Co., Joplin, Mo. THOMPSON, Charles W. (R) 216 Dell St., Johnstown, Pa. (Bethlehem Steel Co.) rHOMPSOX, Cl)'de L. (RFI) 4922 New Plymouth Rd. Pittsburgh 27, Pa. (Harbison-Walker Refractories Co.) fHOMPSOK, Franklin S. (W) 25 Schenck Ave., Matawan, N. J. (Atlantic Tile Mfg. Co.) THOMPSON, Frederick S. (GF) Corhart Refractories Co., Inc. 1600 W. Lee St., Louisville 10, Ky. THOMPSON, G. L. Borax & Chemicals, Ltd. 229 High Holborn London, W. C. 1, England ~HOMPSOK, John D. (E) 2434 Evergreen Dr., Royal Oak, Mich. (Briggs Mfg. Co.) THOMPSON, Matthew S. (G) Puerto Rico Glass Corp., Box 4272 San Juan, Puerto Rico THOMPSOK, Noel M. (R) 721 Shady Lane, Pittsburgh 34, Pa. (Lumnite Di,. Universal Atlas Cement Co.) THOMPSON, Thomas E. (E) Box 252, Williams Ba).. Wise. (Thomas C. Thompson Co.) THOMPSON, Lt. William M., Jr. (BJI) WADC, Area B, Box 8308 ~.ght-patterson AFB, T ON, Homer G. (R) 1 W. Howard St. waukee 14, \\'isc. Dayton, Ohio (Allen Bradley Co.) THOMSON, James K. (W) 2 McMaster Pl., Bath, N. Y. (Westinghouse Electric Corp.) THOR, Mumer E. (RI) 318 Parkhurst Blvd., Buffalo 23, N. Y. (Norton Co.) THORKE, James E. (WJ) Case Manufacturing Corp. Robinson, Ill. rHORXGATE, Bruce W. (W) Royal Tile Manufacturing Co. Sylvania Sta., Box 7292 Fort Worth 11, Texas THORNTON, George A. (M) Ottawa Silica Co., Box 437 Ottawa, II\. THORNTOK, Paul E. (WI) 1708 La Taza Dr., La Canada, Calif. (Ferro Corp.) THRASHER, William R. (D) Model Ceramics, Inc. 772 N. Main, Akron 10, Ohio 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.) THUKHORST, Helen M. 2313 Saratoga Ave., Cleveland, Ohio THURSAUER, Hans (BFI) tf,nnesota Mining & Mfg. Co. tral Research, Inorganic Section son Rd. & East Ave. l Paul 6, Minn. THUT, Walter W. A. G. Hunziker & Cie, Lagerstrasse 1 Zurich, Switzerland VOL. 35, No. 10 (1956) TIBBALS, Harvey L. (MI) 542 Santa Barbara Rd. ,Berkeley 7, Cali f. (Minneapolis-Honeywell Regulator Co.) TICE, Henry B., Jr. (W) Zenith Radio Corp. 1500 X. Kostner Ave. Chicago 51, Ill. 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 TIERKO~, Carlos H. (MJ) . 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. TILLOTSON, Clifford (R) Tillotson Refractories Co. Box 398, Corona, Calif. TILLOTSOK, E. Ward (GF) 505 S. Murtland Ave., Pittsburgh 8, Pa. (Mellon Institute) TIMBERLAKE, John J. (G) Forter- Teichmann Co. 1212 Clark Bldg., Pittshurgh 22, Pa. TINKER, Dean (M) Granville, Ohio (Ohio Kilns, Inc.) TINKLEPAVGH, J. R. (RT) State University of New York College of Ceramics at Alfred Uni\'. Alfred, N. Y. TITANIUM ALLOY MFG. DIV., NATIONAL LEAD CO. (W. J. Baldwin) Box C, Bridge Station Niagara Falls, N. Y. TITVS, Henry B. (R) North American Refractories Co. 50 Church St., New York 7, N. Y. TOBERG, John (E) Shepherd Chemical Co. 2803 Highland Ave. Cincinnati 12. Ohio TOBEY, Henry M. (5) Dow Chemical Co., Midland, Mich. TOCKER, Edwin 3917 Pinkney Rd., Baltimore IS, Md. TODD, Henry (W) Dee Lane, Queenston, Ont., Canada (Canadian Ohio Brass Co.) TOEPFER, George (W) Canadian Potteries Ltd. 360 Blvd. Seminaire St. Johns, Que., Canada TOLER, Herbert R. (E) R. R. 2, Box 544, West Chicago, Ill. (Indiana Steel Prod. Co.) TOLLY, Donald B. (EJ) 122 Hudson Ln., Fern Creek, Ky. (General Electric Co.) TOM, Elgin M. (G) 4208 MarJaine Dr., Toledo 6, Ohio (Kimble Glass Co.) TOMASEK, A. J. (R) Walsh Refractories Corp. 101 Ferry St., St. Louis 7, Mo. TOMKINS, David E. (M) R. R. 5, Eastbrook Rd., New Castle, Pa. (Shenango China, Inc.) TOOL, Arthur Q. (GF) 7325 Carroll Ave. Takoma Park 12, Md. TOOLEY, F. V. (GF) 611 W. Oregon, Urbana, Ill. (University of Illinois) TOOMEY, James E. (R) Kaiser Aluminum 6: Chemical Corp. 1625 E)'e St., N. W., Room 915 Washington 6, D. C. TOprING, Juhn (R) United States Steel Corp. 525 William Penn P\. Pittsburgh 30, Pa. TORGAL, K. G. 1/108, Mannarpuram Tiruchirapalli, S. India (Jamal Mohamed College) TORNO, Ralph F. (E) 410 Front St., Berea, Ohio (McGean Chemical Co.) TOROK, Julius J. (G) 3344 Gallatin Rd., Toledo 6, Ohio (Owens-Illinois) TOSTEVIN, Edgar R., Jr. (WI) 20H Westfield Terr., Bethlehem, Pa. (Western Electric Co.) TOVLOCSE, Julian H. (GFI) 1817 Potomac Dr., Toledo 7, Ohio (Owens-Illinois) TOWXSEKD, William O. (WI) 2763 Kottingham Rd. Columbus 21, Ohio (Battelle Memorial Institute) TRABERT, Loren A. (WI) 610 Maple St., Red Wing, Minn. (Red Wing Potteries, Inc.) TRAVIS, Betty A. (D) 124 W. 13th St., ~ew York 11, N. Y. TREDEXNICK, William T. (Rl) 514 Brookfield Rd. Drexel Hill, Pa. (P_efractory Specialties Co.) TREFFNER, Walter S. (R) 440 W. Maple Rd. Linthicum Heights, Md. (General Refractories Co.) TREISCHEL, C. C. (WFl) R. T. Vanderbilt Co., 230 Park Ave. New York 17, N. 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 Nr. Burton-on-Trent, England (John Knowles & Co.. Ltd.) TRIBE, Harold G. Electricity Meter & Allied Ind., Ltd. Box 4, Waterloo, Sydney, Australia TRINIDAD CLAY PRODUCTS, LTD. (Harold A. Eckel) 44, South Quay Port of Spain, Trinidad, B. W. I. TRIKKLEIK, Robert L. (W) 1551 Jackson Hw)., Florence, Ala. (Stylon Southern Corp.) TRIPP, Harlan P. (EI) 3605 Winchester Rd., Louisville 7, Ky. (General Electric Co.) TROMPETER, Bernard J. (M) Champion Spark Plug Co. 8525 Butler Ave., Detroit 11, Mich. TROST, Frank W. (R) Chas. Taylor Sons Co. 5 Haddon Ave., Haddonfield, N. J. TROSTEL, L. J. (RFl) General Refractories Co., Box 1673 Baltimore 3, Md. TROSTEL, Louis J., Jr. (RI) Norton Co., I New Bond St. Worcester 6, Mass. TROY, H. Keal (Rl) Owens-Illinois 1700 N. Westwood Ave., Toledo 7, Ohio TROY, Walter J. (E) 888 Chili Ave., Rochester, N. Y. (Pfaudler Co.) TRUESDALE, Richard S. (I) Box 275, Alfred, N. Y. TRVMPLER, Alfred L. (M) Harper Electric Furnace Corp. 39 River St., Buffalo 2, N. Y. ROSTER 109 'SE, Shou-cheng (\n) 138 Main St., Apt. J-B Fairhaven, Mass. (Aerovox Corp.) 'St:KADA, Kenichi Box 267, Alfred, N. Y. ' U I ' Donald ]. (MI) Winthrop Rd. ingdon Valley, Pa. recision Grinding Wheel Co.) 'UCKER, Edward F. (R) SteblJins Engineering & Mfg. Co. 363 Eastern Blvd., Watertown, N. Y. ~UCKER, Harvey C. (WI) Ferro Corp., 4150 E. 56th St. Cleveland 5, Ohio 'UCKER, Roland E. (WI) Trenton Potteries Co. 309 N. Clinton Ave., Trenton, N. ]. 'UNG, Chi Fang (E) 1958 Nokomis Ave., St. Paul 6, Minn. (Minnesota Mining & Mfg. Co.) 'eRBETT, Paul E. (M!) R. R. 1, Dresden Hwy., Paris, Tenn. (H. C. Spinks Clay Co., Inc.) 'URCK, Ra)'mond L. (M) 48 Short St., Tiffin, Ohio (Sterling Grinding Wheel Co.) 'URISSINI, Robert (GJ) Corning Glass Works, Fallbrook Plant Corning, N. Y. ruRK, Richard H. (EF!) Pemco Corp., 5601 Eastern Ave. Baltimore 24, Md. rURLEY, Charles L. (G) B. F. Drakenfeld & Co., Inc. Box 519, Washington, Pa. rURNBAUGH, Jerry E. 5310 33rd Ave. S., Seattle 8, Wash. rURNBULL, Edward D. (W) 500 Penn Ave., Scranton 3, Pa. (Euston Lead Co., Div. Glidden Co.) rURNBULL, John C. (G) Radio Corp. of America -Victor Div., Lancaster, Pa. r , A. A. (R) ke Ave., Metuchen, N. J. arborundum Co.) fURNER, Donald Messrs. Lodge Plugs, Ltd. Rugby, England ruRNER, Mort D. (B) Calle 12 de Octubre 414 Hato Rey, Puerto Rico rURKER, P. P., Jr. (RI) 46 Imbler Dr., Cincinnati 18, Ohio (General Electric Co.) rtJRKER, Robert C. (SI) One Jefferson Ave. Rockville Centre, N. Y. (Structural Clay Products Institute) TURNER, W. E. S. (Honorary) 30 Whitworth Rd., Ranmoor Sheffield to, England TUTTLE, George N. (E) Benjamin Electric Mfg. Co. See!ers Rd. & N. W. Highway Des Plaines, Ill. TUTTLE, Milton A. (R) Box 981, Alfred, :1\. Y. (State University of New York, College of Ceramics) . TWELLS, Robert (WFI) Electric Auto-Lite Co., Spark Plug Div., Box 231 Fostoria, Ohio TWELLS, Robert G. (GI) 528 Isabella Ave., Lock 4, Pa. (Coming Glass Works) TWYFORDS, LTD. Cliffe Vale Potteries e-on-Trent, England T VALLEY GLASS CO. A. Hinkins) Box 503 . &shinglon, Pa. TYLER, W. S., CO. (C. E. Jenks) 3615 Superior Ave., N. E. Cleveland 14, Ohio VOL. 35, No. 10 (1956) TYRRELL, Miles E. (R) Box 412, Norris, Tenn. (t:. S. Bureau of Mines) TYS'I:-\GER, Ted W. (S) R. R. 2, Thomasville, N. C. (Cunningham Brick .co.) U l:ELTZ, H. F. G. (B) 39 West St., Worcester, Mass. (Norton Co.) UHRMAX:-\, Carl J..