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February 15,1993 I hereby certify that the attached copies of American Ceramic Society Bulletin, Volume 32,1953, are true and accurate copies, which are maintained in the normal course of business at the American Ceramic Society, 735 Ceramic Place, Westerville, Ohio 43081. Christine Schnitzer Product Manager Ceramic Information Center 735 Ceramic Place Westerville, Ohio 43081-8720 614 890 4700 TWX: 7101109409 PLAINTIFF'S EXHIBIT mtD2S30& PLAINTIFF'S EXHIBIT AM E RICAN Institute of Ceramic Engineers Member Changes and Additions : following members have applied for and been ed in the last 12 months by the Institute of Ceramic eers for the grade indicated. need to Member Grade front Associate jlhamer, Louis H., ceramic engineer, Ohmite Mfg.'. Chicago, HI. burn, A. Reif, executive vice-president, Ram, Inc., ambus, Ohio. e, Martin S., general manager, Lee Clay Products . Clearfield, Ky. ;, Robert W., ceramist, Buffalo Pottery, Inc., Buffalo, Y riAN, Robert L,, plant superintendent, Chicago Brick , Chicago, 111. oall, Eugene R., chief engineer, The Mullite Refraces Co., Shelton, Conn. 3, Emerson W., ceramic engineer, R. T. Vanderbilt , Inc., East Norwalk, Conn. , John F., vice-president, Orefraction Inc., Pittsburgh, man, Edward E., general manager, B. F. Wagner & , Pasadena, Calif. e,: Jude M., Jr., acting merchandise manager, U. S. psu^ Co., Chicago, 111. 3, Gordon E., chief engineer, Glen-Gery Shale Brick p., Wyomissing, Pa. i, Harold D., district manager. Titanium Alloy Mfg. -., National Lead Co., New York, N. Y. aond, Joseph C., ceramic engineer, National Bureau of ndards, Washington, D. C. rts, John T., supervising engineer, Crane Co., Chicago, , Rolland R., chief ceramic engineer, Globe Union Inc., Iwaukee, Wis. , John A., assistant supervisor, Battelle Memorial In:ute, Columbus, Ohio. :s, Stephen T., assistant division manager, North lerican Refractories Co., Mount Union, Pa. 3NS, Robert P., refractories engineer, Wellsville Fire ck Co., Wellsville, Mo. inauer, Hans N-, vice-president research, American va Corp., Chattanooga, Tenn. to, Willard G., general manager, W. A. Case & Son g. Co., Robinson, 111. meed to Member Grade from Junior 3Y, Floyd, ceramic engineer, A. O. Smith Corp., Kanka:, 111. er, C. Edward, Jr., ceramic research, Jeffery-Dewitt unt, Lime Material Co., Kenova, W. Va. :, Joseph P., assistant production superintendent, Levii Mfg. Co., Brooklyn, N. Y. er. ward L., ceramic development engineer, Libbey'ent, ,d Glass Co., Rossford, Ohio. , Ralph, research engineer, E. J. Lavino & Co., Norrism, Pa. t, Phillip, executive vice-president, The Claycraft Co., lumbus, Ohio. New Members Member Grade Bollinger, Robert H., technical sales & service, Georgia Kaolin Co., Elizabeth, N. J. Curtis, Carl E., senior metallurgist, Carbide & Carbon Chem. Corp., Oak Ridge, Tenn. Duckworth, Winston H., assistant supervisor, ceran^ technology, Battelle Memorial Institute, Columbus, Ohio. Fleming, Charles A., ceramic engineer, Ingersoll Products Div., Borg-Warner Corp., Chicago, 111. GautSCH, Murray C., plant superintendent, Metal & Thermit Corp., South San Francisco, Calif. Glaze, Francis W., assistant chief, glass section, National Bureau of Standards, Washington, D. C. Howe, Elroy E., director of research, Chicago Vitreous Enamel Product Co., Cicero, 111. McCollom, Perry C., assistant general manager, American Refractories & Crucible Corp., North Haven, Conn. Perkins, Walter W., chief ceramic engineer, United States Stoneware Co., Akron, Ohio. Plankenhorn, William J., research associate professor, University of Illinois, Urbana, 111. Rhodes, Fraser B., chief ceramist, John Douglas Co., Oncinnati, Ohio. Sauls, John B., manager, The Funkhouser Co., Blue Ridge Summit, Pa. Speil, Sidney, research engineer, Johns-Manville Corp., Mauville, N. J. Strod, A. J., president, Uranium Div., The Vitro Mfg. Co., Pittsburgh, Pa. Zink, George H., assistant manager, Glass-Coating Materials Division, A. O. Smith Corp., Milwaukee, Wis. Junior Member Grade Abernethy, Lonnie L., Jr., research fellow. Engineering Expt. Sta., Columbus, Ohio. Carlson, William G., ceramic research engineer, Harbison' Walker Refractories Co., Pittsburgh, Pa. Cooke, David C., ceramic engineer, Universal-Rundle Corp, Camden, N. J. Crosby, Donald P., ceramic engineer, Harbison-Walker Refractories Co., Fulton, Mo. Curran, Robert, sales engineer, Plibrico Jointless Firebrick Co., New York, N.Y. de Prosse, Victor A., ceramic engineer, National Bureau of Standards, Washington, D. C. Diaz, Jose J., plant superintendent, Fabrica Nacional de Loza de Penco, S.A., Penco, Chile, S. A. Dungan, Robert H., research assistant, University of Illi nois, Urbana, 111. Herko, Edward, head of Glass Plant Laboratory, Bausch & Lomb Optical Co., Rochester, N. Y. Hessinger, Philip S., ceramic engineer, Wright-Patterson Air Force Base, Dayton, Ohio. Jacobson, Edwin, Jr., ceramic engineer, Corning Glass Works, Coming, N. Y. Kalman, Frank R., process & quality control engineer, Pemco Corp., Baltimore, Md. Ceramic Bulletin BARNES, \i |HJ: pover, ( | ^bllV, Gi Inc-, St. pjUDSEN, Bureau < f VTLE, JA' ^ Co., Mil MONTGOMI pord Gh jjOHLE, RJ Columbi pgOENIX, . neering, pxeci, Ed1 pennsyh Sheets, Hi tories & - goxMAN, I Alfred, b Sullivan, Bausch & Taylor, Ci Products . Toler, He Chicago, Vukovich, Universit Wood, Ru; , Ltd.. Hui '< A series o lished durin X. Walter C the entire st from the pu a thorough a his proper e- Another a zu dem mod building), is raw materia Zeitschrifl, t national Cei it emphasizi single brick : Mineral Stn Size, Inter-1 and Erectior. Por One of th been placed works. "W, the old "We the rust and Standing 1 ft. of zeon ti yellow letter background makes possil be seen from Indus The use of several indm furnaces ant successful ex Lower ma because corr metal. Whi spectacular i r^ain type- uable under VOL. 32, N JUNES. Walter E., foreman, Robinson Clay Prod. Co., Dover, Ohio. -llY, George D., product engineer, Sylvania Elec. Prod. \DC.'St. Marys, Pa. Friedrich P., ceramic research engineer, Nat. g j of Standards, Washington, D. C. tlE( Jack A., assistant ceramic engineer, Allen-Bradley Co.,'Milwaukee, Wis. oHTGOMBRY, Eldwin C., glass technologist, Libbey-Owenspord Glass Co., Toledo, Ohio. ogLsl Richard C., ceramic engineer, The Claycraft Co., Columbus, Ohio. aOENix, Richard C., assistant instructor in ceramic engijgering, Rutgers University, New Brunswick, N. J. _cj Edward M., student in ceramic engineering, The pgjlnsjdvania State College, State College, Pa. jbbtS, Herbert D., Jr., research engineer. Electro Refracygies & Abrasives Corp., Buffalo, N. Y. oxMAN, Edwin J., research associate, Alfred University, Alfred. N. Y. oOjvan, Paul A., production development engineer, Bausch & Lomb Optical Co., Rochester, N. Y. 'aYLOR. Charles H., Jr., sales engineer, Bay State Abrasive products Co., Westboro, Mass. OLER, Herbert R., Jr., ceramic engineer, Crane Co., West - Chicago, 111. OKOVICH, Milan, Jr., research associate. The Ohio State University Research Foundation, Columbus, Ohio. Wood, Russell K., ceramic engineer, Wallace China Co., Ltd., Huntington Park, Calif. Man and Machines A series of articles on the human factor in industry was pubjshed during 1952 in Die Ziegelinduslrie, Wiesbaden, Germany, T. Walter Garve reports. . Entitled "Der Mensch im Betriebe," a series by J. W. Ludowici is available in reprint form rroni publisher. Going beyond psychology, the articles are j thorough analysis of man in his role as an industrial worker and us proper evaluation for selection and placement. Another article by Dr. Ludowici, "Beziehunger der Keramik tn dem modemen Bauen" (Relationship of ceramics to modern budding), is a review of ceramics from the characteristics of the .-aw materials to the finished wall. Printed in Keramische Zeitschrifi, No. 6, 1952, the report was given at the 1952 Inter national Ceramic Congress in Paris. According to Mr. Garve, it emphasizes testing methods for walls and roofs instead of angle brick and tile in the twenty illustrations and the chapters: Mineral Structure, Machine Structure, Drying, Firing, Quality, Size, Inter-Relationship of Building Materials, Transportation and Erection. Porcelain Sign Says "Westinghouse" One of the largest all-porcelain signs ever built has recently been placed over Westinghouse Electric Corp.'s East Pittsburgh works. "Westinghouse," the new zeon-tube landmark, succeeds the old "Westinghouse Electric" sign which finally gave way to die rust and corrosion of 23 years of service. Standing 20 ft. high and spanning 160 ft., the sign uses 2233 ft of zeon tubing to spell out "Westinghouse" in striking orangeyellow letters at night. By day the letters are white against a background of blue. The two-sided, back-to-back construction makes possible viewing from either of two directions. It can be seen from the air for more than 20 miles. Industry Uses Porcelain Enamel Coatings The use of porcelain enamel for jet engine parts has suggested several industrial applications. Deflecting cones in high heat fwnaces and pipes for degassing operations are particularly sue- examples of porcelain enamel coatings. maintenance and longer operating life are obtained because corrosive gases or liquids are excluded from the base metal. While the coating of jet engine parts has been the most spectacular use of porcelain enamel, the high heat resistance of eertain types of porcelain enamel makes their application val uable under many high temperature and corrosive conditions. V0L. 32, No. 2 (1953) What's New in Ceramic Abstracts by RALPH ROSE ebruary is bonus month for patent literature! Nearly F 120 patent abstracts are presented in this month's issue of Ceramic Abstracts. Although some patents are discussed in the following paragraphs, careful perusal of the various sections should be rewarding. All ceramists probably will be interested in "Problems of Clay and' Laterite Genesis--Symposium," published by the American Institute of Mining and Metallurgical Engineers (p. 32/). Contributions by noted authors cover the subject of days and related hydrated materials from genesis through prospecting techniques to interpretation of X-ray and other experimental data. Also of general interest is Hermann Harkort's paper, ``Determination of Partide Size by Elutriation Analysis, II, HI" (p. 31c). Although Harkort discusses the more sdentific aspects of this problem, he also presents practical abbreviated methods useful in plant control: Engineers working in plants where the grinding of ceramic products is an omnipresent problem will want to read what Hans Krug has to say about the subject. Krug, in his "Grinding Tools and Machines in the Ceramic Industry" (p. 19i), discusses grinding wheels and grinding machines and shows wherein the grinding of ceramics differs from the grind ing of metals. W. Kerstan, in his "Ceramic Products Seen Under the Microscope" (p. 30h), describes glaze-body rdations as ob served in thin section. The discussion of his observations will appeal to technical personnel in the fidd of whiteware. Another interesting abstract in a Highly spedalized part of the whiteware field is that of U.S. Patent No. 2,618,579 (p. 29d). This patent describes a method of cementing two ceramic transducers of the same composition together so that the re sulting composite has the same characteristics as a single unit. The devdopment of better refractories has been "pressured," among other things, by the constant trend toward higher operating temperatures in many industrial processes. This devdopment, as applied to magnesia re fractories, is reflected in U.S. Patent No. 2,603,555 (p. 265) which outlines a method of producing magnesia containing less than 2% lime. Refractory engineers in sted and copper plants will be interested in U.S. Patent No. 2,606,017 (p.' 28a) which daims methods of improving the life of furnaces con structed pf basic brick. If the drying of extruded clay pipe is one of your problems, you will want to read U.S. Patent No. 2,612,706 (p. 24f), which describes a mechanized automatic conveyer-drier ca pable of drying pipe with a minimum of warpage. Boris Daragan, in "Annealing of Flat Glass" (p. 21i), covers a very important subject in the production of glass. He discusses the mechanical and structural concepts of the annealing process and from laboratory data draws condusions of how the various factors involved affect the annealing. Enamel spedalists will want to read "Investigation of Antimony Oxide as an Opadfier for Porcdain Enamds and Glass," by A. E. Pavlish and L. S. O'Bannon (p. 2Id). The authors present information on the effects of sdected oxides on the opadty of a porcdain enamd-like glass containing about 20% antimony oxide. A paper of particular interest to cement technologists, be cause of the subject, and of general interest to all ceramists, because of the instrument and method, is "High Temperature X-ray Photographs of Calrium Silicates and Cement Clinker" by G. Tr6mel and H. Mdller (p. 20/). Tromd and Moller describe work done at temperatures up to 1700C. which gives an insight into the formation of solid solutions at high temper atures and the changes that occur during cooling. Successful analytical and identifying techniques of this type for use at elevated temperatures can add much to the fundamental knowledge of ceramic reactions. 63 ramie &' irsioa American Ceramic Society Membership Roster Sheffield j In c|emsoj Clover port| This Roster of paid Members is published for the use of the Members of The American Ceramic Society. The list is alpha s' betical, with names of Corporation Members in bold-face type and their voting representatives following in parentheses. An asterisk (*) follows the name of each Society Fellow, and a dagger (f) follows the name of each member of the National Institute I-.-of Ceramic Engineers. Junior and Student Members are indicated by (J) and (S), respectively. Life and Honorary Members are also indicated parenthetically after the names. A separate Roster of the National Institute of Ceramic Engineers, showing grades of membership, appears at the con- jf' fusion of this Roster. New Members and other changes received too late to be included are listed in the Addenda at the end of this Roster. -iibs., Dept. 3 10, ,\\' ers New& ile Coll| -o., Phi| irkeley Seattle?! with the Cerai 3roced id for thl mailed r. The: es befi e.s non .m enth das st and ih| idnte f( togethi , reachi fifteen! [Yussteess lie Gen: at I' must I jn on ( Gene _ Article ccmb lie b !. i ,,re tbe| .LETOfl Abbey, R. G., General Refractories Co., 1520 Locust St., Phila delphia 2, Pa. Abbott, Gordon H., Koppel Engineering Ltd., Box 77 Langla- agte. TVL., Union of South Africa Abe, Tosio, 1001, Kami-ikegami-cho, Ota-ku, Tokyo, Japan Abernethy, Lonnie L.t (S), Engr. Expt. Sta., Ohio State Uni versity, Columbus 10, Ohio Abernethy, Mrs. Margaret J. (S), Engr. Expt. Sta., Ohio State University, Columbus 10, Ohio Abingdon Potteries, Inc. (J. M. Lewis), Abingdon, III. Abramson, Isaac, Av. Copacabana, 959-Apto. 902, Rio de Janeiro, Brazil '.''Abrillc, A. Villa, San Miguel Brewery Glass Factory, 132 Aviles, Manila, Philippines Accountius, Oliver E., Battelle Memorial Institute, 505 King Ave.. Columbus 1, Ohio Achuff, Charles E., 839 Balias Rd.. Kirkwood 22, Mo. Ackerson, C. H., Washington Porcelain Co., Willow St., Washington, N. J. A C Spark Plug Div., General Motors Corp. (Karl Schwartz- walder), Flint 2, Mich. Adams, Edward M., Cloverport, Ky. Adams, Mrs. Le Roy, Adams Achers Ceramics, R.R. 2. Vashon. Wash. Adams. Milton, 129 W. Streicher St., Toledo 8, Ohio Adams. P. Bruce, Corning Glass Works, Research and De velopment, Corning, N. Y. Adams. Robert R., Battelle Memorial Institut Fur Deutschland. Wiesbadenerstr., Frankfurt/Main, W-13 Germany Adams, S. L., Joseph F.. Seagram & Sons, Inc., Seventh St. Rd., Louisville, Ky. Adamston Flat Glass Co., Box 631, Clarksburg, W. Va. Adcock, Albert S.,t American Radiator & Standard Sanitary Corp., 6920 Franklin Ave., New Orleans 22, La. Adcock, Lawrence W., Jr., 459 W. Washington St., Frankfort, Ind. Adderley, James R., 42 Church St., Brierley Hill, S. Stafford, England Aderhold, George H.. Saxonburg Ceramics, Box 100, Saxon- burg, Pa. Afflerbach, Harry, R.R. 4, Frankfort, Ind. j.Agashe, R. N. (Bricks), Tata Iron & Steel Co. Ltd., Box s Kumardhubi E-l, Dt. Manbhum, India Agnew, G. D., Universal Potteries, Inc., Cambridge, Ohio Agron, Albert M., Republic Steel Corp., 6100 Truscon, Cleve land, Ohio Ahearn, V. P., National Industrial Sand Assn., 1325 E St., N. W., Washington 4, D. C. Ahl, George W., Jr.. Summit Mining Corp., Bashore Bldg., Carlisle, Pa. Akam, J. W., National Fire Proofing Co. of Canada Ltd., Aldershot, Ont., Canada Akmoran, Miss Huban (S), Box 616, Alfred, N. Y. Akron Porcelain Co. (F. W. Butler), Akron 14, Ohio Albers-Schoenberg, Ernst, Redfield Village, Apt. 17 A 4, Metuchen, N. J. Albert, Joseph, Albert Pottery, Chamblee, Ga. Albcrtalli, Stephen L. (J), Corning Glass Works, Harrodsburg, Kv. Ajbery, D. F.,*t 1433 23rd St. N. W,, Canton 9, Ohio Albrecht, Ernst (S), Keramische Fachschule, Hoehr-Grenz- hausen/b. Koblenz, Germany Alcock, Ronald H., "Ferrum" Espana 402-600, Avellaneda, a,,uens Aires, Argentina ^ den, Charles E,, 2242 W. Third St., Sedalia, Mo. AAlJeexnaiuns,dcCr,arAl .AEx.e,l,T1if8faSnlyott&sgaCtoa.n, , Abo, Fifth Finland Ave. & 57th St., New Alw,Yxoarnkd2e2r,, N. Y. John A., 1909 20th St., Parkersburg, W. Va. ui?ud?r' John B., Southwestern Portland Cement Co.,. 1034 " ilshire Blvd., Los Angeles 17, Calif. VL. 32, No. 10 (1953) Alexander, John M. (J), 2376 Hamilton Ave., North Bellmore, N. Y. Alexander, R. B., National Tile & Mfg. Co., 1200 E. 26th St., Anderson, Ind. Alford, D. C., Mullite Refractories Co., Shelton, Conn. Algemene Vereniging voor de Nederlandse, Aardewerk en Glas Industrie, c/o Mr. H. G. P. Kolfschoten, Haagweg 139, Rijswijk, Netherlands Allen, Alfred W., Ceramic Engr. Dept., Univ. of Illinois, Urbana, 111. Allen, Ben, Corning Glass Works, Corning, N. Y. Allen, Ralph, 1234 Paddock Hills Ave., Cincinnati 29, Ohio Allen, Richard L., t E. J. Lavino & Co., Box 365, Newark, . Calif. Allen, Robert G., Robert G. Allen Co., Box 110: Mechanicville, N. Y. Allen, Walter C., U. S. Steel Corp. Research Lab., Lincoln Highway, Kearny, N. J. Allen, Warren W., Jr., Hydraulic-Press Brick Co., South Park, Ohio Alliance Ware, Ltd. (R. E. Strain), Box 550, Vancouver, B. C., Canada Alliegro, Richard A. (J), Box 1011 Alfred, N. Y. Allison, Adrian G., Battelle Memorial Institute, 505 King Ave., Columbus 1, Ohio Allison, Leroy W., Ceramic Publishing Co., Inc., Box 9073, North Station, Newark, N. J. Alt, Leslie R.,t 547 Simon St., Hayward, Calif. Alton Brick Co. (Eben Rodgers, Jr.), Alton, 111. Aluminum Co. of America (A. R. Pickett), 1501 Alcoa Bldg., Pittsburgh 19, Pa. Amberg, Charles R.,*t Alfred University Research Lab., R. R. 1, Box 212B, Kingston, N. Y. Ambrose, Mary S., 582 Neff Rd., Grosse Point 30, Mich. Ambrosone, Joseph P., 170 Reynolds Ave., Corning, N. Y. American Clay Forming Co. (Dan McPhail), Tiffin, Ohio American Colloid Co. (Paul Bechtner), Merchandise Mart Plaza, Rm.-813, Chicago 54, 111. American Encaustic Tiling Co., Inc. (Robert A. Williams, Jr.), Ninth St. & Kenilworth Ave., Lansdale, Pa. American Gas Assn. (C. G. Segeler), 420 Lexington Ave., New York 17, N. Y. American Lava Corp. (John Kruesi), Chattanooga 5, Term. American Nepheline, Ltd. (H. R. Deeth), Lakefield, Ont., Canada American Optical Co. (A. H. Bennett), Research Center, Southbridge, Mass. American Porcelain Enamel Co. (Robert Long), 1285 Keating Ave., Muskegon 36, Mich. American Potash & Chemical Corp. (R. M. Curts), 122 E. 42nd St., New York 17, N. Y. American Radiator & Standard Sanitary Corp. (James S. Goodman), 834 E. Broadway, Louisville 4, Ky. American Smelting & Refining Co. (L. G. Matthews), 120 Broadway, New York 5, N. Y. American Window Glass Co. (A. S. Crandon), 9 W. Park Way, Pittsburgh 12, Pa. Ames, R. N.,t 10352 S. Wood St., Chicago 43, 111. Ames, Robert G., 69 Jefferson Ave., Cresskill, N. J. Amin, R. B., Alembic Chemical Works Co. Ltd., Baroda, India Ammerman, J. H.,t 202 Scribner, DuBois, Pa. Ammon, Millard G., Ferro Corp., 4150 E. 56th St., Cleveland, Ohio Amsler Morton Corp. (P. M. Offill), Chamber of Commerce Bldg., Pittsburgh 19, Pa. Anchor Hocking Glass Corp. (W. V. Fisher), Lancaster, Ohio Ancizar, Jorge Sordo, Laboratorio Quimico Nacional, Ministerio de Minas y Petroleos, Apartado 2577, Bogota, Colombia Anderson, Harry L.,t Republic Steel Corp., Warren, Ohio Anderson, Herbert H., 401 N. Main St., Port Allegany, Pa. Anderson, Orson L., Bell Telephone Labs., Murray Hill, N. J. Roster 1 R. E., Robertson Mfg. Co., Box 848, Trenton 5, A.nd'erson> Rupert C., Valley View R. R. 2, New Brighton, Pa. Anderson, Scott, The Anderson Physical Laboratory, 609 S. ^ sixth St., Champaign, 111. inHerson, William B., Titanium Pigment Corp., Ill Broad way, New York, N. Y. Andreasen, A. H. M. (Honorary), Oster Voldgade 10, Copen hagen K, Denmark Ajidrews, Andrew I.,*+ Ceramics Bldg., University of Illinois, Urbana, 111. Andrews, Ray, B. F. Drakenfeld & Co., Inc., Box 519, Wash ington, Pa. Annis, Aldon P., c/o Texas Vitrified Pipe Co., Box 111, Min eral Wells, Texas Antaki, Emile, Calle Espana 402/600, Avellaneda, Buenos Aires, Argentina Anthony, George, H., 41 Marion Dr., Poland, Ohio Anwyl Robert H., 1588 Bellaire PL, Pittsburgh 26, Pa. Ao, Takeo, No. 11 1-chome, Dairyo-Machi Sumiyoshi, Osaka, Arango, G. Botero, Balboa 63-13, Medellin, Colombia Archbold, Walter H., Jr.,t 125 Smallwood Dr., Snyder 21, N. Y. Archibald, W. A., The British Iron & Steel Research Assn., 140 Battersea Park Rd., London S. W. 11, England. Archie, Chad L., Jackson Brick & Clay Products Co., Corinth, Miss. Archie, Chad L., Jr. (S), Box 465, Corinth, Miss. Arensberg, Francis L., Vesuvius Crucible Co., Box 8275, Swissvale, Pittsburgh 18, Pa. d'Argenteuil, Comte L. de Meeus, Societe Ceramique, Hoge Barakkenstraat 6, Maastricht, Netherlands Arketex Ceramic Corp. (George Shoemaker), 6 N. Walnut St., Brazil, Ind. Armco Steel Corp. (R. S. Burns), Research Library, Middle- town, Ohio Armistead, W. H., 65 E. First St., Corning, N. Y. Armstrong Cork Co. (E. C. Emanuel), Research Labs., Lan caster, Pa. Armstrong, Leland R.,T 27 Morgan Ave., Washington, Pa. Arnold, Howard C.,*t 76 Standish Blvd., Pittsburgh 28, Pa. Arnold, Russell E.,* Box E, East Akron Station, Akron 5, Ohio Arnold, Thomas M.j Red Wing Potteries, Inc., Red Wing, Minn. Arrance, Frank C.J Coors Porcelain Co., Golden, Col. Arrandale, Roy S., Thatcher Glass Mfg. Co., Inc., 1901 Grand Central Ave., Elmira, N. Y. Arras, George, 32 S. Peoria St., Chicago 7, 111. Arthur, Edwin P., 2415 Catherine Rd., Altadena, Calif. Arwine, A. S., Refractory & Insulation Corp., Port Kennedv, Pa. Asdell, Bernard K., Edgar Brothers Co., McIntyre, Ga. Asher, Glen J.J 2568 Illinois, South Gate, Calif. Ashman, Leland E., Mellon Institute, 4400 Fifth Ave., Pitts burgh, Pa. Ashworth, George L., & Brothers, Ltd. (William G. EvansL Broad St. Works, Hanley. Stoke-on-Trent, England Auer, Konrad F., Netstal, Kt. Glarus, Switzerland Ault, Neil N., Research Lab., Norton Co., Worcester, Mass. Auskern, Allan (S), Department of Ceramics. M. I. Bldg.. Pennsylvania State College, State College, Pa. Austenal Laboratories, Inc., (R. C. Feagin), 224 E. 39th St., New York, N. Y. Austin, Arthur O., Box 109, Barberton, Ohio Austin, Charles E., Consolidated Brick Co., Horseheads, N. Y. Austin, Chester R.,*t Koppers Co., Research Dept., Koppers Bldg.. Pittsburgh 19, Pa. Austin, James Bliss,* Research Lab.. United States Steel Corp., Lincoln Highway, Kearny, N. J. Austin, J. L.,t Carborundum Co., Niagara Falls, N. Y. Austin, Lewis M., 2334 Middlesex Dr., Toledo 6, Ohio Aydelott, Elliott C.,t R.R. 3, Clarks Summit, Pa. B aab, Kenneth A.,t 628 Sixth Ave., Bethlehem, Pa. aarson, Robert E., Armour and Co.. Chemical Div., Flotation Sect., 1355 W. 31st St.. Chicago 9, 111. ^aba, Paul D. (S), 358 Pennington St., Elizabeth 2, N. J. abcock, Clarence L.,* 1718 Potomac, Toledo 7, Ohio abcock, M. G., 618 Kenilworth Dr.. Pittsburgh 34, Pa. a.,cck, Paul R.,t Frenchtown Porcelain Co., Frenchtown, N. J, Babcock & Wilcox Co. (A. M. Kohler), 161 E. 42nd St., R New York 17, N. Y. aeb. Carl H., Tuthill Bldg. Material Co., 545 E. 103rd St., Chicago 28, 111. V>~ 32, No. 10 (1953) Bach, William E., Jr. (J), 2709 Cypress Way, Cincinnati 12, Ohio Bacher, Holland R., Rock Tavern, N. Y. Bachman, Charles D., Apt. 13-A, Arnold Dr., Millville, N. J. Bachman, George S., 151 W. Washington St., Shelbyville, Ind. Bachman, Wheeler Carr, R.R. 5, Grafton, W. Va. Backus, Lulu S., 451 S. Goodman St., Rochester 7, N. Y. Bacon, Frank R., 3153 Darlington Rd., Toledo 6, Ohio Bacon, Leslie R., Research & Development Div., Wyandotte Chemicals Corp., Wyandotte, Mich. Badger, Alfred E.,* Libbey-Owens-Ford Glass Co., 1701 E. Broadway, Toledo 5, Ohio Baer, G. F., Universal Wheel and Abrasive Corp., 400 N. Ash land Ave., Chicago, Ilf. Baer, G. M., R. C. Remmey Son Co., Hedley St. & Delaware River, Philadelphia 37, Pa. Bagby, Richard A. (S), 128 E. Hamilton Ave., State College, Pa. Bagley, Norman H., 11 Hillcrest Rd., Caldwell, N. J. Bailey, Cuthbert, Doulton & Co., Ltd., Royal Doulton Pot teries, Burslem, Stoke-on-Trent, England Bailey, Floyd,t 840 S. Sixth St., Kankakee, 111. Bailey, James,* 95 Steele Rd., West Hartford 7, Conn. Bain, Andrew R., The Whins, 26 Park Terrace, Stirling, Scotland Bair, George J., * 1 Technical Products Div., Corning Glass Works, Corning, N. Y. Baker, Arvid H., 89 Church St., Port Allegany, Pa. Baker, Burton E., 15 Gwynlake Dr., Baltimore 7, Md. Baker, D. Martin, 1025 Gardner Blvd., Barberton, Ohio Baker, Dunbar J. (J), 118 S. Jefferson St., Mt. Union, Pa. Baker, Henry J. (j), 4820 Roland Ave., Baltimore 10, Md. Baker, Houston R., 158 E. Third St., Corning, N. Y. Baker, Robert L., 46 Highland Ave., Wellsville, N. Y. Baker & Co., Inc. (H. Klausmann), 113 Astor St., Newark, N. J. Baldauf, Earl E.,1 Flamingo Tile Corp., Box 268, Lake Wales, Fla. Baldry, Stanley F. T., E, R. G. Industrial Corp., Ltd., Luton Rd., Dunstable, Beds., London, England Baldwin, E. H., Pennsylvania Wire Glass Co., Dunbar, Pa. Baldwin, William J., Titanium Alloy Mfg. Div., National Lead Co., Niagara Falls, N. Y. Balinkin, Isay A., University of Cincinnati, Cincinnati 21, Ohio Balint, Nancy (J), 171 Morsemere Ave., Yonkers, N. Y. Balke, Claire C., Balke Research Associates, Inc., 20 Livezey St., Doylestown, Pa. Ball Brothers Co., Muncie, Ind. Ball, Albert L., Bay State Abrasive Products Co., Westboro, Mass. Banister, Monte W. (S), 1513 S. Cornelia, Sioux City 6, Iowa Baque, Harold W., 1511 Mohican Dr., Pittsburgh 28, Pa. Barba, C. E., Sr., R.R. 1, Doylestown, Pa. Barba, C. E., Jr., Creek Rd., R.R. 1, Doylestown, Pa. Barber, Stephen W., Owens-Illinois Glass Co., 1700 N. West- wood Ave., Toledo, Ohio Barbour, David J.,* 345 E. Highland Dr., Zanesville, Ohio Barium Reduction.Corp. (K. O. Priddy), South Charleston 3, W. Va. Barbre, Norris H., Mellon Institute, 4400 Fifth Ave., Pitts burgh 13, Pa. Barger, Harold D., 31328 Lake Rd., Bay Village, Ohio Barker, Harry L., The Salem China Co., Salem, Ohio Barlett, Helen B.,* A C Spark Plug Div., General Motors Corp., Flint 2, Mich. Barnes, Lt. Harry H.,t 166th Ftr. Sqd. Lockbourne AFB, Colum bus, Ohio Barnes, Wilson R., Corhart Refractories Co., 16th and Lee Sts., Louisville 10, Ky. Barnett, Charles W. H., 53A Midland St., Worcester, Mass. Barney, Ronald N. (S),'Box 1677, Georgia Tech., Atlanta, Ga. Baron, Jean, 15 Place Carnot, Nancy (Meurthe et Moselle), France Barr, Harry, Consolidated Feldspar Dept., International Minerals & Chemical Corp., 28 W. State St., Trenton. N. J. Barr, Norman E.,t Eagle Picher Co., Box 290 Research Dept., Joplin, Mo. Barr, Robert A., 162 Buena Vista Ave., Fair Haven, N. J. Barr, Seymour J., Shenandoah Brick & Tile Corp., Box 32, Winchester, Va. Barrett, Harvey N., Jr., 2233 St. James Parkway, Cleveland Heights, Ohio Barrett, Maurice (Life), 8 Oxcliffe Rd., Morecambe & Heysham, England Barrett, Wayne E., R. R. 1, West Des Moines, Iowa Barringer, Lawrence E.,*t 23 Front St., Schenectady 5, N. Y. Barron, Frank C., 75 Atlantic Ave., Matawan, N. J. Roster 3 Bartholomew, George A., 5514 Wilkins Ave., Pittsburgh 17, Pa. Bartlett-Collins Co. (Harrison I. Bartlett), Sapulpa, Okla. Bartlett, E. E., 4387 Boca Chica Blvd., Brownsville, Texas. Bartlett, Harrison I., Bartlett-Collins Co., Sapulpa, Okla. n-arton, G. E.