(GF) Overlook Ct., Bellaire, Ohio (Arthur W. Schmid Co., Inc.) ULEMAN, Turrell (G) 109 Virginia Ave., Aspinwall, Pa. (Pittsburgh Plate Glass Co.) VLRICH, Robert J. (E) American Radiator & Standard Sanitary Corp. 1541 S. Seventh St., Louisville 8, Ky. UNION FRANCAISE DES PRODUITS REFRACTAIRES (Louise Halm) IS, Rue de Milan, Paris ge, France UNITED CLAY MINES CORP. (K. E. \\'ard) 101 Oakland St. Trenton 6, X. J. UNITED STATES GYPSUM CO. (Robert Hamilton) 300 W. Adams St. Chicago 6. Ill. UNITED STATES STEEL CORP. (W. S. Debenham) 525 William Penn PI. Pittsburgh 30, Pa. UNIVERSAL CLAY PRODUCTS CO. (c. A. Bloor) Sandusky, Ohio UNIVERSAL DENTAL CO. (Joseph Kohn) 48th & Brown Sts. Philadelphia 39, Pa. UNIVERSAL POTTERIES, INC. (Harry E. Davis) Cambridge, Ohio UNIVERSAL-RUNDLE CORP. (A. L. Johnson) W. Keith McAfee Lab. Box 1268, Mahoninglown, Pa. UNIVERSAL-RUNDLE CORP. (H. P. Wangelin) 3305 W. Forest Home Ave. Milwaukee 15, Wise. UNUM, Robert F. (WI) 811 Wilmington Ave., New Castle, Pa. (Universal-Rundle Corp.) t;RBAN, Stephen F. (B) 268 Hartford Ave., Kenmore 23, N. Y. (Titanium Alloy Div., National Lead Co.) UTAH FIRE CLAY CO. (C. H. Myers) Box 127, 5alt Lake City 10, Utah L.:TZ, Donald (R) . Kearfott Co., Inc. 142 Getty Ave., Clifton, N. J. v VAIL, Milford R. 4014 Spruce St., Philadelphia 4, Pa. VALDES, Thomas H. (W) 431 Adeline St. Trenton, N. J. (Trenton Potteries Co.) VALENTINE FIRE BRICK CO. DIV. A. P. GREEN FIRE BRICK CO. (W. H. Peterson, Jr.) Woodbridge, K. J. VALENTINE, Peter Cooney (M) Del Monte Properties Co. 620 Market St., San Francisco 4, Calif. YALYI, Ilsabe E. (B) 20 S. Broadway, Yonkers 1, N. Y. (A. R. D. Corp.) YAN AKEN, Robert C. (W) Sperry Gyroscope Co. Div. Sperf)'-Rand Corp., IP39 Great Neck, N. Y. VAN ALSTEN, Roy L. (RI) 9168 Sarasota, Detroit 39, Mich. (Ford Motor Co.) VA:-\CE, Clarence E. 165 ~1ilk)' Way, Clemson, S. C. VAN CLEAVE, A. A. (R) 8100 McGroarty St., Sunland, Calif. VAK COTT, Harrison C. (B) R.R. I, Horseheads, N. Y. (Corning Glass Works) VAN DER BECK, Roland (BI) Research & Development Carborundum Co., Niagara Falls, N. Y. VANDERBILT, R. T., CO. (Ira E. Sproat) 230 Park Ave. New York 17, N. Y. VANDERMADE, Richard J. (R) 489 Willow Dr.. Pittsburgh 16, Pa. (Carborundum Co ..l VAN DRESER. Merton L. (G) Owens-Corning Fiberglas Corp. Box 326, Kansas Cit). Kans. VAN DYKE, Orien W. (B) Magnet Cove Barium Corp. Box 6504, Houston 5, Texas \' AK GELDEREN, L. P. N. V. Ramie t nion, Enschede, Holland VAK GORDOX, Donald V. (M) Metal & Thermit Corp. Box 471, Rahway. K. J. VAX HORX, Harry T. (M) 741 Floral Park Rd. Franklin Square, :-\. Y. (Sacon)' Mobil Oil Co., Inc.) VAK HOCTE~, Louis A. Fabricacion Des Abrasivos S. A. Ave. Julio A. Roca 610 Buenos Aires, Argentina VAKICK, James S. (M) International Nickel Co., Inc. 67 Wall St.. Xew York 5. X. Y. VANNI, Ralph J. 1713 \\'arren Ave., Seattle 9, Wash. VAK NIECWENBURG, C. J. Laboratorium voor Analytische Scheikunde (Microanalyse) de Vries van He)'stplein 2 Delft, Ketherlands VAN SCHOICK, Emily C. (XF) State University of New York College of Ceramics, at Alfred Univ. Alfred, K. Y. VAN SCHOIK, 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, Wisc. (Kohler Co.) VAN VLACK, Lawrence H. (BI) Dept. of Chem. & Metal. Engineering University of Michigan Ann Arbor, Mich. VAN WASSENHOVE, Pierre N. V. "De Sphinx" Maastricht, Holland VAK WIGGEREK, Charles G. (WI) Simonds Abrasive Co. Tacony & Fraley Sts. Philadelphia 37, Pa. VAN ZEE, Arthur F. (G) 3430 Inverness Ave., Toledo 7, Ohio (Owens-Illinois) VARSHXEI, Purshottam D. r. P. Glass Works Ltd. Bahjoi, Dt. Moradabad, U. P. India VASILOS, Thomas (B) 424 W. Fourth St., Elmira, N. Y. (Corning Glass Works) VAUGHAN, T. Carter (SI) 1522 Bedford Rd.. Charleston, W. Va. (West Virginia Brick Co.) VAUGHAN, W. Harry (XFI) Cherokee Brick & Tile Co., Box 58 Waterville Rd., Macon, Ga. VEALE, Jack H. (R) 406 Reedwood Dr., Joliet, II\. (Illinois Clay Products Co.) VEl GA, Roberto A. Ceramica Santa Helena Ltda. Rua 15 De Novembro 38 Paranagua, Parana, Brazil ROSTER 111 r ~.. I t, VENABLE, Charles R., Jr. (RI) 1660 S. Oak, Bartlesville, Okla. (Phillips Petroleam Co.) VENABLE, Joe G. (G) Chattanooia Glass Co. Chattanooga 10, Tenn. V . ' Richard J. (M) weitzer Equipment Co. 4 Ridge Rd., Cleveland 9, Ohio VE VIUS CRUCIBLE CO. (Francis L. Arensberg) Box 8275 Swissvale, Pittsburgh 18, Pa. yICKERS, A. Eric ]. "Wynnstay". Millfield Rd. Whickham NewcastleuponTyne, England (Thermal Syndicate Ltd.) VICTOR INSULATORS DIV., I-T-E CIRCUIT BREAKER CO. (H. Failmezger) Maple Ave. Victor, N. Y. VIDANOFF. Richard B. (GJ) 902 Seventh Ave., Ford City, Pa. (General Electric Co.) VIDPLAN S. A. (Daniel Ferres) Real No. 4415, Montevideo, l'ruguay VIDRIERA MONTERREY, S. A. (hlfonso F. Rodriguez) Apartado 162, Monterrey N. L., Mexico VIGER, Burnett C. (G) 130 E. Third St., Corning, N. Y. (Cornine Glass Works) VILENSKY, Michel B. (R) 1515"27th Ave., San Francisco 22, Calif. (Ampex Corp.) VINAL, Francis E. (B) Radio Corp. of America 64 "A" St., Needham Heights 94, Mass. VINCENT CLAY PRODUCTS CO. (0. J. Whittemore) 615-19 State Bank Bldg. Fort Dodge, Iowa VINCENT, George L. (WI) R. R. 2, Box 79, Robinson, Ill. l Ise Manufacturing Corp.) ER, E. Heikel rcelainfabriken Norden alby Langgade 95 Copenhagen, Denmark VISCONTI di MODRONE, Raimondo Soc. Ceramica Richard Ginori 1 via Bigli, Milan, Italy VITOLO, Sylvester A. (RI) Gen. Del., Long Valley, N. ]. (Austenal, Inc.) VITREOUS STEEL PRODUCTS CO. (Edgar H. Weil) Box 3991 Cleveland 20, Ohio VITRO MANUFACTURING CO. (Joseph Boyce) 60 Greenway Dr. Pittsburgh 4. Pa. VODICKA, Albert L. (E) Aetna Porcelain Enameling Co. 4701 Augusta Blvd., Chicago 51, Ill. VOGEL, Ralph B. (M) National Lime & Stone Co., Carey, Ohio VON TURY, Francis ]. (DF) Lehigh Ave., Perth Amboy, N. ]. (Vontury, Jnc.) 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., Corning. N. Y. (Coming Glass Works) VOSS, Wendell G. (E) 27814 Rexford Rd., Bay Village, Ohio (Ferro Corp.) 11 S. Epaminondas titute of Chemistry & Agriculture . Canellopoulos" of the Hellenic Co. iraeus, Drapetsona, Greece VUKOVICH, Milan, Jr. (M!) 9 Dix Rd., Woburn, Mass. (Godfrey L. Cabot, Inc.) VOL. 35. No. 10 (1956) w WACHTMAN, John B. Jr. (B) , National Bureau of Standards, Div. 9.1 Conn. Ave. & Van Ness St., N. W. Washington 25, D.-C. WAGGONER, Jack H. (GF) 240 Quentin Rd., N. Newark, Ohio (Fiber Glass Div., Pittsburgh Plate Glass Co.) WAGNER, Bruce F. (W) 186 N. Vernon Ave., Pasadena 3, Calif. (B. F. Wagner'& Co.) WAGNER, Harold C. (R) 968 Yellowstone Rd. Cleveland Heights 21, Ohio (Zirconium Corp. of America) WAG!