* (Life), 227 Pine St., Millville, N. J. irzaghi, Luciano, Ceramica Sao Caetano, Rua Roa Vista, 84-6 andar-, Caixa Postal 278, Sao Paulo, Brazil Bass, N. W., Brush Beryllium Co., 4301 Perkins Ave., Cleve land 3, Ohio Bassett, Leon B., Box 284, Alfred, N. Y. Bassett, Ray E., Acme Brick Co., Box 425, Fort Worth, Texas Bassett, Robert, Staso Milling Co., Darlington, Beaver County, Pa. Bateman, L. A., Eljer Co., Enamel-Ware Div., Salem, Ohio Bates, Charles E., Hanley Co., Summerville, Pa. Bates, Edgar A., 204 Florida Dr., New Kensington, Pa. Bates, H. Clifford, Corning Glass Works of Canada Ltd., Leaside, Ont., Canada Bates, P. H.* (Life), 1620 Seventh St. N., St. Petersburg, Fla. Bateson, H. Marshall, 68 Spring Grove, Loughton, Essex, Eng land Bauer, Richard M., 728 St. Louis Ave., Zanesville, Ohio Bauer, Wolf G., 5213 11th Ave., N. E., Seattle, Wash. Bauleke, Maynard P. (S), Ceramic Engineering Dept., Iowa State College, Ames, Iowa Baumann, Henry N., Jr.,t 1275 Wyoming Ave., Niagara Falls, N. Y. Baumer, Leon N.; 240 Rockingham Rd., Pittsburgh 15, Pa. Baumler, Karl, Pittsburgh Corning Corp., Sedalia, Mo. Bausch & Lomb Optical Co. (Murray Scott), Rochester 2, N. Y. Bay State Abrasive Products Co. (O. S. Buckner), Westboro, Mass. Bayliss, John M., 629 Frederick St., Lancaster, Ohio Beal, D. S., 15 Oak Dr., Poland, Ohio Beals, M. Douglas, Research Lab., Titanium Div., National Lead Co., South Amboy, N. J. Beals, Robert J., 109 Ceramics Bldg., University of Illinois, Urbana, 111. Beam, James R.,*t 23 Crown Terrace, Morrisvil'le, Pa. Beard, Clinton L., 2562 N. Palmer St., Milwaukee 12, Wis. Beasley, Dennis R.. 3654 Piedmont Rd., Huntington, W. Va. Beathard, Robert K., General Tile Corp., Box 38, El Segnndo. \ Calif. jeaton, Orville, Gem Clay Forming Co., Sebring, Ohio Beaudoin, Armand J. (J), 3410 Archwood Ave., Cleveland 9, Ohio Beaver, Wallace W., Brush Beryllium Co., 4301 Perkins Ave., Cleveland, Ohio Beazell, William H., American Window Glass Co., 9 W. Park Way, Pittsburgh 12, Pa. Bebbington, Philip J., 59 Russin Ave., Framingham, Mass. Bechtel, Frances E., R.R. 2, Saunders Settlement Rd., Lewiston, N. Y. Bechtner, Paul, American Colloid Co., Merchandise Mart Plaza, Rm. 813, Chicago 54, 111. Beck, Elmer W., Ceramic Supply Co., Crooksville, Ohio Beck, Homer, Richland Shale Brick Co., Mansfield, Ohio Beck, Norman R., Carr-Lowrey Glass Co., Baltimore 3, Md. Beck, Roy D., 6330 Moraine Ave., Hammond, Ind. Beck, Warren R., Central Research Dept., Minnesota Min ing & Mfg. Co., St. Paul 1, Minn. Beckemeyer, Harry J., Research Lab., Universal-Rundle Corp., New Cctstle Becker, Bruce N. (J), 130 Walnut St., Fleetwood, Pa. Becker, Martin G., Box 542, Brookhaven, Miss. Beecher, Milton F.,*t 50 Woodland Rd., Holden, Mass. Beeler, L. S., Reynolds Metals Co., 2500 S. Third St., Louis ville 1, Ky. , Beerman, Henry P. (J), National Bureau of Standards, 209 West Bldg., Washington 25, D. C. Beers, Roland F., Box 1015, Troy, N. Y. Beeton, Earl E.,t 1604 Lincoln St., Bethlehem, Pa. Begien, Virginia, American Ceramic Society, Inc., 2525 N. High St., Columbus, Ohio Behrenberg, John (J), 7 Prospect St., Warren, Pa. Behrend, Oswald, 4037 Packard Rd., Toledo, 12, Ohio Behringer, H. L., Tygart Valley Glass Co., Washington, Pa. Beinlich, Alfred W., 3404 19th Ave., Sheffield, Ala. Beinlich, Justus J., U. S. Steel Corp., Rm. 2421, 525 William Penn Place Bldg., Pittsburgh 30, Pa. Bell, Kenneth E., Saskatchewan Clay Products, Estevan, Sask., I Canada Bell, Richard, Bell Minerals Co.. West Paris, Me. Bell, W. C., Dept, of Engineering Research, North Carolina State College, Raleigh, N. C. Bellido, Bartolome Darnis, Lugones (Oviedo), Spain Below, Henry, Pennsbury Pottery, Morrisville, Pa. Benbenek, Raymond,! Pleasant Garden, N. C. 4 Roster Bender, Bob G.J Rauland Corp., 4245 N. Knox Ave., Chicavr, 41, 111. so Bender, John H. (S), 1980 Teller Ave., Lakewood, Colo. Benedict, Virginia, American Ceramic Society, 2525 N. St., Columbus 2, Ohio Benjamin Electric Mfg. Co. (Hoyt P. Steele), Des Plaines, In Benner, LCDR Stanley G., U.S.N.R., AE-416, Navy Dent Washington 25, D. C. ^ Benner, W. J., 730 Romona Rd., Wilmette, 111. Bennett, Alva H., American Optical Co., Research Center Southbridge, Mass. J Bennett, A. Lee,*! Gladding, McBean & Co., 2901 Los Feli Blvd., Los Angeles 39, Calif. Bennett, Dwight G.,*f 204 Ceramics Bldg., University of Illinois, Urbana, 111. > Bennett, Francis H., Pratt & Whitney Aircraft, MDL D-93R East Hartford 8, Conn. ^ Bennett, Frederick R., Box 325, Hartsville, S. C. Bennett, Harry J., Crooksville China Co., Crooksville, Ohio Bennett, Myles P.,t 6552 N. Oldham Lane, San Gabriel, Calif. Bennett, Walter R., Acme Brick Co.,. Denton, Texas . Bentz, Frank J., National Plumbing Pottery, Inc., Dearborn St Zanesville, Ohio ' Berg, Morris (S), 3407 Tulane Dr., Apt. 33, West Hyattsvillei Md. ?; Bergamaschi, Henry Trent (S), 518 29th St., Union City, N. J; Berger, Bernard M., Dept. 817, Sears, Roebuck & Co., S. Homan Ave., Chicago 7, 111. Berger, Donald Francis, 41 W. South St., Painesvil'le, Ohio Bergeron, Clifton G.J 12027 W. Potter Rd., Milwaukee 13, W! Berg-Iversen, Wiggo, A/S Egersunds Fayancefabriks Co Egersund, Norway Berkelhamer, Louis H.,t Ohmite Mfg. Co., 4835 Flournoy, St., Chicago 44, 111. Bernardini, Guy F., Box 70-A, R. R. 1, Latrobe, Pa. Berns, Milton H., 42 Dudley Ave., Hamburg, N. Y. Bernstorf, Robert B., Box 679, East Liverpool, Ohio Best, Edison F., Libbey-Owens-Ford Glass Co., 1701 E. Broa_ way, Toledo 5, Ohio Bethlehem Steel Co. (H. M. Kraner), Bethlehem, Pa. Bettison, L. S., Chambers Brothers Co., 52nd St., Corner Media, Philadelphia 31, Pa. Betz, George C.,*t Metal & Thermit Corp., 100 E. 42nd S' New York 17, N. Y. Betz, Wilbert A., The U. S. Potters Assn., 104 E. Fou~ St, East Liverpool, Ohio Bevis, Ralph E.,t Aconcagua 615, Mexico 10, D. F. B. G. Corp. (Frank J. Fallon), Ridgefield, N. J. Bickelhaupt, Roy E. (J), 853 Forrest Ave., South Bend, Ind.. Bickford, Fred A., Box 29, R. R. 2, Campbell, N. Y. Biddle, George J., 208 S. La Salle St., Chicago 4, 111. Biddulph, Albert, 11 Holden Rd., Wolverhampton, England J Bidwell, George E., 605 W. Martin St., Abingdon, 111. Billian, Carroll J., Owens-Illinois Glass Co., General Resear. Div., 1700 N. Westwood Ave., Toledo 1, Ohio t: Billings, David D., Glass Containers, Inc., 3601 Santa Fe Av` Los Angeles 11, Calif. Birch, Raymond E.,*t 1800 Farmers Bank Bldg., Pittsbu 22, Pa. Bishop, Frederic L.,* American Window Glass Co., R search Dept., Turtle Creek, R. R. 2, Pa. Bishop. Harold E., Owens-Corning Fiberglas Corp., Anders; S. C. Bishop, Laverne R., 3329 Market, East St. Louis, 111. . Bissell, Don W., Jr.,t 850 Sherwood Dr. N. W., Beloit, Wis. J Bissell, E. S,, L. H. Butcher Co., 3628 E. Olympic Blv? Los Angeles 23, Calif. . v. Black, H. R., Kimble Glass Co., 2626 Dorr St., Toledo, Ohio..;, Black, James A., 13700 Sparta Ave. N. W., Kent City, Mich. ;; Black, Lloyd V., 1006 Oregon Ave., Tarentum, Pa. Blackburn, A. ReifJ 204 N. State St., Westerville, Ohio Blackwood, James M.,t 59 W. Royal Forest Blvd., Column Ohio _ .. Blaes, Henry M., II (J), 339 N. Hoover Ave., Whittier, Cal Blaha, Emil, 415 Ashmead Rd., Cheltenham, Pa. Blair, Gerald E.. 1744 Ayrault Rd., Fairport, N. Y. ,, Blair, Marion W.,* 2131 S. Center St., Terre Haute, In<L-, Blaison, Pierre, Societe Des Electrodes Et Refracton "Savoie," 43, Rue de l'lndustrie, Venissieux (Rhone), Fr" Blake, A. E,, 78 Park Ave., West Caldwell, N. J. Blake, Edwin M., Box 210, Mount Kisco, N. Y. Blake, William V.J Macklin Abrasive Co., Jackson, Mich. Blanchard, M. Kenneth, A. O. Smith Corp., 3533 N. 27th a.. Milwaukee 1, Wis. . Bland, Edward J., 9563 Manorford Dr., Parma Heights 29, O Blankenstein, E. E., Western Electric Co., 2525 Shadeland Av* Indianapolis, Ind. L._ Blau, Henry H.,*t Federal Glass Co., E. Innis Ave., Column- 7, Ohio Ceramic Bullet fenko, William H., Jr., 1412 Main St., Milton, W. Va. jessing, Robert Lee,t 1720 Boneta Ave., Richmond Heights 17, Mo. jiss, L. G., Foote Mineral Co., 18 W. Chelten Ave., Phil adelphia 44, Pa. locksidge, Arthur B., Jr., Jones & Laughlin Steel Corp., 40 ILongworth St., Pittsburgh 7, Pa. jjodgett, Malcolm, 660 Main St., Woburn, Mass, odgett, William E., 18 Mishawum Rd., Woburn, Mass, johm, Richard E. (J), 71-6 Middlesex Rd., Waltham 54, Mass, oom, Ray A., c/o Technical Library, Timken Roller Bearing Co., Canton 6, Ohio :oot, C. A., Universal Clay Products Co., Sandusky, Ohio loore, Robert B., Swinnertons Ltd., Hanley, Stoke-on-Trent, England loss, Harold E. (S), Box BB, Alfred, N. Y. jne Ridge Glass Corp. (J. H. Lewis), Kingsport, Tenn. lum, Seymourt (S), Dept, of Metallurgy, Rrn. 4-051, Massa chusetts Institute of Technology, Cambridge 39, Mass, lume, Arthur J.,i c/o Murray Tile Co., Cloverport, Ky. junt, Royden A.,* Buck Glass Co., Fort Ave. & Lawrence St., Baltimore 30, Md. lythe Colour Works, Ltd., Cresswell, Stoke-on-Trent, Eng land oardman, Charlotte K., Thomas A. Edison, Inc., 51 Lakeside ,Ave., West Orange, N. J. -browsky, A. R., 2012 Pontiac Rd., R.R. 5, Ann Arbor, Mich, beker, V. W.,t Owens-Coming Fiberglas Corp., 16 E. 56th jSt., New York, N. Y. ^gatay, Paul, 45 W. Weisheimer Rd., Columbus 2, Ohio !-gnar, Edwin J.,t Bognar & Co., Inc,, 2041 Oliver Bldg., Pittsburgh 22, Pa. hn, Edward L., Mullite Refractories Co., Shelton, Conn, le, George A.,* Engr. Experiment Sta., Ohio State University, Columbus 10, Ohio TIinger, Robert H.,i Georgia Kaolin Co., 433 N. Broad St., Elizabeth, N. J. Ton, David G.,t 415 Nob Hill Place, Apt. 5, Ann Arbor, Mich. Tton, Harry L., Philadelphia Quartz Co., Public Ledger Bldg., hdependence Square, Philadelphia 6, Pa. 'z, Leonard H., National Bureau of Standards, Div. 9:7 ;onn. Ave. & Van Ness, Washington 25, D. C. riebrake, H. P., Aluminum Co. of America, Alcoa Bldg., ittsburgh 19, Pa. . giovanni, John C., Park Blvd., East Liverpool, Ohio 'nifas, Paul A., 5023 Eighth Ave., N.E., Seattle 5, Wash, ``"k, John A., Corning Glass Works, Fallbrook Plant, Corning, 7 Y. Jnner, Don B., 2149 E. 37th St., Los Angeles 11, Calif, innot Co. (B. T. Bonnot), Canton, Ohio Tinot, B. T.,* The Bonnot Co., Canton, Ohio ,Jrne, John W., 46 Rugby Rd., Binghamton, N. Y. both, John F., Hazlehead Hall, Penistone, Nr. Sheffield, Shefeld, York, England '"ze, M. C.,*t Charles Taylor Sons Co., Box 58, Annex ,Sta., Cincinnati 14, Ohio opp, Harold F.,* 67 Gorton St., Corning, N. Y. .'ros, John, 1140 E. Jackson St., Long Beach 5, Calif. ,,sch, F. M., Laboratory Anorganisch-Technische & Electro hemie, 22 Plateaustraat, Ghent, Belgium ,-Sler, Krell, 613 Worcester Rd., Towson 4, Md. -tfield Refractories Co. (George B. Botfield), Swanson & lymer Sts., Philadelphia 47, Pa. jtfield, George B., Botfield Refractories, Swanson & Clymer ts., Philadelphia 47, Pa. --der, Norman M., Jr., 4820 Roland Ave., Baltimore 10, Md. ~ultbee, Donald (J), 293rd Engr. Const. Bn.. APO 34, c/o M, New York, N. Y. (unine, Jean, Strafor-Maroc-Fedala, Morocco, N. W. Africa ?J>rgerie, R. D., Radio Materials Corp., 3325 N. California Ave., Chicago, 111. -Vee, Benedict A., Winter Rd., Grand Island, R.R., N.Y. `wer, David N,, 3932 Rohr Dr., Toledo 13, Ohio ~wer, James A., 107 First St., Chester, W. Va. wers, Donald J., 950 Highland Dr., Columbus 14, Ohio wes, Urban E..* Owens-Illinois Glass Co., Box 1035-1036, Toledo 1, Ohio jvman, Donald C., 170 N. Du Bois Ave., Elgin, 111. _ t'man, Eugene D., 265 S. Monroe Ave., Columbus 5, Ohio wman. John G., 341 S. Juliana St., Bedford, Pa. ~~ne, Martin S.,t Lee Clay Products Co., Clearfield, Ky. ,.Tc<-i Joseph, Vitro Mfg. Co., 60 Greenway Dr., Pittsburgh, Ma- Tce> Robert E., Harker Pottery Co., East Liverpool, Ohio -ce. Walter A. (J), 84 Whittlesey Ave., West Orange, N. J. N-y.d,J.Frank H., S. G. Frantz Co., Inc., Box 1138, Trenton, v?yd, G. M., Locke Dept., General Electric Co., Box 57, Balti; mre 3, Md. Ph. 32, No. 10 (1953) Boyd, Harold W., Jr., Mead Board Sales, Inc., 3351 Madison Rd., Cincinnati 9, Ohio Boyd, John E.,1 Box 2414, Greensboro, N.C. Boyd, Robert C.,*t American Radiator & Standard Sanitary Corp., 1541 S. Seventh St., Louisville 8, Ky. Boyles, John P., Scammel China Co., 300 Third St., Trenton, N. J. Boynton, Claudia G., 7040 Yale Ave., Chicago 21, 111. Boynton, Robert S., National Lime Assn., 925 15th St. N.W., Washington 5, D. C. Bozzo, J. G., Pierce Glass Co., Port Allegany, Pa. Brackbill, Charles E., 1415 County Line Rd., Fostoria, Ohio Bracken, A. Lloyd, Jr., 1024 Trout Brook Dr., West Hartford, Conn. Bradford, Virgil E. (S), 59 Reeb Ave., Columbus 7, Ohio Bradley, Alan L., Consolidated Rand Brick, Pottery & Lime Co., Box Olifantsfontein, Transvaal, South Africa Bradley, Charles A., Jr., 21 E. Fourth St., Corning, N. Y. Bradley, Fennimore N. (S), 605 Merriam St., Chattanooga 5, Tenn. Bradley, John R., 46 Maple St., Hornell, N. Y. Bradley, R. S.,*f A. P. Green Fire Brick Co., Research Dept., Mexico, Mo. Bradstreet, Samuel W., Armour Research Foundation, 35 W. 33rd St., Chicago, 111. Bradwell, Cyril,t Parkhurst Apts. 2B, Barbara & Marion Sts., Bethlehem, Pa. Brady, Charles P., 3609 N. Gondar Ave., Long Beach 8, Calif. Brady, John G., Dept, of Mines & Technical Surveys, Ceramic Section, 40 Lydia St., Ottawa, Ont., Canada Brady, Justin M., American Art Clay Co., 4717 W. 16th St., Indianapolis, Ind. Brady, T. E., Surface Combustion Corp., 2375 Dorr St., Toledo, Ohio Brain, Douglas G., I960 Jane St., Toronto 15, Ont., Canada Bramlett, William P., Jr.,1 Cumberland Rd. R. R. 2, Millville, N. J. Brandt, Kristian H., Box 212, Red Bank, N. J. Brandt, Martha W., National Glass Budget, 800 Grogan Bldg., Pittsburgh 22, Pa. Brandt, Nei'll M.,* Mellon Institute, 4400 Fifth Ave., Pittsburgh, Pa. Brandt, William 0.,*f Gladding, McBean & Co., 2901 Los Feliz Blvd., Los Angeles 39, Calif. Brant, David G.,t Universal-Rundle Corp., Box 300, Red lands, Calif. Brashares, C. A., 603 Protective Life Bldg., Birmingham 3, Ala. Brassfield, Henry C., 8269 Sandy Lane, Cincinnati 24, Ohio Brauckman, Alvin J. (S), 3 Kern Ramble, Austin, Texas Braun Corp. (O. H. Lamb), 2260 E. 15th St., Los Angeles 21, Calif. Bray, A. C., Western Clay Mfg. Co., Box 176, Helena, Mont. Bray, Kenneth J., Wenczel Tile Co., Trenton, N. J. Braykovich, A. F., Box 4367 Station A, San Antonio, Texas Brayton, E. Georgia, Brayton Potteries, Inc., 1450 Coast Blvd. S., Laguna Beach, Calif. Brazee, Erland, Elektriska Svetsnings A/B, Gothenburg, Sweden Breedlove, James G.,t American Lava Corp., Chattanooga, Tenn. Breene, George A., Industrial Colloids Co., Emlenton, Pa. Breeze, Lewis K., 467 E. 146th St., Cleveland 10, Ohio Breitwieser, Robert H., 5070 Vallejo St., Denver, Col. Brekke, Trygve, Box 266, Stavanger, Norway Brennan, B. T., Chisholm, Boyd & White Co., 610 W. 57th St., Chicago 21, 111. Brennand, Ricardo, Ceramica Sao Joao S. A,, Caixa Postal 231, Recife, Pernambuco, Brazil Brenner, Harold M., B. F. Drakenfeld & Co., Inc., Wash ington, Pa. Brenner, R. F,,* Anchor Hocking Glass Co., Lancaster, Ohio Brettell. I. P-, The Cooksville Co., 1055 Yonge St., Toronto 5, Canada Bretz, Lewis A., 1718 Theodan Dr., Pittsburgh 16, Pa. Brewer, Bob, Mineral Wells Clay Products Co., Mineral Wells, Texas Brewster, Gordon F., East Williamson, N. Y. Brian, Charles, Paper Makers Importing Co., Inc., 44 S. Second St., Easton, Pa. Brian, Dick, 422 Florida Ave., Chester, W. Va. Brian, S. Douglas, Paper Makers Importing Co., Inc., 44 S. Second St., Easton, Pa. Brigham, Ralph V., Jr., Onondaga Pottery Co., 2900 Court St., Syracuse, N. Y. Brinkman, Robert J. (J), 3209 Wayne Ave., Dayton 10, Ohio Bristow, J. S., William Jessop & Sons, Ltd., Brightside Works, Sheffield, England Bristow, Robert H.,1 530 Fairlawn ,Dr,, Urbana, 111. Britcher, Gordon, 306 Berkeley Dr., Syracuse 10, N. Y. Roster 5 le heat-j 10 dirt,| u plica-] batch.! ot kilns ers will * mpany, .letiN itish Ceramic Society, North Staffordshire Technical Col*1 ,,c, Stoke-on-Trent, England ,, :.rlni Clifford G. (S), Hox 1307, Clemson, S. C. Britton, Marvin G. (S), 139 Steuben St., Painted Post, N. Y. Rrockway Glass Co., Inc. (F. B. Hess), Brockway, Pa. crnoke. Stanley, Oughtibridge Silica Firebrick Co., Ltd., ^ Oughtibridge, Sheffield, England Brooks, Robert H., 4380 Harmon Rd., El Sobrante, Calif. Rroomhall, Vincent,* Continental Kilns, Inc., Box 755, East Liverpool, Ohio Brosius, John P., 403 Emerson Ave., Aspinwall, Pittsburgh D 15, PaBroske, William F., Aircraft-Marine Prods., Inc., 323 S. Cameron St., Harrisburg, Pa. Rrown, Colin C., 21 Medbury Ave., Cuba, N. Y. Brown. Donald Nicol, 4 E. Third St., Corning, N. Y. grown, Donovan P., 420 Curtis Bldg., 2842 W. Grand Blvd., Detroit 2, Mich. Brown, George R., North American Mfg. Co., 4455 E. 71st St., Cleveland 5, Ohio Brown, John J., Jr.,t c/o Moland-Drysdale Corp., Henderson ville, N. C. Brown, Joseph A., Baltimore Brick Co., 3200 E. Madison St., Baltimore 5, Md. Brown, Lawrence H.,*l Box 632, East Liverpool, Ohio Brown, Leslie, Lenox Inc., Trenton 5, N. J. Brown, Meredith C., 9500 S. Norwalk Blvd., Los Nietos, Calif. Brown, Raymond G., Comstock & Wescott, Inc., Box 835, Niagara Falls, N. Y. Brown, Raymond J. (J), 1930 S. Scoville, Berwyn, 111. ; Brown, Roy W., 3842 Grennoch St., Houston 25, Texas Brown, Wilbur F.,* Libbey-Owens-Ford Glass Co., Rossford, Ohio Brown, William E., 1966 Clearview Ave., Norristown, Pa. Browne. Thomas C., Box 246, Alexandria, Pa. Brownell, Wayne E., 126 Hornell St., Hornell, N. Y. Brueggerhoff, Charles (J). Mexican Zinc Co., N. Rosita, Coahuila, Mexico Brummer, George M. (S), 965 Sweet Home Rd., Williamsville 21, N. Y. Brunner, Cedric D., 2223 Table Dr., Golden, Col. Brunning, Ernest J., Consumers Glass Co., Ltd., Box 210, Sta. B, Montreal, Que., Canada Bruno, Lucien V., Federal Seaboard Terra Cotta Corp., Perth Amboy, N. J. Brush, George D.J 35 E. Gay St.. Rm. 413, Columbus 15, Ohio Bryant, Albert D., Standard Silica Corp., Box 407, Ottawa, III. Bryant, Eugene E.,*t Ferro Corp., 4150 East 56th St., Cleve land 5, Ohio Buchan, M. A.j 325 South St., Benton, Ark. Buck Glass Co. (Royden A. Blunt), Fort Ave. & Lawrence St., Baltimore 30, Md. Buck. Ivan E., Jr.. 300 Greenwood Ave., R. R., Cape May, N. J. Buckles, Paul E.,t 431 Water St., Tiffin, Ohio Buckner, O. S.J Bay State Abrasive Products Co., Westboro, Mass. Buehler, Bert P., 2439 Torrington Ave., Parma 29, Ohio Buessem, W. R., School of Mineral Industries, State College, Pa. Buffalo Pottery, Inc. (R. E. Gould), 25 Hayes Place, Buffalo 10, N. Y. Builders Brick Co. (C. A. Houlahan), 3800 Ninth Ave., S.. Seattle, Wash. Buktas, Bulent, The Siimerbank, Ankara, Turkey Bullard, Edward R., B. F. Drakenfeld & Co., Inc., Washing ton, Pa. Bunge, Fred H., The M. A. Hanna Co., Research Laboratory, Hibbing, Minn. Burch, Oscar G.,* Owens-Illinois Glass Co., Box 1035-1036, Toledo 1, Ohio Burchenal, Charles H., Cambridge Tile Mfg. Co., Box 71, Cin cinnati 15. Ohio Burchfiel, B. M.,*t 4458 Westmoreland Court. Riverside. Calif. Burchfield, Paul E., Wyandotte Chemical Corp., Wyandotte, Mich. Burdick, Milton D.J Porcelain & Pottery Section, National Bureau of Standards, Washington 25, D. C. Burdick, Robert B,, Speer Carbon Co.. Theresa St., St. Marys, Pa. Burdick, Sidney D., 104 Argonne St., Corning, N. Y. Burgess. Blandford C.,* Dent, of State Mail Room, D.M.P.A. Johannesburg, South Africa, Washington 25. D. C. "Urgner, Arthur J., Canadian Potteries, Ltd., St. Johns, Que., Canada Burke, L. Roger, 1203 Peoples Bank Bldg., Pittsburgh 22, Pa. Bmke, O. W,, Jr., 11281 E. Nine Mile Rd., Van Dyke, Mich. Burkhalter, Edward,! 7219 Interlaaken Dr., Tacoma 9, Wash. Burks, Cecil M., Jr. (J),t Apt. 2D, 424 Benton St., Joliet, 111. vOL. .22, No. 10 (1953) Burley, Frank N., 520'W. Ricketts St., Kokomo, Ind. Burley, Newton R., 1864 Dresden Rd., Zanesville, Ohio Burlingame, Howard G., California Metal Enameling Co., 60904 E. Slauson Ave., Los Angeles 22, Calif. Burnand, Guy M. (Life), Messrs. Johnson, Matthey & Co. Ltd., 78, Hatton Garden, London E. C. 1, England Burnett, W. A., Calicut, Malabar, S. India Burns, Frederick L., 1777 Norwood Blvd., Zanesville, Ohio Burns, Henry K., Jr., 1620 Waverland Dr., Macon, Ga. Burns, R. S., Armco Steel Corp., Research Library, Middle- town, Ohio Burriss, William K., Rm. 713, Caxton Bldg., 812 Huron Rd., Cleveland 15; Ohio Burroughs, F. H., Box 1329, Trenton 7, N. J. Burton, Howard B., 1618 Arlington Ave., St. Paul 6, Minn. Burton, W. A., 803 E. Fourth St., Mt. Pleasant, Texas Burwinkel, Lawrence G., Jr., Pennsylvania Glass Sand Corp., 140 Stanwix St., Pittsburgh 22, Pa. Bush, Edward A. (S), 241 Sherman Ave., Vandergrift, Pa. Bush, James W.J 2531 Brownsville Rd., Pittsburgh 10, Pa. Bushong, R. M., National Carbon Co., Tiffin & Town Sts., Fostoria, Ohio Busteed, Donald J.,1 8 Janet Circle, Shrewsbury, Mass. Butcher, L. H., Co. (Everett S. Bissell), 3628 E. Olympic Blvd., Los Angeles 23, Calif. Butcher, William T., "Woodgarth," Stamford Brook Ave., London W. 6, England Butkovich, Edward M., 9000 Buffalo Ave., Chicago 17,. 111. Butler, C. Edward, Jr.,f Line Material Co., Illinois Electric Porcelain Plant, Macomb, 111. Butler, F. W., Akron Porcelain Co., Akron 14, Ohio Butler, John, Ossipee, N, H. Butler, Mike W., Box 816, Austin 64, Texas Butler, Thomas J., Jr., Box 279, Austin 2, Texas Buttle, Robert L., Ill Bayview Dr., Absecon City, N. J. Buzard, Fred T., Bell, Pine & High Sts., Plymouth, Ohio Byrns, Alva C., Director of Chemical Research, Kaiser Alumi num & Chemical Corp., 1924 Broadway, Oakland 12, Calif. C C., Jerman Johannsen, c/o Cristal Yungay, Weir, Scott & Cia. Casilla 73-D., Santiago, Chile Cabanie, Lucien, E Japy Freres, Fesches-Le-Chatel, (Doubs) France Cable, John A., 1011 22nd St. N. E., Canton 4, Ohio Cable, Margaret,* 1520 San Miguel Ave., Santa Barbara, Calif. Cable, Stephen J., 811 28th St. N. E., Canton, Ohio Godfrey L. Cabot, Inc. (Frank E. Daley), 769 Independence Ave., Trenton 10, N. J. Cahoon, G. J.,t Knox Porcelain Corp., Knoxville 11, Tenn. Cahoon, Harold P. (S), 1555 E. 3350 South, Salt Lake City, Utah Caito, A. M., Basic -Refractories, Inc., Maple Grove, Ohio Cala, Charles F., 144 Hoover Rd., Rochester 17, N. Y. Calderwood, F. Wayne, 227 N. Sheldon Ave., Ames, Iowa Caldwell, Helen, Administration Bldg., 1429 W. Seventh, Bur lington, Iowa Caldwell, Smiley, Jr., Rolland Glass Co., Clarksburg, W. Va. Caldwell, William D.,1 Perfection Stove Co., 1135 Ivanhoe Rd.. Cleveland, Ohio Callahan, H. D.,*t U. S. Quarry Tile Co., East Sparta, Ohio Callinan, Edward E.,*t 24 E. Fornance St., Norristown, Pa. Cambridge Glass Co. (William C. Orme), Cambridge, Ohio Cameron, Robert Ayre, Corning Glass Works, Corning, N. Y. Campbell, C. V., 444 Florida Ave., Chester, W. Va. Campbell, Edward S., Northwestern Glass Co., 5801 E. Mar ginal Way, Seattle 4, Wash. Campbell, G. Donald, Pittsburgh Plate Glass Co., Wks. #50, Shelbyville, Ind. Campbell, Ian, California Institute of Technology, Pasadena 4, Calif. Campbell, Robert J., Jr. (S), 716 16th Ave. N., Seattle 2, Wash. Campbell, Robert M.,*t Alfred. N. Y. Campbell, Tom W., Box 255. Poland, Ohio Campbell, Van E., 363 Highland Ave.. Wadsworth, Ohio Campos, F. Torres, Puerto Rico Clay Products Co., Box 4729, San Juan, Puerto Rico Canadian Ceramic Society, Miss L. C. Keith, 49 Turner Rd., Toronto 10, Ont., Canada Canfield, J. J.,* 2909 Orlando Dr., Middletown 20, Ohio Canning, Robert, 202 Fox Chapel Rd., Pittsburgh 15. Pa. Capellman, John J., 1118 Highland St., Tarentum 1, Pa. Caopelli, Louis A. (S), Theta Xi House, 179 Fourth St., N. W., Atlanta, Ga. Capps, Hubert, 1108 W. Third St., Coffeyville, Kan. Capps, Webster, National Bureau of Standards, Washington 25, D. C. Carborundum Co. (H. C. Martin), Niagara Falls, N. Y. Roster 9 CarJcr/ Frederick* (Honorary), Steuben Div., Corning Glass ' Works, Corning, N. Y. r rey, J- Sheldon, Dept, of Design, University of Kansas, Lawrence, Kan. _ | John E. (J), Corning Glass Works, Box 544, Corning, Y. r rlen, Solve, Bolidens Gruvaktiebolag, Centrallaboratoriet, gkelleftenhamn, Sweden ,-.,rLon. Joseph A.. 50 Hawthorne St., San Francisco 16, Calif, (irlson. William G.,+ 1452 Penn Ave., Pittsburgh 21, Pa. rirlvie, Edward C., Box 128, 1 ronton, Ohio rjrnahan, Thomas D. (J), B. F. Drakenteld & Co. Inc., Box 1 ;iy Washington, Pa. Nrnes, Kenneth C., 2643 Wesleyan Drive, Toledo 14, Ohio Carnes, Samuel J., Camark Pottery Co., Camden, Ark. Caro, Robert, Hedi Schoop Art Creations, Box 384, North Hollywood, Calif. Carothers, Harry S., H. C. Spinks Clay Co., 1000 First Na tional Bank Bldg., Cincinnati 2, Ohio Carothers, R. B.,* H. C. Spinks Clay Co., Inc., Box 829, Paris, Tenn. Carothers, Richard B., Jr., Box 829, Paris, Tenn. Carothers, T. E., 1700 Devereaux Dr., Burlingame, Calif. Carpenter, F. Scott, Jr., White Pigments Div., Godfrey L. Cabot, Inc., 77 Franklin St., Boston, Mass. Carr, Robert E. (J), 414 N. High St., Lancaster, Ohio Carr.-Lowrey Glass Co. (Norman R. Beck), Baltimore 3, Md. Carroll, Joseph, Physics Dept., Marquette University, 1131 W. Wisconsin Ave., Milwaukee 3, Wis. Carroll. William F.. 3499 McNally Ave., Altadena, Calif. Carruthers, John L.,*t Lord Hall, Ohio State Univ., Columbus 10, Ohio Carter, F. B.,t Tiffin 12, Ohio Carter, Gerard T., Horizons, Inc., 2891 E. 79th St., Cleveland; Ohio Carter, Herbert D.,*t 3351 Dorchester Rd., Shaker Heights 20, Ohio Carter, J. Guild, 190 W. State St., Trenton, N. J. Cartwright. S. V.. 1224 Victoria Ave., Corona, Calif. Casamo, Charles C., Sylvania Electric Products, Inc., Em porium, Pa. Case, V. B., Paper Makers Importing Co., Inc., 44 S. Second St., Easton, Pa. Case, W. A., & Son Mfg. Co. (Willard G. Young), Robinson, 111. Cassady. Bert L,, 5115 S. Lewis Ave.. Tulsa 15, Okla. Castany, Charles I. (S), 4ta. Ave. N. E,, No. 604, Managua, D. Si. Nicaragua, Central America Casterline. Dale R. (S), 243 Imperial Ave., Painted Post, N. Y. Cather, Helen F., Box 2372, Laguna Beach, Calif. Caton, Milton W., 22490 Nevada Ave., East Detroit, Mich. Cauthorn, James E. (S), R. R. 4, Mexico, Mo. Cavanaugh, D. J.,t 822 32nd St., Parkersburg, W. Va. Cawood, Richard L., East Liverpool, Ohio Cayford, James M.,t Glascote Products, Inc., 20900 St. Clair Ave., Cleveland 17, Ohio Cecil. Paul S., c/o Seaporcel Metals, Inc., 28-20 Borden Ave., Long Island City 1, N. Y. Central Glass & Ceramic Res. Institute (Atma Ram), Jadavpur College, Calcutta 32, India Central Silica Co. (E. C. Sawyer), 806 Market St., Zanesville, Ohio Ceramic Assn, 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. Cermak, Frank,* 1542 Union St., Schenectady 8, N. Y. Cerny, Joseph J,, 5226-28 W. 26th St,, Chicago 50 (Cicero), 111. Cerulli, Nicholas F. (S), 267 Upson Lane, University Heights, New Brunswick, N. J, '-hadeyron, A. A. G., Cleveland Magnesite & Refractory Co., Ltd., Normanby Brickworks, Normanby, Middlesbrough, _'rk, England Lhamberiain, James M. W,, Box 350. Akron 9, Ohio chambers, Gordon H., 18 W. Chelten Ave., Philadelphia 44, Pa. Ehamhers, J. Fred. National Gypsum Co.. Luckey, Ohio champion Spark Plug Co., Ceramic Div. (Frank H. Riddle), 8a25 Butler Ave., Detroit 11, Mich, chandler, Keith B,, 3160 W. 106th St., Cleveland 11, Ohio hantler, L. W., Standard Lime & Stone Co,, Millville, .W. Va. L'hamnan, Frank E,, Jr. (S), 5905 Hamilton Ave., Baltimore 6; Md. harbonnier, William P., Walsh Refractories Corp., 101 berry St., St. Louis 7, Mo. X^y1C'' ^)' `^'r Force Project, Box 722, Alfred, Fhase, Dana,* 360 N. Michigan Ave., Chicago 1, 111. VL- 32, No. 10 (1953) Chase, Harry K., 4040 Lakeshore Ave., Oakland, Calif. Chattanooga Glass Co. (Joe G. Venable), Chattanooga 10, Tenn. Chatterjee, Akhil Chandra, Messrs. Burn & Co. Ltd., Raniganj. Dist., Burdwan, India Chaumeil, Frederic, Verreries de Bagneaux et Appert Ferres, Bagneaux s/Loing, Seine et Marne, France Chesler, Isidor, 710 E. 14th St, New York 9, N. Y. Chester, A. E., Promat Div., Poor & Co.. 851 S. Market St., Waukegan, 111. Chesters, John H.,* United Steel Co., Ltd., Research & De velopment Dept., "Swinden House," Moorgate, Rotherham, York, England Chicago Hardware Foundry Co. (G. O. Claeyssens), North Chicago, 111. Chicago Pottery Co. (J. S. Clifford), 1920 Clybourn Ave., Chicago 14, 111. Chicago Vitreous Enamel Product Co. (William Hogenson), 1427 S. 55th Court, Cicero 50, 111. Chilcote, Joseph H., 1907 16th St. N., Arlington 1, Va. Child, J. L., Hancock Brick & Tile Co., Box 59, Findlay, Ohio Childs, Clayton G., (S), 2321 S. York St., Owensboro, Ky. Childs, Edwin E., Jr.. (J), Owings Mills, Md. Childs, H. W., United Feldspar & Minerals Corp., West Paris, Me. Ching, Tung Rey (S), 1008 W. Oregon, Urbana, 111. Chiochetti, Vincent, 32 Oak Square, South Attleboro, Mass. Chisholm, Boyd & White Co. (B. T. Brennan), 610 W. 57th St., Chicago 21, 111. Chiu, Hung-Wen, 204 Hudson Ave., Newark, Ohio Chormann, O. I., 195 Gregory Hill Rd., Rochester, N. Y. Christensen, Carl J., College of Mines & Mineral Industries, Univ. of Utah, Salt Lake City, Utah Christensen, Chr., Den Kongelige Porcelainsfabrik & Fa- jancefabriken Aluminia A/S, Smallegade 45, Copenhagen F., Denmark Christie, Leonard D., Jr., 343 Sound Beach Ave., Old Greenwich, Conn. .Christman, Brian B., 25 Eggert Ave., Metuchen, N. J. Christman, C. E., Federal Enameling & Stamping Co., Pitts burgh, Pa. Christman, H. M.,t 1023 Roosevelt, N. E., Massillon, Ohio Christopher, A. B., Chambers Bros. Co., 52 & Media, Phila delphia, Pa. Chu, Gordon P. K. (S), Res. Lab., Pfaudler Co., 1000 West Ave., Rochester 3, N. Y. Chun, Lee, 230 Prince Edward Rd., Kowloon, Hongkong, China Chung, Heung-Sung, Messrs. Yick Lee, 128 Bonham Strand East, Hong Kong, China Cichowski, Val J., The Fusite Corp., 6000 Fernview Ave., Cincinnati, Ohio Ciprari, John L. (S), Box 1040, Ga. Tech. Atlanta, Ga. Claeyssens, G. O., Chicago Hardware Foundry Co., North Chicago, 111. Clare, Robert L.,*t 212 Rector St., Perth Amboy, N. J. Clark, Alec W., Beatson, Clark & Co., Ltd., Rotherham, England Clark, C. Burton, 113 DeArment Parkway, Pittsburgh 28, Pa. Clark, Horace N., Refractory & Insulation Corp., 120 Wall St., New York 5, N. Y. Clark, John D.,t 656 Lindley Rd., Glenside, Pa. Clark, John R., Jr., Washington Brick Co., Muirkirk, Md. Clark. Keith R., 120 Mains Ave., Apt. 2, Syracuse 7, N. Y. Clark, Richard E.,t The Sparta Ceramic Co., East Sparta, Ohio Clark, Roland J., Precision Grinding Wheel Co., Inc., 8301 Torresdale Ave., Philadelphia 36, Pa. Clark, Thaddeus J. E., 113 Elmore Ave., Trenton 9, N. J. Clarke, Ford K., Philco Corp., Church Rd., Lansdale, Pa. Claus, Carl, Jr., Babcock & Wilcox Co., 161 E. 42nd St., New York 17, N. Y. Claus, Karl M., 298 Main St., Matawan, N. J. Claycraft Co., Box 866. Columbus 16, Ohio Claypoole, Stewart A., R.R. 2, Painted Post, N. Y. Cleeves, George A., 198 High St., Reading, Mass. Clem. A. H., Pennsylvania Salt Mfg. Co., 1000 Widener Bldg., Philadelphia 7, Pa. Clemens, August, Jr., 205 E. Gittings Ave., Baltimore 12, Md. Clemens, Eugene C.,t Cannelton Sewer Pipe Co., Cannelton, Ind. Cleveland Museum of Art, William M. Milliken, Cleveland 6, Ohio Cleveland, Theodore K., Sixth & Grayson Sts., Berkeley 10, Calif. Clevenger, Thomas R. (S), U.S.S. Elokomin A.O.-55, F.P.O., New York, N. Y. Cleverly, Robert B., American Vitrified Products Co., Box 364, Sta. A, East Liverpool, Ohio Clews, Francis H., British Ceramic Research Assn., Queens Rd., Penkhull, Stoke-on-Trent, England Roster 11 fl'l /"i;fford, J- S., Chicago Pottery Co., 1920 Clybourn Avc., ^Chicago 14, 111. llte'rlift Robert E., Jr., Cove Rd., Stonington, Conn. TPriine I- R-> Western Brick Co., Danville, 111. iliriine' Robert W.,t 377 Main St., East Aurora, N. Y. H-'Cling30' J. R- T., Niles Fire Brick Co., 165 E. Park Ave., & Niles, Ohio r-niooer Diamond Tool Co., Inc. (Joseph Klipper), 21 W. 46th Jk- c. New York 36, N. Y. B'Vlose, Paul, Box 1035-6, Toledo, Ohio l> ("lough, Philip J., National Research Corp., 70 Memorial Dr., I"' Cambridge 42, Mass. e,Coates. Bill,* Coates Co., Box 935, Austin, Texas I Coble. Robert L. (S), Room 2-067, Massachusetts Institute of |L Technology, Cambridge, Mass. P Cocanougher, Robert S., 346 Claremont Ave., Jersey City 5, |; jif, J. if' Coen, Bernard, Woodbridge Sanitary Pottery Corp., 500 IP*. Green St., Woodbridge, N. J. Colleen. William W.,t 1024 Boulevard, Westfield, N. J. | Coffer, L. Wallace, Battelle Memorial Institute, 505 King Ave., If* Columbus l(<Ohio . Coffman, William N., Keystone Abrasive Wheel Co., Carnegie, I Pa. I-Cogen, Saul, Davidson Brick Co., 4701 Floral Dr., Los Angeles 1 22, Calif. ||| Cohen, Aaron, Box 405, Willamina, Ore. (Cohen, Arthur E., Sylvania Electric Products, Inc., Cottage Sv Place, Mineola, N. Y. If Cohen. Bernard, 20 Seneca Manor Dr., Seneca Falls, N. Y. i.Cohen, Joseph (S), 13044 Cedar Rd., Cleveland, Ohio pColcord. John E. (S), 29 S. St. Pauls Rd., Hempstead, N. Y. ICole, G. Percy, Dominion Glass Co., Ltd., Box 190, Montreal, fe.- Que., Canada pCole, Sandford S.,*t Titanium Alloy Div., National Lead Co., jjk Box 58, South Amboy; N. J. |Cole, Sandford S., Jr. (J), 3923 La Salle, Indianapolis, Ind. jlColeman, Caruthers A.,. 113 Cheapside, Lexington, Ky. $ Coleman, J. C., 3746 Mapleway Dr., Toledo 14, Ohio BlColeman, Robert L.,t 467 Dogwood, Park Forest, Chicago Heights, 111. jgColeman, Thomas B., 635 Tarboro St., Rocky Mount, N. C. jCollins, Paul F.,t Microcast Div., Austenal Labs., Inc., 7001 S. Chicago Ave., Chicago 37, 111. Sf.Collins. Robert, 151 Hackensack St., East Rutherford, N. J. RCollins, William G.,t Johns Manville Corp., Waukegan, 111. ftColonial Insulator Co. (R. W. Hemphill), 945 Grant St., Akron 11. Ohio j|Colosky, Benjamin P. (J), 137 Ford Ave.. Fords, N. J. (Colucci. George M., 2459 S. Seneca Ave., Alliance, Ohio | Columbia Fire Brick Co. (M. L. Hamaker), First National K Bank Bldg., Canton 2, Ohio fr Columbia-Southern Chemical Corp. (R. W. Miller), 420 Ft. S: Duquesne Blvd., Pittsburgh 22, Pa. s Comeforo, J. E., Box 141, Norris, Tenn. J Commercial Decal, Inc. (Alfred Duhrssen), East Liverpool, Ohio ign and i vital pad and easy] ent parts - i Commercialores, Inc. (Henry S. Doty), 39 Cortlandt St., New York 7, N. Y. |r Commons. Charles H., Jr.,*t Foote Mineral Co., Berwyn, Pa. S GjlTPagnucci, Julius P., The Bay Ridge Specialty Co., Inc., sj- Trenton 6, N. J. f-Compania Mexicana De Refractarios, A. P. Green, S. A. (H. Better), Tlalnepantla, Apartado No. 71-Bis, Mexico 1, D. F. Mexico ft Conard, John B., 600 Hawthorne Lane, Mansfield, Ohio Condon, Edward U., 140 High Rd., Corning, N. Y. Cone, Carroll, 1387 Virginia Ave., Columbus 12, Ohio Conn, Willi' M., 6312 Indiana Ave., Kansas City 5, Mo. ?,'l. George A., Pacific Coast Borax Co., Box 9128 Station S, ' Los Angeles 5, Calif. GENTS: J roll & Son ibra Ave^ 32, Califl Connelly, Daniel S., 2801 N. Park Blvd., Cleveland Heights 18, Ohio Conover. Ray C.F Gladding, McBean & Co., 2901 Los Feliz Blvd.. Los Angeles 39. Calif. Conrad, Charles E,, Jr., Libbey-Owens-Ford Glass Co., 1701 E. Broadway, Toledo 5, Ohio Conrad, Keith, Owens-Illinois Glass Co., 1700 N. Westwood, n lo'edo, Ohio ^unroe, Barden A. (J), 60 E. Fourth St. Corning, N. Y. "nsolidated Glass Works, Ltd., (I. Donen), Box 562, Ger^tuiston, Transvaal, South Africa i0nstans, Eldon G., 305 E. 11th Ave., Apt. 1, Columbus 1, Ohio Lusumers Glass Co., Ltd., (John N. Jordan), Box 456, Sta. B, -lontreal, Que., Canada ntardi, William A.,t 45 Chester Circle, New Brunswick, N. J. k Mfg. Co. (Edgar H. Freeman), Box 157, Walnut, Calif. '<, Eugene M.. 509 Broadlawn Terrace, Vineland, N. J. :c BtjlletII Vi- 32, No. 10 (1953) Cook, Herman L.,* 1555 Beardsley Ave., Muskegon, Mich. Cook, Leslie J., 1621 Reliez Valley Rd., Lafayette, Calif. Cook, Ralph L.,* 204 Ceramics Bldg., University of Illinois, Urbana, 111. Cook, W. Howard, Box 131, Norris, Tenn. Cooke, David CJ (J), 25 Chestnut St., Haddonfield, N. J. Cooke, Robert S., Industrial Centre #5, Quebec, Que., Canada Cooke, William C., Blue Ridge Glass Corp., Kingsport, Tenn. Coombs, W. M., Owens-Illinois Glass Co., Bridgeton Plant No. 14, Bridgeton, N. J. Cooper, Alfred R., 156 Dauntless Lane, Hartford, Conn. Cooper, George I., 401-Mackley Apts., Philadelphia 24, Pa. Cooper, Walter W., Dow Chemical Co., Midland, Mich. Cooper, William G., 2716 Eldorado St., Apt. D., Torrance, Calif. Coors Porcelain Co. (H. W. Ryland), Golden, Col. * Cope, William E., Barclay Machine, Inc., Box 146, Sebring, Ohio Copeland, G. G., Golding Keene Co., Keene, N. H. Corbett, Keith T. (S), 22-F Vetville, Raleigh, N. C. Corbett, Paul M., Dept, of Chemical Engr., University of Toronto, Toronto, Ont., Canada Corbman, Morriss, Glen Gary Shale Brick Corp., Van Reed Rd., Wyomissing, Pa. Cordes, John E., 2017 Sheridan Ave. S., Minneapolis 5, Minn. Corhart Refractories Co., Inc. (Frederick S. Thompson), 16th & Lee Sts., Louisville 10, Ky. Corning Glass Works (J. T. Littleton), Corning, N. Y. Cornish, Frank L., Corning Glass Works, Charleroi, Pa. Cornwell, George L., 171 Eiseman, Kenmore 17, N. Y. Corson, Robert (S), 4 Daniel St., Seneca Falls, N. Y. Corwin, Rudolph E., Applied Physics Lab., 1013 E. 40th St., Seattle 5, Wash. Cote, A. U., Cooksville Co., Ltd., Cooksville, Ont., Canada Cotton, Nigel, Elijah Cotton Ltd., Nelson Pottery, Hanley, Stoke-on-Trent, Stafford, England Cotton, Robert A., General Refractories Co., 1180 E. Broad St.. Elizabeth, N. J. Couch, Albert H.,t Libbey-Owens-Ford Glass Co., 1701 E. Broadway, Toledo 5, Ohio Coughanour, L. W., 5515 Oakmont Ave., Bethesda 14, Md. Counts, Jack E., 9506 Gorman Ave., Cleveland, Ohio Counts, William E., 1649 Euclid Ave., Flint, Mich. Courter, R. F., Globar Div., Carborundum Co., Niagara Falls, N. Y. Courtney, Scott J., B. F. Drakenfeld & Co., 45--47 Park Place, New York 7, N. Y. Courtright, John H. (S), Box 257, Alfred, N. Y. Covan, H. E., 400 20th Ave., Columbus, Ohio Cowan, J. G., "Roselands," Billington, Haughton, Stafford, England Cowan, R. Guy,* 416 Brooklea Dr., Fayetteville, N. Y. Cowan, Robert E. (S), 903 W. Green St., Urbana, 111. Cowell, J. Robert, Jr., Woodville Lime Products Co., 2140 Jefferson Ave., Toledo 2, Ohio Cowling, Kenneth W., 79 Norwood Rd., Sheffield 5, England Cox, Edwin H., 20111 Wickfield Ave., Cleveland 22, Ohio Cox, John-E. (S), The Horse Head Inn, Palmerton, Pa. Cox, Paul E.,* 520 N. Tenth St., Baton Rouge 8, La. Cox, Samuel F., Pittsburgh Plate Glass Co., Research Lab., Creighton, Pa. Cox, Shaun M., J. A. Jobling & Co., Ltd., Wear Glass Works. Sunderland, Durham, England Coy, John J., Gen. Del., Oakville, Ont., Canada Craft, R. S., Findlay Clay Products Co., Washington, Pa. Craig, Bruce G., 2706 N. 40th, Milwaukee, Wis. Craig, David M., Jr., 420 Ft. Duquesne Blvd., Pittsburgh 22. Pa. Craig, James E., 1055 Allison Ave., Washington, Pa. Craig, James W., Canadian Refractories, Ltd., 1050 Canada Cement Bldg., Montreal 2, Que., Canada Craig, John D., Jr., Pennsylvania Pulverizing Co., 1418 Tren ton Trust Bldg., Trenton 8, N. J. Cramer, W. E.,*t Industrial Ceramic Products, Inc., 965 W. Fifth Ave., Columbus 8, Ohio Crandall, Eugene R.,+ 258 Gulf St., Milford, Conn. Crandall, James R.,t 4514 Chestnut St., Bethesda 14, Md. Crandall, William B., Box 707, Alfred, N. Y. Crandon, A. S., American Window Glass Co., 9 W. Park Way, Pittsburgh 12, Pa. Crane Co. (W. M. Hamilton), Chattanooga Div., Chattanooga, Tenn. Crane, Robert F., Country Club Estates, Kittanning, Pa. Crawford, George E.,*t 221 Sumner Ave., New Castle, Pa. Crawford, George S., Research Council of Alberta, University of Alberta, Edmonton, Alta., Canada Crawford, J. C., Jr., Johns-Manville Sales Corp., 22 E. 40th St, New York 16, N. Y. Crawford, J. L.,* 740 Brittany Lane, University City 24, Mo. Roster 13 Treed Michael B., 63 Marvel Rd., New Haven, Conn. * Treson. Walter F,, Babcock, & Wilcox Co., 1220 National City ` Bank Bldg., Cleveland 14, Ohio ress, William C., Carolina Ceramics, Inc., R. R. 3, Columbia, S. C. S. r.essy, Morton, Hartford-Empire Co., 333 Homestead Ave., 7 Hartford 2, Conn. k Trjder, Paul H., 179 Howard St., Pittsburgh 35, Pa. s. A. Cristalerias Del Uruguay (Francisco J. Gercar), Comer- . 'c;0 1491, Montevideo, Uruguay Crockett, William E., 1215 N. Arlington Ave., Indianapolis, Ind. Cronin China Co., Minerva, Ohio Cronin, David I., Univis Optical Corp., Box 717, Guayama, Puerto Rico Cronin, Leo J., 56 MacArthur Rd., Natick, Mass. Cronin, Neil E., Cronin China Co., Minerva, Ohio Cronin, W. Kress, Minerva, Ohio Croninger, George J., A. J. Wahl, Inc., Brocton, N. Y. Cronn, Eduard, Steingutfabrik Schwarzwald, G.M.B.H., Hornberg (Schwarzwaldbahn), Germany % Crook, Charles E., Los Angeles Chemical Co., 1960 Santa Fe !' Ave., Los Angeles 21, Calif. - S Crookston, James A.J 28 Alton Dr., Pittsburgh 34, Pa. t Crooksville China Co. (Harry J. Bennett), Crooksville, Ohio i Groom, Milton M., 2OP/2 Groveland Ave., Raleigh, N. C. J Crosby, Donald P. (J), Harbison-Walker Refractories Co., 7 Fulton, Mo. / Croskey, Carl D., 2061 Morrow Ave., Schenectady 9, N. Y. \ Cross, A. H. B., The Brown-Firth Research Lab. Princess St., - Sheffield 4, York, England Crossan, W. A., The Metropolitan Brick, Inc., 1017 Renkert 7 Bldg., Canton 2, Ohio Crossley Machine Co. (William J. Harris), Trenton 9, N. J. : Crowe. Samuel H. Jr., 300 Jefferson Ave., Crystal City, Mo. Crowley, Henry L., 1 Central Ave., West Orange, N. J. X- Crowley, Michael S. (S). 127 Dogwood St., Park Forest, 111. Cruikshank, C. L., Great Lakes Foundry Sand Co., 720 United Artists Bldg., Detroit 26, Mich. Cummins, Arthur B.. Morning Glory Rd., Bound Brook, N. J. L Cummins, Robert K., General Electric Co., 1133 E. 152nd St., Cleveland 10, Ohio Cunliffe, J. A., 266 Seventh St., Medicine Hat, Alta, Canada * Curcio, Anthony L., 21 Church St., Bound Brook, N. J. '.Curran, Edward, Engineering, Ltd., (D. Ryan), Cardiff, Wales /Curran, Martin T. (S), Box 562, Alfred, N. Y. /Curran, Robert,! 75-08 35th Ave., Jackson Heights 72, N. Y. : Curtis. A. B.. Johns-Manville Sales Corp., 832 Fisher Bldg., Detroit, Mich. V Curtis, Carl E.,t 404 W. Vanderbilt Dr., Oak Ridge, Tenn. /; Curtis, William H,, Jr. (S), 59 Crosbv St. Hornell, N. Y. -- Curts, R. M., American Potash & Chemical Corp., 122 E. z 42nd St., New York 17, N. Y. |/ Cuthill, John R., Enameled Metals Section, National Bureau of Standards, Washington 25, D. C. Cutler, Ivan B,, 220 Mines Bldg., University of Utah, Salt Lake City 1, Utah. Czarnecki, Kamil B., 75 Queen's Gate, London, S. W. 7, England 1/ Czechoslovak Ceramic and Glass Society, R. Barta, Praha XIX, Technicka ul.c. 5, Czechoslovakia D'Adrian, Vincent L. D., 7823 Kenridge Lane, Shrewsbury 19, Mo. ) Lager, Probert W.,*t 14743 Morrison St., Van Nuys, Calif. Dale, Alfred J., Johnson Bros. (Hanley) Ltd., Stoke-on-Trent, England Daley, Frank E., Godfrey L. Cabot, Inc., 769 Independence Ave., Trenton 10, N. J. Dalton, Robert H., 234 Delevan Ave., Corning, N. Y. Daly, Howard J., Jr. (S), 920 James Ave., Niagara Falls, N. Y. Damerell, Marguerite, Exton, Pa. . Danielson, P. R.,*t Metal & Thermit Corp., Carteret, N. J. -7 i:anks, William H., 216 Mississippi Ave., Crystal City, Mo. Darby, George M., 61 Washington Ave., Westport. Conn. Darrah, W. A., 901 N. Oak Park Blvd., Oak Park, 111. Das Gupta, A. K., Solar Mfg, Corp., 2903 E. Slauson, Hunting- ton Park, Calif. Daumke, Arthur H., 4451 N. California Ave., Chicago 25, 111. Dauwalter, A. C., W. S. Dickey Clay Mfg. Co., 607 Commerce _ Trust Building, Kansas City 6, Mo. Davey, Earl R., Canadian Ohio Brass Co., Ltd., Niagara halls, Ont., Canada Davey, Frederick K., Ashland Rd., Cockeysville, Baltimore County, Md. avies, Chester A.,t Park Lake Ave., Titusville, N. J. ^yies, Edward G., Dominion Glass Co., Ltd., Wallaceburg, Dnt., Canada VL. 32, No. 10 (1953) Davies, Thomas H., Mellon Institute, Fifth Ave., Pittsburgh, Pa. Davis Fire Brick Co. (D. D. Davis), Oak Hill, Ohio Davis, D. D., Davis Fire Brick Co., Oak Hill, Ohio Davis, Earl K., Bausch & Lomb Optical Co., Rochester, N. Y. Davis, Harry E.,*t Universal Potteries, Inc., Cambridge, Ohio Davis, H. M., Mineral Industries Bldg., State College, Pa. Davis, James K., 211 Walnut Sf., Elmira, N. Y. Davis, N. B., Rm. 512, 140 Wellington St., Ottawa, Ont., Canada Davis, Sam H., Jr., 808 N. Howard, Robinson, 111. Davison, Albert W., 1199 Moundview Ave., Newark, Ohio Day, Arthur L. (Honorary), 9113 Old Georgetown Rd., Bethesda 14, Md. Day, Charles M., 796 Arcade Bldg., 812 Olive St., St. Louis 1, Mo. Day, Frank, Jr., Corning Glass Works, Corning, N. Y. Day, Jack F.,t 835 Forest Ave., Zanesville, Ohio Day, Ralph K.,*t Libbey-Owens-Ford Glass Co., 1701 E. Broadway, Toledo 5, Ohio Day, Robert B.,t 516 S. Walnut St., Brazil, Ind. Deadwyler, Earnest W. (S), 61 Winthrop Rd., Columbus 14, Ohio Dear, Paul S.,*t Box 205, Blacksburg, Va. DeArman, C. R., The Bristol Co., Waterbury 20, Conn, de Azevedo, Marcello R. V.,t R. Peixoto Gomide 427, Bairro Bela Vista, Sao Paulo, Brazil Debenham, William S.J United States Steel Corp., 525 William Penn Place, Pittsburgh 30, Pa. Deeth, H. R., American Nepheline Corp., Lakefield, Ont., Canada de Felice, Ralph, 7 Bayside Dr., Great Neck, Long Island, N. Y. Deignan, Charles J.,t 120 N. Everett Ave., Columbus, Ohio Delahoy, David L., 8610 Bollier Ave., Niagara Falls, N. Y. de Leeuw, Peter, Central Post Office Box 323, Tokyo, Japan Delgado, Cyril B., 55 W..42nd St., New York 18, N. Y. DeLong, Hermon W., Ill, 67 Main St., Dansville, N. Y. Demaison, R. J., Quigley Co., Inc., 527 Fifth Ave., New York 17, N. Y. DeMaria, Vincent C., 10 Teamster Lane, Levittown, N. Y. Denting. William S., Jr., C. Tennant .& Sons of New York, 100 Park Ave., New York 17. N. Y. Demongeot, Henri, Interkiln Corp., 415 Lexington Ave., New York 17, N. Y. Demuth Glass Works, Inc. (Willard B. Midgette), Box 629, Parkersburg-/ W. Va. -Beiteen, W. F., North Carolina Feldspar Corp., Erwin, Tenn. Denero, John V. (S), Box 1-9, Alfred, N. Y. The Denison Engineering Co., (W. C. Denison), 1160 Dublin Rd., Columbus 16, Ohio Denison, George W.,* Box 1776, Cleveland 5, Ohio Denison, Norman E., Ohio Clay Co., Box 1776, Cleveland 5, Ohio Denison, W. C., The Denison Engineering Co., 1160 Dublin Rd.. Columbus 16, Ohio Den Kongelige Porcelainsfabrik & Fajancefabriken Aluminia A. S. (Chr. Christensen), Smallegade 45, Copenhagen F, Denmark Denman, Cedric E., Great Bend Brick & Tile Co., Inc., Box 53, Great Bend, Kan. Denny, Katherine, 1407 E. 45th, Seattle 5, Wash. deProsse, Victor A.,t 26431 Park Lawn Dr., Euclid 17, Ohio DeRemer. John W..t 501 Arizona Dr., New Kensington, Pa. Derge, Gerhard, Carnegie Institute of Technology, Pitts burgh 13. Pa. Deringer, W. A.,t A. O. Smith Corp., 3533 N. 27th St., Mil waukee, Wis. deRoux, Juan R.t (J), Box 1486, Panama, Rep. of Panama Desaix, Herbert A.,* 122 Jefferson Park Dr., Huntington, W. Va. Desenne, Claude M. (J), Cote de l'Eglise, Boischatel, Co. Mont morency, P. Q., Canada Desjardins, Gregory T,, Foster, Ky. Detamore, Walter A., Barium Reduction Corp., South Charles ton 3, W. Va. Deurvorst, F. B. M., Het Zonnehuis, Terborg, Holland Deutsche Glastechnische Gesellschaft, H. Maurach, Untermainkai 12, Frankfurt A. M., Germany Deutsche Keramische Gesellschaft, Mr. Knauf, Poppelsdorferallee 15, Bonn, Germany Deutscher, Jerome S.,t (J), 525 W. Buist, Phoenix, Ariz. de Vasconcellos, Antonio, Ceramica Martini S/A Rua Luiz Martini, s/n, Mogi Guacu, Est. de, S. Paulo, Brazil DeVilbiss Co. (E. F. Frey), Toledo 1, Ohio DeVoe, Charles F., 38 W. Fourth St., Corning, N. Y. Devol, Lee, Hamilton Watch Co., Lancaster, Pa. Roster 15 ! AND . TILE *ATU RE STING IELAIN TIFICAL TONE r STEATITE gh every a matter xed. problem Simpson ceramic Dew Robert J., Jr., c/o Research Dept., American Lava Corp., V Chattanooga, Tenn. newey, B. F., 42 Summit St., LeRov, N. Y. nesheimer, E. C., 917 Country Club Dr., St. Louis 2, Mo. Diamond Alkali Co. (L. T. Welshans), Painesville, Ohio Diamond, Grant S.,*t Electro Refractories & Abrasives Corp., 344 Delaware Ave., Buffalo 2, N. Y. Diaz, Jose JM Fabrica Nacional Loza de Penco, Penco, Chile nick', Clarence H., Gordon St., Natrona Heights, Pa. nick' Edward F., Westinghouse Electric Co., Horsehcads, N.'V. Dickas, Charles H., 1524 Sunset Rd., Chattanooga, Tenn. Dickens, H. A., Nilsen Porcelains (Aust.) Pty., Ltd., 221 Separation St., Northcote, Victoria, Australia Dickey, Herbert R., 26 Regent St., St. Thomas, Ont., Canada Dickey, John M., Jr.,t 179 Franklin Ave., Brookville, Pa. Diener, Leonard W., Cuthbert & Park Ave., Collingswood, N. J. Dietert, Harry W., 9330 Roselawn Ave., Detroit 4, Mich. Dietrich, Waldemar F., 1230 29th St. N.W., Washington 7, D. C. Dietterle, Edwin W,, 3834 Monteith Dr., Los Angeles 43, Calif. Dietzel. Adolf, Max-Planck-lnstitut fitr Silikatforschung, Wurz burg, Germany, Neunerplatz 2 Dilks. Bartram H., Jr., 604 Highland Ave., Latrobe, Pa. Dillender, Richard D. (S), Box 5786, Raleigh, N. C. Dilliard, Paul D., 1313 E. Wheeling St., Lancaster, Ohio Dillon, Zale, 56 Riverlawn Dr., Fair Haven, N. J. Dingledine. H. F,, National Sewer Pipe Co., Ltd., 330 Went. worth St. N.. Hamilton, Ont., Canada fi)ingledy. David, R.R. 3, Newark, Ohio .Dingier, Edward L., Jr., Box 363, Birmingham, Mich. Dingwall, Andrew, 325 Spring St., New York 13, N. Y. Dipped, L. V., 17 Second Ave., Tiffin 9, Ohio |; Dirats, Elwyn, 120 W. Silver St., Westfield, Mass. Distillator, Philip R., Jackson Vitrified China Co., 2 West St., J Pelham Manor 65, N. Y. Dithridge, Edward H., 60 Bedford St., Port Hope, Out.. J: Canada .Dixon, Anna Lane, 815 N. Fourth St., Burlington, Iowa Dixon, Gene, Kyanite Mining Corp., Cullen, Va. Dixon, Joseph, Crucible Co. (W. R. Wyckoff), 167 Wayne St., 3 Jersey City, N. J. jDlugozima, W. R.,t Box 332 Station A, East Liverpool, Ohio (^Dobbins, Norman E., Box 117, Vereeniging, Transvaal, IR South Africa |Dodd, Charles M.,*t Dept, of Ceramic Engineering, Iowa A State College, Ames, Iowa `..Dodge, Alfred W., Hazel-Atlas Glass Co., 126 Market St.. J4. Zanesville, Ohio P Dodson, W. E., Fire Brick Service & Supply, 900 E. 72nd St., fe". Cleveland 3, Ohio Doll, Charles E., Mt. Clemens Pottery Co., Mt. Clemens, Mich, gif Dominion Minerals, Inc. (V. V. Kelsey), Piney River, Va. f. Donahey, John W.,f Waynesborough Rd., Paoli, Pa. |-, Donen, I., Consolidated Glass Works, Ltd., Box 562, GermisS; ton, Transvaal, South Africa jfe Doney, Louis M., R. R. 1, Powell, Tenn. Donnenwirth, A. L.,T 522 E. Second St., Jamestown. N. Y. Dora, Joseph C.,t 3246 W. 62nd. PI., Chicago, IU. .. Doran, Robert F.,t Sylvania Electric Products, Inc., Cottage I' Pi., Mineola, N. Y. J..Dore, James E. (J), 2518 W. Euclid, Spokane 13, Wash, fkDrf. Arthur L., (SL 249 S. Pugh St., State College, Pa. ^v.Dorn, G.. Neal,! 1015 Kemp Ave., fronton, Ohio Dorney, Andrew W. (SL 32 Spalding Dr.. Corning. N. Y. Dorsett, O. A., Knox Porcelain Corp., Knoxville, Tenn. Dorsey, Baird L., 300 Walnut Rd., Pittsburgh 2, Pa. L "orsey, John J. (J), 385 Good Ave., Indianapolis 19, Ind. Joty, Henrv S.. Commercialores Inc., 39 Cortlandt St., New i ' ork 7, N. Y. f: Dougan, c. W,, 2025 Bellevue Dr,, Glendale 1, Calif, f f^ugherty, Leon A., 370 North St., Sun Prairie, Wis. j oughertv, Sylvester J., Metallurgical Dept., Weirton Steel s. Weirton, W. Va. rgherty, W. E.,* 1625 Barr Ave., Pittsburgh 5, Pa. E TTtIf'!as' Jbn, Co. (A. J. Raible). Cincinnati 16, Ohio ougias, Richmond, Douglas Firebrick Co., Ltd., Dairy. jAyrshire, Scotland 'vling, Robert F., Bausch & Lomb Optical Co., Glassmaking Uept., 635 St. Paul St., Rochester, N. Y. 12,e' Arthur D., The Clavcraft Co., Box 866, Columbus 16. ; 'Jhio ' D?ke- -Mary, The Evans Case Co., 21 East St., North Attle- Ubo,r. Mass. M. Ellis, Alfred University, Alfred, N. Y. kenfeld, B. F., & Co. (Scott J. Courtnev), 45-47 Park nce, New York 7, N. Y. VC 32, No. 10 (1953) Draker, Harry C., 24230 Maplewood Dr., Euclid 17, Ohio Drammena Glassverk, (Ragnar Tanberg), Drammen, Norway Draper, Perry E., Mansfield Sanitary Pottery, Inc., Perrys- ville, Ohio Dressier, Philip,1*t Swindell-Dressler Corp., Box 1888, Pitts burgh 30, Pa. Drouhard, W. J., Mansfield Sanitary Pottery, Inc., Perrysville, Ohio Drucker, Julius, Farbenfabriken Bayer, Krefeld-Uerdingen 22, Germany DuBois, H. B.,*t Consolidated Feldspar Dept., International Minerals & Chemical Corp.,. Erwin, Tenn. DuBois, Harold V., 4147 159th, Lawndale, Calif. Dubovick, Walter A., Engineered Precision Casting Co., Box 68, Matawan, N. J. Duckworth, Winston,! Battelle Memorial Institute, 505 King Ave., Columbus, Ohio Duevel, Charles O., Jr., American Thermos Bottle Co., Nor wich, Conn. Duff, R. D., 4318 Commonwealth, Toledo, Ohio Duffy, J. P., Stillwater Clay Products Co., Lock Drawer 32, Uhrichsville, Ohio Dufour, Jean Leonard, Ceramica Sanitaria Porcelite, Rua Itatnga 291, Caixa Postal 3845, Sao Paulo, Brazil Dugan, Robert T., (S), 2703 Rio Grande St., Austin, Texas Dugan, Stayner A., 1247 Vine St., Abilene, Texas Duhrssen, Alfred, Commercial Decal, Inc., East Liverpool, Ohio Duke, John J., Box 33, Saxonburg, Pa. Dulberg, Irving, 254 N. Allegheny St., Bellefonte, Pa. Dulin, Francis H. (S), 7728 Westmoreland Dr., Sarasota, Fla. Dunbeck, Norman J., International Minerals & Chemical Corp., 20 N. Wacker Dr., Chicago 6, 111. Duncan, J. Earle, Pittsburgh Plate Glass Co., Research Labo ratories, Creighton, Pa. Duncombe, George H., Jr.,* 150 E. Frambes Ave., Columbus i, Ohio Dungan, Robert! (J), 19 O'Connor Ave., Hornell, N. Y. Dunn, H. E., Vanadium Corp. of America, Bridgeville, Pa. Dunnican, Ward G., 277 E. Seventh St., Clifton, N. J. Duplin, V. J., Jr., 300 North Ave., Fanwood, N. J. du Pont, E. I., de Nemours & Co., Inc. (H. C. Kuchler), Electrochemicals Dept., Wilmington 98, Del. Durst, William A., 209 Madison St., St. Marys, Pa. Duwez, Pol, California Institute of Technology, Pasadena, Calif. Dyre, Warren T., 317 Estaugh Ave., Haddonfield, N. J. E Eagle, J. Eugene,*! 