\ER. Rio B. (D) 1398 Brice Rd., Reynoldsburg, Ohio (Perma Flex Mol4 Co.) WAHL, Albert J. (W) A. J. Wahl, Inc. 8 Central Ave. Brocton, N. Y. WAHLGREN. Wald A. B. Gustavsbergs Fabriker Gustavsberg, Sweden WAINER, Eugene (W) Horizons, Inc., 2905 E. 79th St. Cleveland 4, Ohio WAITE, Virgil H. (E) 433 Beech St., Berea, Ohio (McGean Chemical Co.) WAIVER, Gedert J. (W) 909 87th St., North Bergen, K J. (B. G. Corp.) WAKEFIELD, Richard E. B. (B) Hetherington, Inc., 1200 Elmwood Ave. Sharon Hill, Pa. WAKELY, Wilbur T. (GJ) Sylvania Electric Products, Inc. 825 Lexington, Warren, Pa. WALDAL, James C. 2425 Second Ave. W. Seattle 99, Wash. WALDEN, Albert S. (R) National Carbon Co., Cleveland. Ohio WALDHAUER, William O. Savannah Terrace Apts., Apt. 25-C North Augusta, S. C. WALKER, Eugene E. (W) 220 W. Sheridan Ave., New Castle, Pa. (Universal-Rundle Corp.) WALKER, Henry E. (G) Harding Glass Co., Sta. B, Box 38 Fort Smith, Ark. WALKER. Herbert M. (W) Walker China Co., Solon Rd. Bedford, Ohio WALKER. John Morgan Crucible Co., Ltd. Battersea Church Rd. London, S. W. 11, England WALKER, Warren W. (B) 29 Laurel Pl.. Upper Montclair, N. ]. (Graphite Metallizing Corp.) WALKUP, D. H. (W) Kilgore Ceramics Corp., Box 1619 Kilgore, Texas WALLA, Max R. (W) Box 1369, Little Rock, Ark. (Winburn Tile Mfg. Co.) W ALL.O\CE, Arthur B. (W) 410-B E. State St., Olean, N. Y. (Precision Ceramics, Inc.) WALLACE, Paul F. (B) Aluminum Co. of America Alcoa Research Labs., Box 772 New Kensington, Pa. WALSH, Donald E. (G) Consolidated Feldspar Dept., International Minerals & Chemical Corp. East Liverpool, Ohio WALSH REFRACTORIES CORP. (A. ]. Tomasek) 101 Ferry St. St. Louis 7, Mo. WALTER, Jake J. 131 Stanton Ave., Ames, Iowa WALTON, Jesse D., Jr. (E) 3304 Fairway Rd., N. E. Atlanta 19, Ga. (Engineering Experiment Station Georgia Institute of Technology) WALWORTH, Chester A. tG) Libbey-Owens-Ford Glass Co. Box 4278. Charleston 4, W. Va. WAMBOLD, Jack tB) Kennametal, Inc. Lloyd Ave., Latrobe, Pa. WAMPLER, Roy W. (G) Libbey-Owens-Ford Glass Co. Technical Bldg., 1701 E. Broadway Toledo 5, Ohio WANG, Chanhuan Tektronix, Inc. Box 831, Portland i, Ore. WAKG, Franklin F. Y. Glascote Products, Inc. 20900 St. Clair, Cleveland 17. Ohio WANGELIN, H. P. (E) Universal-Rundle Corp. 3305 W. Forest Home Ave. Milwaukee IS, Wise. WARD, George V. (R) McLain Fire Brick Co., Di\'. of H. K. Porter Co., Inc. Wellsville, Ohio WARD, George W. (G) Gustin-Bacon Mfg. Co. 210 W. Tenth St., Kansas City, Mo. WARD, John B. (X) Corning Glass Works, Corning, N. Y. WARD, John F. (W) 551 Chester PI., University Heights New Brunswick, N. J. (Rutgers University) WARD, K. E. (M) United Clay Mines Corp. 101 Oakland St., Trenton 6, N. ]. WARD, Mrs. S. Paul (M) 601 Mission St., South Pasadena, Calif. (S. Paul Ward, Inc.) WARD, Thomas ]. Box 3, Ogdensburg, K. Y. WARDE, John M. (R) Union Carbide Ore Co. Carbide & Carbon Bldg. 30 E. 42nd St., New York 17, N. Y. WARE, 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.) WARRELL, Lincoln A. (R) Aluminum Co. of America 230 Park Ave, New York 17, N. Y. WARREN, George (El) Pfaudler Co., Research Laboratory 1000 West Ave., Rochester 3, N. Y. WARREN, William R. 153 Hillside, Clemson, S. C. WARSHAW. Israel (B) Glass Research Div. Pittsburgh Plate Glass Co. Creighton, Pa. WARSHAW, Stanley 1. Georgia Tech., Box 4873, Atlanta, Ga. WARYGA, Casimer F. (R) 863 Colv.'Yn Rd., Jenkintown, Pa. (Frank Samuel & Co., Inc.) WASHABAUGH, Grover C., Jr. (M) New Castle Refractories Co. New Castle, Pa. WASHINGTON BRICK CO. Muirkirk, Md. WASHINGTON BRICK & LIME CO. (Walter Senters) Box 2198 Spokane, Wash. WASHINGTON PORCELAIN CO. (E. R. Miller) Willow St. Washington, N. J. WASMANN, Russell K. (R) Gladding, McBean & Co. 1275 Harrison, San Francisco, Calif. ROSTER 113 r IL-\ T ERS, Martin R. (WI) 22 Red Rose Way, Levittown, Pa. (Wenczel Tile Co.) ,\'ATKIN, Robert W. (W) 2507 St. Clair Ave. East Li\'erpool, Ohio win 111. Knowles China Co.) i\' ~S, E. Charles (WJI) el Rd., R.R. 3, Zanesville, Ohio . osaic Tile Co.) WATKIKS, George B. (G) Libbey-O\\ens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio WATKI!\S, Ray T. (S) V. S. Tariff Commission, Ceramic Div. Eighth & E Sts., K. W. Washington 25, D. C. ,rATKl"S, Ens. Robert V. (1) BOQ 674, Room 275 ~AS Pensacola, Fla. I\'ATKl:\S, Wi:Jiam E. (MI) 6363 Alderwood Rd., Cleveland 30, Ohio (Ferro Corp.) AATKI~S, \Y. J. (M) Kentl1cky Clay Mining Co. Mayfield, Ky. \\'ATSOS, George F. (R) American Brake Shoe Co. Metallurgical Lab., Mahwah, N. J. NATSOK, James F. Tabor, Iowa WATT, Charles 1527 Piikoi St., Honolulu, Hawaii WATT, Loren (W) VI'att Pottery Co. Crooksville, Ohio WATT POTTERY CO, (Loren Watt) Crooksville, Ohio WATTS, Arthur P. (R) A C Spark Plug Div., General Motors Corp., Dept. 3103 Flint, Mich. WATTS. Arthur S. (Honorary, WFI) Lord Hall, Ohio State University mbus 10, Ohio N E, Harold E. . Del., Alfred, K. Y. NAUGH, J. Stanley Mass. Inst. of Tech., Bldg. 20 Rm. 20-C-00I, Cambridge 39, Mass. WAXLER, Roy M. (G) National Bureau of Standards Conn. Ave. & Van Ness St., N. W. Washington 25, D. C. WEATOl\, Ral,h L. (G) St. Joseph Lead Co. Zinc Smelting Div., Monaca, Pa. WEAVER, Don S. Box 787, Alfred, N. Y. WEAVER, F. L. (R) Weaver Materiel Service, Gokey Bldg. Jamestown, N. Y. WEAVER, Harold L. (G) 303 Chestnut St., Port Allegany, Pa. (Pittsburgh Coming Corp.) ,\'EAVER, R. A. (EF) Ferro Corp., 4150 E. 56th St. Cleveland 5, Ohio NEBBER, John J. (R) 1210 Elco Dr., Maumee, Ohio (HarbisonWalker Refractories Co.) NEBBERT, James C. 1351 E. 17th S., Salt Lake Cit), Utah WEBER, Arthur W. (G) Coming Glass Works Coming, N. Y. WEBER, Berthold C. (B) 3833 Saranac Dr., Dayton 9, Ohio (Aeronautical Research Laboratory) WEBER, Don A. (5) ister Concentrator Co. w41Glasgow Ave., Fort Wayne, Ind. . , Kenneth E. (M) 4 Thayer St., Evanston, Ill. (0. Hommel Co.) NEBER, Thomas W. 454 West Ave., Sewaren, N. ]. VOL. 35, No. 10 (I 956) WEBSTER, Charles E. (RI) 311 E. Beaver St., Zelienople, Pa. , (Lava-Crucible-Refractories Co.) WEBSTER, David (S) Polycnemicals Div. West Virginia Pultl & Paper Co. Box 832. Charleston, S. C. WEDDELL, George G. (M) 125 Beverly Rd., Pittsburgh 16, Pa. (Westinghouse Atomic Power Div.) WEEDY, Robert C. (R) Harbison-Walker Refractories Co. Box 957, Windham, Ohio WEEKS, Ben W. (M) Allied Trading Corp. 807 Commercial Bldg., Raleigh, N. C. WEHTJE, Ernst J. Box 269, Malmo 1, Sweden (AB Ifoverken & Skanska Cement) \\'EHTJE, Karl Fredrik AlB Rorstrands Porslinsfabriker Lidkoping, Sweden WEIDEL, Robert A. (G) 497 Apple Orchard Lane Webster, K. Y. (Bausch & Lomb Optical Co.) WEIDEKBAUM, Sherman S. (G) 59 W. Second St., Coming, N. Y. (Corning Glass Works) WEIDLICH, Gilbert (M) 640 E. Jefferson, Kirkwood, Mo. (Western Machinery & Engine Co.) WEIDMAN, V. Wesley (R) 201 Duncan Ave., Wilmington 3, Del. (E. I. du Pont de Nemours & Co., Inc.) WEIGEL, Robert C. (R) 820 Woodlawn, Mexico, Mo. (Mexico Refractories Co.) WElL, Edgar H. (E) Vitreous Steel Products Co. Box 3991, Cleveland 20, Ohio WElL, Kurt E. Rua Batatais 472, Sao Paulo, Brazil WEINSTEIN, Alex (G) Ednalite Optical Co., Inc . 200 N. Water St., Peekskill, N. Y. WEINTRITT, Donald J. (M) 5122 Pine St., Bellaire, Texas (Baroid Div., National Lead Co.) WEISE, Robert L. (G) 446 E. Second St., Logan, Ohio (General Electric Co.) WEISEKSEEL, Charles W. Jackson Tile Mfg. Co. Box 2006, Jackson, Miss. WEISS, E. Joseph (BI) Dept. of Ceramic Engineering University of Texas, Austin, Texas WEISS, W. Russell (R) .Wellsville, Mo. (Wellsville Fire Brick Co.) WEISZ, Robert S. (B) International Telemeter Corp. 2245 Pontius Ave. Los Angeles 64, Calif. WELCH, A. Philip (BI) 7018 Glade Ave., Canoga Park, Calif. (Atomics International) WELCH, Archibald (S) Cooks\'ilIe Co., Ltd. 1055 Yonge St., Toronto, Ont., Canada WELCH, James S. American Ceramic Society 4055 N. High St., Columbus 14, Ohio WELCH, John C., Jr. (B) 110 Escalona Ct., Santa Cruz, Calif. (A. P. DeSanno & Son) WELCH, Richard L. (R) Dominion Firebrick & Clay Products (1954) Ltd. Claybank, Sask., Canada WELLER, Haney C. (G) Surface Combustion Corp. 2375 Dorr St., Toledo 1, Ohio WELLING, Charles E. (R) Ford Motor Co., Scientific Lab. Engr. Staff, Box 2053, M B Station Dearborn, Mich. WELLS, A. A. (WF) Homer Laughlin China Co. Newell, VI'. Va. WELLS, J. M. (W) Homer Laughlin China Co. Newell, W. Va. WELLS, Ralph G. (B) University of Michigan E. Engineering Bldg., Rm. 4201 Ann Arbor, Mich. WELSHA!