3202 McShane Way, Baltimore 22, Md. Eagle Picher Co. (O. P. Hense), American Bldg., Cincinnati 1, Ohio Earhart, William H., RCA Engineering Lab., Marion, Ind. Earl, Fred C. (S), Box 84, Broadalbin, N. Y. Earl, J. Alfred, 1621 S. El Molino St., Alhambra, Calif. East, Walter H., 1810 Tamerlane Dr., Glendale 8, Calif. Easter, George J.,*! Electro Refractories & Abrasives Corp.. Willett Rd., Buffalo 19, N. Y. Eck, Bernard J. (J), 1945 S. Glenwood, Springfield, 111. Eckel, Harold A.,. Trinidad Clay Products, Ltd., 44, South Quay, Port of Spain, Trinidad, B.W.I. Eckley, J. R., Aluminum Co. of America, 1501 Alcoa Bldg., Pittsburgh 19, Pa. Economos, George (S), 394 Riverway, Suite 9, Boston, 15, Mass. Edlin, Vernon, 6731 Paxton Ave., Chicago 49, 111. Edson, Sidney P., 20 N. Sixth St., Hudson, N. Y. Edwards, F. M., Porcelain Products, Inc., Carey, Ohio Edwards, J. B., 2220 Shorecrest Dr., Box 836, Dallas 1, Texas Edwards, William R. (S),t 11926 S. Saginaw Rd., Grand Blanc. Mich. Egerton, Lawson, Bell Telephone Labs., Inc., Murray Hill. N. J. Eggleston, Myron M.,t Beulah, Mich. Ehle, Jay C., 251 Buckingham Rd., Rocky River 16, Ohio Ehlers, G. Milton, 2206 E. Kensington Blvd., Milwaukee 11. Wis. Ehman, Roy G., 600 S. Allen St., State College, Pa. Eichenberger, Frederick J., Jr., R.R. 2, Horseheads, N. Y. Eide, Alwin C., American Zinc Sales Co., Box 327, Columbus 16, Ohio Eisenberg, Marvin (J), Armour Research Foundation, Tech nology Center, Chicago 16, 111. Eitel, Wilhelm, Institute of! Silicate Research, University of Toledo, Toledo 6, Ohio Eiwen, George E., 1947 Edgemont Dr., E. Petersburg, Pa. Ekdahl, W. Graydon, Johns-Manville Research Center, Manville, N. J. Roster 17 l-'kii'' 11 n' -143 Constitution Blvd., Boston, McKeesport, " Pa. elder J- C., Robertson Mfg. Co., Box 848, Trenton S, N. J. Electric Auto-Lite Co., Spark Plug Div. (Robert Twells), g0x 231, Fostoria, Ohio viectro Refractories & Abrasives Corp. (Grant S. Diamond), *344 Delaware Ave., Buffalo 2, N. Y. Eljer Co., Enamel-Ware Div. (L. A. Bateman), Salem, Ohio tjiefson, Bennett S., Sylvania Electric Products, Inc., 208-20 ' \Villets Point Blvd., Bayside, Long Island, N. Y. Flliott, A. W., Covered Wagon Ranch, Cloverdale, Calif. Elliott, G. F., 800 Rickett Rd., Brighton, Mich. Elliott, George, Bonnyside House, Bonnybridge, Stirling, Scotland Ellis, Arthur, "Lindenhurst," Adamthwaite Drive, Blythe Bridge, ' Stafford, England l-||U \V. H., Lamb Glass Co., Mt. Vernon, Ohio Ellison, Henry W., 12 E. Third St., Corning, N. Y. Ellison, R. W., 1551 E. Loma Alta Dr., Altadena, Calif. E- Elmer, Jack T., 14384 Lenray Lane, Los Gatos, Calif. Elmer, Thomas H., 219 E. High St., Painted Post, N. Y. ,,, Elosua, Bernardo, Apt. 360, Monterrey, N. L., Mexico Elston, Keith,t Hawthorne St., Lenox, Mass. Ely, William G., Pittsburgh Plate Glass Co., 2300 Grant Bldg., Pittsburgh 19, Pa. Emanuel, E. C., Armstrong Cork Co., Research Labs., Lan caster, Pa. Emhiser, Donald, 1105 Eighth Ave., Brackenridge, Pa. Emison, M. Hershel, Corning Glass Works, Charleroi Div., Charleroi, Pa. ^ Emlev, William S., West Maitland Lane, R.R. 3, New Castle, Pa. .Emmerich, Liberata, Pennsylvania State College, Mineral In` dustries Library, State College, Pa. Emrich, Allen H. (S), 1799 Franklin Ave., Columbus, Ohio Emrich, Emerson W.,t R. T. Vanderbilt Labs., East Norwalk, Conn. Emrich, Harold W. (S) j 1361 Utica St., Denver, Col. Enberg, Christer, Tegellaboratoriet (Brick Lab.), Exp. Sta. of the Royal Swedish Academy for Engr. Science, Drottning Kristinas vag 47, Stockholm O, Sweden Engel, Juan J. R., Casilla Correo 2394, Buenos Aires, Argen tina Engel, Rene, 711 S. Fair Oaks Ave., Pasadena 2, Calif. "English China Clays Sales Corp., 551 Fifth Ave., New York L 17, N. Y. i Enhus, Hans Gosta, Aktiebolaget Malardalens Tegelbruk, Stockholm 3, Ericsbergsgatan 27, Sweden Enloe, Scroop W., Dillsboro, N. C. Enloe, Scroop W., Jr., Spruce Pine, N. C. Erard, Edward, Prolongacion Calle De La Rosa, No. 9, Atz- capotzalco, D. F., Mexico Erdinc, Saban S. (J), M.T.A. Genel Direktorluga, Y. Seramik Muh, Ankara, Turkey : Erickson, A. Alfred, 84 Pershing St., Corning, N. Y. Erickson, Allen J., 4844 38th Ave. N. E., Seattle 5, Wash. Erie Resistor Corp. (Paul F. Siegrist), 644 W. 12th St., Erie, Pa. Ernst. Dolly M., Box 339, R. R. 4, Loveland, Ohio . Ernst, Walter S., 2728 E. Fifth Ave., Knoxville, Tenn. . Errett. David J., Climax Molybdenum Co. of Pa.. Langeloth. Pa. : Ersley, Chauncey J., Jr. (S); Box 78, Rexville, N. Y. : |rv!- Francis E., 220 Sunset Dr., White Boro, McKeesport. Pa. :. Ervin, Guy, Jr., Research Laboratory, Norton Co., Wor cester, Mass. Erwin, Lee R., 209 S. Sunset Place, Monrovia. Calif. Erzen, Frank C. (J), 6619 Beck St., Oakland 5, Calif. Escandon, Manuel F., Institute Mexicano de Investigaciones Technologicas, Legaria 694 Banco De Mexico S. A., Mexico 10. D. F. Eschenburg, Robert L., II (S), Floresville, Texas Espersen, Karen, Holmegaards Glasvaerk, Holme-Olstrup, Den mark Esselstyn, Willard A., R. R. 1, Canonsburg, Pa. Essick, Charles R., Pennsylvania Optical Co., Reading, Pa. Estes, J. F., Haeger Potteries, Inc., Dundee, 111. Etheredge, Otis K., Box 252, Gordon, Ga. Etris, Samuel F., 100 W. Nippon St., Philadelphia 19, Pa. Eubank. William R., Box 57, R.R. 3. River Falls. Wis. Eubanks. Alfred G., 10802 Stella Court, Kensington. Md. Eureka Flint & Spar Co., Inc. (M. J. McHugh), 190 W. State St., Trenton 8. N. J. Eusner, George R., 1025 Summitt St., McKeesport, Pa. Evans Case Co. (Alfred F. Reilly, Sr.), 21 East St., North E'vAatntsle, bCohroar,leMsaEss.,. 2401 Northglen Drive, Columbus 11, Ohio vans, Daniel O., Hillcrest & Linden Ave., Mapleview, CharIeri, Pa. VL. 32, No. 10 (1953) Evans, Edward J., Welsh Tin Plate & Metal 'Stamping Co., Llanelly, Carmarthenshire, Great Britain Evans, Kenneth E., Allied Engineering Co., 4150 E. 56th St., Cleveland, Ohio Evans Lead Corp. (R. M. Evans), Box 1467, Charleston 25, W. Va. Evans Pipe Co. (T. J. Evans III),Uhrichsville, Ohio Evans, Richard F., 2320 Milton Ave., Syracuse, N. Y. Evans, R. M., Evans Lead Corp., Box 1467, Charleston 25, W. Va. Evans, Ross M., 604 E. Mechanic St., Brazil, Ind. Evans, T. J., Ill, Evans Pipe Co. Uhrichsville, Ohio Evans, William G., George L. Ashworth & Bros. Ltd., Broad St. Works, Hanley, Stoke-on-Trent, England Evans, William W.,t 506 E. Iron Ave., Dover, Ohio Everhart, J. 0.,*t Engineering Experiment Station, Ohio State University, Columbus 10, Ohio Eversole, W. G., Linde Air Products Co., E. Park Dr. & Wood ward Ave., Tonawanda, N. Y. Ewing, Robert F., Mansfield Sanitary Pottery, Perrysville, Ohio Exolon Co. (S. F. Walton), Tonawanda, N. Y, Eyerly, George B., 3813 N. Humboldt Ave., Apt. 4, Milwaukee, Wis. F Fabianic, William L.,*t 1831 Seminary Ave., Alton, 111. Fabrica de Ladrillos Industriales y Refractarios, S. A. (Sal vador Odriozola Gomez), Apartado 390, Monterrey, N. L., Mexico Fabrica de Porcelana da Vista Alegre Lda., Largo da Biblioteca Publica, No. 17, Lisbon, Portugal Fackler, Ernst G., Apartado Aereo 6108, Bogota, Colombia Fackt, George P.,* 408 Paseo del Mar, Palos Verdes Estates, Calif. Fadanelli, Louis H. (S), 1132 S. California Ave., Chicago, 111. Fahrenbruck, William 0.,t R. R. 1, Box 95, Tiffin, Ohio Failmezger, Howard.*! Victor Insulators, Inc., Victor, N. Y. Fain, Charles C. (S), 789 Glendalyn Ave., Spartanburg, S. C. Fairchild, Charles O., Chain Bridge Rd., Fairfax, R. R. 3, Va. Fairfacts Co., Inc. (M. P. Mitchell), Box 374, Trenton 3, N. J. Falconer, Donald P., 1018 Maple Ave., Evanston, 111. Fallon, Frank J.,+ B. G. Corp., Ridgefield, N. J. Falter, Arthur H., 8635 Jacob PI., Niagara Falls, N. Y. Farber, Louis G.,f Ceramics Monthly, 3494 N. High St., Columbus 14, Ohio Fargo, Jarvis J., 140 Centerway, Corning, N. Y. Farkas, Howard, United States Stoneware Co., 60 E, 42nd St., New York, N. Y. Farley, Eldon (S), 336 S. Fifth St., San Jose, Calif. Farnell, James H., Ferroxcube Corp. of America, E. Bridge St., Saugerties, N. Y. Farr, Archie E., Box 379A, R.R. 5, Pittsburgh 5, Pa. Farrow, Lewis C., R.R. 1, Clyde, Ohio Fasold, G. A., 7329 Bernard Ave., Cincinnati 31, Ohio Faulkner, Karl B., Corning Glass Works, Corning, N. Y. Faust, Ernest H., Jr.t (J), 3129 Whitney Ave., Mt. Carmel, Conn. Faust, George T., 9907 Capitol View Ave., Silver Spring, Md. Fay, Wavne X., General Refractories Co., 202 Oxford Hill Lane, Havertown, Pa. Feagin, R. C., Austenal Laboratories, Inc., 224 E. 39th St., New York, N. Y. Federal Glass Co. (Henry H. Blau), E. Innis Ave., Columbus 7. Ohio Federal Seaboard Terra Cotta Corp., (O. E. Mathiasen), Perth Amboy. N. J. Fedock, Michael P,, 163 Woodlawn Ave., N. W,, Canton 8, Ohio Feinbloom, David T. (S), Box 279, Alfred, N. Y. Fellows, R. L.,*t 748 N. Kensington Ave., La Grange, 111. Fellows, Roger L., Jr.t (J), 2219 Tabor Ave., Dayton 10, Ohio Fels, C. G.,t 11 DeForrest Ave., North Plainfield, N. J. Fenstermacher, John E. (S), 814 Morewood Ave., Pittsburgh, Pa. Fenton, Thomas W., General Steel Wares, Ltd., London, Ont., Canada Fenton, Walter M., Lithium Corp. of America, Inc., 2560 Rand Tower, Minneapolis 2, Minn. Ferdinand, George, 7113 Fishbum Ave., Bell, Calif. Ferguson, D. Robert, III, Box 368, New Cumberland, W. Va. Ferguson, Donald (S), Box 929, Alfred, N. Y. Ferguson, Douglas J., Pigeon Forge Pottery, Pigeon Forge, Tenn. Ferguson, Robert F., 1765 Caleb Dr., Zanesville, Ohio Roster 19 .. ,,ll;ion, Robert L., Yankee Hill Brick Mfg. Co., 730 Stuart ** gldg., Lincoln 8, Neb. Fergus011' R. W., General Ceramics & Steatite Corp., Keas- Ferna'11('0' Hector S. (S), Box 96, Alfred, N. Y. Ferraz, Cyro B., Rua Voluntarios da Patria 2.SOS, Casa 15, Sao r Paulo, Brazil Ferris, Harry P. (J), 20 Birch Dr., Levittown, Pa. Ferris. James E., Niagara Alkali Co., 60 E. 42nd St., New York 17, H' Y. Ferro Corp. (R. A. Weaver), 4150 E. 56th St., Cleveland 5, Ohio Ferro Engineering Co., 1208 Hanna Bldg., Cleveland 15, Ohio pessler, A. H.,*t Fenton, .Mich. petter, H., Compania Mexicana de Refractarios, A. P. Green g. A., Tlalnepantla Apartado No. 71-Bis., Mexico City, Mexico petzer, George W., 1205 17th Ave., Columbus 11, Ohio peyling, Claus A., Eie Stentoifabrik, Egersund, Norway Kiberglas Canada, Ltd., Box 309,. Guelph, Out., Canada Field, Theodore E., 16th & Lee Sts., Louisville 10, Ky. FilipP1' Hugo,* Illinois Brick Co., 228 N. La Salle St., Rm. 1718, Chicago 1, 111. Fillmore, Charles L.,t Globe-Union Inc., 900 E. Keefe Ave., Milwaukee 1, Wis. Filreis, Samuel, 28 Chester Circle, Raritan Gardens, New Brunswick, N. J. Findlay Clay Products Co. (R. S. Craft), Washington, Pa. "pinlay, G. R., Box 243, Chippawa; Ont., Canada Finlaysen, John R. (S), School of Ceramics, Rutgers UniverU; sity, New Brunswick, N. J. /Finney, Edwin L. (J), The Claycraft Co., Shawnee, Ohio Firestine, Arthur G., 34 Dewey Ave., Fairport, N. Y. /Fischer, Eugene A., 108 Newton Ave. N., Worcester 5, :: Mass. Fischer, Peter R. (S), Deisenhofener Str. 87, Munich 9, Ger- / many Fischer, Robert J.. 86 Barker Ave., Eatontown, N. J. Fish, Elford T. (S), Box 801, Alfred, N. Y. -`Fishel, Waite P., Box 127, Vanderbilt Univ., Nashville 4, Tenn. - Fisher, Henry C., 1 New Bond St., Worcester, Mass. "Fisher, Joseph R., Bell Telephone Labs., Rm. 1A-336, Murray | Hill, N. J. /Fisher, William V., Anchor Hocking Glass Corp., Lancaster, Ohio JFishlev, William S., The Sparta Ceramic Co., East Sparta, Ohio 'Fish-Schurman Corp. (Murray Yawitz), 70 Portman Rd., New 2 Rochelle, N. Y. ; Fisk, Henry G., Natural Resources Research Inst., Univer| sity of Wyoming, Laramie, Wyo. /Fitzgerald, Alex E.,t General Refractories Co., 1520 Locust A _St., Philadelphia 2, Pa. : Fitzgerald, J. Vincent, Tile Council of Amer. Research Center, School of Ceramics, Rutgers University, New Brunswick, N-.J...Fitzsimmons, Elmer S., Dept, of Ceramic Eng., Iowa State ; College, Ames, Iowa /Fix, Frank A., Posey Iron Works, Inc., Lancaster, Pa. Fleischer, Arthur, Box 349, Easthampton, Mass. ?,Fleischer, Eiler, Holst & Fleischer, A/S Prinsens Gate 1, /Oslo, Norway Fleming, A. P. M., Metropolitan Vickers Electrical Co., Ltd., f" Trafford Pk., Manchester 17, England ^Fleming, Charles A.,t 215 Dogwood St., Park Forest, 111. /Fleming, David M.(S), 322 E. Irving Ave., State College, Pa. FRtcher Enamel Co. (J. Carroll Fletcher), Dunbar, W. Va. ; {Richer, J, Carroll, Fletcher Enamel Co., Dunbar, W. Va. /Flmk, Fulton B., 1706 First National Bank Bldg., Pittsburgh ^^* Flint, E. P., Armour Research Foundation, 35 W. 33rd St., Chicago 16, 111. blint, Francis C.,*I Hazel-Atlas Glass Co., 15th & Jacobs Sts., Wheeling, W. Va. lora, Lawrence E., 948 Cleveland, Kirkwood 22, Mo. ' Florence. Jack M., Kimble Glass Co., 2626 Dorr St., Toledo 1, j t-Ohio yFiu, Eldon B., 1533 Crooks Rd., Royal Oak, Mich, .-`'ogelberg, Sven, Webb's Crystal Glass Co., Ltd., Dennis ip , Hssworks, Stourbridge, England ; Milkers, Charles L. (S), Box 243, Ackley, Iowa Fonvielle, Frank P,, Jr.,t Dentist Supply Co. of N. Y., 500 W. , College Ave., York, Pa. ,0te Mineral Co. (L. G. Bliss), 18 W. Chelten Ave., Philapdelphia 44, Pa. F fk^er' Robert W., 230 Newman St., Metuchen, N. J. rbes, Lewis J.-B., 165 Bloor St., E., Toronto, Ont., Canada p0r(1. Fred J., Box 537, Dallas, Texas p0rij' George D.,t 2136 Wilmer St., Zanesville, Ohio rd, W. B., Smith & Stone, Ltd., Georgetown, Ont., Canada Vc. 32, No. 10 (1953) Ford, Walter D.,t Pittsburgh Corning Corp., Technical Dept., Port Allegany, Pa. Fords Porcelain Works (I. A. Hansen), Perth Amboy, N. J. Foresman, Grover C., 212 Cedar St., Coming, N. Y. Forjaz, Nicolau, Porto Ferreira CP, E. Sao Paulo, Brazil Forkner, Henry R.,t Box 482, Blacksburg, Va. Forry, W. J.t (J), 21 N. Shippen St., Lancaster, Pa. Forse, Edwin B., Carborundum Co., Box 268, Perth Amboy, N. J. Forter, Samuel A., 1210 Clark Bldg., Pittsburgh 22, Pa. Fosdick, Marion L.,* New York State College of Ceramics, Alfred, N. Y. Foster, Charles T. (J), 612 Sanguinette, Webster Groves, Mo. Foster-Forbes Glass Co. (F. R. Motsch), Marion, Ind. Foster, Wilder D., 5405 Bower Ave., Verona, Pa. Foster, Wilfrid R.,* Dept, of Mineralogy, Ohio State Univer sity, Columbus 10, Ohio Fostoria Glass Co. (Roy G. Yeater), Moundsville, W. Va. Fowler, Eugene F., Battelle Memorial Institute, 505 King Ave., Columbus, Ohio Frad, William A. (S), 1800 Oak St., Rolla, Mo. ., Frahme, Herman H.,t 114 Winston Rd., Akron 13, Ohio Frame, Dudley P., Jr., 490 Colonial Ave., Worthington, Ohio France, J. H., Refractories Co. (William A. France), Snow Shoe, Pa. France, William A., J. H. France Refractories Co., Snow Shoe, Pa. Franceschini, Eng. Felippe, Ceramica Sao Caetano, Caixa Postal 278, Sao Paulo, Brazil Francis, Ronald K. (S), 9 Sherwood St., Wellsboro, Pa. Francisco, Allen C.,t 227 Beeler Dr., Berea, Ohio Franck, Leon, Franck & Steeman, S. A., 20 Ave. Emmanuel, Haren-Nord, Belgium Francl, Josef (S)., 52 Massachusetts Ave., Cambridge 39, Mass. Frank, Henry A., Kokomo Sanitary Pottery Corp., Kokomo, Ind. Frank, John N., Frankoma Potteries, Inc., Sapulpa, Okla. Franklin, Earl W., R.R. 1, Box 212B, Alfred University Re search Lab., Kingston, N. Y. Franklin, William S.,t 918 Grassmere Ave., Wanamassa, N. J. Frankoma Potteries, Inc. (John N. Frank), Sapulpa, Okla. Frantz, S. G., Co., Inc. (Samuel G. Frantz), Box 1138, Tren ton, N. J. Frantz, Samuel G., S. G. Frantz Co., Inc., Box 1138, Trenton, N. J. Franz, Leo J., Acme Brick Co., Malvern, Ark. Fraser, Lewis H. D., 5532 S. Everett Ave., Chicago 37, 111. Fraser, Orray T.,t Harbor Hills, Hebron, Ohio Fraser, Walter A., Box 364, Fraser Glass Co., Inc., Roslvu Heights, N. Y. Fraser, W. B., Box 144, Dallas 1, Texas Frazier, C. E.,* Frazier-Simplex, Inc., 436 E. Beau St., Wash ington, Pa. Frazier, C: T., 527 E. Beau St., Washington, Pa. Frazier, J. Earl,*t Frazier-Simplex, Inc. 436 E. Beau St., Washington, Pa. Frazier-Simplex, Inc. (C. E. Frazier), 436 E. Beau St., Wash ington, Pa. Frechette, Howells* (Life), 52 Park Ave., Ottawa, Ont., Canada Frechette, Van Derek,t New York State College of Ceramics, Alfred, N. Y. Frederick, C. L.,t 24 Meadowood Lane, R. R. 4, Chagrin Falls, Ohio Frederick, Gilbert M., Babcock & Wilcox Co., 1120 Packard Bldg., Philadelphia 2, Pa. Frederick, Vernon W., Libbey-Owens-Ford Glass Co., Ross- ford, Ohio Fredericks, John D., Pacific Clay Products, Box 145, Sta. A., Los Angeles 31, Calif. Fredriksson, John I., Norton Co., Box 87, Niagara Falls, Ont., Canada Freeman, Charles A.,*t Freeman Fire Brick Co., Box 606, Canon City, Colo. Freeman, Edgar H., Cook Mfg. Co., Box 157, Walnut, Calif. Freeman, Joseph, L & L Manufacturing Co., 804 Mulberry St., Upland, Pa. French, Myrtle M.,^8301 S. Langley Ave., Chicago 19, 111. French, Preston W.,t 1517 Union Ave., Brackenridge, Pa. French Saxon China Co. (W. V. Oliver), Sebring, Ohio Freund, Thomas L. (J), Pittsburgh Plate Glass Co., Shelby- ville, Ind. Frey, E. F., DeVilbiss Co., Toledo 1, Ohio Friedberg, Arthur L., 204 Ceramics Bldg., University of Illinois, Urbana, 111. Friedman, Louis K., Homer Laughlin China Co., 212 Fifth Ave., New York, N. Y. Friedmann, Ernesto (S), HOEHR-GRENZHAUSEN, Wester- wald, Postlagemd, Germany (French Zone) Fritz, E. H.,*t 710 Walnut St., Latrobe, Pa. Roster 21 Vfs itl. ttom. iolent ically. an IS) .ulling i in 15 nd all effec- Howell E., United Fuel Gas Co., Box 1273, Charleston W. Va. Jfc ,,r/ak E. T,, 433 37th St. N. W,, Canton, Ohio st Leon J., Box 138, Lewiston, N. Y. P Herbert G., National Enamels, Ltd., S3 Norman Rd., Yreenwich, London S. E. 10, England .linger, James B., Pennsylvania Glass Sand Corp., 140 f^tamvix St., Pittsburgh, Pa. 'i?~.nzalida, Javier H., Foreign Div., American Radiator & ^.Standard Sanitary Corp., 40 W. 40th St., New York 18, N. Y. pnlker, Richard H.,t 1408 Nicklin Ave., Piqua, Ohio Stiller Donald H.,t 335 S. Cook Ave., Trenton, N. J. Jioiler' L. R.J 1129 E. Walnut St., Kokomo, Ind. Bcnller Richard B., 628 Wayne St., Sandusky, Ohio P^oller, ROiiic-VhianrrHd 1G4., HT-T. CC'. BSnpiinnkkcs CC'lay ACno., FRiirrsctt National Bank |J gidg., Cincinnati 2, Ohio Tjfulmer, Raymond C., Stackpole Carbon Co., St. Marys, Pa. Fulratb Richard M., Box 254 A, Linda Mesa Ave., Danville, Calif.' Jipglton, Glen B., Norris Stamping & Mfg. Co., Box 16, Sta. Mc% 5215 Boyle Ave., Los Angeles, Cain. SjFun'k, James E. (S), 1355 Crane St., Schenectady, N. Y. Pftmke W., Owens-Illinois Glass Co., 3600 Alameda Ave., If Oakland 1, Calif. Hfniikliouser Co., (J. B. Sauls), Blue Ridge Summit, Pa. llf'tumell, John E.,t Southwest Research Institute, Box 2296, IL San Antonio 6, Texas Burr, Clegg M.,t Box 191, Oakboro, N. C. Bussell, Lynn E., 122 Kingston, Louisville, Ky. fuszara, Lester T.,t 5 Stanton Ave., Perry, N. Y. 3t 1 liGad, G. M. (S), Chemical Engineering Dept., Prince Consort ||- Rd., London .S. W. 7, England MGagin, L. V., Kimble Glass Co., 2626 Dorr St., Toledo, Ohio jflGainer, Taylor M., 6505 Evangeline, Louisville. Ky. EGaines, Robert F., 52 S. Pickering St., Brookville, Pa. MGalbreath, William W., Jr.j 317 S. West Ave., Elmhurst, 111. iGallison, Herbert E., Worthington Corp., Industrial Mixer Div., W-Plainfield, N. J. BGallup, John,! RCA Victor Div., Radio Corp. of America, pi-415 S. Fifth St, Harrison, N. J. tGalusha, Richard L., Box 12, Bendersville, Pa. sGalvin, Richard J., Sheffield Brick & Tile Co., Sheffield 1, Jfc Iowa ffGamson, Bernard W., Great Lakes Carbon Corp., Box 9, Morton |i- Grove, 111. |Gangler, James J., 20538 Stanford Ave., Fairview Park 26, Ohio jfGanier, Albert F., Jr., W. G. Bush & Co., 174 Third Ave. N., J Nashville, Tenn. g.Ganpule, Anant K., Parshuram Pottery Works Co., Ltd., t Morvi, Saurashtra, India 1 Gants, Sheldon B., Ceramic Associates, 3650 Dyre Ave., New York, N. Y. if Garbisch, Norbert S., Garco Products, Inc., Box 351, Butler, |Garcia-Leal, Ramon,t Apartado Postal 1115, Monterrey, N. L., P Mexico /anite-ba |G*rco Products, Inc. (Norbert S. Garbisch), Box 351, Butler, g Pa. r resistanc ing or sag nd smootq tl strength KGarden, Henry R., Jr., Box 123, Salem, Va. ]f.Gardner, Walter E., Padre Mier 437 Pte., Apt. 1, Monterrey "I F., Mexico ^are's> Friedrich, "Tassino," Montagnola Lugano, Switzerland |; lrfield Refractories Co. (Kenneth A. Rugh), Bolivar, Pa. ervice, and 3 to rouglj Garland, C. F., Mason City Brick & Tile Co., Mason City, Iowa Garlick, Oakley H, Paul O. Abbe, Inc., Little Falls, N. J. s are mad| tetbods an<J miical serv ite for you es the cor Larlick, Philip L.t (S), 1 Gladys St., Cyrildene, Johannesburg. South Africa prison, Donald L.j 401 Woodside Ave., Narberth, Pa. '"Sjstang, Alec, King, Taudevin & Gregson, Ltd., Melbourne . Chambers, Cambridge St., Sheffield 1, England riye' T. Walter,*! 69 W. Weisheimer Rd., Columbus 14, Ohio Garveyi Lawrence P.J RCA Victor, 415 S. Fifth St., Harrison, X, J. ^askins, W. W.,t 1608 Huntington Dr., Box 390, South Pasa- rdcna, Calif. I Daniel W.t (S), Apt. 9B, Daniel Dr., Clemson, S. C. pates. Louis E., Jr, (S'), Box 933, Canton, N. C. ates, Major E., 1447 Parkview Ave., Pasadena, Calif. (Iates, R. Wayne,t R.R. 1, Rosedale, Ind. jaudiano, Victor M., Sanitarios El Aguila S.A., Apartado ^tal 26808, Zone 14, Mexico, D. F. V L- 32, No. 10 (1953) Gaunt, Charles L., Indiana Glass Co., Dunkirk, Ind. Gautsch, Murray C.,t Metal & Thermit Corp., E. Grand Ave., South San Francisco, Calif. Gavin, G. P., Kohler Co., Kohler, Wis. Geiger, Charles F.,*t Carborundum Co., Box 268, Perth Am boy, N. J. Geisinger, E, E.,* Pfaudler Co., 1000 West Ave., Rochester 3, N. Y. Geller, R. F.,*t 5427 York Lane, Bethesda 14, Md. Gelstharp, Frederick,* 1134 Park St., Tarentum 1, Pa. Geltman, Gerald (S), Box 746, Alfred, N. Y. Gemp, Robert W., 6000 Tabor Ave., Apt. A3,-Philadelphia 11, Pa. General Ceramics and, Steatite Corp. (R. W. Ferguson), Keasbey, N. J. General Color & Chemical Co., Inc., (Harry J. Keener), Box 7, Minerva, Ohio General Electric Co. (G. M. Boyd), Locke Dept., Box 57, Baltimore 3, Md. General Electric Co. (W. S. Kahlson), Lamp Dept., Pitney Glass Works, Nela Park, 12, Cleveland, Ohio General Glass Equipment Co. (Victor A. Plumbo), 5 S. Vir ginia Ave., Atlantic City, N. J. General Refractories Co. (Russell P. Heuer), 1520 Locust St., Philadelphia 2, Pa. Gentry, Raymond, Alexander H. Kerr & Co., Inc., Box 2008, Santa Ana, Calif. Gentsch, Bernhard F., United Clay Mines Corp., 101 Oak land St., Trenton, N. J. George, W. C., W. S. George Pottery Co., East Palestine, Ohio George, W. R., Canonsburg Pottery Co., Canonsburg, Pa. George, W. S., Pottery Co. (W. C. George), East Palestine, Ohio Georgia Kaolin Co., 433 N. Broad St., Elizabeth 3, N. J. Georgia Pigment Co. (W. W. Kingman), Sandersville, Ga. Gerber, Max, 232 N. Clark St., Section 1, Chicago 1, 111. Gercar, Francisco J., S. A. Cristalerias Del Uruguay, Comercio 1491, Montevideo, Uruguay Gersch, Herbert, 292M Bagshaw Rd., Columbus, Ohio Gerstenschlager, V., Jr., Babcock & Wilcox Co., Bex 923, Augusta, Ga. Gerster, C. W.,f The Louthan Mfg. Co., East Liverpool, Ohio Getto, Allan (S), Box 246, Alfred, N. Y. Ghering, Leonard G.,* Preston Laboratories, Box 149, Butler, Pa. Giacomelli, Domenico, Soc. It., Refrattari Marghera Azionaria, Via Industrie 52 Cas. Post. 38, Marghera, Italy Gibb, Mary J., American Ceramic Society, 2525 N. High St., Columbus 2, Ohio Gibbs, Melvin B., Inland Steel Co., East Chicago, Ind. Gibson, Frank B., Association of American Railroads, 59 E. Van Buren St., Chicago 5, 111. Gibson, R. L.,t 512 E. Leasure Ave., New Castle, Pa. Gieseke, Frans, Kockums Emaljerverk, Ronneby, Sweden Giesey, V. A., 1704 W. Carson St., Pittsburgh, Pa. Giess, Edward A. (J), 124 Geranium Ave., Floral Park, N. Y. Giles, James H-, Jr., 5516 39th St., N. W., Washington, D. C. Giles, Lt. Thomas M. (J), Box 150, G.A.F.B., Rome, N. Y. Gilfillan, J. M., New Jersey Porcelain Co., Box 908, Trenton 5, N. J. Gill, James A., 8427 Broadway, San Antonio 9, Texas Gill, John H., Gill Clay Pot Co,, Muncie, Ind. Gill, Joseph W.,t 563 Hillside Ave., Elmhurst, 111. Gill, LaVerne N.,t American Radiator & Standard Sanitary Corp., Box 268, Torrance, Calif. Gillespie, H. M., 225 Broadway, New York 7, N. Y. Gilliard, Joseph W., 108 W. County St., Phoebus, Va. Gillinder Bros., Inc. (J. Fletcher Gillinder), Port Jervis, N; Y. Gillinder, J. Fletcher, Gillinder Bros., Inc., Port Jervis, N. Y. Gilluly, William F., 212 Chestnut St., Port Allegany, Pa. Gimson, Joseph F., Worcester Royal Porcelain Co., Ltd., Royal Porcelain Works, Worcester, England Gingold, Jacob, 6 rue de Fontenay, Plessis-Robinson, Paris, Seine, France Ginther, Lawrence B., Libbey-Owens-Ford Glass Co., 1701 E. Broadway, Toledo 5, Ohio Girard, R. T., Works Laboratory, General Electric Co.. Sche nectady, N. Y. Gitter, Alice Josephine,*! 39 W. 70th, New York 23, N. Y. Gitzen, Walter H., 1 Wesley Dr., Belleville, 111. Given, Conrad W., Great Lakes Steel Corp., Ecorse, Detroit 18, Mich. Glabau, Ernest R. (S), 234 Somerset Ave., Taunton, Mass. Gladding, A. C., Gladding Bros. Mfg. Co., Third & Keyes St., Box 88, San Jose, Calif. Gladding, McBean & Co. (William O. Brandt), 2901 Los Feliz Blvd., Los Angeles 39, Calif. Roster 23 riaCjney, Kurt, Fiberglas Canada, Ltd., Box H, Sarnia, Ont., 0 Canada f'la/i.', Francis W.J 4100 Gallatin St., Hyattsville, Md. filen-Gery Shale Brick Corp. (Gordon E. Lewis), Box 182, VVyomissing, Pa. glensha'W Glass Co., Inc. (George W. Meyer), Glenshaw, Globe-Union, Inc. (J. Fletcher Harper), 900 E. Keefe Ave., Milwaukee, Wis. (jjossbrenner, D. I., R. R. 12, Box 261, Indianapolis, Ind. rivnn, T. W., Blue Ridge Glass Corp., Kingsport, Tenn. r.oddard, W. T., Box 428, Hamilton, Ont., Canada goetchius, Don R., 4150 E. 56th St., Cleveland, Ohio Goettman, Franklin P., Standard Sand Co., Grand Haven, Mich. Gobi, Fred L., Gladding, McBean & Co., Lincoln, Calif. Golding, Ivor L. S., Metal Porcelains, Ltd., Cornwall Rd., Smethwick 40, England Golding Keene Co. (G. G. Copeland), Keene, N. H. Goldman, Basil B., 1545 S. State St., Chicago 5, III. rroldsmith, Julian R., University of Chicago, Dept, of Geology, Chicago 37, 111. Goldstein, Maxwell K., Balco Research Laboratories, 49-53 Edi son Place, Newark 2, N. J. Gomez, Salvador Odriozola, Fabrica de Ladrillos Industriales y Refractories, S. A., Apartado 390, Monterrey, N. L., Mexico Gonder, Lawton, Gonder Ceramic Arts, Inc., Box 448, Zanes ville, Ohio Gonzalez, Raul, Vidriera Mexico, S. A., Lago Zurich #243, Mexico 17, D. F., Mexico Goodman, Gilbert, General Electric Research Laboratory, : The Knolls, Schenectady, N. Y. Goodman, H. A., Dominion Fire Brick & Clay Products, Ltd., Claybank, Sask., Canada Goodman, James S., American Radiator & Standard Sanitary Corp., 834 E. Broadway, Louisville 4, Ky. Goodrich, H. R.,t 1622 Santa Barbara Ave., Glendale 8, Calif. Goodwin, William Jarrard, Metals Research Labs., Electro- Metallurgical Co., Box 580, Niagara Falls, N. Y. Gordon, Irwin, RCA Laboratories Div., Princeton, N. J. Gormly, Alan L., 490 Shrewsbury St., Holden, Mass. Gorntly, Maurice W., 7330 Miami Hills Dr., Madeira, Ohio Gornaii, Henry A.,t 4357 Ardmore Rd., S. Euclid, Cleveland 21, Ohio Gorsuch, Charles A., Ayers Mineral Co., 806 Market St., Zanesville, Ohio Gort, Walter A., 20 Sheridan Ave., Metuchen, N. J. Goss, Bruce R. (S), Klan Alpine Fraternity, Box FF, Alfred, N. Y. Gotto, Mrs. B. D., Westmoor Laboratory, Chatteris, Cambridge shire, England Goudge, Monson F., Mines Branch, 40 Lydia St.-, Ottawa, Ont., Canada Gough, James AJ < J), 1282 Genessee Rd.. Cleveland, Ohio Gould, Robert E.,*t Buffalo Pottery, Inc., 25 Hayes Place, Buffalo 10, N. Y. Gower, Irving W,, Box 5084, Raleigh, N. C. Graff, James B., Graff-Kittanning Clay Prod. Co., Worthington, Pa. Graff-Kittanning Clay Prod. Co., (James B. Graff), Worthing ton, Pa. Graff, William A., Glass Technology Laboratory, General Electric Co., 1133 E. 152nd St., Cleveland 10, Ohio Graham, John W., Research Laboratory, Kennametal, Inc., Latrobe, Pa. Graham, Ronald A,, Wyandotte Chemicals Corp., Research Div., Wyandotte, Mich. Grannen, Edward A., 77 Sheehan Ave. Cincinnati 15, Ohio Grant, Frederic J., 527 W. Seventh St., Rm. 302, Los Angeles 14, Calif. Crant, Mrs. Frederic J.. Smoke Tree Ranch, Palin Springs, Calif. Gray. William T., Leeds and Northrup Co., 4901 Stenton Ave., Philadelphia 44, Pa. Great Lakes Foundry Sand Co. (C. L. Cruikshank), 720 United Artists Bldg., Detroit 26, Mich. Great Lakes Steel Corp. (Conrad W. Given), Ecorse, Detroit 18, Mich. Greaves-Walker, A. F.,*f Box 1416, Zephyrhills, Fla. Green, A. T.,* British Ceramic Research Assn., Queen's Rd., Penkhull, Stoke-on-Trent, England "reen, A. P., Fire Brick Co. (R. S. Bradley), Research Dept., -Mexico, Mo. reen, Allen P., A. P. Green Fire Brick Co., Mexico, Mo, oen' T., Milton Brick Co., Ltd., 170 Bloor St. W., Toronto, qGI'U.. Canada r5en> John R.,t Brown Instruments Div., Wayne & Roberts We., Philadelphia, Pa. reen, Robert L., Lenox, Inc., Meade St., Trenton, N. J. Vh. 82, No, 10 (1953) Green, R. S.,1 18 S. Jefferson Rd., Mexico, Mo. Greenberg, Sidney A., 377 Windsor St., North Plainfield, N. J. Greene, Charles F., 540 Rogers Dr., Macon, Ga. Greene, Charles H., Box 1046, Alfred, N. Y. Greene, J. F.,* 1043 New Pear, Vineland, N. J. Greene, Robert H., Canadian General Electric, 5781 Notre Dame E., Montreal, Que., Canada Greger, Herbert H., R. R. 1, Rockville, Md. Gregorius, J. S.,*t Pittsburgh Plate Glass Co., Gateway Center, 420 Ft. Duquesne Blvd., Pittsburgh'22, Pa. Grenier, Lee, Magnet Cove Barium Corp., Box 832, Greybull, Wyo. Gresham, Lucius C., Jr., c/o Acme Brick Co., Monroe, La. Griffin, Thomas W., Busby Hill Rd., R.R. 2) Weatogue, Conn. Griffith, J. Scott, 5524 W. Adams St., Chicago 44, 111. Griffith, R. E., R. R. T, Malvern, Pa. Griffith, William A. (S), Box F F, Alfred, N. Y. Griffiths, Norman, Nonporite Pty., Ltd., 292-296 Burwood Rd., Hawthorn 2, Victoria, Australia Grigg, Arthur, Denver Sewer Pipe & Clay Co., Box 2329, Denver 1, Col. Grigg, Paul E.,t 1415 S. Fifth St., St. Charles 111. Grim, Ralph E., Dept, of Geology, University of Illinois, Urbana, 111. Grobb, F. S., G. F. Sterne & Sons Ltd., 126 Bruce St., Brant ford, Ont., Canada Groome, Garland L., 1347 Cambria St., Baltimore 25, Md. Gross, Harold I., Santa Anita Potteries, 3117 San Fernando Rd., Los Angeles, Calif. Grothaus, Joseph V., 6920 S. Shore Dr., Chicago 49, 111. Grove, Robert L.,t 26 Rockland St., So. Dartmouth, Mass. Gruidl, Raymond, 401 Sixth St., New Brighton, Pa. Gruner, Max N., Harbison-Walker Refractories Co., 1325 Ambassador Bldg., St. Louis 1, Mo. Gruver, Robert M. (S), 1160 Oneida St., State College, Pa. Gschwind, Jean F., J. O. Ross Engineering Corp., 444 Madi son Ave., New York 22, N. Y. Guerci, Carl F., 1444 Westgate Dr., Bethlehem, Pa. Guimaraes, Helio Pentagna, Caixa Postal 1355, Belo Horizonte, Brazil Guimond, Alfred C., Geemo' Originals, 14824--26 Charlevoix Ave,. Detroit 15, Mich. Guinn, William B. (J), W. S. Dickey Clay Mfg. Co., Pittsburg, Kan. Gulick, Chester, Kentucky-Tennessee Clay Co., 807 City Sav ings Bldg., Alliance, Ohio Gullings, LeRoy V., 126 Parkway Dr., Wabash, Ind. Gummeson, P. Eg., Hoganas-Billesholms Aktiebolag, Hog- anas, Sweden Gunther, F. W., 849 Baker Ave., N. W., New Philadelphia, Ohio Gunther, Juan R., Casilla 703, Concepcion, Chile Gunzenhauser, Adolph, Industrial Consultant, 617 W. End Ave., New York 24, N. Y. Gupta, Subodh (J), Box 213, Port Jervis, N. Y. Gustafson, Carl H., Jr., Montana Dr., Holden, Mass. Gustin, Jud A., Gouverneur Talc Co., Box 89, Gouverneur, N. Y. Guthrie, George, "Ochil" Harrow Rd., Sudbury Hill, Wem bley, Middlesex, England Guthrie, George B., 642 Louisiana Ave., Chester, W. Va. Gutierrez, Alvaro Mondragon, Empresa Siderurgica Nal. de Paz de Rio, Departamento Technico, Edificio Banco de Colom bia, Bogota, Colombia . Gutmann, Paul F., 88 Angelica St., St. Louis 7, Mo. Guzman, Hector, Box 382, Rio Piedras, Puerto Rico Gzowski, Edward R. (S), 59 Drake St., Oakfield, N. Y. H Hackett, James W., 3614 Kenwood Blvd., Toledo 6, Ohio Hackler, W. C.J Ceramic Section, Engineering & Industrial Exp. Station, University of Florida, Gainesville, Fla. Haecker, Richard A., 3469 Lewis Ave., Long Beach 7, Calif. Haeger, E. H., Haeger Potteries, Inc., Dundee, 111. Haeger Potteries, Inc. (E. H. Haeger), Dundee, 111. Haff, Robert S., Jr., Norton Co., Refractories Div., Sales Engrg. Dept., Worcester, Mass. Hafner, Harold C., Bausch & Lomb Optical Co., Dept. IH, Rochester 2, N. Y. Hagan, M. A.,t Midwest Research Institute, 4049 Pennsyl vania, Kansas City, Mo. Hagar, Donald,*t Box 328, Zanesville, Ohio Hagedom, E. C., Gen. Research & New Development Div., Owens-Illinois Glass Co., 1700 N. Westwood, Toledo 7, Ohio Hagenauer, Carl J., R. R..1, Sarver, Pa. Hagerman, R. Scott! (S), E. I. du Pont de Nemours & Co., Engr. Exp. Sta., Wilmington 98, Del. Roster 25 Hagglund, Erik, The Kanthal Corp., Amelia Place, Stamford, Conn. Hagner, Fred F., Phoenix Glass Co., Monaca, Pa. Hagy, Henry E., Corning Glass Works Lab., Corning, N. Y. Hahn, William P., 80 Norwood Ave., North Plainfield, N. J. Hahner, Clarence H.,* National Bureau of Standards, Wash ington 25, D. C. Malden, Frank A. (S), Graduate House, Mass. Inst, of Tech., (Cambridge 39, Mass. rialdy, Norman L., 441 Stewart Ave., Columbus 6, Ohio Hall China Co., (M. W. Thompson), East Liverpool, Ohio Hall, E. B., M/S Bird & Co., Ltd., Research Dept., Chartered Bank Bldgs., Calcutta, India Ha'll, Everson, Park Blvd., East Liverpool, Ohio Hall, F. P.,* Pass & Seymour, Inc., Syracuse 9, N. Y. Hall, John T., Elysian Way, East Liverpool, Ohio Haller, P., 319 Carterknowle Rd., Sheffield 11, England Haller, Wolfgang K., Inst, of Silicate Research, University of Toledo, Toledo 6, Ohio Hallett, Crawford W.,t 731 Lexington Ave., Zanesville, Ohio Halloin, William G., 1218 Broadview Blvd., Brackenridge, Pa. Halm, Louise, Union Francaise des Produits Refractaires, 15 Rue de Milan, Paris, 9e, France Hamaker, M. L., Columbia Fire Brick Co., First National Bank Bldg., Canton 2, Ohio Hamilton, Edgar H., National Bureau of Standards, Washington 25, D. C. Hamilton, Noble E., Axel Johnsons Vag 78, Avesta, Sweden Hamilton, W. M., Crane Co., Chattanooga Div., Chattanooga, Tenn. Hammer, Averill J., Dept, of Chemistry, Bowling Green State University, Bowling Green, Ohio Hammer, Gunter, "Grange Moore," 21 College Rd., Newton Abbot, Devon, England Hammer, R.,t Box 5212 (Nachla), Haifa, Israel Hammond Lead Products, Inc. (William P. Wilke, III), 5231 Hohman Ave., Box 912, Hammond, Ind. Hammer, Robert L., Box 14, Oak Ridge, Tenn. Hancock Brick & Tile Co. (J. Leo Child), Box 59, Findlay, Ohio Hancock,-Russell A., 83 Water St., Auburn Sydney N. S. W., Australia Hand,. Thomas, Corhart Refractories Co., 1600 W. Lee St., Louisville 10, Ky. Handen, Jack (J), 360 Eudid Ave., Elmira, N. Y. Handwerk, Joseph H., Box H, University, Ala. Vies, John G., Republic Steel Corp., Warren, Ohio inks, Charles F., Jr., Kentucky-Tennessee Clay Co., 807 City Savings Bldg., Alliance, Ohio Hanley- Co. (Charles E. Bates), Summerville, Pa. Hanlon, Charles W., Hauck Mfg. Co., 124--136 Tenth St., Brooklyn 15, N. Y. Hann, Douglas G., CayntQn, Shifnal, Shropshire, England Hann, G. C.,. Minnesota Mining & Mfg. Co., 367 Grove St., St. Paul 1, Minn. Hanna, H. H.,t Pittsburgh Plate Glass Co., Crystal City, Mo.. Hanna, Ralph E.,t Square D Co., Molded Insulation Div., Peru, Ind. Hanna, Richard (S'), Hartford, N. Y. Hannon, Richard C., 1208 Franklin Rd., Salem, Ohio Hanovia Chemical & Mfg. Co. (R. T. Hopper), 1 W. Central Ave., East Newark, N. J. Hansard, W. Carey,! 2345 Cheshire Bridge Rd., N. E., Atlanta, Ga. Hansell, U. G., Minneapolis-Honeywell, 50 Liberty St., Wes terly, R. I. Hansen, Charles V., Gibson Refrigerator, 515 W. Williams St., Greenville, Mich. Hansen, I. A., Fords Porcelain Works, Perth Amboy, N. J. Hansen, J. E.,* Ferro Corp., 5309 S. District Blvd., Los Angeles 22, Calif. Hansen, Valdemar, Kastrup Glasvaerk, Ltd., Norrevoldg. 12, Copenhagen K. Denmark Hansen, Waldemar C., Universal Atlas Cement Co., Gary, Buffington Sta., Ind. Hanson, G. G., International Minerals and Chemical Corp., Consolidated Feldspar Dept., 4436 N. Maplewood Ave., Chicago 25, 111 Hanson, Hans R., 30004 W. Ten Mile Rd., Farmington, R. R., Mich. Harbert, Carl, Harshaw Chemical Co., 1945 E. 97th St., Cleve land 6, Ohio H'rbison-Walker Refractories Co. (W. F. Rochow), 1800 jrmers Bank Bldg., Pittsburgh 22, Pa. court, Edward L., North American Mfg. Co., 3810 West St., Cincinnati 27, Ohio Harder, Charles M.,* New York State College of Ceramics, Alfred, N. Y. 28 Roster Harding, John Roy, 4 Greenway, Horsham, Sussex, Englanj . Hardinge Co., Inc. (Harlowe Hardinge), York, Pa. Hardinge, Harlowe, Hardinge Co., Inc., York, Pa. Hardy, Charles C., Compania Mexicana de Refractarios, A. p Green S. A., Apartado Postal No. 71-Bis, Mexico 1, D. F. ' Hardy, Ronald G.,t 5204 Catalina, Kansas City 3, Kan. Hares, George B., 15 Roosevelt St., Corning, N. Y. Hargreaves, John (S), 26 Kirk Lane, Yeadon, Near Leert England . Harker Pottery Co. (Robert E. Boyce), East Liverpool, Ohio: Harman, C. G.,* Horizons, Inc., 2891 E. 79th St., Cleveland,' Ohio Y Harnish, John D., Jr.,t Westinghouse Electric Corp., Derry, pa. Harper, J. Fletcher, Globe-Union, Inc., 900 E. Keefe Ave.' Milwaukee, Wis. Harper, Roderick L., Harper Electric Furnace Corp., 39 River St., Buffalo 2, N. Y. - Harr, W. J.,t 6454 Bloomingdale, Chicago 35, 111. Harrell. George O., 52-E Oak Grove Dr., Baltimore 20, Md. Harrington, Henry W., 132 Stafford Ave., Syracuse 6, N. Y.t Harris, Arthur L., Harris Clay Co., Dillsboro, N. C. Harris, David H., Shenango Pottery Co., New Castle, Pa. Harris, Henry M., 5226 Holly St., Seattle 8, Wash. Harris, Robert C., Box 424, Unadilla, N. Y. Harris, William J., Crossley Machine Co., Trenton 9, N. J. Harrison, Harold C., Westinghouse Electric Corp., Liaison" Eng., 7-L-23, East Pittsburgh, Pa. i Harrison, W. N.,* National Bureau of Standards, Industrial; Bldg., Enameled Metals Sect., Washington 25, D. C. v Harrison, William B.t (J), 3017 N. 86th St., Milwaukee 10! Wis. Harsell, William B. (S), 345 Union Ave., Elizabeth, N. J. Harshaw Chemical Co. (Carl Harbert), 1945 E. 97th St., Cleve-' land 6, Ohio Hart, John R. (S), 2208 Bernard St., Raleigh, N. C. Hart, Leroy D.^ 707 Crompton Court, Webster Groves 19, Mo.;: Hart, Wade J.,t 908 Lafayette Court, Marion, Ind. Hartford-Empire Co., Div. Emhart Mfg. Co. (Karl E. Peiler)r Box 1620, Hartford, Conn. ; Hartford, Thomas J. (J), Gladding McBean & Co., Pittsburg, Calif. Hartshorn, T. D.,t A. J. Lindemann & Hoverson Co., Milwau kee 15, Wis. i Hartwig, Frederick J., Jr., Babcock & Wilcox Co., Box 835, Alliance, Ohio Harvey, A. M., Jr., Roanoke-Webster Brick Co., Box 780,' Roanoke 5, Va. Harvey, E. ML, North State Pyrophyllite Co., Pomona, N. C. Harvey, Edwin T., 314 W. McPike St., Vandalia, Mo. Harvey, Joseph S., Jr., 465 Centre St., Quincy, Mass. Hasko, Stephen, 1510 Wheaton Lane, Silver Spring, Md. Hasselbach, William, Libbey-Owens-Ford Glass Co., 1701; E. Broadway, Toledo 5, Ohio Hassett, William A., 1315 Woodington Rd., Baltimore 29, Md.' Hatch, Robert A., Bureau of Mines, Electrotechnical Lab.,- Norris, Tenn. Hathaway, A. J., 8721 Pershing Ave., Niagara Falls, N. Y. Hathaway, Isaac S., 1318 Tuttle Ave., Montgomery, Ala. Hauck, Charles A.t (S), 3234 Kenyon Rd., Columbus, Ohio Hauser, Richard E.t (S), 351 Moselle St., Buffalo 11, N. Y.- Hauth, Willard E., Jr., 409 Warminster, Hatboro, Pa. Havekotte, Walther L., Firth Sterling, Inc., 3113 Forbes St, Pittsburgh 30, Pa. Havell, Richard F,, 846 N. Euclid Ave., Oak Park, 111. Havens, Irvin F. (J), R. R. 1, Belfast, N. Y. Haviland & Co. (Theodore Haviland II), 270 Park Ave., New' York 17, N. Y. L Haviland, Theodore II, Haviland & Co., 270 Park Ave., New: York, N. Y. Hawes, Samuel A., 301 N. E. Sixth Ave., Mineral Wells, Texas Hawk, Elwin A., Hawk Laboratories, Inc., R. R. 1, East. Rochester, Ohio Hawke, C. E., Carborundum Co., Perth Amboy, N. J. Hawkes, John H. (J), 197 S. Flagg St., Worcester, Mass. .. Hawkins, James M., Buffalo Brick Corp., 448 Franklin St* Buffalo, N. Y. Hawkins, Robert J.,t 411 Fifth Ave., Columbia, Tenn. Hawks, Ralph L., Holt St., Hopkinton, Mass. Hawks, William L., 19324 Third Ave., S., Seattle 88. Wash. Haws Refractories Co., (E. E. Slick, Jr.), 407 Main St* Johnstown, Pa. Hay, John, 58 Westholmes Gardens, Musselburgh, Midlothian,; Scotland Hay, Joseph L., Acme Brick Co., Malvern, Ark. Haydon, Mary P., 106 Ogontz Lane, Oak Ridge, Tenn. Hazel-Atlas Glass Co. (Francis C. Flint), 15th & Jacobs Sts* Wheeling, W. Va. ; Hazel, John J.,* Republic Bldg., Rm. 1.526, Republic Steel Corp., Cleveland 1, Ohio Ceramic Bulletin m: /< W LI.ETIX , E. J.,f R- R. 2, Ford City, Pa. r <Z\v']ames H., 4511 N. Sherman Blvd., Milwaukee 16, Wis. ; jl^th Donald L., Ohio Brass Co., Park & Ninth, Barberton, v it^dev Sidney M. (S), Box 475, Moncks Corner, S. C. Frank G., E. J. Lavino & Co., 1528 Walnut St., Philat Hfiphia 2, Pa. I': uC|delI James V., 2328 Hathaway Ave., Alhambra, Calif, i: r! iHen' Walter A., Battelle Memorial Institute, 505 King "Ave.,' Columbus 1, Ohio ulees Lee M., R. R. 4, Cedar Grove Rd., Somerville, N. J. Hedin, ' Claes O., Malardalnes Tegelbruk, Stockholm 3, Sweden Hedquist, Alfred J., Apartado Postal 525, Guadalajara, Jalisco, Mexico Hecbner, John C.,' 7064 Glen Meadow Lane, Cincinnati 37, P Reft'* Franz, c/o Ziircher Ziegeleien, Talstrasse 83, Zurich, *' Switzerland jjeidtman. Clarence F., The National Lime & Stone Co., First National Bank Bldg., Findlay, Ohio IP" Heiligman, H. A.,*t E. J. Lavino and Co., Box 29, Norristown, Fa. Heimsoeth, Werner M., Farbenfabriken Bayer (22-C), Lever- kusen-Bayerwerk, Germany Heindl, Raymond A.,* 4917 43rd St. N. W., Washington 16, if D. C. if Heine, H. W., Hudson Supply & Equipment Co., 1727 Perm it: syvania Ave. N. W., Washington 6, D. C. 8 Heischman, Frederick E., 106 S. Adams St., Fostoria, Ohio id.Heisey, A. H., & Co. (T. C. Heisey), Newark, Ohio glHeisey, T. Clarence, A. H.'Heisey & Co., Newark Ohio ft Heisler, John C., Jr., Eagle-Picher Co., Oliver Bldg., Pittsburgh If- 22, Pa. t}= Heller, Enrique, c/o Casilla 406, Lima, Peru ft Helliesen, Richard O. (S), Box CC, Alfred, N. Y. A Hellriegel, Edgar J., 986 Hale St., Apt. B, Pottstown, Pa. S Helm, David F., Mellon Institute, Pittsburgh 13, Pa. A Helser, Perry D.,*t 3604 Rosemary Ave.. Glendale 8. Calif, if Helz, Armin W., 20 Maryland Ave., Gaithersburg, Md. Hemberg, Per, Surte Glasswork, Surte, Sweden If Hemphill. R. W,, Colonial Insulator Co., 947 Grant St., Akron fe 11, Ohio Hemsteger, Samuel E.,t 525 E. 14 Mile Rd., Birmingham, Mich. Henderson, Frederick C.,*t Royal China, Inc., Sebring, Ohio Henderson, James L., Jr., Robinson Ventilating Co., Zelienople, Pa. t Henderson, William W., Robinson Ventilating Co., Box 267, Zelienople, Pa. ' Hendren, Robert R.,t 105 Bank Ave., Riverton, N. J. Hendryx, Dwight B., 6621 Darlington Rd., Pittsburgh 17, Pa. Henly, H. Maynard, 1376 River Ave., Pittsburgh 12, Pa. Henrar, J. M. G., N. V. Porselein en Tegelfabriek MOSA Maastricht, Meerssenerweg, Maastricht, Netherlands Henrv. Edward C..*` 1121 Westmoreland Ave., Syracuse 10, N.Y. ' Henry, Frank R.,* Simonds Worden White Co., N. Summit St. & Negley Place, Dayton 7, Ohio ) Henry, George R., 3349 Altherton Dr.. Pittsburgh 34, Pa. ; Henry, Georges, a/s Union des Verreries Mecaniques Beiges, i 41, Quai de Brabant, Charleroi, Belgium Henry, Kenneth M.,* Kimble Glass Co., Box 1035, Toledo 1, Ohio . Henrv. O. James, Pittsburgli Plate Glass Co., 632 Ft. Duquesne Blvd., Pittsburgh 22, Pa. Hense. O. P., Eagle Picher Co., American Bldg., Cincinnati 1, Ohio Hensler, J. R,, IH Dept., Bausch & Lomb Optical Co., Rochester 2, N. Y. Henson, Charles W., Norton Co., Worcester 6, Mass. Henson, W. H., 65 Whitman Rd., Worcester 5, Mass. Henwood. Reginald J., 9444 Lynnhaven Rd., Cleveland 29, Ohio Hepler, Ernest C., 329 Andover Rd., Fairless Hills, Pa. Hepplewhite, J. W.,*t 3637 Farland Rd., University Heights, Cleveland 18, Ohio Herbert. John S.. 174 Third Ave. N., Nashville 3, Term. Herbert. John W., 3492 W. 100 St., Cleveland 11, Ohio Herger, Howard C., Pierce Glass Co., Port Allegany, Pa. Herko. Edward! (J), 191 Fairfax Rd., Rochester 9. N. Y. Herold. Paul G.*l Missouri School of Alines, Rolla, Mo. Herpel, Clarence M., Cherokee Station, Box 5. Louisville 5, Ky. Herring, Leon P. (.S), Box 143, Dillon, S. C. Herron, Robert H. (J), 1634 N. Ironwood Dr., South Bend, Ind. Wertzell, E. A., 1111 Chestnut St., Dover, Ohio !jess, F. B., Brockway Glass Co., Inc., Brockway, Pa. Hws. Robert L., 44 Hess Blvd.. Lancaster. Pa. Hessinger. Philip S9 (J), Box 8448, Wright Air Development Center, Wright-Patterson AFB, Dayton, Ohio Vr".. 32, No. 10 (197)3) Heuer, Russell P.,* General Refractories Co., 1520 Locust St., Philadelphia 2, Pa. Hewitt, Arthur E., Spode Works, Stoke-on-Trent, England Hewitt, L. .C.,*t Laclede-Christy Co., 4705 Ridgewood Ave., St. Louis 16, Mo. Hewlett,: James T., Ingram-Richardson Mfg. Co., Frankfort, Ind. Hicks, James C., 157 Jolly Court, Mountain View, Calif. Hicks, John F. G., 131 Hornby Dr., Painted Post, N. Y. Hicks, Robert G., Maple Crest 3rd Subdivision, Whiteland, Ind. Hiernaux, Marcel, 2, Lgue rue dArgile, Anvers, Belgium Higgins, Ray, 191 Overlook Ave., Wadsworth, Ohio Higgins, Waldo W.,*t 655 S. Harrison Ave., Kankakee, 111. Higgs, Harold P., Jeffers Electronics Div., Speer Carbon Co., DuBois, Pa. Higman, John W.,. Co. (Robert J. Stone), 24 State St., New York 4, N. Y. Hildebrand, David (J), R. R. 1, c/o Gold Point Marina, Hixson, Tenn. Hill, Dudley A., U. S. Testing Co.,- Inc., 1415 Park Ave., Hoboken, N. J. Hill, Ercell C.,*t 210 W. Ridley Ave., Ridley Park, Pa. Hill, John R., 403 Edgewater Apts., Charleston, W. Va. Hilling, James L., Jr. (S), 129 Maple Ave., Altoona, Pa. Hinckley, Arthur T., Oldbury Electro-Chemical Co., Niagara Falls, N. Y. Hind, Stanley, "The Mount," Etruria Rd., Basford, Stoke- on-Trent, England Hindes, Stanley V., 88 Union Ave., Pittsburgh 5, Pa. Hinds, H. Clark, The Harker Pottery Co., East Liverpool, Ohio Hines, Robert A., 1722 Del Norte Ave., St. Louis 17, Mo. Hinkins, E. A., Tygart Valley Glass Co., Washington, Pa. Hintze, Wollmar, W: son, Agatan 12 A., Bromolla; Sweden Hirssig, Carl F., 4554 Westway, Toledo 12, Ohio Hirst, Robert G., 1100 Cumberland Ave., Syracuse, N. Y. Hiscock, Harley J., Fuller Mferriam Co., Box 69, West Haven, Conn. Hitchins, R. A., National Refractories Co., Inc., 17th Floor, Lewis Tower Bldg., 225 S. 15th St., Philadelphia 2, Pa. Hoagbin, Joseph E., 1200 W. Cross St., Ypsilanti, Mich. Hoare, Henry A., 2655 Sharondale Dr. N. E., Atlanta, Ga. Hobson, Joe P., Box 708, Denton, Texas Hockaday, R. B., General Delivery, Richlands, Va. Hocker, C. Richard, 15 Pearl Rd., Naugatuck, Conn. Hocking, William J., 1612 Pennsylvania Ave., East Liverpool, Ohio Hodgdon. Frank B., Box 4132, N. Chattanooga Sta., Chatta nooga 5, Tenn. Hodson, George N., The Hall, Wymeswold, Near Lough borough, England Hoehl, Joseph W., Wolverine Porcelain Enameling Co., 3350 Scotten Ave., Detroit 10, Mich. Hoelscher, Max W., 5010 Mayfield Rd., Lyndhurst 24, Ohio Hoenig, Clarence L. (S), 319 Bailey Rd., Crystal City, Mo. Hoeppner, W. L., Latchford-Marble Glass Co., Box 4707, Flor ence Branch, Los Angeles 1, Calif. Hoffman, Carl R. (J), 1308 Seventh St., Moundsville, W. Va. Hoffman, Lewis C., 213B Thomas Dr., Monroe Park Apts., Wilmington, Del. Hoffman, Sidney C., 2020 Margaret Ave., Scranton, Pa. Hoffman, Willard H. J., 8 Dungarrie Rd., Baltimore 28, Md. Hoffner, Jere R., T. C. Wheaton Co., Millville, N. J. Hofstetter, G. W., Ferro Corp., 336-338 N. Central Ave., Chi cago 44, 111. Hogan, Thomas W., Flintridge China Co., 380 S. Raymond Ave., Pasadena 2, Calif. Hogendobler, H. R., Fiberglas Contracting & Supply Co., 4610 Smith Rd., Cincinnati 12, Ohio Hogenson, William, Chicago Vitreous Enamel Product Co., 1427 S. 55th Court, Cicero 50, 111. Hohmann, Frederick R., 1012 Parkview Ave., New Kensing ton, Pa. Holdener, Irwin K.,t Hill Too Tr. Ct., Bedford, Ohio Holl, Barton A., Logan Clay Products Co., Logan, Ohio Holl, Barton S.J 479 E. Main St., Logan, Ohio Holler, Robert W. (J), Bausch & Lomb Optical Co., 635 St. Paul St., Rochester 2. N. Y. Holley, Kenneth E., 113 Pritchard Ave., Corning, N. Y. Holmes, John M., Lee Brick & Tile Co., Sanford, N. C. Holmes, Lyle A., Apt. 3, 49 Parke St., Crafton 5, Pa. Holmstrom, Joseph H.,t 4316 Cedar Ave., Minneapolis, Minn. Holscher, H. H.,* Owens-Illinois Glass Co., Administrative Research, 1700 Westwood Ave., Toledo 1, Ohio Holst, Tage, Vinkelvej lo, Kongens Lyngby, Denmark Holterhoff, A. Gray, 307 E. Fourth St., Cincinnati 2, Ohio Hommel, O., Co., (E. M. Horarael), Box 475, Pittsburgh 30, Pa. Hommel, E. M., O. Hommel Co., Box 475, Pittsburgh 30,_ Pa. Honsberg, Werner, Apartado 508, Mexico D. F., Mexico Roster 31 .i l Clyde, 1800 Keith Bldg., Cleveland 15, Ohio ' Hood' Harrison R,* 260 Delevan Ave., Corning, N. Y. awioer, Bradford, 5 Point O'Woods Lane, Darien, Conn, trover, Charles H., 609 Wilton Rd., Towson 4, Md. u nikins, C. R., Jr., Hopkins Bros., Box 897, Alliance, Ohio i^Unokins, Robert W., Calumite Co., Box 151, Hamilton, Ohio u irak. William,*t 223 Raymond Rd., West Hartford 7, Conn. ; William F. (S), B. F. Drakenfeld & Co., Inc., Research uid Development Lab., Washington, Pa. Horidischer, Harvey W., 377 W. Brockton, Royal Oak, Mich. Horning, Roy A.,*t Armstrong Cork Co., Lancaster, Pa. Hornung. Martin R.,t 140 E. Sheridan Ave., New Castle, Pa. unni>er, R- T., Hanovia Chemical & Mfg. Co., 1 W. Central ^ve.. East Newark, N. J. Horton, Paul B.,t Locke Dept., General Electric Co,, Box 57, Baltimore 3, Md. Hossenlopp, Arthur M.j 28 Kendall Ave., Maplewood, N. J. Hostetler, Stanley F., Univis Lens Co., 401 Leo St., Dayton 1, Ohio Hostetter, J. C.,*t 1561 Dale Ave., Winter Park, Fla. Houchins, Henry R., Carborundum Co., Niagara Falls, N. Y. Houdeshell, Robert J., 215 Basswood Ave., Apt. B, Dayton 5, Ohio Hough. James T. (SI, 656 Llewellyn Place, Charlotte, N. C. Houghton, Amory, The Knoll, Corning, N. Y. . Houlahan, C. -A., Builders Brick Co., 3800 Ninth Ave. S,, Seattle, Wash. Houska, Joseph L., 707 Noble St., Norristown, Pa. : Housman, George S., Box 17, Norristown, Pa. ; Houze, Armand L., Sr., L. J. Houze Convex Glass Co., Point it; .. Marion, Pa. IcHouze, Armand L., Jr., L. J. Houze Convex Glass Co., Point t Marion, Pa. Houze, L. J., Convex Glass Co. (Armand L. Houze, Sr.), Point Marion, Pa. Howat, Walter L.,* 85 Hopping Ave.. Staten Island 7, N. Y. Howatson, John, Box 11, Corning. X. Y. Howatt, Glenn, Bldg. 6B, Apt. 3, Redfield Village, Metuchen, N. J. , ,. Howe. Elroy E.p Chicago Vitreous Enamel Product Co., 1401-- 47 S. 55th Court, Cicero 50, 111. Hower, Lawrence D., Jr.,f Raybestos Div., 75 E. Main St., Strat ford. Conn. Hower, R. S., Allen Bradley Co., Milwaukee, Wis. Howie, Thomas W., Campbell & Co., (Roughcastle) Ltd., Roughcastle Works, Falkirk, Scotland Hoyet. Eugene, R. R. 2, Box 332, Tarentum, Pa. Hsu, Ku-hua, 65 Austin Rd. Ground Floor, Kowloon, Hong kong Hsu. P. C., Taiwan Tobacco & Wine Bureau, Bottle Plant, Ching-Mai, Taipei District, Taiwan, China Huber, George S. (J), 509 F Castle Dr., Baltimore 12, Md. Huber, Harold V., 1300 Rancho Rd., Arcadia, Calif. Huber, J. M., Corp. (H. F. Jones. Ir.). 100 Park Ave.. New York, N. Y. Hubler. William G., Lakefield Research, Ltd., Box 430, Lakefield, Ont., Canada Hudson, Charles J.. 74 Newton St., W. Boylston, Mass. Hudson Supply & Equipment Co. (H. W. Heine), 1727 Penn sylvania Ave. N. W., Washington 6, D. C. Huettig, Fred R.,t 21-B-3 Redfield Village, Metuchen, N. J. Huftcut, Harold W., Westinghouse Elec. Corp., Electronic Tube Div., Box 284, Elmira, N. Y. Hufford Machine Works, Inc. (H. P. Smith, Jr.), 1700 E. Grand Ave., El Segundo, Calif. Hughes, George B., 710 Plum St., Erie, Pa. Hughes, Walter M.,t 534 Putnam Ave., Zanesville, Ohio Hui. William L. C., 2516 S. Washington St., Marion, Ind. Hull Pottery Co., (J. Brannon Hull), Crooksville, Ohio Hull, J. Brannon, Hull Pottery Co., Crooksville, Ohio Hulse, Charles O. (S), 3337 Ing. Sq,, Box 361, Scott AFB, 111. Hunienik, Michael, Jr., 20613 W. Chicago Detroit 29. Mich. Hummel, Floyd A., School of Mineral Industries, Pennsyl vania State College, State College, Pa. Hummel, Richard, 615 Olympia Rd., Pittsburgh 11, Pa. Hummel, Roy, 4318 Grantley Rd., Toledo 13, Ohio Hummers, William S., Jr., Mellon Institute, 4400 Fifth Ave., Pittsburgh 13, Pa. Humphrey, Kenneth F., 67 Crestwood Ave., Kitchener, Ont., Canada Humphrey. Richard A., Mycalex Corp. of America, 60 Clifton Blvd., Clifton, N. J. Humphrves Mfg. Co. (W. G. Moore). 201 E. Fifth St., Mans field, Ohio Hund, George J., Columbia Dr., Chester, W. Va. Hunt, Charles W., 154 Vincent St., Chagrin Falls, Ohio Hunt, Frank S.p 2494 Page Dr., Altadena, Calif. Hunt, George, General Steel Wares, Ltd., 199 River St., Toronto, Ont., Canada vl. 32, No. 10 (1953) Hunt, Herbert J., Kimble Glass Co., Vineland', N. J. Hunt, John F.,t Orefraction, Inc., 7425 Thomas St., Pitts burgh 8, Pa. Hunter, Charles E., 55 Henrietta St.-, Asheville, N. C. Hunter, Richard S., 5421 Brier Ridge Rd., Falls Church, Va. Hunting, Everett C.,t 2333 Channing Way, Apt. 25, Berkeley 4, Calif. Huppert, Paul A.)t 115 Granger St., Canandaigua, N. Y. Hurd, Burgess M., 506 14th Ave., New Brighton, Pa. Hurlbut, Wendell Pi, III (S), 2105 Sunset Ave., Seattle 6, Wash. Hurley, Robert C. (S),_ Porcupine Plain, Sask., Canada Hursh, Ralph K.,*t University, of Illinois, Urbana, 111. Hurst, Erwin J., Research Dept., Plant 3, General Ceramics & Steatite Corp., Keasbey, N. J. Hurst, Thomas L., Monsanto Chemical Co., Columbia, Tenn. Hutch, Herbert T., 421 Parker St., Newark 4, N. J. Hutchison, Clark, 709 E. Armstrong St., Frankfort, Ind. Hutchison, R. C.,t 2133 Newton Ave., Bethlehem, Pa. Hutt, Glenn A., 19629 Scottsdale Blvd., Shaker Heights 22, Ohio Hutt, Gordon M., Canadian Pacific Railway, Rm. 703, Wind sor Sta., Montreal, Que., Canada Huyck, L. G., Huyck Construction Co., 2946 N. 78th Court, Elmwood Park 35, 111. Hvid, Niels, Aktieselskabet Bing & Grondahls Porcellaensfabrik, 95, Valby Langgade, Copenhagen, Valby, Denmark Hyatt, Edmond P., Dept, of Geology, Brigham Young Uni versity, Provo, Utah Hyde, Collin,t 581 Oxford St., Worthington, Ohio Hyland, J. A., .-Pacific Coast Borax Co., 2295 Lumber St., Chicago 16, 111.' Hynes, Frank J.,t Oxbow Rd., South Lincoln, Mass. Hyslop, Joseph :F., "Dromore," Major's Loan, Falkirk, Scot land I lander, J. Richard, Pacific Coast Ceramic News, 2711 Bowmont-, Dr., Beverly Hills, Calif. Ichikawa, Yoshio (S), Box 102, Alfred, N. Y. Ihrig, Allen C., Jr., 222 Decatur St., Corning, N. Y. lies, Ramon R., 2223 St. James Ct., Owensboro, Ky. Iliff, Fred K., Harshaw Chemical Co., Jackson & Swanson Sts., Philadelphia, Pa. Illing, Arno M., 5412 Laconia, Cincinnati 37, Ohio Illinois Clay Products Co. (Otis L. Jones), 68 N. Chicago St., Joliet, 111. Illyn, Alexis V. (S), 183 Bevier Rd., University Hgts., New Brunswick, N. J. Imhoff, Edward J., United States Glass Co., Glassport, Pa. Immediate, Robert R. t (J), 40 Caryl Ave., Yonkers 5, _N. Y. Imperial Glass' Corp. (C. J. Uhrmann), Bellaire, Ohio Indian Ceramic Society, Dept, of Ceramics, Benares Hindu University, Benares, India Indiana Glass Co. (Charles L. Gaunt), Dunkirk, Ind. Industrial Ceramic Products, Inc. (W. E. Cramer), 965 W. Fifth Ave., Columbus 8, Ohio Indyk, Albert D. (S), 21 Birriga Rd., Bellevue Hill, Sydney, N. S. W. Australia Ingersoll, Harry, 5429 N. Tyler Ave., Temple City, Calif. Ingham, David, 2794 St. Clair Ave., East Liverpool, Ohio Insley, Herbert,* National -Bureau of Standards, Washing ton 25, D. C. Insley, Robert H., Champion Spark Plug Co., Ceramic Div., 8525 Butler Ave., Detroit 11, Mich. International Ceramic Mining, Ltd., 54 Wellington St. W., Toronto, Ont., Canada International Clay Machinery Co. (R. H. McElroy), 1145 Bolander Ave., Dayton, Ohio International Commission on Glass, B. P. Dudding, Re search Laboratories, General Electric Co., Ltd., Wembley, Middlesex, England International Minerals & Chemical Corp., Consolidated Feld spar Dept. (H. B. DuBois), Erwin; Tenn, Ireland, John, International Tin Research Council, Fraser Rd., Greenford, Middlesex, England. Ironton Fire Brick Co. (J. H. Rickey, Jr.), Box 124, Ironton, Ohio Irvine, George C.,t Canadian Carborundum Co., Ltd., Niagara Falls, Ont., Canada Irwin, Joseph T., 1618 Elmwood Ave., Lakewood 7, Ohio Irwin, Philip P., Potters Supply Co., East Liverpool, Ohio Irwin, William W., Potters Supply Co., East Liverpool, Ohio Isaacs, Richard P., 78 Elmwood Dr., Livingston, N. J. Isagawa, Jun, Nippon Toki Kaisha, Ltd., 1, Noritakeshinmachi, Nishiku, Nagoya, Japan Isenhour, C. W,, Jr., Box 1249, Salisbury, N. C. Isenhour, John H.,* 215 Confederate Ave., Salisbury, N. C. Roster 33 ni Virgilio, Ceramica Sao Caetano S/A, Caixa Postal 278, >21' Paulo, Brazil . s ghozo, Nippon Gaishi Kaisha, Ltd., 1, 2-Chome, Horita- *lori, Mizuho-ku, Nagoya, Japan jjjchner, Rbert, Tannenrauchstrasse 106, Zurich 38, Switzer- jv^Hjohn B., 18 Standish St., Frostburg, Md. lCkcl. Roland D., 6700 N. Williamsburg Blvd,, Arlington 13, JaVa. Vitrified China Co. (Philip R. Distillator), 2 West JlfPelham Manor 65, N. Y. Jackson. A. Curtis,*! 750 S. Clayton St., Denver, Col. Jackson, James, "Ashgrove," St. Andrews Ave., Bothwell, ' Lanark, Scotland Jackson, L. P., Mid-West Abrasive Co., Owosso, Mich, lickson, Mary A., Apt. 3, 1313 Grove St., Berkeley, Calif. Dickson, Wharton, Petroleum Bldg., 714 W. Olympic Blvd., - Los Angeles 15, Calif. Jackson, William M., II, 32 Oakland St., Watertown, Mass. Jacob, Bernard T., National Crucible Co., Philadelphia 18, Pa. Jacobs, Charles W. F., 19 A Longmeadow Rd., Eggertsville 23. N. Y. 'Jacobs, H., Box 117, Vereeniging, Transvaal, Union of South ' Africa -Jacobs, Louis J., Ramtite Co., 2563 W. 18th St., Chicago 8, 111. 