\S, L. T. (R) Diamond Alkali Co., Cement-Coke Div. 300 union Commerce Bldg. Cleveland 14, Ohio WELTE, Ralph J. (S) Summit Pressed Brick & Tile Co. Box 533, Pueblo, Colo. WELTERLEN, James D. (RJ) 4630 Zane St., Los Angeles 32, Calif. (Gladding, McBean & Co.) WENCZEL, C. (w) Wenczel Tile Co., Box 908 Trenton, !\. J. WENCZEL TILE CO. (c. WenczeJ) Box 908, Trenton, K. J. WE!\DT, Selsen E. (M) American Potash & Chemical Corp. 595 Foch Blvd., Williston Park, K. Y. WENGER, James A. L. Messrs. VI'engers Ltd., Etruria Stoke-on-Trent, Stafford, England WENKING, W. F. (E) Ceramic Color & Chemical Mfg. Co. Box 297, Kew Brighton, Pa. WEKTZ, B. B. (S) Belden Brick Co. 700 VI'. Tuscarawas St., Canton 1, Ohio WERKEMA, Thomas E. (S) Dow Chemical Co., Midland, Mich WERNER, Alan J. (G) 159 Watauga Ave., Corning, N. Y. (Coming Glass Works) WEST, Frank Haslemere Greenlane Buxton, Derby, England (Derbyshire Silica Fire Brick Co.) WEST, Howard F. (R) Illinois Clay Products Co. 68 !\. Chicago St., Joliet, Ill. WEST, Richard R. (B) Box 493, Alfred, N. Y. (State University of New York, College of Ce~amics) WESTBROOK, J. H. (B) General Electric Co., Rm. 3124 Research Laboratory, The Knolls Schenectady, N. Y. WESTERN BRICK CO. (1. R. Cline) Danville, Ill. WESTERN ELECTRIC CO" INC. (J. W. Scott) 7650 Hawthorne Station Chicago 23, Ill. WESTERN ELECTRIC CO" INC. (W. J. Scott) 2525 Shadeland Ave. Indianapolis 6, Ind. WESTERN FELDSPAR MILLING CO. (V. E. Magnuson) Box 671 Salida, Colo. WESTINGHOUSE ELECTRIC CORP. (John D. Hamish, Jr.) Derry, Pa. WESTLAKE, C. Rogers (WI) 1961 Christmas Run Blvd. Wooster, Ohio (Shreve Manufacturing Co.) WESTMAN, A. E. R. (GF) Dept. of Chemistry Ontario Research Foundation 43 Queen's Park Crescent Toronto S, Ont., Canada WESTMONT, O. B. (R) Johns-Manville Products Corp. Lompoc, Calif. WESTON, Ralph H. (SI) Arketex Ceramic Corp., Brazil, Ind. WEST VIRGINIA BRICK CO, (Claude F. Wiseman) Box 1071 Charleston, W. Va. ROSTER 115 , WEYL, Woldemar A. (GF) Div. of Mineral Technology Pennsylvania State Universit) University Park, Pa. WHALEN, Thomas J. 'lltOP Park, Box 5, State College, Pa. \ O~, William P., Jr. (M) r Div., Carborundum Co. 2 VI'. Beverly Dr., Dallas, Texa~ WHEELER, D. D. (W) Titanium Allo)' Mfg. Div. Kational Lead Co. 111 Broadway, ~ew York 6, K. Y. WHEELER, William H. (RI) Martin Aircraft Co., Engr. Lab. Martin Mail 366, Baltimore 3, !lid. WHEELING STEEL CORP. (Ernest B. Snyder) Steubenville South Plant Steubem'ille, Ohio WHELAN, Paul T. (R) 11 Florence Terr., \\'atertown 72. !IIass. (VI'atertown Aresena!) 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. WHITAKER, Fred A. (WI) 451 Oak Ridge Rd., Clark, ~. J. (General Ceramics Corp.) WHITAKER, H. Rustless Iron Co. Ltd., Lawkholme Ln. Keighle)', Yorks, England WHITAKER, L. R. (SFI) Carolina Ceramics, Inc., R. R. 3 Columbia, S. C. ' Frank L. (G) 47 Manor, Detroit 4, Mich. ord Motor Co.) WHITE, George D. (B) 225 E. Drive, Oakridge, Tenn. (Carbide & Carbon Chemical Co.) WHITE, Harold E. (RFI) R. R. 6, "VI'indy Knoll," Butler, Pa. (Lava Crucible-Refractories Co.) WHITE, J. F. (B) . 2016 Arrowood Dr., Cincinnati 31, Ohio (General Electric Co.) WHITE, Jonathan S. (W) 1302 Singer PI. Wilkinsburg, Pittsburgh 21, Pa. (Stupakoff Div., Carborundum Co.) WHITE, O'Mara (G) 642 Fairmont A'e., Westfield, N. J. (Carborundum Co.) WHITEHEAD, Leland E. Box 6122, Virginia Tech. Sta. Blacksburg, Va. WHITEHEAD. Merlin H. (E) Columbian Enameling & Stamping Co. Terre Haute, Ind. WHITESELL, Lysle E. (R) Wellsville, Mo. (Wellsville Fire Brick Co.) WHITFIELD, Robert E. (R) Chas. Taylor Sons Co., Box 58 Annex Station. Cincinnati 14. Ohio WHITFORD, Robert F. (R) North American Refractories Co. Ashland, K). WHITFORD, William G. (DF) Box 38, Olympia Fields, Ill. (University of Chicago) WHIT1\EY, Earl J. W. Fifth St., Corning, 1\. Y. 'EY, Eugene H. (R) adding, McBean & Co., Box 3 J52 Seattle 14, Wash. WHITNEY, John B. (E) 317 N. Bonner Ave., St. Matthews, Ky. (General Electric Co.) VOL. 35, No. 10 (1956) WHITSON, Ralph E. (W) Aluminum Co. of America , Box 300, Bauxite, Ark. WHITSON, Richard E., Jr. (G) Dominion Minerals,,- !,ine)' River, Va. WHITTAKER, Clyde M. (W) Box 960, New Castle, Pa. (UniversalRundle Corp.) WHITTAKER, G. Ward (W) Union Meeting Rd., Gen. Del. Bluebell, Montgomery County, Pa. (Universal-Rundle Corp.) WHITTEMORE, J.' W. (SFI) Virginia Polytechnic Institute Blacksburg, Virginia WHITTEMORE, O. J. (S) Vincent Clay Products Co. 615-19 State Bank Bldg. Fort Dodge, Iowa WHITTEMORE, O. J.., Jr. (RI) Norton Co., Worcester 6, Mass. WHITTEMORE, Russell G. (G) Pittsburgh Plate Glass Co. One Gateway Center, Pittsburgh 22, Pa. WHITTLE, F. F. (W) 1158 W. Water St., Elmira, N. Y. (Westinghouse Electric Corp.) WICKE, Warner C. (W) General Electric Co., One River Rd. Schenectady, N. Y. WICKS, John Simison (E) Fairground Rd., R. R. 1 Fern Creek, Ky. (General Electric Co.) WIEGAND, Frank R. (B]) Box 732, Ft. Huachuca, Ariz. (U. S. Army) WIKER, Richard M. (G) 206 Rand Ave., Painted Post, N. Y. (Corning Glass Works) WILA1\SKY, Harold (G) 67 Sterling St., Corning, N. Y. (Corning Glass Works) WILCOX, Herman G. (R) 800 Ross Ave., Pittsburgh 21, Pa. (Harbison-Walker Refractories Co.) WILCOX, James W. (S) Alliance Clay Product Co. Alliance, Ohio WILCOX, Paul D. 59 S. Grant St., Midvale, Utah 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. WILKERSON, Robert L. (W) Crescent Concrete Products Corp. 2933 Dauphine St., New Orleans, La. WILKES, Gordon B. (RF) Box 131, East Orleans, Mass. WILKINS, E. D. Ka'iser Bauxite Co. Spur Tree, Jamaica, B. W. 1. WILKINS, Ian Hugh (W) 325 Old Quarry Rd. Kingston, Ont., Canada (Frontenac Floor & Wall Tile. Ltd.) WILLARD, Henry G. (MJ) General Electric Co. Plainville, Conn. WILLEMS, H. W. V. (G) 1513 Pacific Ave., Brackenridge, Pa. (Pittsburgh Plate Glass Co.) WILLIAMMEE, G. Darby (R) R. R. 6, York, Pa. (J. E. Baker Co.) WILLIAMS, Alan B. (RIJ lOS McCarthy Dr., Augusta, Ga. (Babcock & Wilcox Co.) WILLIAMS, Arthur E. (G) 1214 Eighth St., Moundsville, W. Va. (Fostoria Glass Co.) WILLIAMS, Charles (E) 131 North St., Auburn, N. Y. (U. S. Army) 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. (W) Box 186, Florence, Ala. (Stylon Southern Corp.) WILLIAMS, Harry M. (WI) Insulator Dept., General Electric Co. Charles & Cromwell Sts., Baltimore, 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, Leroy L., Jr. (EI) 3006 Adams Ave., Evansville, Ind. (Whirlpool-Seeger Corp.) WILLIAMS, Lloyd D. (G) Corning Glass Works, Fallbrook Plant Corning, N. Y. WILLIAMS, Robert A., Jr. (W) American Encaustic Tiling Co., Inc. 1000 N. Cannon Ave., Lansdale, Pa. WILLIAMS, Robert B. (W) 1107 Westwood Ave. Chattanooga, Tenn. (American Lava Corp.) WILLIAMS, Robert E. 1800 Crosby Rd., Carrollton, Texas WILLIAMS, Robert M. (RI) 5809 Royal Oak Ave., Baltimore, Md. (General Refractories Co.) WILLIAMS, Walter E. (MI) New Castle Refractories Co. New Castle, Pa. WILLIS, James B. (E) 1355 Crofton Rd., Baltimore 12, Md. (Pemco Corp.) WILLMORE, Tracy A. (R) 1118 W. Illinois St., Urbana, Ill. (University of Illinois) WILLS, Robert E. (R) Box 220, Coal City, Illinois (Illinois Clay Products) WILLSON PRODUCTS, INC. (Thomas A. Willson) Box 622 Reading, Pa. WILLSON, Thomas A. (G) Willson Products, Inc., Box 622 Reading, Pa. WILSON, Bonum S., Jr. Box 1105, Clemson, S. C. WILSON, Calvin S. (G) Libbey Glass Div., Owens-Illinios Ash St. & Wheeling R.R. Toledo 1, Ohio WILSON, Charles L. (5) 217 N. Meridian