'Jacobs, Richard A., Brockway Glass Co., Inc., Brockway, Pa. /Jacobson, Edwint (J), Corning Glass Works, Corning, N. Y. iiacoby, William R. (S), 215 Adelaide Ave., Highland Park, . N. J. (jaffe, Bernard,t 1446 Kanawha St., Hyattsville, Md. sjansma, Frank, B. F. Drakenfeld & Co. Inc., Washington, Pa. SJanssen, William F., IS Oak Ridge Rd., Basking Ridge, N. J." Jasani, Mahendra R. (S), 198 Jamshedji Tata Rd., Bombay 1, j India ( Jasper, Stanley J. (S), General Delivery, Alfred, .N. Y. /Jeffers, Phillip Eugene (J), Box 125, Gardner, 111. - Jeffrey, Benjamin A., Box 32, Tumacacori, Ariz. /Jeffrey, G. H., Roder Ceramic Studio, 1331 Race St., Philadelphia 7 7. Pa. ; Jelinek, James W. (S), 1203 Seventh Ave., Marion, Iowa JJenks, C. E., W. S. Tyler Co., 3615 Superior Ave., N. E., k Cleveland 14, Ohio i Jennings, James W., Quaker Silver Co.. North Attleboro, Mass. ; Jensen, Edwin K., 3654 Old York Rd., Baltimore 18, Md. -Jeppson, George N.,* Norton Co., Worcester 6, Mass. Jeppson, John, 40 Westwood Dr., Worcester, Mass. Jero, Parker, 119 Riverview Ct.. CMR 158, Peoria Heights, 111. Joeckel, Stanley V., American Fused Quartz Co., Dover, N. J. Johns-Manville Sales Corp. (J. C. Crawford, Jr.), 22 E 40th St., New York 16, N. Y. Johnson, Alexander .H-, H. L. Brisbane & Wunderlich, Ltd., Lord St., East Perth, West Australia Johnson, Alton E.,t 2062 N. Ludington Ave., Wauwatosa 13, Wis. Johnson, A. L.,* Universal-Rundle Corp., Box 960, New Castle, Pa. Johnson, A. M., Ross-Tacony Crucible Co., Tacony, Phila delphia 35, Pa. Johnson, Arnold G., 7287 Thomas Dr., Maderia, Ohio Johnson, Ben (S), Box 485, Rolla, Mo. Johnson, Boyd M., Carborundum Co., Box 268, Perth Amboy, . N. J. Johnson, Delmar A., 94 E. Third St., Corning, N. Y. Johnson, Fred H., Jr., Summitville, Ohio Johnson, George E., Jr.,t Gladding, McBean & Co., Pittsburg, Calif. Johnson, Gordon H., 5425 Knollwood Dr., Apt. 4, Parma 29, Ohio Johnson, Harold C., Corning Glass Works Laboratory, Cor ning, N. Y. Johnson,. J. A., Service Engineers, Ltd., Leek New Rd., Co bridge, Burslem, Stoke-on-Trent, England Johnson, James R.J 109 Newberry Circle, Oak Ridge, Tenn. Johnson, Lee J., Alexander Rd., Box 43, Princeton Junction, N. J. Johnson, LeRoy A., 1206 Cleveland St., Evanston, 111. Johnson, Paul V., Structural Clay Products Research Founda tion, 20 N. Wacker Dr., Chicago 6, 111. Johnson, Richard C. (S), 4 Perine St., Dansville, N. Y. Johnston, J. G., The Leeds Fireclay Co., Ltd., Wortley, Leeds 12, England Johnston, James K., R. R. 5. Hagerstown, Md. Jones. Cecil M., II, 2814 Jordan St,, Fleming Heights, Augusta, Ga. Jones, Edgar, 426 Old Lancaster Rd., Haverford, Pa. Jones, Frank L., Windsor Rd., Fox Chapel, Pittsburgh 15, Pa. Voi.. ;j2, No. 10 (1953) Jones, George A., Box 112, East Sparta, Ohio Jones, Harlow G., Mid West Abrasive Co., 510 S. Washington St., Owosso, Mich. Jones, H. F., Jr., J. M. Huber Corp., 100 Park Ave., New York, N. .Y. :. Jones, Howard E., Jr., 19150 Robson, Detroit 35, Mich. Jones, Maynard J., Pfaudler Co., 1000 West Ave., Rochester 11, N. Y. Jones Metal Products Co., West Lafayette, Ohio Jones, Otis L., Illinois Clay Products Co., 68 N. Chicago St., Joliet, 111. ' Jones, Paul R., Mineral Industries Bldg., West Virginia University, Morgantown, W. Va. Jones, Richard E;, Pittsburgh Plate Glass Co., Research Laboratory, Creighton, Pa. Jones, Robert O., Box 3, Gabbs, Nev. Jones, Lt. Col. Rodney A., Headquarters ARDC, Box 1395, Baltimore, Md. . Jontz, Melvin L., United Clay Mines Corp., 5028 Alhambra Ave., Los Angeles 32, Calif. Jordan, Duane R. (S), 220 Belmont Ave.,. Oneida, N. Y. Jordan, John N., Consumers Glass Co., Ltd. Box 456, Sta. B, Montreal, P. Q., Canada Jordan, John W., Baroid Sales Div., National Lead Co., Box 1675, Houston 1, Texas. Jordan, R. E., Jr., Mosaic Tile Co., Zanesville, Ohio Jordan, Thomas B., Mosaic Tile Co., 829 N. Highland Ave., Hollywood 38, Calif. Jordan, William M., Weber Dr., R. R. 11, Pittsburgh 15, Pa. Joseph, A. David (S), Box 3, Alfred, N. Y. Jova Brick Works (j. L. Jova), Roseton, N. Y. Jova, J. L., Jova Brick Works, Roseton, N. Y. Joyner, Bobby L., 203 Lighthouse St., Erie, Pa. Juelss, David, American Lead Pencil Co., 500 Willow Ave., Hoboken, N. J. Kadey, Frederic L., Jr., 1825 Quimby Lane, Westfield, N. J. Kaelke, E. K., 411 W. Calhoun St., Macomb, 111. Kahlson, W. S., General Electric Co., Lamp Dept., Pitney Glass Works, Nela Park 12, Cleveland Ohio Kaiser, Alan D. (S), Alfred University, Box C-C, Alfred, N. Y. Kallauner, Otakar, Statni vyzkumny ustav silikatory, Zizkova 7, Brno, Czechoslovakia Kallstedt, C. H., Public Service Co. of Northern 111., 50 Fox St., Aurora, 111. Kallup, Charles, Jr. (S). Box 716, Alfred, N. Y. Kalman, Frank R.,t 2808 Mayfield Rd., Apt. 405, Cleveland Heights 18, Ohio Kalousek, George L.. 2633 Merrimac Blvd., Toledo 6, Ohio Kamich, Barnet Z., 11 Garwood St.. South River, N. J. Kane, John L., 7050 Glen Meadow Lane, Cincinnati, Ohio Kantner, Ogden A., R.R. 1, Pennington, N. J. Karkhanavala, M. D., 239 Botawala Bldg., Tardeo, Bombay 7, India Kast, Henry G. (S), Box FF, Alfred, N. Y. Kasten, Vernon L.,t Three Oaks, Box 84, Jackson, Mo. Katnack, Fred, Jr. (S), Box CC, Alfred, N. Y. Katz, Joseph M., General Ceramics & Steatite Corp., Crows Mill Rd., Keasbey, N. J. Katz, Sigmund, Orange Ceramic Lab., 17 Kenz Terrace, West Orange, N. J. Kauffman, John R.,*t Tuttle & Kift, Inc., Subsidiary, Ferro Corp., 1823 N. Monitor Ave., Chicago 39, 111. Kautz, Karl,*t 754 Rotch Ave., N. E., Massillon, Ohio Kawaguchi, Tad,t Republic Steel Corp., 6100 Truscon Ave., Cleveland, Ohio Kav, William L., E. J. Bartells Co., 1212 Sixth Ave., Seattle 4, Wash. Kaylor, William B. (S), Box 4337, Virginia Tech. Sta., Blacksburg, Va. Kavser, Julius A., Gladding, McBean & Co., 2901 Los Feliz Blvd., Los Angeles 39, Calif. Keaney, J. C., 1201 Banksville Rd., Pittsburgh 16, Pa. Keat, Paul P. (S), Ceramics Bldg., Rutgers University, New Brunswick, N. J. Kebler, Leonard,. Ward-Leonard Electric Co., Mt. Vernon, N. Y. Keener, Harry J., General Color & Chemical Co., Inc., Box 7, Minerva, Ohio Keith, Wendell P.,t 1234 E. Sixth St., Whittier, Calif. Kellenberger, George E., Niles Glass Works, 403 N. Main, Niles, Ohio Keller, Francis, Pfungen, Switzerland Kelley, J. A., Zonolite Co., Travelers Rest, S. C. Kelly, Austin J., 224 Glasgow St., Guelph, Ont., Canada Kelly, George D.,t (J), 622 Center St., St. Marys, Pa. Kelly, Hal J., 4714 20th N.E., Seattle 5, Wash. Kelly, John V., Kaiser Steel Corp., Box 217, Fontana, Calif. Roster 35 k'-llv, William J., Box 188, Hondo, Texas :h^u'ey, V. V.,* Dominion Minerals Inc., Piney River, Va. klton' Stanton C., Jr., Rohm and Haas Co., Bristol, Pa. Kmu John A., Jr., 22509 Gaycrest Ave., Torrance, Calif, {r.mo'f, William C.,! 28 Homer Place, Metuchen, N. J. Ir.naey. William L.,f Huntingdon Valley, Pa. 'Knau, Wilfred M. (S), R.R.2. Clinton, N. C. o.ndrick, Robert W. (S), 21-A Vetviile, State College Sta., Raleigh, N. C. Kendrick, Thomas B., Lancaster Lens Co., 220-226 W. Main gt., Lancaster, Ohio tvnn'aday, Clinton R., R. R. 4, New Castle, Pa. Rent Joseph P.,t 247 Starr St., Brooklyn 37, N. Y. tfent' N. Johnson,! Johns-Manville Sales Corp., 22 E. 40th St., NNe'w York 16, N. Y. Kent William B.,t W. S. George Pottery Co., Canonsburg, Pa. Kentucky Clay Mining Co. (W. J. Watkins), Mayfield, Ky. Kentucky-Tennessee Clay Co. (Chester Gulick), 807 City Savings Bldg., Alliance, Ohio Re'in'orthy, Orville O., 1472 Cordova Ave., Lakewood 7, Ohio Kenya Kyanite, Ltd., 28 Eccleston St., London, S. W., England Kenyon, Clark, Frenchtown Porcelain Co., Frenchtown, N. J. Kenka George M., Braun Corp., 2260 E. 15th St., Los Angeles 21. Calif. Keplinger, Robert B.,*f 219 17th St., N.E., Canton 4, Ohio Kerla. Hans, 525 Beaumont Ave., Baltimore 12, Md. Kerper. Matthew J., National Bureau of Standards, Washing- i ton. D. C. 'Kerr, Charles H.,* 2861 Chatsworth Blvd., San Diego 6, Calif. Kerr, W. Raymond,*! Armstrong Cork Co., Box 441, Beaver j Falls, Pa. Kershner, William G.,! 117 S. 14th St., Olean, N. Y. Kibler, H. W., Southern Potteries, Inc., Box 279, Erwin, ; Tenn. sKiehl, Harry R., 223 Chemung St., Corning, N. Y. iKiesow, Paul F. (J), 243V College Ave., Elmira Heights. Elmira, N. Y. (Kilgore Ceramics Corp. (D. H. Walkup), Box 1619, Kilgore, A Texas Killinar, Henry M.,t 107 Park Lane. River Oaks, Fair Haven. > N. J. tKimble Glass Co. (H. R. Black), 2626 Dorr St., Toledo, Ohio Kimes, A. W., National Glass Budget, 800 Grogan Bldg., 541 Wood St., Pittsburgh 22, Pa. '-Kimpel, Raymond R., 1761 Harvard St., N. W., Washington 9, D. C. `Kimpel, Robert F., 1138 N. Alameda Ave., Azusa, Calif. (King. Burnham W., Jr.,*f 2564 Welsford Rd., Columbus, 21, Ohio King, Charles B., 189 Cedar St., Corning, N. Y. King, Harry M. (S), Friley Hall, Ames, Iowa King, Maxon H., Hill Blvd., East Liverpool, Ohio King, R. M.,*l Lord Hall, Ohio State University, Columbus 10, Ohio King, Robert G., 143 N. Center St., Grove City, Pa. King, Walter F., Spruce Terrace, Portland, Conn. Kingery, W. D. (J), Ceramics Div., Mass. Inst, of Tech., Cam bridge, Mass. Kingman, W. W., Georgia Pigment Co., Sandersville, Ga. Kinsman, Bradley Q.f (J), 905 DeKalb St., Norristown, Pa. Kinzie, C. J.,* Box 245, Youngstown, Niagara County, N. Y. Kircher, Paul J., Maryland Glass Corp., 2147 Wicomico St., Baltimore 30, Md. Kirchner. Henry P. Jr. (S), Box 213, Pine Grove Mills. Pa. Kirk, Edwin, U. S. National Museum, Washington 25, D. C. Kirkendale, G. A.,! Dept, of Ceramic Engineering, New York State College of Ceramics, Alfred, N. Y. Kirkpatrick, Frank,*! 41 Fifth St.. Apt. C., Hermosa Beach, Calif. Kirsch. Alfred J., 48 Center St., Hornell, N. Y. Klane, Frank, Corning Glass Works, Corning, N. Y. Klaus, Irving, 19-B Hawthorne Dr., New Brunswick, N. J. Klaus. Sol C:, Tr., 50 S. Munu Ave., Ant. 804, East Orange. X. J. Klausmann. H., Baker & Co.. Inc.. 113 Astor St., Newark, N. J. Kleeman, Lee A., Box 568. New Orleans 7, La. _ Kleiman, Martin M. W., 270 Selkirk Ave., Winnipeg, Man., Canada Ktekotka, Joseph F., 3601 Reed St., Philadelphia 46, Pa. Kleymeyer, Clifford A., Standard Brick and Tile Corp., Evans ville 8, Ind. Kliman, Morton I. (S), 6 Sutton St., Mattanan 26, Mass. Kline, Hugh L,, Corhart Refractories Co., Inc., 1600 W. Lee St., Louisville 10, Ky. Klinefelter, T. A.,*! Box 201, Norris. Tenn. Klipper, Joseph, Clipper Diamond Tool Co.. Inc., 21 W. 46th St., New York 36, N. Y. Klocke, Edward J., H. C. Spinks Clay Co., Inc., 1000 First Xational Bank Bldg., Cincinnati 2. Ohio . Kni,, :j2, No. 10 (1953) Klockner, Herman Richard, Research Laboratory, Universal- Rundle Corp., New Castle, Pa. Knapp, Robert C., 26 Virginia Ave. N. W., Glen Burnie, Md. Knapp, Thomas E., 1314 Wilmington Ave., New Castle, Pa. Knapp, William J.,! Dept, of Engineering, University of California, Los Angeles 24, Calif. Knauft, Robert W., Charles Taylor Sons Co., Box 58, Annex Sta., Cincinnati 14, Ohio Knecht, Albert O.,! 201 Edgewood Ave., New Castle, Pa. Knight, E. H., Maurice A. Knight Sons Co., Box 150, Crooks- ville,' Ohio Knight, M. A., Jr., Maurice A. Knight, "Knight-Ware," Box 111, Akron 9, Ohio Knight, Maurice A., "Knight-Ware" (M. A. Knight, Jr.), Box 111, Akron 9, Ohio Knight, Mellen A., Central Research Dept., Minnesota Min ing & Mfg. Co., 367 Grove St., St. Paul 1, Minn. Knighton, Heywood J., 834 Trombley Rd., Grosse Pointe Park 30, Mich. Knizek, Jan O., Apartado 2739, Mexico, D.F., Mexico Knoblaugh, Walter C.,f 512 N. Washington St., Tiffin 9, Ohio Knowles, Edwin M., China Co. (W. L. Peskin), Newell, W. Va. Knowles, William V.,* 8905 Champlain Ave., Niagara Falls, N. Y.. Knowlton, Samuel H., 610 New Center Bldg., Detroit 2, Mich. Knox, James J., 5 Meinzer St., Avenel, N. J. -Knudsen, Friedrich P.,f 4205 Eastern Ave., Mt. Rainier, Md. Knudsen, Rolf, Borgestad, P. A., Norway Koch, Daniel O., 826 Crescent Dr., Rahway, N. J. Koch, Frank A., National Sales- Corp., 307 E. Fourth St., Cincinnati 2, Ohio '' Koch, M. R., Dept, of Fine Arts, Omaha University, 60th & Dodge Sts., Omaha, Neb. . Koch, Ing. Renato, Direttore Stabilimento Tubi Elettronici, Marconi S.I.P.A., Via Pile, L'Aquila, Italy Koch, William J., P. R. Mallory & Co., E. Washington St., Indianapolis 6, Ind. Kochanek, Michel (S), 1030 Douglas Rd., Lincoln Village, Stockton; Calif. Koehler, W. A.,! Mineral Industries Bldg., West Virginia University, Morgantown, W. Va. Koenig, Charles J.,*! Engr. Expt. Sta., Ohio State University, Columbus 10, Ohio Koenig, E. W., Consolidated Feldspar Dept., International Min erals and Chemical Corp., Erwin, Tenn. Koenig, F. J. M., 1053 Sunset Cliffs Blvd., San Diego 7, Calif. Koenig, John H.,*f Rutgers University, School of Ceramics, New Brunswick, N. J. Kohl, Hans, Leerbachstr. 117, Frankfurt A. M., Germany Kohler Co. (G. P. Gavin), Kohler, Wis. Kohler, Anthony M., Babcock & Wilcox Co., 161 E. 42nd St., _New York 17, N. Y. Kohman, Girard T., 133 Ashland Rd., Summit, N. J. Kohn, Joseph, Universal Dental Co., 48th & Brown Sts., Philadelphia 39, Pa. Kohne, Frank H,, 1700 Third Ave., New Brighton, Pa. Komac, Thomas N., Republic Steel Corp., 6100 Truscon Ave., Cleveland 4, Ohio Konopicky, Kamillo, Millstatt, No. 76, Kaernten. Austria Konowitch, Gilbert D. (J), 118 E. Pine Ave., Wildwood, N. J. Konrad, Howard E., 20 Brookside Ave., Apt. 1A, Somerville, N. J. Kooij, K., Chamotte Unie N. V., Tielerweg Geldermalsen, Holland.. Koos, E. K.,+ Sterling China Co., East Liverpool. Ohio Kopp Glass, Inc. (C. E. Leberknight), Box 8255, Pittsburgh 18, Pa. Koppers Co., Inc. (C. R. Austin), Research Dept. Koppers Bldg., Pittsburgh 19, Pa. Kora, Yosio, 2-chome, Katsuyama-Cho, Yahata, Fukuoka, Japan Koshuba, Walter J., General Electric Co.-ANP Project, Box 132, Cincinnati 15, Ohio Kowal, Leo B. (J), Canadian Pittsburgh Industries, Ltd., 60 . Blvd. St. Croix, Ville St. Laurent, Que., Canada Kowal, Paul J., 98 Idle Lane, Rochester 20, N. Y. Kowalka, Warren R., Libbey-Owens-Ford Glass Co., 1701 E. Broadway, Toledo 5, Ohio Kraft, C. W., Kraftile Co., Niles, Calif. Kraft, Donald E. (S), Co. A, 185th Signal Bn., Camp Polk, La. Kraft, Maurice M., Kraft Chemical Co., 917 W. 18th St., Chicago, 111. Kraft, Ralph G. (S), 4120 N. 135th St., Milwaukee, Wis. Kraftile Co. (C. W. Kraft), Niles. Calif. Kramer, William M., Adamston Flat Glass Co., Clarksburg, W. Va.' Kraner, Hobart M.,*! Research Dept., Bethlehem Steel Co., Bethlehem, Pa. Roster 37 eecr, John M., Valentine Fire Brick Co., Div. A. P. Green . (o. Woodbridge, N. J. jregi, James R., Jr. (S), Box S03S, Va. Tech. Sta., Blacksburg,. Va. irrehbiel, Frederick H., Accurate Pyrometric Cone Co., Pa- taskala, Ohio jCrehbiel, H. Orton, Accurate Pyrometric Cone Co., Pataskala, Ohio j^j-eidl, E. L., A. D. Little, Inc., 30 Memorial Dr., Cambridge, Mass. jCreidl, Norbert J.,* 40 Milford Rd., Rochester 10, N. Y. Kretschmar, Ernest, 101 S. Meramec Ave., Clayton 5, Mo. Rretzmer, Minor G., Jr., Box 32, Woodstock, Conn, k'riegel, William W.,t Ceramic Engineering Dept., N. C. State College, Raleigh, N. C. Kriger, Frederick S., 148 E. Second St., Corning, N. Y. jCrill, Karl E., Office of Ordnance Research, Box CM, Duke Station, Durham, N. C. Krishna, Murthy M. (S), Box 364, State College, Pa. Krochmal, Jerome J (.S), 935 N. Detroit St., Xenia, Ohio Kroeck, William H., Corning Glass Works, Box 544, Corning, N. Y. Krogstie, Lars B., Fredrikstad, Norway Kronman, Samuel J.,t Carteret China Co., High St., Carteret, N. J. Krosch, Donald K., Solaramic Dept., Solar Aircraft Co., 2200 Pacific Highway, San Diego 12, Calif. Kruesi, John, American Lava Corp., Chattanooga 5, Tenn. Krull, Alan R., Northwestern University, Technological In stitute Library. Evanston, Hi. Kruson, Joseph H., 79 W. Main St.. Frostburg, Md. Kuchler, H. C., E. I. du Pont de Nemours & Co., Inc., Elec:. trochemicals Dept., Wilmington 98, Del. Kuechler, A. H.t 435 Nutt Rd., Phoenixville, Pa. Kunzman, Edward E.,t 9185 E. Jaylee Dr,, Temple City, Calif. Kupinski, Thaddeus A., 17 Fulton St., Phoenix, N. Y. Kurkjian, Charles R. (S), Graduate House, Massachusetts Institute of Technology, Cambridge 39, Mass. Kurtz, Peter. Jr. (S'), 103 W. 14th St., Apt. 204, Rolla, Mo. Kyanite Mining Corp. (Gene Dixon), Cullen. Va. Kyonka, Joseph C.,! 8 N. Blount St., Madison 3, Wis. L L & L Mfg. Co. (Joseph Freeman), 804 Mulberrv St., Upland, Pa. Laboratorio Quimico Nacional, (Jorge Ancizar-Sordo) Ministerio de Minas y Petroleos, Apartado 2577. Bogota, Colombia Lachman, Irwin M.t (S), 32 N. Co-op Circle. Roosevelt. N. J. Laclede-Christy Co. (L. C. Hewitt), 4705 Ridgewood Ave., St. Louis 16, Mo. Laconich, Sixto G.. Porcelana Americana S. A., San Julian y Andes, Lomas de Zamora, F. C. N. G. R.. Argentina Ladoo, Raymond B., 42 Huntington Rd., Newton 58. Mass. Laing, Kenneth M.. Glass Research Laboratories, Pittsburgh Plate Glass Co.. Creighton, Pa. Laird, Charles,! Malvern Brick & Tile Co., Box 355. Mal vern, Ark. Laird, Robert K,, American Radiator & Standard Sanitary Corp., 834 E. Broadway, Louisville 4. Kv. LaMaire. Robert V.t (S), R.R. 2, Box 245. Plainfield. N. J. Lamb. O. ,H., Braun Corp., 2260 E. 15th St., Los Angeles 21, Calif. Lambe. C. M..t United States Gypsum Co., 300 W. Adams St., Chicago 6. Til. Lambertson, Wingate A., University of Toledo. Toledo 6. Ohio Lambie. J. M.. Findlay Clay Products Co., Washington, Pa. Landback, Charles R., Taylor, Smith & Taylor Co., Chester, W. Va. Lane. George J.. Edgar Plastic Kaolin Co., Edgar, FD. Lane, Richard O.,! 878 White Lake Rd.. Munith, R. R. 1. Mich. Lang. George F., Carr-Lowrey Glass Co., Box 356, Baltimore 3, Md. Lang, Richard L,, Ohio Fuel Gas Co., 17 N. Fourth St., Zanesville, Ohio Lang, Samuel G.. 3534 Spring View Dr., Cincinnati 26. Ohio Lang, S. M., 9718 Braddock Rd., Oakview. Silver Springs, Md. Lange, James M., Bethlehem Steel Co., Bethlehem, Pa. Lange, Louis A.. Industrial Heat Control Products, 641 Haw thorne Ave., S. Milwaukee, Wis. Lanier, William S., Babcock & Wilcox Co., Old Savannah Rd., Augusta, Ga. Lannes, Eugene M.,t 1001 Yearling Rd., Columbus, Ohio Lapp Insulator Co., Inc. (K. E. Stettinius), Le Roy. N. Y. Lapp, Grover W.,* Lapp Engineering Co., 68 W. Main St., Le Rov. N. Y. Lapp, William A.. Lapp Engineering Co., 68 W. Main St., Le Roy. N. Y. Larisch. Herbert W. (J), 46 Fairview Ave., Valley Stream, N. Y. vor.. .'32, No. 10 (1953) Larkin, Paul G., Larkin Tile Co., 1651 Pomona Ave., San Jose 10, Calif. . LaRocca, Frank J., Colorado Fuel & Iron Corp., Box 316, .' Pueblo, Col. Larson, Paul F., 15' Lincoln Ave., Dundee, 111. Lassman, Benjamin, Benjamin Lassman & Son, R.R. 8, Glen- shaw, Pa. Latchford-Marble Glass Co. (W. L. Hoeppner), Box 4707 Florence Branch, Los Angeles 1, Calif. Latimer,. Glen H., 202 Hancock Ave., Norristown, Pa. Latimer, Horace L.,t Box 282, West Lafayette, Ohio. Lattin, Judson M. (J), International Harvester Co., Wis consin Steel Works, 2701 E.. 106th St., Chicago 17, 111. Laughlin, Homer, China Co. (J. M. Wells), Newell, W. Va. Laughrey, James C.,_ 1007 Fourth St., North Braddock, Pa, Laurie, Dominic,t Titanium Alloy Div., National Lead Co., Niagara Falls, N. Y. Lawhead, Creighton M., 43 W. Sixth St., Corning, N. Y. Lawless, Emmett A., Jr., Acme Brick Co., Box 448, Malvern, Ark. Lawrence, Frederick P., Edwin Mr Knowles China Co., New ell, W. Va.. _ Lawrence, Howard O., Industrial Ceramics Ltd., Cooksville, Ont., Canada Lawrence, Ralph V., 145 Leonard Dr., Concord, Calif. Lawrence, Walter F., Jr.,t 18 Yale St., Apt. C, Nutley, N. J. Lawrence, Willis G., New York State College of Ceramics, Alfred, N< Y. Lawson, Louis, Jr., West Virginia Pulp & Paper Co., Develop ment Dept., Charleston, S. C. Lawson, Robert W., Box 369, Erwin, Tenn. Laxton, Wilbur, 126 Market St., Zanesville, Ohio Layne, Fred A., Louthan Mfg. Co., East Liverpool, Ohio Layton, Donald R. (S), 801 E. Maiden St., Washington. Pa. Lea, Arthur C., United Insulator Co. Ltd., Oakcroft Rd.. Tol- worth, Surrey, England Lead Industries Assn. (Robert L. Ziegfeld), 420 Lexington Ave., New York 17, N. Y. Leander, Karl Johan, Langgat, 19. Hoganas, Sweden Le Bell, Rolf C., Abo Kakelfabrik, Slottsgatan 52, Abo. Fin land '' Leberknight, C. E.,* Kopp Glass, Inc., Box 8255, Pittsburgh 18. Pa. Leddv, Robert M.,t Box 128, Hammonton, N. J. Lee Clay Products Ca^. Inc. (Martin S. Bowne). Clearfield, Ky. ,, ' Lee, Harley C,, Basic Refractories, Inc., 845 Hanna Bldg., Cleveland 15, Ohio Lee, James A., 1328 Candler Bldg., Atlanta 3, Ga. Lee, P. William,! 205 Elmwood Blvd., York, Pa. Lee. Shas Pao, Peiteu Ceramic Plant, Taiwan Industrial & Mining Corp., Peiteu, Formosa Lee, Virgil, J., 638 Arkansas St., Lawrence, Kan. Lees, Arch A., 411 Avon Dr., Pittsburgh 16, Pa. Lefforge, J. W., Monsanto Chemical Co., Anniston, Ala. Lefort, Henry G., Jr.t (J), Box 134, R.R. 1, Upper Marlboro, Md. Le Heron, Harold, Etablissements Porcher, Usines de Revin, Ardennes, France Leibig, Edward C., Corning Glass Works, Corning. N. Y. Leibson, J. S.,t Locke Dept., General Electric Co., Schenectadv 5, N. Y. Leighton, M. M.,* State Geological Survey, 121 Natural Re sources Bldg., Urbana, 111. LeinOld, Martin H., Jr. (S), 428 Seventh St., Fairview, N. J. Leitten. Carl F,, 50 Hawkins Ave.. Hamburg, N. Y. Lelivelt, J. W,, Nash-Kelvinator Corp., 1545 Clyde Park Ave., S.W.. Grand Rapids 9, Mich. Lemmerman. Paul C., Grasselli Chemicals Dept., E. I. du Pont de Nemours & Co., National City Bank Bldg., Cleve land 14, Ohio LeMunyon. James S., 250 Wavne St., Mansfield, Ohio Lenchner, Theodore,* Vitro Mfg. Co., 60 Greenway Dr., Pitts burgh 4, Pa. Lennon, John W., Battelle Memorial Institute, 505 King Ave., Columbus. Ohio Lentz, Clarence J., Quebec Iron & Titanium Corp., Box 40, Sorel, Que., Canada, Leonard, Jean, 96-24 Corona' Ave., Corona, L. I., N. Y. Leopold, Jean H,, Leopold & Cie., Pfaffenhoffen, (Bas-Rin), France Lesar, Albert R,, 509 Woodlawn. Mexico. Mo. Leszl, Matthias. "Smalteria e Metallurgica Veneta," Bassano del Grappa. Italy Lesso, Harold F., 631 Beechmont Dr., Dearborn Hills, Mich. Lester, W. Ronald,* 1620 W. 14th St., Sedalia, Mo. Letort, Marc Yves, Centre National d'Etudes et Recherches Ceramiques, 3 Avenue Paul Doumer, Paris 16, France Leumi, Igo, 1300 Cromwell Ave., New York 52, N. Y. Roster 39 1 evcngood, William C., 4473--289th St., Toledo, Ohio r eVi, Ormonde S., Verd-A-Ray Corp., 615 Front St., Toledo 5, Ohio Levin, Ernest M., National Bureau of Standards, Div. 9.7; I; Washington 25, D. C. Levy, Dorothy, 1212 Lincoln Ave., Highland Park,. 111. Levy'i Raymond H. (S), Box 701, Georgia Institute of Tech nology, Atlanta, Ga. . '. Lewis, Albert D., Kimble Glass Co., Vineland, N. J. Lewis, Charles F., Volunteer Portland Cement Co., Knox ville, Tenn. e-vis Clifford I., Mellon Institute, 4400 Fifth Ave., Pittsburgh 13,"Pa. Lewis, Gordon E.,t Glen-Gery Shale Brick Corp., Box 182, Wyomissing, Pa. rif ^ v Lewis, Howard S., Wahpeton Pottery Co., Wahpeton, N. D. Lewis, J. H., Blue Ridge Glass Corp., Kingsport, Tenn. Lewis, J- M., Abingdon Potteries, Inc., Abingdon, 111. Lewis, Robert T. (S), Box 165, Alfred, N. Y. Lewis, Wager, 754 Matianuck Ave., Windsor, Conn. Lewis, William C., Big Flats, N. Y. Libbey-Owens-Pord Glass Co. (George B. Watkins), 1701 E. Broadway, Toledo, Ohio Liberatore, Laurence C., Taylor Instrument Co., 95 Ames St., Rochester, N. Y. Lidgerwood, William V., Aluminum Import Corp., 630 Fifth Ave., New York 20, N. Y. Lieder, Phillip H., 110 Farview Ave., Norristown, Pa. Liederbach, William H.,t 272 Newman St., Metuchen, N. J. Ligon, Elmer R., W. S. Dickey Clay Mfg. Co., Box 6, Pitts burg, Kan. |Lillie, Howard R.,* 191 Delevan Ave., Corning, N. Y. Limes, Robert W.,t Mellon Institute, Pittsburgh 13, Pa. Lin, C. Y.,t Union Ceramic Industries Co., Ltd., 202-212 Yee Kuh St., Kowloon, Hongkong, China Lindenthal, John (J), Box K, Lakehurst, N. J. Linder, Cyril S., 1139 Park St., Tarentum, Pa. Lindquist,' Claude A., Jr.,t 418 Manitoba St., Playa del Rev, Calif. Lindsay, Carey E., 1025 S. Olive St., Mexico, Mo. Lintz, E. H.,*f 42 Heiskell Ave., Wheeling, W. Va. Linwood, Sidney H., Stackpole Carbon Co., St. Marys, Pa. Linz, Arthur, Climax Molybdenum Co., 500 Fifth Ave., New York 36. N. Y. Lithium Corp. of America, Inc. (Walter M. Fenton), 2560 Rand Tower, Minneapolis 2, Minn. Littleton, Joseph C., 231 Delevan Ave., Corning, N. Y. Littleton, J. T.* (Honorary), Corning Glass Works, Corning, N. Y. Livingston, Charles Q., Armstrong Cork Co., Lancaster, Pa. Livovich, Andrew F., 4941 Baring Ave., E. Chicago, Ind. Lloyd, Katherine M., Kaiser Aluminum & Chemical Corp., 1924 Broadway, Oakland, Calif. Lo, Wing-Cseuk (S), Ceramic Dept., Missouri School of Mines, Rolla, Mo. Lobaugh, Frank E.J 1052 Sherman Ave., Plainfield, N. J. Locke--see General Electric Go. Lochridge. James F., 20611 Watson Rd.. Maple Hts., Ohio Logan Clay Products Co. ("Barton A. Holl), Logan, Ohio Londeree, Joseph W., Jr., 3918 Warner Ave., Louisville, Ky. Long, Bernard, 63 Rue de Rome, Paris 8, France Long, George R., Frigidaire Div., General Motors Corp., Dayton 1, Ohio Long, John V., Solar Aircraft Co., 2200 Pacific Highway, San Diego 12, Calif. Long, Luther L., Owens-Corning Fiberglas Corp., Newark, Ohio Long, Robert, American Porcelain Enamel Co., 1285 Keating Ave., Muskegon 36, Mich. Long, Robert R., National Tile & Mfg. Co., 1200 E. 26th St., Anderson. Ind. Long, Russell E.p Brush Beryllium Co., 4301 Perkins Ave., Cleveland 3, Ohio Longenecker, Robert J. (J), 46 James Rd., Broomall, Pa. Longfritz, Robert K.,t Brighton Brick Co., Box 256, New Brighton. Pa. Longino, Ted E., Frankoma Pottery, Sapulpa, Okla. , Longwell, B. E., Republic Steel Corp., 1423 Republic Bldg., Clevel and 1, Ohio Lorey, Frederick D.,t 89 Meadow Brook Apts., Corning, N. Y. Lorey, G. Edwin (S), Ceramic Dept., Rutgers University, New Brunswick, N. J. Louden, R. H.,t McGean Chemical Co., Midland Bldg., 101 Prospect Ave. N.W., Cleveland 15. Ohio Louthan Mfg. Co. (C. W. Gerster), East Liverpool, Ohio Love, L. G., National Lime and Stone Co., First National Bldg., Findlay, Ohio Loveland, Edward W.. 27 Llanfair Rd., Ardmore. Pa. Lovenbach, J.. Saint-Roch Co., 50 Rue du Luxembourg, Brus sels, Belgium V>u. 32, No. 10 (1953) Lowe, Earl C.,t 267 N,-Walnut St., Logan, Ohio- Lowe, George K.,t Charles Taylor Sons Co.,- Heights-Rocke- , , feller,Bldg;,.RmL 210, Mayfield at Lee, Cleveland: 18, Ohio. Lower, Clarence G., New Bethlehem Tile. Co.,: 311 Lafayette St., New Bethlehem; Pa. :: Lower,.. Lloyd-C., 227 . Washington St., New Bethlehem, Pa. Lozano,-Jaime, Vidriera Monterrey, S. A., Box 497, Monterrey N. L., Mexico* Lucas, Joseph M., 1431- Broad Blvd., Cuyahoga Falls, Ohio Lucido, Peter .J. (S), 1518 Central, Lafayette, Ind. Ludvigsen, C. F., Den Kongelige Porcelainsfabrik & Fajance- fabriken Aluminia A/S, Copenhagen F., 45 Smallegade, Denmark Ludwig, David W.,t 5272 Keeport Dr., Pittsburgh 27, Pa. Ludwig, Urban W., Box 78, Sea Breeze, N. Y. Lueders, Roland, 3241 Bradford Rd., Cleveland Heights 18, Ohio Luks, Daniel W.,t Star Porcelain Co., Trenton, N. J. Lull, Stanley E., 12 Chamberlain Pkwy., Worcester, Mass. Lunak, Thomas E.,t Globe-Union, Inc., 900 E. Keefe Ave., Milwaukee 1, Wis. Lund, H. Howard.