St., Brazil, Ind. (Am~rican Vitrified Products Co.) WILSON, George (R) 131 Edison Ave., New Castle, Pa. (New Castle Refractories Co.) WILSON, Homer W. (S) Delaware Clay Co. Box 352, Delaware, Ohio WILSON, Hugh H., Jr. (BI) Oemson College, Olin Hall Clemson, S. C. WILSON, Maurice S. (R) Reynolds Dr., R. R. 2, Box 261 Wallingford, Conn. (American Refractories & Crucible Corp.) WILSOl\, Robert Charles (WI) 7~1 Wedgewood Dr., Apt. 3 Columbus 4, Ohio (Ohio State U niversit) Engineering Experiment Station) WILSON, Robert F. (G) Durakool, Inc. 1010 N. Main St., Elkhart, Ind. WILSON, R. T. (5) Ferris Brick Co., Box 188 Ferris, Texas ROSTER 117 , WINBURN, H. L. (S) Box 1369, Little Rock, Ark. (Winburn Tile Mfg. Co.) WINEMILLER, William F. (R) 11 Ardmore Road, Worcester 9, Mass. ~'orton Co.) ER, Beno ramica Winkler ua I de Marco 119, 2 andar Rio de Janeiro, Brazil WINSHIP, Lee C. (G) Sylvania Electric Products, Inc. Emporium, Pa. WINTER, Aniuta Institut d'optique Theorique et Appliquee, 3, BId Pasteur Paris (15) France WIRTH, David G., Jr. 618 E. Daniel St., Champaign, Ill. WISCONSIN PORCELAIN CO. (L. A. Stohl) 120 Lincoln St. Sun Prairie, Wisc. \\'ISE, L. G. (B) E. 1. du Pont de Nemours & Co.. Inc. Chemical Dept., Experimental Sta. Wilmington, Del. WISEMAN, Claude F. (S) West Virginia Brick Co. Box 1071, Charleston, W. Ya. WISHOSKI, I. Stanley (R) 1nd..strial Heating 1400 Union Trust Bldg. Pittsburgh 19, Pa. WISS, J. E. (MFI) 1339 Lincoln Rd., Columbus 12, Ohio (Consultant) WITMER, Frank (G) 612 W. Main St., Woodville, Ohio (Ohio Lime Co.) WITSCHEY, Ray A. (R) A. P. Green Fire Brick Co. Mexico, Mo. ' ITER. Raymond B. ificio Galipan, A-5-C, Av. Miranda Rosal, Caracas, Venezuela Fabrica de Productos Ceramicos) WITUCKI, Robert M. (G) 4 W. Fifth St., Corning. X. Y. (Corning Glass Works) WITZEMAKN, A. W. (W) 220 Allegheny Ave., Kittanning. Pa. (Eljer Co.) WOLCOTT, J. David 35 Washington St., Hornell, K. Y. WOLD, T. (W) Smith & Stone, Ltd. Georgetown. Ont., Canada WOLFEXSPERGER, R. E. (R) Carborundum Co. 2600 Keville Rd., Pittsburgh 25, Pa. WOLKODOFF, Vladimir E. (B) Carborundum Co. Buffalo Ave., Niagara Falls, X. Y. WOMELDORPH, R. C. (G) 13 Taft Ave., Pro\'idence, R. 1. WONGSOREDJO, Rasmadji Balai Penjelidikan Keramik (Ceramic Institute) Djl. Raya Timur 340 Bandung, Indonesia WOOD, Clifton E. (W) 1_'512 E. Ellen, Fenton, Mich. C Spark Plug Div., General Motors Corp.) WOOD, Kenneth T. (R) 102 Grace Blvd., Painted Post, K. Y. (Corning Glass Works) WOOD, Llewellyn. Jr. (S) rrington Woods, R. R. 4, Box 209 iIIedgeville, Ga. Oconee Clay Products Co.) WOOD, Russell K. (WI) 3900 E. California St. Pasadena 10, Calif. (Wallace China Co., Ltd.) ' VOL. 35. No. 10 (1956) WOODBRIDGE, Thomas C. 38 Stirling Rd. , Hayes, Middlesex, England (British Bath Co. Ltd.) WOODRUFF, Calvert M. (W) American Nephelidt Ltd. Nephton via Lakefield, Ont., Canada WOODRUFF, Ernest W. (R) Refractory Products Co. 910 Custer Ave., Evanston, Ill. WOODS, C. J. (X) North American Philips Co., Inc. Research & Centrol Instruments Div. 750 S. Fulton Ave., Mt. Vernon, N. Y. WOODS, Hubert (B) Portland Cement Assn. 33 W. Grand A\e., Chicago 10, Ill. WOODS, William J. (M) Pennsylvania Glass Sand Corp. Box 627, Lewistown, Pa. "-OODS, William J., 1r. (M) Pennsylvania Pulverizing Co. Two Gateway Center Pittsburgh 22, Pa. WOODVILLE LIME PRODUCTS CO. O. Robert Cowell, Jr.) 2140 Jefferson Ave., Toledo 2, Ohio WOODWARD, Roger (I) 861 Euclid Ave., Elmira, N. Y. WOODWARD, Thomas R. (S) 2558 Oakwood A\e., Zanesville, Ohio (Elgee Potteries, Inc.) WOOLDRIDGE, Morris L. (R) Owens-Corning Fiberglas Corp. Glass Research, Newark. Ohio WOOLEY, Seward E. (RI) 18 E. Brown St.. Somerville, K. J. (Johns-Manville Research Center) WOOTEN, John H. (S) Elgin-Butler Brick Co., Elgin, Texas WOOTEN, Richard M. (G) 207 Mayfair Rd., KashvilIe, Tenn. (Ford Motor Co.) WORCESTER ROYAL PORCELAIN CO. LTD. (Joseph F. Gimson) Royal Porcelain Works Worcester, England WORCESTER, W. G. (XFI) 720 Sask. Crescent E. Saskatoon. Sask., Canada \,"ORK, Lincoln T. (B) 36 W. 44th St., Rm. 809 Kew York 36, N. Y. (Consulting Engineer) WRIGHT, D. K. (E) American Smelting & Refining Co. 120 Broadway, New York 5, N. Y. WRIGHT, Edward P. (WI) . Box 387, East Liverpool, Ohio (Taylor, Smith & Taylor Co.) WRIGHT, J. E. Messrs. A. G. Hackney & Co., Ltd. Fairfield Pottery, Hanley Stoke-on-Trent, England WRIGHT, John C. c/o Mrs. Sutton, Alfred Station, N. Y. WRIGHT, J. W. (GI) 2703 Densmore Dr., Toledo 6, Ohio (Owens-Illinois) WRIGHT, Roy E. (X) Philadelphia Quartz Co. of Calif. Sixth & Grayson St. Berkeley 10, Calif. WUELLNER, Joseph F. (E) 1602 Galion Ave., Cleveland 9, Ohio (Ferro Corp.) WURTSBAUGH, C. G. (W) Glostex Chemicals, Inc. 3056 Bandini Blvd. Los Angeles 23, Calif. WYATT. Bradley W. (S) Pacific Clay Products 9500 S. Norwalk Blvd. Los Nietos, Calif. WYCKOFF, W. it (R) Joseph Dixon Crucible Co. 167 Wayne St., Jersey City 3, N. J. WYGAXT, James F. (Rl) Standard Oil Co. (Indiana) Engineering Research Dept. 2400 New York Ave., Whiting, Ind. WYNDHAMQCIK, Francis H., Jr. (R) Box 305, Avonmore, Pa. (General Refractories Co.) WYSOKG, Charles F. (B) 425 Clay St., Marietta, Ga. (Georgia Institute of Technolog)') WYSOR, D. C. (R) General Chemical Division Allied Chemical Dye Corp. 40 Rector St., New York 6, N. Y. y YAMAGUCHI, Mitsuo (W) 72 Oakwood Ave., Arlington, K J. (Noritake Trading Corp.) YAMAMOTO. Hideo (G) 305 W. 89th St., !'<ew York 24, N. Y. (Asahi Glass Co., Ltd.) YA~lASAKI, Kazuo Chemical Institute, Science Faculty Xagoy'a University Chikusa, Kagoya, Japan YAMAUCHI, T. Toky'o Kog-yo Daigaku (Tokyo Institute of Technology) Ookayama. MeguroKu, Tokyo, Japan YAMI:\, Michael (G) Mellon Institute. 4400 Fifth Ave. Pittsburgh 13, Pa. YARTE, Andrew A. CW) Productos Ceramicos, S. A. Apartado 486. Monterrey, K. L., Mexico YARTE, Eugene A. eW) Industrias Procesa, Apartado 486 Monterre)', N. L. Mexico YAVORSKY, Paul J. (B) McDanel Refracton Porcelain Co. Beaver Falls, Pa. . YAWITZ, Murray (G) FishSchurman Corp. 70 Portman Rd., New Rochelle, N. Y. YEATER, Roy G. (G) Fostoria Glass Co., Moundsville, W. Va. 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 Parkersburg, W. Va. YOUNG, Howard S. (B) R. R. 1, Chadds Ford, Pa. (E. I du Pont de ~emours & Co., Inc.) YOUNG, James John G. Stein & Co. Ltd. Manuel Works, Linlithgow, Scotland YOUNG, James E. (S) Structural Clay Products Research Foundation, Geneva, Ill. YOUNG, John C. (G) Portuguese Bend Club Portuguese Bend, Caiif. (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. eRl) Cleveland Quarries Co., Amherst, Ohio YOUNG, Taek Shik 32-89 Chongpa Dong Yong San Koo Seoul, Korea YOUNG, Vincent M. (G) Bausch & Lomh Optical Co. 635 St. Paul St., Rochester 2, N. Y. YOUNG, Willard G. (WI) Case Manufacturing Corp. 1000 W. Pine St., Robinson, Ill. ROSTER 119 I ...IIt..., ~ .. YOUNG, W. O. (WI) 6 Livingston St., Honeoye FaIls, N. Y. (Victor Insulators Div., I-T-E Circuit Breaker <:'0.) YOUNGBLOOD. Charles ]., 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. YUTZEY, Marvin G. (D) Fostoria Glass Co., 1200 First St. Moundsville, W. Va. z ZAHN, William A. (W) 10 Church St., Matawan, N. J. (Atlantic Tile Mfg. Co.) ZAHNISER, Geo. B. (W) Shenango China, Inc., New Castle, Pa. ZANOWIAK, Peter P. (S) 515 S. E. 21st St. Mineral Wens, Texas (Texeramics Inc.) ZAPFE, Richard C. (W) 162 Penfield St., Pomona, Calif. (Pomona Tile Mfg. Co.) ZARBO, George (G) 88 Melrose St., Vineland, N. J. (Kimble Glass Co.) ZAVIS, Lewis (W) 11012 S. Chanera, Inglewood, Calif. (H. F. Coors Co., Inc.) ZEHRLAUT, Herbert A. R. (R) Calcium Aluminate Cement Corp. 232 E. 86th St. New York 28, N. Y. ZEILLER, Irwin F. (M) 150 Mason Dr. Manhasset, Long Island, N. Y. (B. F. Drakenfeld &: Co., Inc.) ZELLER CORP. (R E. Costello) Fort Wayne Rd., Defiance, Ohio ZERFOSS, Samuel (BF) Mineral Products Div. National Bureau of Standards Washington 25, D. C. ZICKEFOOSE, Ellis J. (R) Griffin Wheel Co. 445 N. Sacramento Blvd. Chicago 12, Ill. ZIEGFELD, Robert L. (M) Lead Industries Assn. . 