(J), 44 S. Elmwood Ave;, Palatine, 111. Lund, L. Howard (J), 145 W. Park Ave., Wheaton, 111. Lund, Melvin S., 426 E. State St., Alliance, Ohio.................. Lund, Val Jensen (S), 761 Emerson Ave;, . Salt Lake Citv, Utah . Lundberg, Kenneth A. (S), 172 Fourth St., N. W., Atlanta, Ga. Lutton, X. W., National Plumbing Pottery, Inc., Dearborn, St., Zanesville; Ohio Lyle, Aaron K,,* 21 Cumberland Rd., W; Hartford 7, Conn. Lynch, Eugene D., Dept, of Ceramic Engr., 204 Ceramics Bldg., Urbana, 111. "Lynch, James F., Battelle Memorials-Institute^505- King Ave., Columbus, Ohio Lynch, John F., 5022 Illinois St., Loves Park, 111. Lynsavage, Walter F.y 305 Arnold Ave., Port Allegany, Pa. Lyon, John B., Hebron Brick Co., Hebron, N. D. Lyon, Kenneth C.,* Research and Development Center, Arm strong Cork Co., Lancaster, Pa. Lyons, Clifford T., 3930 Edenhurst Ave., Los Angeles 39, Calif. Lyons, S. C., Georgia Kaolin Co., Dry Branch, Ga. Lytle, Jack A.t (J), 2719 N. Hackett, Milwaukee 11, Wis. Lytle, W. O., Pittsburgh Plate Glass Co., Research Lab., Creighton, Pa. Lyttle, Frobisher T., 1031 Findley" Ave., Zanesville, Ohio Me McAllister, Christopher,t Box 281, Clarksburg, W. Va. McAlpine, Kenneth B., 1201 Union Ave., Brackenridge, Pa. McAskill, James I., 311 King St. W., Kingston, Ont., Canada McAuley, James W., 2334 Sherwood Rd.,/Toledo, Ohio McBride; P. B., Porcelain Metals Corp. of Louisville, 1400 S, 13th St., Louisville 10, Ky. McBurney, John W.,* 1543 N. Falkland Lane, Silver Spring, Md. McCabe, Richard P., 2608 Lochmoor Dn, Raleigh, N. C. McCammon, James W., Dept, of Mines, Parliament Bldgs., Victoria, B. C., Canada McCandless, Lyon, Frazier-Simplex International Corp., 420 Madison Ave.. New York 17, N. Y. McCann, D: M.,t Akron Porcelain Co., Akron 14, Ohio McCann, Sidney W.,t Pfaudler Co., 1000 West Ave., Roch ester 11, N. Y. McCartt, Kenneth C., 1408 Delaware Ave., New Castle, Pa. McGlave, James W.J Box 67, Toronto, Ohio McClelland, Roland H.,t Globe-Union, Inc., 900 E. Keefe Ave., Milwaukee, Wis. McClintock, J. P., Sunray Stove Co., 155 S. Sandusky St., Delaware. Ohio McClune, Charles V.,t 1527 Monroe Ave. S. W., Birmingham, Ala McClure, Howard C., 1808 Hutchins St., Portsmouth, Ohio McCollom, Perry C.J American Crucible Co., North Haven, Conn. McComas, Clarence B., T. C. Wheaton Co., Millville, N. J. McConnell, Clifford T. ($), Box 2161, Georgia Tech., Atlanta, Ga. " -1 "' McConnell, G. F., Mosaic Tile Co., Zanesville, Ohio McCormick, John M., 2356 Cheltenham Rd., Toledo 6, Ohio McCormick, Stewart W., c/o Corhart Refractories, 1600 W. Lee St., Louisville, Ky. McCoy, William, 1219 24th St., N.E., Canton 4, Ohio McCreery, George L., 393 Highland Ave., Wadsworth, Ohio McCreight, D. O., 15 Willow Terrace Dr., R. R. 2, Box 290, Library, Pa. McCreight, Louis R., R. R. 1, 67 Hillandale Dr., Ballston Lake, N. Y. Roster 41 :3 SU^ jame| ip;:: , nanel, Donald W., McDanel Refractory Porcelain Co., Ipf Heaver Falls, Pa. "VfcfDane 1 Melvin W., R. R. 3, Beaver Falls, Pa. ||f ^Daniel, L. L., Phelps Dodge Corp., Morenci Branch, Morenci, teria! McDermott, James J., Jr., 136 William St., New York 38, N. Y. H'McDonald, E. F., Ingram-Richardson Mfg. Co., Beaver Falls, pa, If' ilrDonald, Howard A., Apt. 3, 610 Malden Ave., Seattle, Wash. m. UcDouSa*> Taine G.,*t A C Spark Plug Div., General Motors Torp-. Flint 2, Mich. ife UtDowcll, J- Spotts,* 4716 Bayard St., Pittsburgh 13, Pa. H McDowell, Samuel j .,*t 52 Elm Ave., Metuchen, N. J. :onsisten> JP:McElroy, R- H.J International Clay Machinery Co., 1145 Bog|,|ander Ave., Dayton, Ohio nciples fjj ade in depend^ Is. It e has be e FERRC S'McEvoy, Robert J.,1 Research Lab., Owens-Corning Fiberglas, Newark, Ohio gjj^parland, James E., Inland Steel Co., 3210 Watling St., East Jr Chicago, Ind. StMcFarren, Lawrence E., General Electric Co., 1811 LeMoyne m-. Ave., Syracuse, N. Y. IpMcGean, Ralph L., Midland Bldg., 101 Prospect Ave., N.W., Cleveland IS, Ohio ILTER ^McGee, Thomas D.J Research Laboratory, A. P. Green Fire f: Brick Co., Mexico, Mo. E McGill, William M., Virginia Geological Survey, Box 1428, University Sta., Charlottesville, Va. McGinnis, James W., Westvaco Chemical Div., Chrysler Bldg. ' East, 161 E. 42nd St., New York 17, N. Y. I McGohan, G. William, Armco Steel Corp., Middletown, Ohio ||McGolpin, William C., Rm. 403, 57 Bloor St., W., Toronto S, TfefOnt., Canada ,McGraw, Delford A., 4101 Garden Park Dr., Toledo 13, Ohio IMcGuffin, James B. (S), E. I. du Pont de Nemours & Co., Inc., Wilmington, Del. pMcHose, L. H., Inc. (M. M. McHose, Jr.), Box 47, Perth p>.: Amboy, N. J. 1; McHose, M. M., Jr., L. H. McHose, Inc., Box 47, Perth I" Amboy, N. J. %;McHugh, M. J., Eureka Flint & Spar Co., 190 W. State St., ! Trenton 8, N. J. |..McIntosh, Harold W., American Window Glass Co., 9 W. Park discharge :op. Gre se of clea > 3" If:'- Way, Pittsburgh 12, Pa. ^McIntyre, G. H.,*t Ferro Corp., 4150 E. 56th St., Cleveland 5, if.. Ohio pMcKaig, W. Wallace, Cumberland Steel Co., Cumberland, If. Md. jMcKamy, Paul E., Prater Industrial Products, 1515 S. 55th psi. Court, Chicago 50, 111. WMcKeand, Irvin J. (S), 417 Fairlawn Dr., Urbana, 111. IfMcKeen, Richard D.,t 2648 Robinson Blvd., Pittsburgh 21, Pa. H McKendrick, Alexander, Glenboig Union Fire Clay Co., Ltd., Glenboig, Lanark, Scotland .McKenna, John F. (J), Box CC, Alfred, N. Y. p McKeown, Thomas H., Box 31, Metuchen, N. J. jft McKibben, Burt H., Niles Rolling Mill Co., Niles, Ohio McKinley, Theodore D., E. I. du Pont de Nemours & Co., Newport, Del. McKinnie, J. R., 3813 Hoke Ave., Culver City, Calif. ||McKinstry, Herbert A. (S), Box 391, State College, Pa. IJMcLachlan, Eugene K., Mellon Court, Westmont, Johnstown, Pa. J McLain Fire Brick Co. (Lawson E. Mason), Wellsville, Ohio. ||(McLane, James P., Diamond Pottery Corp., 50-56 China St., If. Crooksville, Ohio J McLaren, Henry D., Ferro Enamels (Canada) Ltd., Box 454, Oakville, Ont., Canada McLaren, John, Broadview Circle, East Liverpool, Ohio McLaren, Malcolm G. (S), 330 Cooper Lane, University or operating LTERS isf rs. We c& ilenium rec ord lighting volts, 50/6C Heights, New Brunswick, N. J. McLaughlin, John L., 564 S. Craig PI., Lombard, 111. McLaughlin, Joseph K.,t Red Wing Potteries, Inc., Red Wing, Minn. McLaughlin, William H., Alsey Brick & Tile Co., Alsey, 111. : McMahon, John F.,*t Alfred, N. Y. [' McMahon, John F,, Jr. (J), 117 E. Main St., Lansdale, Pa. McMaster, Harold A., Permaglass, Inc., Genoa, Ohio McMullen, John C., 9325 Rivershore Dr., Niagara Falls, N. Y. n 6, N. Jl "cMurdie, Howard F.,* National Bureau of Standards, Wash ington 25, D. C. McMurtry, Carl H. (S), Box F F, Alfred, N. Y. McNamara, E. P.,*t Cambridge Tile Mfg. Co., Box 71, Cin cinnati 15, Ohio McNaughton, Ronald R., Central Technical Library, Con solidated Mining & Smelting Co. of Canada, Ltd., Trail, C., Canada McNeilly, Clyde, Jr. (S), Box C C, Alfred, N. Y. ENT MAGNET: JcPliail, Dan, American Clay Forming Co., Tiffin, Ohio `icQuarrie, Malcolm C., 392 Church St.. North Adams, Mass. Bulletin; Vu 32, No.*10 (1953) McRitchie, Frank H., Etigr. Expt. Sta., Ohio State Uni versity, Columbus 10, Ohio McVay. T. N.,*t School of Chemistry, Metallurgy & Ceramics, University of Alabama, University, Ala. McWalter, H. G., 731 Forrest Ave., Jenkintown, Pa. McWilliams, Robert J., Pfaudler Co., Elyria Div., Taylor St., Elyria, Ohio M MacAlpine, William M., 357 E. Main St., Somerville, N. J. MacDonald, James E., McFeely Brick Co., Latrobe, Pa. MacDonald, R. W.,t 109 Bent Oak Drive, Shavano Park, Box 661, R. R. 11, San Antonio, Texas MacIntyre, Donald J., R. R., Piffard, N. Y. Mackasek, Edward, Porcelain Enamel Institute, Dupont Circle Bldg., 13.46 Connecticut Ave., Washington 6, D. C. Mackenzie, James, United Steel Companies, Ltd., Research & Development Dept., Swinden House, Moorgate, Rother ham, England MacKenzie, James T., Box 2603, Birmingham 2, Ala. MacLeod, John, United Fireclay Products, Ltd., Bathville Of fice, Armadale, West Lothian, Scotland MacZura, Georget (J), 6400 W. Main, Belleville, 111. Madden, Jesse F., Page-Madden Co., Inc., 76-96 Second St., Box 110, Mineola, N. Y. Madden, Robert C., R; R. 1, 1404 Jordan Ave., Provo, Utah Maddock, A. M., R.R., Washington Crossing, N. J. .* Maddock, J. B.,t Paper Makers Importing Co., Inc., 44 S. Second St., Easton, Pa. Madsen, Leif Egil, Box 4208, Sandakervn 109/111, Oslo, Norway Magic Chef, Inc. (Arthur Stockstrom), 1641 S. Kingshighway, St. Louis TO, Mo. Magid, H. S.J American Radiator & Standard Sanitary Corp., Box 907, Trenton 5, N. J. Magnuson, J. W., Western Feldspar Milling Co., Box 671, Salida, Col. Maheshwary, Ved P., Govt. Central Pottery Agency, Sonepat. Punjab, India Mahier, Lois W., 4535 Harding Blvd., Baton Rouge, La. Mahoney, Frank B., Richmond Radiator Co., Uniontown, Pa. Mahurin, Frank R., 638 Clower St., San Antonio, Texas Maior, Nelson S., Ceramica Sao Caetano S. A., Caixa Postal 278, Sao Paulo, Brazil 1 Majeske, Joseph, T. C. Wheaton Co., Millville, N. J. Malcolm, Richard B., 115 Knox St., R.R. 1, Bridgeville, Pa. Malinowski, Theodore P., 59 Princeton St., Springfield 9, Mass. Malkin, W. R., B. F. Drakenfeld & Co., Inc., Box 267, East Liverpool, Ohio Malm, Arthur T.,t 233 Beverly Rd., Worcester 5, Mass. Maloney, William F., 5251 Forbes St., Pittsburgh, 17, Pa. Mandel, Charles J., The Willette Corp. of N. J., Codwise Ave. & Reed St., New Brunswick, N. J. Mandle, Richard M., Rare Earths, Inc., Box 488, Pompton Plains, N. J. Mann, George H., Lake Salubria, Bath, N. Y. Manning, R. Douglas, Harker Pottery Co., East Liverpool, Ohio Manring, Jack C.t (J), R. R. 1, South Charleston. Ohio Manring, William H., Calumite Co., Box 151, Hamilton, Ohio Mansfield Sanitary Pottery, Inc. (Perry E. Draper), Perrys- ville, Ohio Manson, M. E.,* Box 1480, Palm Springs, Calif. Manz, Oscar E.t (J), Box 516, University Sta., Grand Forks, N. D. Maples, Jack Scott, Pine Hail Brick & Pipe Co., Winston- Salem, N. C. Marbaker, Edward E.,* Mellon Institute, Oakland Sta., Pitts burgh 13, Pa. March, Joseph W., Nova Scotia Technical College, Halifax, N. S., Canada Marcowka, Chester A., 4615 W. Morgan Ave., Milwaukee 15, Wis. . Marcus, Leont (J), 519-B Tulip Road, State College, Pa. Margolis, David, 16 Winchester Ave., Yonkers 2, N. Y. Marini, Dolores O. (S), Tamaulipas 155, Mexico 11, D. F., Mexico Mark, Stanley D., Jr, 42 Ward Park, Grand Island, N. Y. Markert, Fred. S., 2134 Aberdeen Rd., Rocky River 16, Ohio Marquis, John E., Pemco Corp., Res. and Dev. Lab., 2552 Green- mount Ave., Baltimore 18, Md. Marsh, Frank L., National Gypsum Co., Clarence Center, N. Y. Marshall, Hugh C. (J), R.R. 2, Carrollton, Ohio Marshall, Paul A., 1201 Cherry St., Brockway, Pa. Marshall, R. W., Caribbean Development Co., Ltd., Champs Fleurs, Trinidad, British West Indies Marshall, Shadburn, U. S. Steel Corp., Res. & Dev .Lab. 234 At wood St., Pittsurgh 13, Pa. Roster 43 Filar1'11' Francis W., 101 Hornby Dr., Painted Post, N. Y. '.Marti11 Frank B., E. J. Lavino & Co., Box 29, Norristown, Pa. SlM'Uaafrtti!nnl George D., 612 Colorado Ave., Baltimore 10, H. C., Carborundum Co., Niagara Falls, N. Y. Md. f Vlartin, James K., 1068 Helen Ave., Lancaster, Pa. 'artin, John R.f Jr., Monongahela Power Co., Wellsburg, \V. Va. 'tfartin, Leonard A., Martin Ceramic Supply Co., 8901 Rainier "Ave., Seattle 8, Wash. p)Martin, Ralph H., 2300 E. S2nd St., Los Angeles 11, Calif. Sfe-Martin, Robert H., Corning Glass Works, Box 1412, Muskogee. m: Okla. P Martin, Wesley G.,* 6054 N. Kent Ave., Milwaukee 11, Wis. **? Marti'1'. Jose, Ceramica Martini, S. A., Mogi Guacu, Est. S. Paulo, Brazil - Martin0. Paul D. (S), R.R. 2, Box 550, Irving, Texas % yartins, Eng. Renato, de Siqueira, c/o Ceramica Sao Caetano, S' Caixa Postal 278, Sao Paulo, Brazil i- Martz, Joseph A., 535 Riverside Ave., Wellsville, Ohio fllarx, Leroy J., Denver Terra Cotta Co., 135 Tejon St., Denver II LUC $<19, Colo. t Maryland Glass Corp. (L. C. Roche), 2147 Wicomico St., Baltimore 30, Md.' SMaskill, William, Coalbournhill Glass Works, Stourbridge, H Worcester, England : Mason City Brick & Tile Co. (C. F. Garland), Mason City, .... Iowa gMason, Lawson E., The McLain Fire Brick Co., Wellsville. 2 Ohio gMassengale, Gordon B., 1010 Vermont Ave., Apt. 3, Pittsburgh ft34, Pa. sMatarazzo, S A I. R. F. (M. Mazzetti), Brazil Export Corp., 50 Broadway, New York 4, N. Y. Matchulat, John G., Buffalo Rd., R.R. 2, East Aurora, N. Y. li.Matejczyk, John F., 7506 Trevanion Ave., Pittsburgh 18, Pa. jMateriali Refrattari Soc. p.Azioni (M. Charles Mathon), Milano 744-Via Elia. Lombardini 13, Milan, Italy Mather, Mrs. Katharine, Waterways Experiment Sta., Drawer te: 2131, Jackson, Miss. |:Mathesius, W. H,, Freyn Dept., Koppers Co.. Inc., 10th FI.. Koppers Bldg.. Pittsburgh 19, Pa. |Mathiasen, O. E., Federal Seaboard Terra Cotta Corp., Perth Amboy, N. J. Mathieu, Louis A., Parra Mantois, 11 Chemin de Ronde, Le- Vesinet (S. & O.), France jfMathon. M. Charles, Materiali Refrattari Soc. p.Azioni, Milano 744-Via Elia, Lombardini 13, Milan, Italy jg Matson, Frederick R.p 244 S. Burrowes St., State College. Pa. llfMatteson. Gilbert D.. Scintilla Magneto Div., Bendix Aviation 6 Corp.. Sidney. N. Y. pi Matthews, L. G., American Smelting & Refining Co., 120 ||- Broadway, New York 5, N. Y. IsMaUison. William F., Jr., R.R. 1, Willow Brook Farm. Asburv. f. Ave., Asbury Park, N. J. % Mau. K. T., Gaspro, Box 2454, Honolulu, Hawaii 7. Maupin, Addison,' 721 Yale Ave., Terrace Park, Ohio J; Maurer, James A., 5519 N. Lake Dr., Milwaukee 11. Wis. 7 Mauser, H. W.. Spoorsingel 68, Delft, Holland Mavor, Wilfrid, Ferro Enamels (Canada) Ltd., Oakville, [. Ont., Canada |5 Maxson, Elwyn L., 1208 Isabel St., Burbank, Calif. Maxson, Elwyn L.. 1208 Isabel St., Burbank, Calif. Maxwell, Laurel H., 3518 Perry Ave., Kensington, Md. t May, L. F.. Standard Ultramarine & Color Co., Huntington v 18. W. Va. Haybaum. Paul S., Jr., 4335 Norma Dr., South Euclid. Ohio Mayer, Walter S., Mayer Ch r Falls, Pa. Mayfield. Manville J.J 110 Hilldale Dr.. Chattanooga 11. Term. Maynard. Fred A.. 545 E. 250th, Euclid, Ohio Maynard, Frederick H., Corning Glass Works, 1 Jackson St., OHli Wellsboro, Pa. Mays, George A., Niles, Calif. Mazet, Louis, Borax Frangais, S.A., 64 Rue des Mathurins, Paris (8") France Mazzetti, M., S/A I. R. F. Matarazzo, Brazil Export Corp., v 50 Broadway, New York 4, N. Y. - Medert, Warren C., General Eng. Dept., Owens-Illinois Glass , Co., Alton. 111. Meeka, Edward, Metropolitan Clay Inc., Box 27, East Palestine, Ohio Megles, John E., Jr. (S'), Kappa Delta Rho, 420 E. Prospect Ave.. State College, Pa. Meharg, Laurence, Hazel-Atlas Glass Co., 15th & Jacob Sts., Wheeling, W. Va. Meid. William J,, 203 Elm St., Glenview, 111. Meinken, Robert H. (S), 351 Prentiss Lane, University Heights, New Brunswick. N. J. Meiresonne, Arthur C., 324 Fallis Rd., Columbus 14, Ohio : BuLLETflg Vol. .32, No. 10 (1953) Mejia, Lorenzo, Colombia Brewers Industries, Inc., ISO Broadway, 13th Floor, New York 7, N. Y. Melick, Nelson Mi, Nelson McCoy Pottery Co., Roseville, Ohio , Meloy, C. L.,t Res. Dept., Rm. A-416, Bethlehem Steel Co., . .Bethlehem, Pa. Meng, Edwin R., Box 6087, Cleveland 1, Ohio Mengshol, Clarence O., American Radiator & Standard Sani tary Corp., 1089 Essex St., Richmond, Calif. Merbler, Wallace, Meadowbrook Apts. 77, Corning, N. Y. Merck, Walter J.,t 25 Addison Dr., Short Hills, N. J. Meredith, Neil F., 7024 Oakwood Rd., Parma Heights, Ohio Meriwether, B. Corbin, Deena Artware, Inc., 632 S. Third St., Paducah, Ky. Merkel, W. H., W. A. Riddell Co., American Clay Machinery Div., Bucyrus, Ohio Merlini, Ing. Francesco, Colonnata (Florence), Italy Merriam, Jack G.,t 727 N. Wildwood, Mundelein, 111. Merritt, Clarence W.,*t Box 464, Alfred, N. Y. Merritt, Lester M.,t 654 Wilson Ave., Columbus 5, Ohio Merry, E. B., Jr.,t Merry Bros. Brick & Tile Co., 415 Masonic Bldg., Augusta, Ga. Merry, W. H., 380 E. End St., Beaver, Pa. Mertens, Robert C. (S), 937 Enid Ave., Azusa, Calif. Merwin, Byron W., Parkway Rd., R.R. 2, East Liverpool, Ohio Merz, George, Magnesita S. A., Caixa Postal 208, Belo Hori zonte, Brazil Messimer, Laverne A.,t Holophane Co.. Newark, Ohio Messner, Paul DuBois, III (S), Box CC, Alfred, N. Y. Metal & Thermit Corp. (George C. Betz), 100 E. 42nd St., New York 17, N. Y. Metz, G. F., Hillside Dr., Farquhar Estates,* York, Pa. Metzger, A. J.;t Dept, of Ceramic Engineering, Virginia Poly technic Institute, Blacksburg, Va. Meuli, William P. (S),, 4509 19th Ave. N. E., Seattle 5, Wash. Mexico Refractories Co. (C. A. Smith), Mexico, Mo. Meyer, G. Robert (J), 1333)4 Utah St., Toledo 5, Ohio Meyer, George W., Gienshaw Glass Co., Inc., Glenshaw, Pa. Meyer, L. S., Hydraulic-Press Brick Co., 705 Olive St., St. Louis 1, Mo. Meyer, William W,, R. R. 1, Box 632, Annandale, Va. Meyerhofer, E. A., Meyerhofer & Co., Postbox, Zurich 32, Switzerland Meyer-Scholer, Hans, Carl Spitterlerstrasse 1, Liestal, Swit zerland Michael. Frank L., 319 Norbourne Blvd., St. Matthews, Louis ville 7, Ky.; Michael, Harold J., jSia Industrial del Norte, Apartado 226, Saltillo, Coah., Mexico Michel, Howard, 1341 S. Boston Ave., Rm. 210, Tulsa 3, Okla. Michel, S., 9 Rue Deves, Neuilly-S-Seine (Seine), France Michelotti, Joseph E. (J), c/o L. Sprauge, R.R. 3, Kuser Rd., Trenton, N. J. Michener, John W., Res. Lab., Owens-Corning Fiberglas Corp., Newark, Ohio Mickwitz, Alexander von, 625 Lehmer St., Latrobe, Pa. Middleswarth, Earl T., 1819 Kimble Ave., Arnold, Pa. Middleton, George J., 432 Fifth St.. Manhattan Beach, Calif. Midgette, Willard B., Demuth Glass Works, Inc., Box 629, Parkersburg, W. Va. Mildwoff, Ben/Bent Glass Works, Inc., 85-25 I26th St.. Rich mond Hill 18, N. Y. Millar, N. S. C., British Titan Products Co., Ltd., ICronos House, Coppergate, York, England Miller, B. L., Royal China, Inc., Sebring, Ohio Miller, Boyd C., Miller Equipment Co., Box 1566, Salisbury, N. C. Miller, Edmund H. (S). 910 Poplar St., Austin, Texas Miller, Elmer R., Washington Porcelain Co., Willow St., Washington, N. J. Miller, Elwin L. (S), R.R. 2, Beaver Dams, N. Y. Miller, Fred M,, The Brynwood, Apt. A-24, Wynnewood, Pa. Miller, Fred W., Franklin Manor, 114 Franklin St., Bldg. 8, Apt. B-2, Morristown, N. J. Miller, Grant E., Ferro Corp., 4150 E. 56th St., Cleveland 5. Ohio Miller, Harold, 5736 N. Talman Ave., Chicago 45, 111. Miller, Harold D., 189 Circle Dr., Plandome Manor, Long Island, N. Y. Miller, Howard L.,t Libbey-Owens-Ford Glass Co., 1701 E. Broadway, Toledo 5, Ohio Miller, John B.,+ Third St., Lewiston, N. Y. Miller, John K. (S), 1421 Navahoe Dr., Pittsburgh 28, Pa. Miller, John W., New Castle Refractories Co., New Castle, Fa. Miller, Jorge Smith, Casilla 187, a/co. Cristalerias de Chile S. A., Santiago de Chile Miller, Marlin, Jr. (S), Box J-3, Alfred, N. Y. Miller, O. E., Pyro Refractories Co., Box 466, Oak Hill, Ohio Roster 45 .ijiler, Ray R., Claycraft Co., Box 866, Columbus 16, Ohio Vliller. Richard C., 4353 Burnham Ave., Toledo 12, Ohio Miller, Robert A.,* Pittsburgh Plate Glass Co., 420 Ft. Duquesne glvd., Pittsburgh 22, Pa. Miller, R- V., Sovereign Potters, Ltd., Hamilton, Ont., Canada Miller, R. W., Columbia-Southern Chemical Corp., 420 Ft. ' Duquesne Blvd., Pittsburgh 22, Pa. Miller, Russel A.,t 251 E. Rockland St., Philadelphia 20, Pa. jdiller, Vincent P., Miller Pottery Eng. Co., 2300 Palmer St., Pittsburgh 18, Pa. Miller, William A., Carborundum Co., Falconer, N. Y. Milligan, Chester E., 4814 Loma Vista Ave., Los Angeles, CalifMilligan, Lowell H., Norton Co., New Bond St., Worcester 6, Mass. Milliken, John H. (S), Tower Club, Stadium Dorms, Ohio State University, Columbus 10, Ohio Milliken, Joseph Edward (S), Tower Club, Stadium Dorms Ohio State University, Columbus 10, Ohio Milliken, William U. (S), Box FF, Alfred, N. Y. Millman, Nathan, J. M. Huber Corp., Huber, Ga. Mills, G. Alexander, Houdry Process Corp., Box 427, Marcus Hook, Pa. Mills, R- Gerald (S), 59 S. Adelaide Ave., Highland Park, N. J. Mills, Robert H., R. R. 3, Wilmington Rd., New Castle, Pa. Milton Brick Co., Ltd. (D. T. Green), 170 Bloor St., W., Toronto, Ont., Canada Miner, Reginald R., 412 W. Chestnut Ave., Metuchen, N. J. Mink. John D., R.R. 2, Dunkirk, Ind. Minnick, L. John, 306 Boyer Rd., Cheltenham, Pa. yMinton, G. Z.,t Pittsburgh Plate Glass Co., Research Lab., Creighton, Pa. Missbach, George E., Morehouse Industries, 707 Henry Grady Bldg., Atlanta, Ga. Mississippi Glass Co. (D. R. Muir), 88 Angelica St., St. Louis ' 7, Mo. Mitchell, Guthrie M., Fairfacts Co., Inc., Box 374, Trenton, N. J. Mitchell, Lane,*t School of Ceramic Engineering, Georgia - Institute of Technology, Atlanta, Ga. Mitchell, M. P., Fairfacts Co., Inc., Box 374, Trenton 3, N. J. Mitchell. Russell G., R. R. 1 Dutch Ridge Rd., Beaver, Pa. -Mitoff. Stephan P. (S), 1839 Delaware St., Berkeley 3, Calif. 'Mitra, H. K.,t 12 A Rd. E,, Jamshedpur B. N. R,, India J,Mixer, William G., Jr., 1848 W. Fifth Ave., Columbus 12, Y. Ohio Mochel, John M., 2819 Charlestown Rd., New Albany, Ind. : Mockrin, Isadore, Pennsylvania Salt Mfg. Co., Res. & Dev. Div., , Box 4388 Chestnut Hill P. O., Philadelphia 18, Pa. ` Modigliani, Piero, Modigliani Glass Fibers, Inc., Box 18, Lan caster, Ohio Modrone, Raimondo Visconti di, Soc. Ceramica Richard Ginori, Milan, via Bigli, 1 Italy Moebus, C. R., United Clay Mines Corp.. East Liverpool, Ohio Moffat, John, Jr., 3275 Colony Circle. Los Angeles 27, Calif. Moffett, Robert A.,t 315 W. Walnut St., Lock Haven, Pa. Mohanty, Gajendra Nath! (S'), Ceramic Engr. Dept., School of Mines & Metallurgy, Rolla. Mo. . Mohl, Helmuth, Fabrica de Loza "La Favorita," S. A., Palma Norte 308, Despacho 312, Mexico, D. F., Mexico Mohler, Neil F. (J), Champion Brick Co., 7600 Pulaski High way, Baltimore 6, Md. Mohr, J. Gilbert,! LOF Fiber Glass Div., Parkersburg. W. Va. Mohr, William C.,f Westinghouse Research Labs., Ardmore Blvd., E. Pittsburgh. Pa. Moler Products, Ltd., Hythe Works, Colchester, Essex, Eng land Molina, Joao Jernandes Gimenes, c/o Ceramica Sanitaria Porcelit, S. A.. Rua Itapura 626, Sao Paulo, Brazil Moller, J. Aall, Porsgrunds Porselaensfabrik, Porsgruna, Norway Monack, A. J., Box 305, Rutherford, N. J. Monagle, William T., Lloyd Ave., Stanhope, N. J. .(Monday, John C., Hevi Duty Electric Co., 4212 W. Highland Blvd., Milwaukee, \\ is. Moneta, Fausto, Via Mambretti, 9, Milano, Italy Mong, Lewis E., 8506 Loughborough Place, Chevy Chase 15, Md. Moninger, Richard E., Park Blvd., East Liverpool, Ohio Monks, J. R., 941 Danforth St., Alton, 111. Montagno, Antonio M.. 69 Glenmont Ave.. Columbus 14, Ohio Montemayor, Ponciano S., Jr., Box 1081, Monterrey, Nueva Leon, Mexico Montgomery, Earle T.,*t Engr. Expt. Sta,, Ohio State UniVt'rsity, Columbus 10, Ohio VI- 82, No. 10 (197)3) Montgomery, Eldwin C.t (J), 1701 E. Broailway, Technical Dept., Toledo 5, Ohio Montgomery, Thomas B., Pittsburgh Plate Glass Co., 632 Duquesne Way, Pittsburgh 22, Pa. Moody, H. Leslie, Hyalyn Porcelain, Inc., Box 460, Hickory, N. C. Moody, Willis E.,t 210 E. Franklin St., Raleigh, N. C. Mooney, Edward L., General Lab. Assoc., Inc., Norwich, N. Y. Mooney, William F.,t 7445 Etiwanda Ave., Reseda, Calif. Moore & Munger (Murray Rushmore), 33 Rector St., New York 6, N. Y. Moore, Carleton B. (S), Alfred, ,N. Y. Moore, Charles H., P. R. Mallory & Co., Indianapolis, Ind. Moore, Dwight G.,*t Mineral Products Div., National Bureau of Standards, Washington 25, D. C. Moore, H., Dept, of Glass Technology, University of Sheffield, Elmfield, Northumberland Rd., Sheffield 10, England Moore, Henry, 38 Potter Ave., W. New Brighton, Staten Is land, N. Y. Moore, John G., 505 E. Poplar St., Robinson, 111. Moore, Richard S.,t Harbison-Walker Refractories Co., Farm ers Bank Bldg., Pittsburgh 22, Pa. Moore, Robert F., Apt. B, Bldg. 68, 68 W. Steuben St., Crafton, Pittsburgh 5, Pa. Moore, W.-G., Humphryes Mfg. Co., 201 E. Fifth St., Mans field, Ohio Moran, J. J., Landis Ave. & Spring Rd., Vineland, N. J. Morell, N. L., 313 Union Bank Bldg., Bethlehem, Pa. Morena, Alfred (J), 2451 Second Ave., New York 35, N. Y. Morgan, John M. (S), 720 Rankin Ave., Schnectady, N. Y. Morgan, Robert A.,t Pass & Seymour, Inc., Syracuse, N. Y. Morgan, Stuart' F.,+ "Marshnere," Mattapoisett Neck Rd., Mattapoisett, Mass. Morgan, Willard L., 117 Hibiscus Drive, Pittsburgh 35, Pa. Morgan, William R.,*t 1343 Brookwood, Birmingham, Mich. Mornin, Bob L.,t 2719 Ridge Ave., East St. Louis, 111. Morren, Georges, 20 rue Debunne, Menin, Belgium Morris, Ernest D., 15 Irby Rd., Heswall, Cheshire, England Morris, Frank, 236 Greenpoint Ave., Brooklyn 22, N. Y. Morris, George J., Research Dept., Ferro Corp., 4150 E. 56th St., Cleveland, Ohio Morris, Irvine H., 4150 E. 56th St., Cleveland, Ohio Morris, John L., 14427 Allingham, Norwalk, Calif. Morris, Kent B. (S), 202 Evans Dr., Decatur, Ga. Morris, Paul R., Pittsburgh Plate Glass Co., Creighton, Pa. Morris, W. C., 1251 Mayfield Ridge, Cleveland 24, Ohio Morrison, Boone H., B. F. Drakenfeld & Co., Inc., Box 519, Washington, Pa. Morrison,' R. F., 384 Gulf Rd., Elyria, Ohio Morrison, Wallace S., 840 Cedar St., Rockford, 111. Morse, George T.,* 7 Longview Rd., Metuchen, N. J. Morton Pottery Co. (S. W. Rapp, Jr.), Morton, 111. Morton, William A., 46 Standish Blvd., Mt. Lebanon, Pitts burgh 16, Pa. Mosaic Tile Co., Zanesville, Ohio Moser, Berthold B., Industria Ceramica. Ltda., Apartado Aereo 4829, Bogota, Colombia Moser, John L.,t 1210 Acorn Dr., Dayton 9, Ohio Moses, Milton (J), Battelle Memorial Institute, 505 King Ave., Columbus, Ohio Moss, LeRoy L.,t Walnut Hills Rd., Cleveland 22, Ohio Motsch, F. R., Foster-Forbes Glass Co., Marion, Ind. Mould, W. J., Steubenville Pottery Co., Steubenville, Ohio Mount Clemens Pottery Co. (Charles E. Doll), Mt. Clemens, Mich. Mouraud, Paul H., 14 Ingleside Rd., Upper Montclair, N. J. Mowrey, Fred W., 108 Rodgers Dr., New Kensington, Pa. Mueller, Edward E.t (S), School of Mineral Engineering, University of Washington, Seattle 5, Wash. Mueller, Ferd A., 1360 Rudd, Canon City, Col. Mueller, James I.,t Ceramic Engineering Div., School of Mineral Engineering, University of Washington, Seattle 5, Wash. Muir, D. R., Mississippi Glass Co., 88 Angelica St., St. Louis 7, Mo. Mullen, Joseph, Champion Brick Co., 7600 Pulaski Highway, Baltimore 6, Md. Mullen, Willard F., R. R. 1, State College, Pa. Muller, Frederick W., 1111 Calumet Ave.. Calumet, Mich. Muller, Dr. Ing. Gerhard, Staatliche, Porzellan-Manufaktur, Berlin, (13a) Selb/Oberfr., Hartmannstrasse 1-3, U. S. Zone, Germany Muller, Max,t Basic Refractories, Maple Grove, Ohio Muller, Robert, Ste. Emaillerie de St. Maurice, 29 Rue du Val d'osne, St. Maurice, France Mullite. Refractories Co. (Edward L. Bohn), Shelton, Conn. Mulroy, James P.,t 965 Lafayette Ave., Buffalo 9, N. Y. Mulryan, Henry, Sierra Talc & Clay Co., Box 390, South Pasadena, Calif. Mulvane, O. E., 4138 N. 21st St., Milwaukee 9, Wis. Roster 47 c Blocks| nsion and.j s and coi t tank bio ta exact, s 1 jty. Dry prtj al super dd souri clay ection in gla in uppersh 3389 deg^J Vacuum-Cc id other Fo quality glo U5:| BclletE vfundy. O- S.,t 426 Park Ave., Wheaton, 111. *} .ritatVoyd, John B., Rockware Glass, Ltd., Rockware Ave., fVecnford, Middlesex, England m , rphy, Harry T., Climax Fire Brick Co., Climax, Pa. rnhy! Remington M., 420 Hixson Ave., Syracuse 6, N. Y. Uni-ray, Ernest L., U. S. Quarry Tile Co., East Sparta, Ohio Wtirrav, Maurice A.,t 10 Post Lane, East Williston, N. Y. jlurray, Robert S., B. F. Drakenfeld & Co. Inc., Washington, \lusselman, H. G., 4413 Old Frederick Rd., Baltimore 29, Md. Vvcalex Corporation of America (Richard A. Humphrey), * Clifton Blvd., Clifton, N. J. \lvers C. H., Utah Fire Clay Co., 1078 S. First W., Salt Lake * jty,' Utah Wilbur C., 2401 Malden Rd., Cleveland 21, Ohio Mvers'on, Martin, 90 Hamilton St., Cambridge, Mass. Jfygdal. Rolf L., 350 Charcliff Dr., San Antonio, Texas IN Vadler, Marion R. (S), 129 E. Seventh St., Ames, Iowa \'agan, Harold (S), Box 1-9, Alfred, N. Y. Nagel, E. W., Wrought Iron Range Co., 5661 Natural Bridge Ave., St Louis 20, Mo. Nakamura, Yoshikazu, Asahi Glass Co., No. 1, 4-chome, Ginza, Cbuo-ku, Tokyo, Japan Napier, John B,, 1297 Burton Ave., Macon, Ga. Nash, Harold S.,* Ceramics Dept., University of Cincinnati, , Cincinnati 21, Ohio Nash, Herbert, Southern California Gas Co., Box 3249, Ter- minal Annex, Los Angeles 54, Calif. 'NATCO Corp. (R. A. Shipley), 327 Fifth Ave., Pittsburgh 22, Pa. National Ceramic Co. (J. A. Schermerhorn), 500 Southard St., Trenton 2, N. J. National Engineering Co. (E. A. Peterson), 549 W. Wash ington Blvd., Chicago 6, 111. National Industrial Sand Assn. (V. P. Ahearn), 1325 E St. N. W., Washington 4, D. C. National Lead Co. (Alex Stewart), 111 Broadway, New York , 6, N. Y. National Lime & 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. Clough), 70 Memorial Dr., Cambridge 42, Mass. Naudot, Jacques, Directeur Cerabati, Pont-Sainte-Maxence (Oise), France Navias, Louis,* Research Lab., General Electric Co., The Knolls, Schenectady, N. Y. Navratiel, Hans, Jahnstr. 