60 E. 42nd St., New York 17, N. Y. ZIEGLE, Glenn D. 409~ W. University, Champaign, III. ZIMAR, Frank (G) Corning Glass Works Main Lab., Corning, N. Y. ZIMMER, David C. (WFI) 513 Harding Rd., Zanesville, Ohio (Nelson McCoy Pottery Co.) ZIMMERMAN, Philip D. 611 W. Fayette Ave., Effingham, Ill. ZIMMERMAN, William F. (B) 3836 McNicholas St. Cincinnati 36, Ohio (General Electric Co., Gas Turbine Div.) ZINK, George H. (EI) A. O. Smith Corp. 3535 N. 27th, Milwaukee 16, Wise. ZINK, Harold F. (G) Owens-Illinois, 1700 N. Westwood Ave. Toledo 1, Ohio ZLOCK, Evan P. (G) I-T-E Circuit Breaker Co. 601 E. Erie Ave., Philadelphia 34, Pa. ZLOTNICK, Herbert (BJ) 7902 Bay Pky., Brooklyn, N. Y. ZNEIMER, Joel E. (BI) 108 Duff St., Watertown, Mass. (Raytheon Mfg. Co.) ZORZI, Eugene R. (M) C. Tennant, Sons &: Co., 100 Park Ave. New York 17, N. Y. ZUDNAK, Stephen J. (W) Box 1599, Trenton, N. J. (General Porcelain Co.) ZUMWALT, Donald A. (E) 6904 E. Slauson Ave. Los Angeles 22, Calif. (California Metal Enameling Co.) ZVANUT, Albert J. (B) Lincoln Electric Co. 22801 St. Clair Ave., Box 3115 Cleveland, Ohio ZVANUT, Frank J. (MI) 14533 Bayes Ave., Lakewood, Ohio (Godfrey L. Cabot, Inc.) ZWERMANN, Carl H. (BF) 806 W. Main St., Robinson, Ill. ZWETSCH, Artur Villeroy &: Boch Mettlach/Saar, Germany Addenda AMERICAN CYANAMlD CO. (H. C. Milton) 30 Rockefeller Plaza, New York, N. Y. BAAK, Tryggve (G) 1321 Old Boalsburg Rd. State College, Pa. (Pennsylvania State University) BART, Ronald K. 503 W. Washington, Champaign, Ill. BOWMAN, George A. 402 E. Armory, Champaign, Ill. DAVILA, A. E. Fernandez Londres 1122 Longchamps-FNGR. Argentina (Ferro Enamel S. A.) GILBERT, Frank C. Box 827, Alfred, N. Y. HUND, William O. (R) Box 172, Ranson, W. Va. (Standard Lime &: Cement Co.) KARNER, Ernest F. 806 S. Fifth St., Champaign, Ill. 120 ROSTER ~!cGREGOR. Jimmie R. Prather Hall, Rm. 344-B Austin 18, Texas ~!EDmL, Joseph J. 601 W. l:niversity, Urbana, Ill. MEXTZER, Merle J. 406 E. Springfield Ave. Champaign, Ill. :\ll:RPHY, Leone P. 1005 S. Lincoln Ave., Urbana, Ill. XIELSEX, Thomas H. 406 W. Oregon, Urbana, Ill. PLATT, James (5) Structural Clay Products Institute 2556 Clearview Ave. N.W. Canton, Ohio POTTER, Charles (G) Amersil Co., 685 Ramsey Ave. Hillside, N. J. POWELL, H. Eugene (G) 1061 Michigan Ave., Maumee, Ohio (Kimble Glass Co.) ROACH, Wilfred H. (G) 112 Renwick Ln., Horseheads, N. Y. ("Vestinghouse Electric Corp.) SCH:\EFER, Earl F. (G) 3129 Radford Dr., Toledo 14, Ohio (Owens-Illinois) SEELEY, Clarence E. (G) Glass Products Co. 6911 S. South Chicago Ave. Chicago 37, Ill. TAYLOR, Alan W. (B) Pennsylvania State University Dept. of Ceramic Technology University Park, Pa. WEST-ORAM, Francis G. 11 Walnut Ln., Hartford Northwich, Cheshire, England (Imperial Chemical Industries Ltd.) WIXGERTER, Donald B. (R) 254 Oxford Ave., Fair Haven, N. J. (Johns- Manville) WRIGHT, Phil (W) Taylor, Smith &: Taylor Co. Chester, W. Va. CERAMIC BULLETIN National Institute of Ceramic Engineers Membership Roster Aember Grade I.dcock, Albert S. I.lbery, D. F. \1 t, Leslie R. I.mmerman, J. H. I.ndrews, Andrew I. I.rchbold, Walter H., Jr. I.rmstrong, Leland R. I.mold, Howard C. I.mold, Thomas M. I.rrance, Frank C. \ ustin. Chester R. I.ydelott, Elliott C. 3abcock~ Paul R. 3aile)', 1" loyd 3air, George J. 3aldauf, Earl E. 3aque, Harold W. 3arringer, Lawrence E. 3aumann, Henry N., Jr. 3ea1s, M. Douglas 3eam, James R. 3eecher, Milton F. 3eeton, Earl E. 3enbenek, Raymond Bennett, A. Lee :Jennett, Dwight G. 3ennett, Myles P. 3erkelhamer, Louis H. 3etz, George C. aIPhE. aymond E. 3 Don W., lr. alae urn, A. Red Blake, William V. 3lau, Henry H. Blessing, Robert Lee Blume, Arthur J. Boeker, V. W. Bognar, Edwin J. Bo1linger, Robert H. Booze, M. C. Bowne, Martin S. BO)'d, John E. Boyd, Robert C. Bradley, R. S. Bradwell, Cyril Bramlett, William P., Jr. Brandt, William O. Brown, Donovan P. Brown, Lawrence H. Brownell, Wayne E. Brush, George D. Bryant, Eugene E. Buckner, O. S. Burchfiel, B. M. Burdick, Milton D. Burkhalter, Edward Caito. A. M. Callahan, H. D. Callinan, Edward E. Campbell, Robert M. Carruthers, John L. Carter, F. B. Carter, Herbert D. Cartwright, S. V. Cavanaugh. D. J. Cayford, James M. Christman, H. M. Clare, Robert L. Oark, John D. IWRichard E. , Eugene C. obert W. ,William W. Cole. Sandford S. Coleman, Robert L. Collins. Paul F. Co1lins. Wi1liam G. Commons, Charles H., Jr. VOL. 35, No. 10 (1956) Conover, Ray C. Contardi, William A. Cook, Ralph L. Cordes, 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, Jack 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. Everhart, J. O. Ewing, Robert F. Fabianic, William L. Fahrenbruck. William O. Failmezger, Howard Fallon. Frank J. Fay, Wayne X. Feagin, Roy C. Fellows, R. L. Fels, C. G. Fessler. A. H. Fitzgerald. Alex E. F1emin~, 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, Lewis H. D. 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, ,Tohn Garve, T. Walter Gaskins. W. W. Gautsch, Murray C. Geiger, Charles F. Geller, R. F. Gerster, C. W. Gibson, R. L. . Gill, Joseph W. 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. Hagar, Donald Hallett. Crawford W. Hamilton, Edgar H. Hanna. H. H. Hanna, Ralph E. Hansard, W. Carey Hansen, J. E. Hardy, Ronald G. Harnish, John D., Jr. Hartshorn. T. D. Hartwig, Frederick J., Jr. Hawks, Ralph L. Hazen, E. J. Heddell, James V. Heiligman, H. A. Helser, Perl1' D. Hemsteger, Samuel E. Henderson. Frederick C. Hendren. Robert R. Henry, Edward C. Hepplewhite, ]. W. Herold, Paul G. Hewitt, L. C. Hicks, James C. Higgins, Waldo W. Hopkins, Robert W. Horak, William Horning, Roy A. Hornung, Martin R. Hossenlopp. Arthur M. Hostetter, J. C. Howe, Elroy E. Hower. Lawrence D., Jr. Hower, Robert S. Hughes, Walter M. Hunt, John F. Hunting, Everett C. Huppert, Paul A. Hutchison, Oark Hutchison, R. C. Hyde, Comn Irvine. George C. Ives, John B. Jackson. A. Curtis Jacob, Bernard T. Kauffman, John R. Kautz, Karl Keith, Wendell P. Kempf, William C. Kenagy, William L. Kent, Joseph P. Kent. N. Johnson Keplinger. Robert B. Kerper, Matthew J. Kerr, W. Raymond 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. Koch, William J. Koehler, W. A. Koenig, Charles Jacob Koenig... John H. Koos, ~. 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. Meeka, 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, William C. Montgomery, Earle T. Moore, Dwight G. Moore, Richard S. Morgan, Stuart F. Morgan, William R. Moser, John L. Mowrey, Fred W. Mundy, O. S. Murray, Maurice A. ROSTER 121 ,l J t ,~t ,i,' .r~) I I.. I ,I Nelson, Forrest W. Newcomb... Rexford, Jr. Norton, rrederick H. Olsen, Rangwald S. Ortman, Fred B. ' Ray W. , Willard E. , Joseph A. Pearch, William M. Peck, J. Clair Pence, Forrest K. Perkins, Walter W. Perry, Robert F. Petersen, Fred A. Pfeiffer, Wilbur H. Phillips, Edwin L. Phillips, James G. Place, Tom M. Planje, Christian W. Plankenhorn, William J. Ploetz, Edwin C. Pole, Gordon R. Porst, Edward G. Porter, Frank R. Poste, Emerson P. Postlewaite, D. E. Prey, Arthur H. Price, James E. Prince, Alan T. Prior, Harold D. Puntney, L. E. Raine, Frank F. Rapp, Carl H. Rea, Robert F. Reimer, John J. Remington, Victor H. Rhodes, Fraser B. Rhodes, Ralph R. Richmond, Joseph C. Ricker, Richard W. Riddle, Frank H. Roberts, John Taggart Robinson, Richard E. Robson, James T. Rodriguez, A. R. rs, Edwin J. Herbert J. Ralph Donald W. Roup, Rolland Russell, Howard F. Russell, Ralston, Jr. Rynders, Gerald F. Sandmeyer, Karl H. Santomieri, S. Lewis Sauls. J. B. Schlehr, W. Raymond Schoeninger, Irvin W. Schoeppel, Norman Schofield, H. Zane Schotts. Walter H. Schroeder, Fred W. Schurecht, H. G. Schwartz, M. A. Scbwartzwalder, Karl Scott, Murray Scott, Roger F. Shardlow. L. Russel Sharp, E. W. Shaw. L. 1. Shaw, Myril C. Shepherd, John F. Sherrill, Robert R. Sherwood, Robert F. Shevlin, Thomas S. Shimer, J. B. Siegwald, Clyde R. Silverman, Alexander Silverman, William B. Simison, A. L. Simons, T. Mitchell Simpson, Harold E. Skinner, Kenneth G. Slyh, John A. Smith. C. A. Smith, Hillard A. Smith, Kenneth E. Leland' _ Jack M. , Ernest B. mon, Earl 'Sommerville, J. L. Sosman. Robert B. Speil, Sidney Spencer-Strong, G. H. VOL. 35, No. 10 (1956) Spires, Stephen T. Sproat, Ira E. Stafford, W. L. Steinhoff, Fred L. Stevens, Frank J. Stevens, Robert P. Stevenson, James K., Jr. Stewart, John A. Stolte, Norman H. Stone, Robert L. Strod, Arvid J. Sullivan, John D. Sutton, Willard J. Svec, 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. Thurnauer, Hans Toulouse, Julian H. Trabert, Loren A. Tredennick. William T. Treischel, C. C. Trostel, L. J. Tucker, Donald J. Tucker, Harvey C. Tucker, Roland E. Turk, Richard H. Turner, P. P., Jr. Twells, Robert Van Vlack. Lawrence H. Vaughan, T. Carter Vaughan, W. Harry Watts, Arthur S. Webster, Charles E. Weston. Ralph 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 H. 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. Asevedo, Marcello R. V de Ault, Neil N. Baab, Kenneth A. Ba~nes, Harry H. Beals, Robert J. Beard, Ointon L. Bender, Bob G. Bergeron, Clifton G. Blackwood, James M. Blum, Seymour Bolon, David G. Bradley. Fennimore N. Brant. David G. Breedlove, James G. Brigham, Ralph V., Jr. Bristow, Robert H. Brown, John J., Jr. Browne, Thomas C. Buchan, M. A. Buckles, Paul E. Burks, Cecil M. Bush, James W. Busteed, Donald J. Caldwell, William D. Campbell, Cory V. Carl, John E. Carlson, William G. Carnahan, Thomas D. Chapman, Frank E., Jr. Charland, Tel L. Cleverly, Robert B. Cole, Sanford S., Jr. Cooke, David C. Crookston, James A. Croom, Henry C. Crosby, Donald 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. Dorn. G. Neal Dorsey, John J. Dungan, Robert H. Elston, Keith Emrich, Barry R. Emrich, Harold W. Evans, William W. Farber, Louis G. Faust, Ernest H., Jr. Fillmore, Charles L. Fish, E. Thomas Fitzsimmons, Elmer 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 W., Jr. Garcia-Leal, Ramon Garlick, Philip L. Garvey, Lawrence P. Gates, Daniel W. Giess, Edward A. Giles, James H., Jr. Gornall. Henry A. Grant, John F. Grove, Robert L. Hackler, W. C. Haertling, Gene H. Hannon. Richard C. Harr, W. J. Harris, Ransom S., Jr. Harrison, William B. Hart, Wade J. Hasko, Stephen Hauck, Charles A. Hauser, Richard E. Hawkins, Robert J. Heebner, John C. Helliesen, Richard O. Herbert, John W. Herko, Edward Hessinger, Philip S. HitEeman. ROll'er L. Holl, Barton S. Holmstrom. Joseph H. Hood, L. Scott Horton, Paul B. Huettig. Fred R. Hynes, Frank J. Immediato, Robert Jaffe. Bernard Jelinek. James W. Johnson, Alton E. Johnson, George E., Jr. Johnson, James E. Johnson, James R. Kallup, Charles, Jr. Kalman, Frank R. Kasten, Vernon L. Katz, Joseph M. Kehl, Nelson H. Kelly, William J. Kent, William B. Kepka, George M. Kershner, William G. Killmar, Henry M. Kinsman, Bradley Q. Knudsen, Kyonka, JForsieepdhricch. P. Lachman, Irwin M. LaMaire. Robert V. Laurie, Dominic Lawrence. Walter F., Jr. Layton, Donald R. Leddy, Robert M. Leeds, Donald H. Lefort, Henry G., Jr. Lester. Ronald H. Liederbach, William H. Lindquist, C. Alan, Jr. Long, Russell E. Longfritz, Robert K. Lorey, Frederick D. Lowe, Earl C. Ludwig, David W. Lunak, Thomas E. Lytle, Jack A. McAllister, Christopher McClave, James W. McOelland, Roland H. McCormick, Stewart W. McEvoy, Robert J. McKeen. Richard D. McKinnis. Charles L. McLaughlin, Joseph K. McMurtry, Carl H. MMcaWnriinllgia, mJsa,ckRocb.ert ]. Marcus, Leon Mattison, William F., Jr. Mayfield, lo! ~ville J. Meredith, l\eil F. Michelotti, Joseph E. Milliken, Joseph E. Moffett, Robert A. Mohanty, Gajendra Nath Mohler. Neal F. Montgomery, Eldwin C. Moody, Willis E. Morena, Alfred Morgan, Robert A. Mornin, Bob L. Moss, LeRoy L. Mueller, Edward E. Mueller, James 1. Muller, Max Mulroy, James P. Nohle, Richard C. Oberst, Robert B. Ogden, William D., Jr. Orzano, Michael J. Ottoson, Axel Packman, Willard D. Palmour, Hayne, III Parker, Harry Parson, James A. Patrick, Robert F. Pearch, Howard C. Pechman, Alexander Pedu, Richard K. Pelz, Robert W. Peterson, Jack L. Phoenix, Richard C. Pierson, James F. Poland, Milton E. Post, Benjamin F. Rassner, Donald D. Rempes, Paul E., Jr. Renskers, Richard H. Reuning, George W., Jr. Ricci, Edward M. Rice, Hal H. Riegert, Richard P. ROSTER 123 , r ~~ JI ! t ~, l. .' , ! I I I 1binson, Richard R. 'gers, Melvin F. JOt, H. Dean ,wlands, Robert R. Je, Charles V. CIssell, Norman Keith t 1 n _ L o rAelnfre dD. C. : n B. h , Samuel J., Jr. :huck, John F., Jr. :hwartz, Bernard :ott, Robert M. :ekman, Harry D. ,llers, John T. :mmelman, John O. 3apiro, Howard ~aw, Qarence F. 3eets, Herbert D. nelley, C. B. itonkwiler, Francis P. nook, William B. hopher, Sterling D. mclair, Robert R. Siska, Albert H. Smalley, Howard F. Smith, Richard D. Smyly, 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. Tarnacki, Walter J. Tauber, John A. Taylor, Howard U. Thiemann, John W. Thomason, James F. Thompson, William M., Jr. Thor, Murner E. Tibbals, Harvey L. .Tinklepaugh, J. R. Tostevin, Edgar R., Jr. Townsend, William O. Tripp, Harlan P. Trostel, Louis J., Jr. Troy, H. Neal Truesdale, Richard S. Tse, Shou-cheng Turbett, Paul E. Turner, Robert C. Twells. Robert G. Unum, Robert F. Van Alsten, Roy L. Van Der Beck, Roland R. Van Schoik, Dickson M. . Van Wiggeren, Charles G. Venable, Charles R., Jr. Vera, Francisco Vincent, George L. Vitolo, Sylvester A. Vukovich, Milan, Jr. Warren, George Waters, Martin R. Watkins, Charles Watkins, Robert V. Watkins, William E. Weiss, E. Joseph Welch, A. Philip Westlake, C. Rogers Wheeler, William H. Wherry, Allen P. Williams, Alan B. Williams, Leroy L., Jr. Williams, Robert M. Wilson, Hugh H., Jr. Wilson, Robert C. Wood, Russell K. Woodward, Roger Wooley, Seward E. Zneimer, Joel E. Out of the Kiln II High Temperature Furnaces: Harper Electric Furnace :orp. has announced the availability of continuous carbon ubular element furnaces with tube sizes up to 6 in. LD. n addition to increased tube sizes, the new furnaces feaure continuous operation with automatic mechanical ,usher, entrance preheating chamber, and water-cooled ooling chamber. Expansion: The Robinson Clay Product Co., Akron, )hio, is expanding its Mogadore, Ohio, plant to provide d . a l facilities for the production of Wedge-Lock :1 pe. Installation of automatic equipment, inlu ng overhead chain conveyor and plastisol curing ,vens, will enable the Mogadore plant to produce ap,roximately 1200 tons of Wedge-Lock Clay Pipe monthly. Shielding Study: Walter Kidde Nuclear Laboratories, nc., consultants on applications of nuclear technology, las been awarded a contract by the Corps of Engineers' lesearch and Development Laboratories, Fort Belvoir, la., to prepare a "field expediency shielding study." Acquires Plant: Fischer & Porter Co., Hatboro, Pa., has Lnnounced the purchase of the Andrews Glass Co., Inc., lineland, N. J. Andrews which manufactures laboratory md technical glassware will be operated as a wholly-owned :ubsidiary of the parent company. Movie on Tile: Pomona Tile Mfg. Co. has begun a ;eries of showings of its half-hour motion picture, "Quality n Tile," for architectural and builders groups and tile :ontractors. The film shows the production of ceramic :ile from the mining of talc through the manufacturing )lant and to the customer. Sewer Pipe: Greater structural strength and imper:neability for sewer pipe can be obtained by using ceramic ~lazes, according to Pemco Corp., Baltimore, Md. In a :est of structural strength measurements, using an index of 100 for the normal amount of strength necessary, an :ndependent source rated the various finishes as follows: ,alt glazed pipe (75); vitrified unglazed pipe (100); and ~ramic glazed pipe (125). New Standard: To increase the accuracy of pH measur.s in the highly alkaline range, the National Bureau of ards is recommending a sixth pH standard for use at ith the five pH standards previously established. Consisting of a saturated solution of calcium hydroxide, the new standard will provide an additional fixed point in the standard pH scale which the Bureau maintains. VOL. 35, No. 10 (1956) Office Moved: H. R. Deeth, vice-president and sales manager, American Nepheline, Ltd., has announced the opening of a new sales office for "Lakefield" Nepheline Syenite, at room 2530, Canadian Bank of Commerce Building, 25 King St. W., Toronto, where Mr. Deeth will be located. The sales office at Lakefield will be closed with this move. Material Handling Films: The Material Handling Institute, Inc., Suite 759, One Gateway Center, Pittsburgh 22, Pa., has published a compil~tion of material handling films available from member companies. Distributor: Whittaker, Clark & Daniels will represent the Aquadyne Corporation of Clark, N. J., as distributor for Aquadyne and Hydrodyne. These are highly concentrated, multiphase wetting agents designed for specialized industrial uses. Cleaning Masonry: A new solution which can be used as a substitute for muriatic acid in removing lime and mortar from brick and other masonry work has been developed by Berman Chemical Co., Toledo, Ohio. Donald R. Smith, Ralph Fry, and Vaylord R. Luster have been added to the Sales and Service Staff of the Frit and Glaze Division of Ferro Corp. Frederick G. Stroke has been appointed manager of operations in charge of engineering development and sales of products in the field of nuclear energy and rocketry for the Bettinger Corp., Waltham, Mass. Corning Glass 'Works has announced two appointments in its Consumer Products Division. John M. Bredfeld has been named manager of the Pyrex ware sales department and Daniel J. Lammon, manager of the specialty sales department. William E. Grove, Jr., has been named assistant plant manager of the East Broadway plant of Libbey-OwensFord Glass Co. William G. Tuscany will head sales of the newly created Semi-Conductor Section of Centralab, Division of GlobeUnion, Inc., Milwaukee, Wise. Earl Clemick will handle sales of Packaged Electronic Circuits vacated by Tuscany. Bruno H. Wojcik has been named manager of research and development for the Industrial Chemicals Division of Olin Mathieson Chemical Corp. Dr. Wojcik will be located in Baltimore. Bernard H. Nicolaisen bas been appointed assistant manager of research and development in charge of the division's laboratories at Niagara Falls, N. Y., and Chester White will supervise the Rochester, N. Y., laboratories, formerly the Genesee Research Corporation. William K. MacCurdy, Menlo Park, has joined Thermo Materials, Inc., as vice-president in charge of engineering. ROSTER 125 "~..l :'.l' d.. I I I r I I Kaiser Dedicates Columbiana Plant Kaiser Aluminum & Chemi- cal Corp. dedicated its new basic refractories plant at Co- lumbiana, Ohio, on September 29, marking an important milestone in the growth of its Chemicals Division. The affair became a com- munity celebration as thou- sands of local residents turned out for the plant tours con- ducted during the morning and afternoon. Over 1500 pounds of beef were served at a public barbecue held at noon in Fire- stone Park. Among company officials participating in the brief dedication ceremony which climaxed the day's activities were: E. W. Adams who will serve as plant manager at Columbiana; D. A. Rhoades, Administration building at the Columbiana operation. The plant building is in the background at the left. vice-president and general manager, Kaiser Aluminum & Chemical Corp.; and Frank make it possible to shorten delivery time in some cases by as M. Cashin, vice-president and manager of Kaiser's Chemi- much as 14 days. cals Division. Periclase and chrome ore are the two raw materials used The Columbiana plant took 20 months to construct and in the basic refractories produced at the plant. Periclase is cost nearly $5 million. It covers more than three acres and supplied from Kaiser Chemicals Division's raw materials is located on a 185-acre site on the main line of the Pennsyl- plants in California, while chrome ore is imported from the vania railroad and within a few miles of the Ohio-Pennsyl- Philippine Islands. vania Turnpike. According to Mr. Cashin, the location will The plant has facilities for receiving and storing raw ma- terials; grading, drying, classifying and mixing ingredients; pressing, drying and burning brick; checking and shipping The flrst pallet. load of basic refractory brick is pressed as operations begin finished products. Other facilities include an extensive labo- at Kaiser's Columbiana plant. ratory for quality control, machine shop for servicing the plant, and a separate administration building. Kaiser first began making refractories in 1943 at a small plant in ~IiIpitas, Calif. These facilities, recently expanded and modernized, are now devoted to refractory research. After the war, a new refractory brick plant was constructed near its seawater plant at ~Ioss Landing. Both the Columbiana and ~Ioss Landing plants are in- cluded in an additional $3 million expansion program planned by Kaiser. )iew equipment for ~Ioss Landing will double the present seawater handling capacity and will increase by 50% its capacity to produce periclase. New equipment at Columbiana will include additional pressing and materials handling facilities, which will increase the plant's capacity by 50%. When the installation is com- pleted by the end of the year, the plant's annual capacity for basic brick, aside from ramming mixes and furnace grains, will be 48,000 tons. Intimately, the Columbiana plant will produce 110,000 tons of refractory products per year. Inventors: A supplementary list of 35 new technical problems for the attention of the nation's civilian inventors has been published by the National Inventors Council, U. S. Department of Commerce, Washington 25, D. C. An inventor who has a proposed solution to one of these problems can submit his idea to the Council which will evaluate it and, if it is practicable, present it to the proper military agency. 456 CERAMIC BULLETIN  The American Ceramic Society BULLETIN A monthly publication devoted to the proceedings of 1 of plant, technical, scientific, art, and cooperative 0/,ll f. { L{~~. \.../ . Volume 35,1956 Charles S. Pearce, Editor James S. Welch, Managing Editor Emmoline R. Jamra, Editorial Assistant Mary Weigelt Rohr, 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 (For names, see back of Title Page) Executive, Editorial, and Advertising Offices: 4055 North High Street, Columbus 14, Ohio Publication Office: 20th and Northampton Streets, Easton, Pa. 3RU.CJ .. w ~ i::': ~l . '"