3, Lauf/Pegnitz, Bavaria. Germany Neal, James E., 164 Sandford Ave.. North Plainfield, N. J. Nealon. Terence P. (J). Edward Curran Engineering, Ltd.. Cardiff, Wales, Great Britain Neely, Homer E., Jr., 404 E. 11th Ave., Tarentum, Pa. Neff, Edward D., Box 205, Templeton, Pa. Neff, John M., Armour Research Foundation, 35 W. 33rd St., Chicago 16, 111. Neff. Russell C., General Refractories Co., Olive Hill, Ky. Neiman, Robert, Whip-Mix Corp., Inc., 411 W. Avery Ave., Louisville 8, Kv. Nelles, Maurice, Borg-Warner Corp., Central Research Lab., Bellwood, 111. Nelson, Forrest W., 3341 S. Taylor, Milwaukee 7, Wis. Nelson, James A., 204 Ceramics Bldg., University of Illinois, Urbana, 111. Nelson, James W. (S), Riverton, R.R. 2, Salt Lake City, Utah Nelson. Karl E., 1714'/= Vance Ave., Chattanooga 4, Tenn. Nelson McCoy Pottery Co. (Nelson McCoy Melick), Roseville, Ohio Nelson. Robert E. (S), 17 Seneca Manor Dr., Seneca Falls, _N. Y. Nelson. Robert E. (J), Ridge & Germantown Pikes, College- vilie. Pa. Nelson, Robert T., Columbia-Geneva Steel Div., Box 269, Salt Lake City 10, Utah Nelson. William I. (S), 118 Mary St., Binghamton, N. Y. Nerenstone. Marc A. (J), 311 W. 75th St., New York 23, N. Y. Netter, William S., 18081 Mendota Ave.. Detroit 21, Mich. Neuhaus, Jacques, 18 Rue Charles Laffitte, Neuilly Sur, Seine, France Neumann, Paul D., 2 Knox St., Campbell, N. Y. New, Ryland J.. National Sewer Pipe, Ltd.. Swansea, Toronto 3, Out., Canada Newark, Frank F., Aluminum Co. of America, 1450 Terminal Tower, Cleveland 13, Ohio Newark, Martin. Simonds Abrasive Co., Tacony & Fraley Sts., Philadelphia 37, Pa. Vol. .32, No. 10 (1953) Newbold General Refractories, Ltd., Gavey St., Mayfield, N. S.. W., Australia New Castle Refractories Co. (R. W. Rowland), New Castle, Pa. Newcomb, Rexford, Jr.,t 915 Dodge, Lake Geneva, Wis. New Jersey Porcelain Co. (J. M. Gilfillan), Box 908, Trenton 5, N. J. Newkirk, Terry F., Portland Cement Assn. Fellowship, Na tional Bureau of Standards, Washington 25, D. C. Newman, Robert W., R.R. 5, Putnam Rd., Schenectady 6, N. Y. Newton, Avery C., The Refractories Institute, First National Bank Bldg., Pittsburgh, Pa. Nicholson, Albert H., The Federal Glass Co., 515 Innis Ave., Columbus 7, Ohio Nicholson, Clifford M.,1 American Nepheiine Ltd., Lakefield, Ont., Canada Nicolin, Jean, Etabl. Jaby Freres, 6 Rue de Marignan, Paris 8, France Nieman, A. H., Ohio Hydrate & Supply Co., Woodville, Ohio Niemczura,_ Stanley W. (S), 300 S. Washington St., Rear. Evans City, Pa. Niklewski, B. K., Main Enamel Mfg. Co., Ltd., Gothic Works, Angel Rd., Edmonton, London N. 18, England Niles Fire Brick Co. (J. R. T. Clingan), 165 E. Park Ave., Niles, Ohio The Nippon Toki Kaisha, Ltd. (Jun Isagawa), #1, Noritake- shinmachi, Nishiku, Nagoya, Japan Nisula, Chester A., 716 Main St., Riverton, N. J. Niyogi, D. P., Sur Enamel & Stamping Works, Ltd., 24 Middle Rd., Entally, Calcutta, India Nobes, Frederick L., Carborundum Co., Ltd., Manchester, England Nobles, Melvin A., c/o C. H., Carr, 765E. N. 13th St., Abilene, Texas Noblitt, H. L., Ortona Gold Mines, Ltd., 143 First Ave., Ottawa, Ont., Canada Noble, Richard C.t (J), The Claycraft Co., Box 866, Columbus 16, Ohio Nolan, William F. (S)', Deposit, N. Y. Norante, Nicholas J. (S), 169 W. Main St., Rahway, N. J. Nordberg, Martin E., 134 E. Fourth St., Corning, N. Y. Nordgren, Harry, Aktiebolaget Gustavsberg Fabriker, Gustavs- berg, Stockholm, Sweden Nordmeyer, Rudy L., Mission, Texas Nordyke, J. S., Hammond Lead Products, Inc., 1602 Oliver Bldg., Pittsburgh 22, Pa. Noritake, Henry M;, 2122 Alvin, Toledo 7, Ohio Normandeau, Pierre, 3660 Hutchison St., Montreal 18, Que., Canada North American Philips Co., Inc. (C. J. Woods), Research & Control Institutes Div., 750 S. Fulton Ave., Mt. Vernon, N. Y. North American Refractories Co. (E. M. Weinfurtner), Na tional City Bank Bldg., Cleveland 14, Ohio North Carolina Feldspar Corp. (W. F. Deneen), Erwin, Tenn. Northwestern Glass Co. (Edward S. Campbell), 5801 E. Marginal Way, Seattle 4, Wash. Northwestern Terra Cotta Co. (Burnette Purcell), 1750 Wrightwood Ave., Chicago 14, 111. Norton Co'. (O. J. Whittemore, Jr.), Worcester 6, Mass. Norton, Charles L., Jr.,* 161 E. 42nd St., New York 17, N. Y. Norton, Frederick H.,*t Dept, of Metallurgy, Div. of Ceramics, Massachusetts Institute of Technology, Cambridge 39, Mass. Norton. James M., Great Valley, N. Y. Norwalk, Marshall H. (S), 84 College Ave., New Brunswick, N. J. Norwood, George M., Norwood Brick Co., Box 5416, Raleigh, N. C. Norwood, J. Nelson (Life), Alfred University, Alfred, N. Y. Novak, John P. (J), 828 S. Scoville Ave.. Oak Park, 111. Novy, Anton R., 8140 Merrill Ave., Niles, 111. Novy, Otto R.. 1525 Robin Hood Lane, LaGrange Park, 111. Nowell, Dorroh L., Jr., 202 Broad St., Augusta, Ga. Nyquist, Roy A., 3650 Beechway Blvd., Toledo 14. Ohio O Oakley, W. W.,* Box 35, Corning, N. Y. O'Bannon, L. S., 2239 Farleigh Road, Columbus 21, Ohio Oberst, Clair R.. Industrial Ceramic Products, Inc., 965 W. Fifth Ave., Columbus 8, Ohio O'Connell, Thomas B,, Libbey-Owens-Ford Glass Co., 1701 E. Broadway, Toledo, Ohio O'Connor, James H., 130 Murdock Rd., Baltimore 12, Md. O'Connor, Jerry B., 333 W. State St., Trenton 8, N. J. Odom, Paul R. (J), 3882 St. Charles PI., Macon, Ga. Oesch, Robert B., 317 Noel, Lees Summit, Mo. Roster 49 l.' rt.cterlc, Henry, Roesch Enamel & Mfg. Co., W. Main & N. ' 5?4th Sts., Belleville, ill. jr n.sterle, Robert A., 2427 W. Main, Belleville, 111. i Affill P. M., Amsler .Morton Corp., Chamber of Commerce if';, gidg., Pittsburgh 19, Pa. L jen, Ellsworth P.,* Harrop Ceramic Service, 35 E. Gay St. Columbus, Ohio nvden John T.,* Glass Industry, 55 W. 42nd St., New York 36 N. Y. Ogden, William D., Jr. (S), 28 E. 14th Ave., Columbus. Ohio Ohio Brass Co. (J. J. Taylor), Barberton, Ohio Ohio Clay Co. (Norman E. Denison), Box 1776, Cleveland 5, Ohio "Hydrate & Supply Co. (A. H. Nieman), Woodville, Ohio niiligcr, Lewis P, 209 Ridgeview Dr., East Rochester, N. Y. Olinysty, Basil (S). 6222 S. Kenneth Ave., Chicago 29, I'll. Ohrstedt, L. E., 66 E. Tulane Rd., Columbus 2, Ohio Old Hickory Clay Co. (L. F. Powell), Box 271, Paducah, Ky. O'Leary, W J., 300 E. 25th St., Wilmington, Del. Olive, Frank C-, 509 Chamber of Commerce Bldg., Indian apolis 4, Ind. Oliver, John C., Porcelain Enamel Institute, Dupont Circle Bldg., 1346 Connecticut Ave. N.W., Washington 6, D. C. Oliver, W. V., French Saxon China Co., Sebring, Ohio Olsen, Eric, R.R. 63, Dundee, 111. Olsen, John M., 38 Rector St., Metuchen, N. J. Olsen, Rangwald S.J 1137 Grant St., Evanston, 111. Olson, E. E., A. H. Heisey & Co., Newark, Ohio Olson, Hjalmar, Aktiebolaget Gustavsbergs Fabriker, Gus- tavsberg, Sweden ,'i'Olson, Ole A., Laclede-Christy Co., 4705 Ridgewood Ave., St. Louis, Mo. Olympia, Frederick D. (S), 10 Sims Ave., Corning, N. Y. Onondaga Pottery Co. (R. H. Pass), 1856-58 W. Fayette St., Syracuse 4, N. Y. Opper, Fred H., Savannah Kaolin Co., 314 American Bldg., Box 184, Savannah, Ga. Oravec, Joseph A., 3731 N. Newland Ave., Chicago 34, III. Orefraction, Inc. (John F. Hunt), 7425 Thomas St., Pittsburgh 8, Pa. Orme. William C., Cambridge Glass Co., Cambridge, Ohio Ormsby, Walter C. (S), 311 E. Beaver Ave., State College, Pa: Ornella, LeRoy F. (J), 3206 Upton Ave., Toledo 6, Ohio 1 Orr, David B. (S), Gen. Del., Alfred, N. Y. Orr, Stanley C., Pfaudler Co., Elyria, Ohio Orth, Howard S., Industrial Ceramic Products, Inc., 965 W. Fifth Ave., Columbus 8, Ohio Ortman, Fred B.,*t Gladding, McBean & Co., 2901 Los Feliz Blvd., Los Angeles 39, Calif. Ortman, Robert C., 4419 Union St., La Canada, Calif. Orton, Edward, Jr., Ceramic Foundation (J. L. Carruthers), 1445 Summit St., Box 146, Sta. A, Columbus 1, Ohio Orton, Mrs. Edward, Jr.. 39 W. Torrence Rd., Columbus, Ohio Orzano, Michael J.,t The Claycraft Co., Box 866, Columbus 16, Ohio Osawa, H. K., 3512 E. Fifth St.. Los Angeles, Calif. Osborn, Elburt F., School of Mineral Industries, Pennsyl vania State College, State College, Pa. Osborn, Walton O., North American Refractories Co., Water St., Lock Haven, Pa. Osborne, David G. (S), YMCA, 1736 G St. N. W,, Washing ton, D. C. Osmalov, Jerome S. (J). 10501 Brunswick Ave., Silver Spring, Md. Osterholtz, Carl, A. P. Green Fire Brick Co., Mexico, Mo. Ostrander, Eugene C., Kopp Glass, Inc., Box 8255. Swissvale,. Pittsburgh 18, Pa. Otley. J. D,, John B. Kelly Inc. of Penn., 1720 Cherry St., Philadelphia 3, Pa. Ottawa Silica Co. (George A. Thornton). Box 437, Ottawa, 111. Otto, George H., 53 W. Jackson Blvd.. Chicago 4, III. Otto, William H., Owens-Corning Fiberglas Corn., Newark, Ohio Ottoson, Axel,! 4300 Highland Ave.. Shadvside, Ohio Outcault. Harry E., 37 Woodland Rd., Short Hills, . N. J. Owen, Betty T., American Ceramic Society, 2525 N. High St., Columbus 2. Ohio Owen. Frederick E.. Electrical Refractories Co., East Pales tine, Ohio Owen, J, D., R. Fowler. Ltd., Fitzroy St., Marrickville, Syd ney, N. S. W., Australia Owens-Corning Fiberglas Corp. (August C. Siefert), Newark, Ohio Owens-Illinois Glass Co. (W. Funke), 3600 Alameda Ave., Oakland 1, Calif. Owens-Illinois Glass Co. (E. W. Summers), General Eng. Dept., Alton, 111. Owens, James S., 271 McMillan Rd.. Grosse Pointe Farms 36, Midi. Voi.. .32, No. 10 (1953) Owens)'. Roberts K.tl!,"(Ji)7r North' American'Refractories: Coj National. City Bank, E. 6th Bldg., Cleveland 14, Ohio P Pabst, John G., 552 N. Main St., Butler, Pa. Pacific Clay Products (John D. Fredericks), Box 145, Sta. A., Los Angeles 31, Calif. Pacific Coast Borax Co. (M. H. Pickard), Div. of Borax Con solidated, Ltd., 100 Park Ave., New York 17, N. Y. Packman, Willard D.,t Florida Ceramic Tile Co., Box 451, Lake land, Fla. Paden City Pottery Co, (Merrill C. Sondles), Paden City, W. Va. Pac field, Ralph C., Apt. 10F, Parkhurst Apts., Bethlehem, Pa. Padilla, Federico, Apartado Postal 26783, Mexico, D. F. Paff, John A., 232 N. Sixth St., Reading, Pa. Pafford, Ray W.,* Acme Brick Co., Box 425, Fort Worth 1, Texas Page-Madden Co., Inc. (Jesse F. Madden), 76-96 Second St., Box 110, Mineola, N. Y. Paladino, Albert E., Jr. (S), Box BB, Alfred, N. Y. Palamara, Louis M., 229 W. Main St., Logan, Ohio Palmer, Delos M., 4401 Jackman Rd., Toledo 12, Ohio Palmer, Joseph D., 2432 Ontario Ave., Niagara Falls, N. Y. Palmer, Rufus N., 476 Broadmoor Ave., Pittsburgh 34, Pa. Palmer, Willard E.,+ 6701 Newburgh Rd., Evansville 14, Ind. Palmeri, Victor R., Casilla Correo 38, Sue. Velez, Sarsfield 7, Buenos Aires, Argentina Palmour, Hayne, III,t Box 405, Signal Mountain, Tenn. Paltzer, Clifford (J), 1100 Peace St., Pella, Iowa Paper Makers Importing Co., Inc. (Charles Brian), 44 S. Second St., Easton, Pa. Pappis, James (S), 433 Brookline Ave., Boston 15, Mass. Parcel, Martin W.,f Robertson Mfg. Co., Trenton 5, N. J. Parikh, Niranjan M. (S), Div. of Ceramics, Dept, of Metal lurgy, Massachusetts Institute of Technology, Cambridge 39, Mass. Paris, Charles E., Mead Board Sales, Inc., Lower Basin, Lynch burg, Va. Parker, Glidden M., Jr., Glidden Pottery, Inc., Alfred, N. Y. Parker, Harry,! 8706 Old Bladensburg Rd., Silver Spring, Md. Parker, James W., Jr. (J), R.R. 3, Shakespeare Rd., Columbia, S. C. Parker, Leon, The H. I. Thompson Co., 1733 Cordova St., Los Angeles 7, Calif. Parker, Raymond W., c/o Alliance Clay Products Co., Box 746, Alliance, Ohio Parnham, H., General Refractories, Ltd., Worksop, England Parson, James A., 5760 E. New York St., Indianapolis, Ind. Parsons, Douglas E., Building Technology Div., National Bureau of Standards, Washington 25, D. C. Parsons, Joseph R., Chicago Fire Brick Co., 7531 S. Ashland Ave.. Chicago 20, I'll. Pask, Joseph A.,t Div. of Mineral Technology, University of California, Berkeley 4, Calif. Paspy, Stanley F., Jr., Ferro Corp., 4150 E. 56th St., Cleve land 5, Ohio Pass & Seymour, Inc. (R. H. Pass), Solvay Station, Syracuse 9, N. Y. Pass, James S., R. R. 2, Cazenovia, N. Y. Pass, R. H., Onondaga Pottery Co., 1856-58 W. Fayette St., Syracuse 4, N. Y. Paterson, G. W., 8291 Royden Rd., Mount Royal, P. Q., Canada Patriarca, Armando S. E., Piedras 383, Buenos Aires, Argen tina Patrick, Howard (S), Box J 3, Alfred, N. Y. Patrick, Robert F., Pemco Corp., 2554 Greenmount Ave., Baltimore 18, Md. Patterson, Harvey E., T. L. Smith Co., 2835 N. 32nd. St., Mil waukee 10, Wis. Patterson, Richard C. (J), U. S. Quarry Tile Co., Parkersburg, W. Va. Paulson, Fred H., 28 Greendale Ave., Worcester 6, Mass. Pavlish, Arnold E.,* 2904 Clarkson Rd., Cleveland Heights 18, Ohio Pawlowski, Edward J., 11 Morris St., Amsterdam, N. Y. Pearce, Charles S.,* American Ceramic Society, 2525 N. High St., Columbus 2, Ohio Pearch, Howard C.! (S), 1309 Woodington Rd., Baltimore, Md. Pearch, William M., Akron Porcelain Co., Akron 14, Ohio Pearson, E. J. & J., Ltd. (Charles A. G. Thomas), Firebrick Works, Stourbridge, England Pearson, Edward P., Basic Refractories, Inc., Maple Grove, Ohio Pechman, Alexander, Development Lab., Ryan Aeronautical Co., San Diego 12, Calif. Peck, J. Clair,t 198 Hollister St., Manchester, Conn. Peckham, George W., Coca-Cola Co., 310 North Ave., N. W., Atlanta 1, Ga. Roster 51 pgtlrick, W. W., Armstrong Cork Co., Millville, N. J. pedu, Richard K. (J), Products Div., Cincinnati Milling.Ma chine Co., Cincinnati, Ohio Peel, G. N., Associated Lead Manufacturers, Ltd., Crescent House, Newcastle upon Tyne, 1, England Peiler, Karl E.,* Hartford-Empire Co., Div. of Emhart Mfg. Co., Box 1620, Hartford 2, Conn. Pelham, Alphonzo, IS North Dr., Kensington, Great Neck, L. I-, N. Y. Pelley, Kenneth M., East Sparta, Ohio Pelz, Robert W., 2706 Grovewood, Parma 9, Ohio Pemco Corp. (Richard H. Turk), 5601 Eastern Ave., Baltimore, 24, Md. Penberthy, Larry, Penberthy Instrument Co., 666 Adams St., Seattle, Wash. Pence, Forrest K.,*t Ceramic Engineering & Research, Uni versity of Texas, Austin 12, Texas Pennsylvania Pulverizing Co. (William J. Woods), Box 587, Lewistown, Pa. , Pennsylvania Salt Mfg. Co. (A. H. Clem), 1000 Widener Bldg., Philadelphia 7, Pa. Pennsylvania Wire Glass Co. (E. H. Baldwin), Dunbar, Pa. Pereira, Armando de Arruda,* Caixa Postal 1930, Sao Paulo, Brazil Pereny, Andrew, Pereny Equipment^ Co., 893 Chambers Rd., Box 153, Station A, Columbus, Ohio Perkins, Harrell L., Central of Georgia R. R., 501 Rhodes- Haverty Bldg., Atlanta 3, Ga. Perkins, Walter W.,t 600 De Witt St., Linden, N. J. Perricone, Charles (J), 4329V2 Leeland, Houston, Texas Perry, Robert F., Victor Insulators, Inc., Victor, N. Y. Perry, Robert W. (S), Box J-3, Alfred, N. Y. Perry, T. Ray (S), Rotan, Texas Pertuch, Walter A. R., Franklin Institute Library, Parkway at 20th St., Philadelphia 3, Pa. Peskin, W. L., Edwin M. Knowles China Co., Newell, W. Va. Peters, Forrest I., 2 Meadow Brook Apts., Corning, N. Y. Petersen, Fred A.,*t Hunter-Thomas Assoc., Keith Bldg., Cleveland 15, Ohio Peterson, Albert F. (S), Box 246, Alfred, N. Y. Peterson, E. A., National Engineering Co., 549 W. Washing ton Blvd., Chicago 6, 111. Peterson, Jack D., 3029 123rd St., Toledo 11, Ohio Peterson, W. H., Jr., Valentine Fire Brick Co., Woodbridge, N. J. ; Petrie, Earl C.,*t North American Refractories Co., 1012 National City, E. Sixth Bldg., Cleveland 14, Ohio Petrie, Lloyd R., 404 W. Snyder St., Abingdon, 111. Pett, Tyler G., 261 Antlers Dr., Rochester 18, N. Y. George F. Pettinos, Inc. (George F. Pettinos, Sr.), 1206 Locust St., Philadelphia 7, Pa. Pettinos, George F., Sr., George F. Pettinos, Inc., 1206 Locust St., Philadelphia 7, Pa. Petty, Frank, 2771 W. 230th St., Fairview Park 26, Ohio Petty, Howard E., 3131 Ryons, Lincoln 2, Neb. Pfaudler Co., (Sidney W. McCann), 1000- West Ave., Roch ester 11, N. Y. Pfeiff, C. H., Box 527, Metuchen, N. J. Pfeiffer, Wilbur H.,*t Engineering Lab., Plant 2, Frigidaire Div., General Motors Corp., Dayton 1, Ohio Pfleger, George E,, Harshaw Chemical Co., 2237 S. Garfield, Los Angeles 22, Calif. Phadke, V. S., Central Potteries, Ltd., Itwari, Nagpur 2, India Phelps Dodge Corp., Morenci Branch (L. L. McDaniel), Morenci, Ariz. Phelps, Girard W., 410 E. Magnolia Dr., Morrisville, Pa. Phelps, Stuart M.,* Mellon Institute, Pittsburgh 13, Pa. Phillips, Adrian W., Jr., 316 Fairmont Ave., New Castle, Pa. Phillips, Charles J., Indiana Glass Co., Dunkirk, Ind. Phillips, Donald G,, 2804 Lynne Ave., Hatboro. M. R., Pa. Phillips, Edwin L.,t Carolina Pyrophyilite Co., Box 2414, Greensboro, N. C. Phillips, Gordon D., Olean Tile Co.. Olean. N. Y. Phillips, Jack E., Box 44, Lakewood Ave., East Quogue, L. I., N. Y. Phillips, James G.,t Dept, of Mines & Technical Surveys, Mines Branch, Industrial Minerals Div., Lydia St., Ottawa, Canada Phillips, Leigh F. (J), Box 87, East Quogue, L. I., N. Y. Phillips, Richard A. (S), Box FF, Alfred, N. Y. Phillips, W. Eric, 50 St. Clair Ave. W,, Toronto, Ont., Canada Phoenix, Richard Carlt (S), 93Vs Elm St., South Dartmouth, Mass. Pickard. M. H., Pacific Coast Borax Co., Div. of Borax Con solidated, Ltd., 100 Park Ave., New York 17, N. Y. Pickett, A. R., Aluminum Co. of America, 1501 Alcoa Bldg., Pittsburgh 19, Pa. Pieper, Arthur O., 105 Trevor Court Rd., Rochester 10, N. Y. Pierce Glass Co. (J. G. Bozzo), Port Allegany, Pa. Vol. 32, No. 10 (1953) Pierce, J. Allen, 798 Chalmers Place, Pittsburgh 16, Pa. Pierpont, Harlan T., Jr., New Bond St., Worcester 6, Mass. Pierson, James F.,t 1707 Weston Ave., Towson 4, Md. Pike, Robert D., Brook Lane, Greenwich, Conn. Pilkington, Lawrence H. A., Messrs. Pilkington Brothers, Ltd., Glass Works, St. Helens, England Pimstein, Uri (S), Rm. 4-051, Massachusetts Institute of Tech nology, Cambridge, Mass. Pincus, Alexis G., 1061 Glenwood Blvd., Schenectady 8, N. Y. Pinney, J. M., Harker Pottery Co., East Liverpool, Ohio Pinnow, Harley R., Box 269, East Liverpool, Ohio Pinotti, Fred D., 2324 Middlesex Dr., Toledo, Ohio Pisula, J. Donald, Corning Glass Works, Corning, N. Y. Pittenger, John T., Box 207, Newell, W. Va. Pittman, Jack (S), 3932 E. Mercer Way, Mercer Island, Wash. Pittman, William C., 1119 Omena Place, Cincinnati 38, Ohio Pitts, Joseph W., Enameled Metals Section, National Bureau of Standards, Washington 25, D. C. Pittsburgh Corning Corp. (Walter D. Ford), Technical Dept., Port Allegany, Pa. Pittsburgh Plate Glass Co. (S. F. Cox), Creighton, Pa. Pixley, David M. (J), 243V2 College Ave., Elmira Heights, N. Y. Pixley, Francis V. (J), Paris Rd., New Hartford, N. Y. Place, Tom M.,t 6250 S. Fairfax Ave., Los Angeles 56, Calif. Place, Thomas M., Jr., 20611 Ridgewood Ave., Warrensville Heights, Cleveland, Ohio Plagge, Vernon L., 489 Park Ave., East Orange, N. J. Planje, Christian W.,t 1500 First Ave. S., Seattle 4, Wash. Planje, Theodore J. M., 4 Summit Ave., Rolla, Mo. _ Plankenhorn, William J.,t 204 Ceramics Bldg., University of Illinois, Urbana, 111. Pleasants, Luther E., Jr., 6002 Brookfield Rd., Richmond, Va. Ploetz, Edwin C. H., 708 S. Lincoln Ave., Kankakee, 111. Ploetz, George L.,t 261 Swaggertown Rd., Scotia 2, N. Y. Plumbo, Victor A., General Glass Equipment Co., 5 S. Vir ginia Ave., Atlantic City, N. J. Plummer, Harry C.,* Structural Clay Products Institute, 1520 18th St. N. W., Washington 6. D. C. Plummer, J. H., Glass Fibers Inc., 1810 Madison Ave., Toledo, Ohio Plummer, Norman, State Geological Survey of Kansas, Law rence, Kan. Plunkett, Jerry D. (S), Box 217, Dixon, Mo. Plunkett, Richard G., 191 Fairfax Rd., Rochester 9, N. Y. Plusch. John. A., 63 Spruce St.. Westfield. Mass. Poffenberg, Scott, 11616 Chenault St., Los Angeles 49, Calif. Poisson, Louis, Faiencerie de Badonviller, Bgdonvil'ler, Meurthe et; Moselle, France Poland, Milton E.t (S), 56V2 W. Tenth Ave., Columbus, Ohio Polar, Alfredo, Pachacutec 2269, Urbanizacion Lobaton, Lima. Peru Pole, Gordon R.,*t 2592 S. Shore Blvd., White Bear Lake 10, Minn. Poles, Alfred P., 325 Arborlea Ave., Morrisville, Pa. Polhemus, D. W., Carborundum Co., Bristol, Pa. Polk, Arthur E., 3901 S. Morgan St., Chicago 9, 111. Polscn, John B. (S), Box 201, Clemson, S. C. Pomeroy, William T., Sterling China Co., East Liverpool, Ohio Pond, Marvin H., 224 Thornton St., Hamden 14, Conn. Poole, James P., Brockway Glass Co., Inc., Plant 2, Brock way, Pa. Porcelain Metals Corp. of Louisville (P. B. McBride), 1400 S. 13th St., Louisville 10, Ky. Porst, Edward G., 1418 Stonewood Rd., Baltimore 12, Md. Porter, Frank R.,*t 318 E. Clark St., Crown Point, Ind. Porter, J. L., Kaiser Aluminum & Chemical Corp., Box 1031, Baton Rouge, La. Porter, Rudyard, United States Steel Corp., 208 S. LaSalle St., Rm. 1655, Chicago 90, 111. Porter, Sidney C. Box 34, East Liverpool, Ohio Porter, Wallace S., 709 Eventide Dr., San Antonio, Texas Posey Iron Works; Inc. (Frank A. Fix), Lancaster, Pa. Posluszny, Raymond F., 242 E. Meehan Ave., Philadelphia 19, Pa. Post, Benjamin F.,t Cortland Grinding Wheels Corp., Chester, Mass. Poste, Emerson P.,*t 309 McCallie Ave., Chattanooga 3, Tenn. Postlewaite, Donald E.,t Universal-Rundle Corp., Box 300, Redlands, Calif. Potters Supply Co. (William W. Irwin), East Liverpool, Ohio Potts, Amos P.,* 359 E. Main St., Logan, Ohio Pouilly, Marcel L.. 14902 Center Ave.. Harvey, 111. Poulos, Nick E. (S), 1687 Blvd., N. E,, Apt. F-7, Atlanta, Ga. Poulton, Robert F., 2763 N. Congress Rd., Camden 4. N. J. Poundstone, William W., Pittsburgh Plate Glass Co., Grant Bldg., Pittsburgh, Pa. Roster 53 povvell, John A., 16 Fourth St, Frenchtown, N. J. PoWell, L. F., Old Hickory Clay Co., Paducah, Ky. oniveil, O. E., Indiana Drain Tile Co., Inc., Brooklyn, Ind, Powell, Richard H. (J), 1279 N. Main St., Jamestown, N. Y. Power, Henry R., 1020 James Ave., Niagara Falls, N. Y. powers, Don W. (S), 2701 Nueces St., Austin, Texas powers, George H., 80 Clairmont Ave., Westwood, N. J. prachankhadee, Manoon (S), Dept, of Science, Ministry of Industry, Bangkok, Thailand Pratt, Donald S., Product Engr. Dept., Kawneer Co., Niles, Mich. precision Grinding Wheel Co., Inc. (Roland J. Clark), 8301 Torresdale Ave., Philadelphia 36, Pa. Preisman, Louis, Barium Reduction Corp., South Charleston, VV. Va. Prescott, Frank R., 1811 Kimball Ave., Arnold, Pa. Prescott, Mary Jane (J), 2126 Sherwood Ave., Louisville, Ky. Preston, Frank W., Preston Labs., Butler, Pa. Prewitt, J. K., Elgin Standard Brick Mfg. Co., Elgin, Texas Prey, Arthur H., Carborundum Co., Niagara Falls, N. Y. Price, Glen M., General Refractories Co., Box 1673, Baltimore 3, Md. Price, James E., 44 W. Guernsey Ave., Abington, Pa. Price, Warren L., 70 E. Fourth St., Corning, N. Y. Priddy, K. O., Barium Reduction Corp., South Charleston 3, W. Va. Priestley, J. Edward, Huntly Brick & Fireclay Co., Ltd., Box 14, Huntly, New Zealand \ Primm, Herbert E., 1658 Elevado';.Ave., Arcadia, Calif. Prince, Alan T., Mines Branch, Ottawa, Ont., Canada Prindle, William R. (S), 354 Westgate West, Cambridge 39, Mass. ':i-. Prior, Gordon M., 229 Haven Ave., Scotch Plains, N. J. Prior, Harold D.,t R. R. 1. Valley Rd.; Millington, N. J. Proctor, W. J., Jr., Southern Clays Inc., Gordon, Ga. Prokopec, Robert, 309 N. Tillotson Ave., Muncie, Ind. Promat Division, Poor & Co. (A. E. Chester), 851 S. Market St., Waukegan, 111. Pryor, Edward K., 902 N. Acacia, Whittier, Calif. Puckett, John P., Jr., Leeds & Northrup Co., 4901 Stenton Ave., Philadelphia 44, Pa. Puerto Rico Clay Products Co. (F. Torres Campos), Box 4729, San Juan, Puerto Rico Pulaski, Marie E., 1222 E. 79th St., Cleveland 3, Ohio Puls, Josef, "Austria" United Enamel Works, Vienna XVI, Wilhelminenstr. 8o, Austria . Pumphrey, William I., Murex Welding Processes jJtd., Hert ford Rd., Waltham Cross, Herts, England ' Puntney, L. E., 8021 Titus Rd., St. Louis 14, Mo. j Pupulidy, Alexander, 34--18 91st St., Apt. A 41, Jackson Heights, 72, L. I., N. Y. Purcell,' Burnette, Northwestern Terra Cotta Corp., 1750 Wrightwood Ave., Chicago 14, 111. Purdy, James A., Fischer & Porter Co., County Line Rd., Hatboro, Pa. Purdy, Mrs. Ross C., 59 E. Longview Ave., Columbus 2, Ohio Purnell, Hugh J,, 761 Loretta St., Pittsburgh 17, Pa. Pyro Refractories Co. (O. E. Miller), Box 466, Oak Hill, Ohio Q Quick, Donald A. (S), Box F. ,F, Alfred, N. Y. Quigley Company, Inc. (R. J. Demaison), 527 Fifth Ave., New York 17, N. Y. Quirk, John F., 2235 Barrymore Ave., Columbus, Ohio Quirk, Virgil P., Calhoun, Ky. R Rabe, N. A., 10 W. Palmer Ave., Collingswood, N. J. Rabin, William J. (J), 4830 N. Seventh St., Philadelphia 20, Pa. Radczewski, Otto-Ernst, Institut fur Gesteinshuttenkunde, Mauerstrabe 5, Aachen, Germany Radio Materials Corp. (R. D. Bourgerie), 3325 N. California Ave., Chicago, I'll. Ragatz, Eugene C., Allen-Bradley Co., 136 W. Greenfield Ave., Milwaukee 4, Wis. Raggon, Frank C., Jr., 4202 Bowen Rd., Toledo 13, Ohio Raible, A. J., John Douglas Co., Cincinnati 16, Ohio Raine, Frank F.,t 111 E. Vine St., Mexico, Mo. Rait, J. R,, Research Dept., Hadfields, Ltd., E. Hecla Works, Sheffield 9, England Ralston, O. C.,* 4333 Clagett Rd., Hyattsville, Md. Ralston, T. E., Harbison-Walker Refractories Co., 1800 Farmers Bank Bldg., Pittsburgh 22, Pa. Ram, Atma, Central Glass & Ceramic Research Institute, P. O. Jadavpur College, Calcutta 32, India Vol. 32, No. 10 (1953) Ramm, Eric, H. L. Brisbane & Wunderlich, Ltd., Lord St., East Perth, West Australia Ramsden, C. E., C. E. Ramsden & Co., Ltd., Foley Colour & Chemical Works, Fenton, Stoke-on-Trent, England Ramtite Co. (Louis J. Jacobs), 2563 W. 18th St., Chicago 8, 111. Randall, Theodore, Randall Pottery, Wellsville, N. Y. Randolph, Hal'F., Mexico Refractories Co., Mexico, Mo. Rankin, James J., St. Joseph Lead Co., Box 97, Monaca, Pa. Rankine, Adam S., Jr., Martinsville, N. J. Rao, Bh V. Janakirama (S), International Resistance Co., 401 N. Broad St., Philadelphia 8, Pa. Rao, Eleswarapu C. S. (S), School of Mineral Engr., Uni versity of Washington, Seattle 5, Wash. Rapp, Carl H.,t Globe-Union, Inc., 900 E. Keefe Ave., Mil waukee 1, Wis. Rapp, Howard C.t (J), 404 N. Main St., Morton, 111. Rapp, S. W., Jr., Morton Pottery Co., Morton, 111. Rase, Daniel E. (S), 137 E. Park Ave., State College, Pa. Rasmussen, R. K., Mississippi Glass Co., Fullerton, Calif. Rasmussen, Wayland G., Mason City Brick & Tile Co., Mason City, Iowa Rassner, Donald D.,t 224 E. Northview Ave., New Castle, Pa. Ratcliffe, Temple W., 244 Buffalo St., Beaver, Pa. Rathmann, Clyde L., 1 Colonial Lawns, Bath, N. Y. Rauch, Harry W., 415 W. Hickory St., East Rochester, N. Y. Rauscher, Louis C., Jr. (S), 2374 Geneva Ave., Glenside, Pa. Ray, E. Harold, B. F. Drakenfeld & Co., Inc., Box 519, Wash ington, Pa. Ray, John G., Sylvania Electric Products, Cottage Place, Mineola, L. I:, N. Y. Ray, John M. (S), Box FF, Alfred, N. Y. Ray, Sushil, 20-C, Southern Ave., Calcutta 26, India Rea, Robert F., Stupakoff Ceramic & Mfg. Co., Latrobe, Pa. Reagan, Cornelius J., 1243 Fifth Ave., East McKeesport, Pa. Redlich, Paul L., Rotospray Mfg. Co., 562 Washington Blvd., Chicago 6, 111. Reed, A. J., Carborundum Co., Research Dept., Niagara Falls, N. Y. Reed, Carl E., 1326 E. Main St., Lancaster, Ohio Reed, George Clifton, III (S), 207 Parkside Cir., Decatur, Ga. Reed, Norman D.t (S), What Cheer, Iowa Reed, Paul H., 310V2 Fairmont Ave., New Castle, Pa. Reeves, Harold, 343 E. Taggart St., East Palestine, Ohio The Refractories Institute (Avery C. Newton), First National Bank Bldg., Pittsburgh, Pa. Refractory & Insulation Corp. (A. S. Arwine), Port Kennedy, Pa. Regenbrecht, Albert, Jr., Sylvania Electric Products, Inc., Burlington, Iowa Regout, Joseph F. E., N. V. de Sphinx, Maastricht, Holland Reid, Frank P., American Ceramic Society, 2525 N. High St., Columbus 2, Ohio Reid, Harry F., Jr., McKay Co., Grantley Rd., York, Pa. Reilly, Alfred F., Sr., Evans Case Co., 21 East St., North Attleboro, Mass. Reimer, John J.,t Keystone Ceramic Corp., Bendersville, Pa. Rein, Peter, 3757 W. Arthington St., Chicago, 111. Reinker, Arthur G., Johns-Manville Sales Corp., 1530 Guild hall Bldg., Cleveland 15, Ohio Reinker, Gerald E., Lamp Dept., General Electric Co., 1133 E. 152nd St., Cleveland 10, Ohio Reischel, Frank, 2733 Mayflower, Arcadia, Calif. Reising, Joseph A., St. Joseph Lead Co., Zinc Smelting Div., Monaca, Pa. Reiss, Max S., 406 N. Front St., Wheeling, W. Va. Remington, Victor H., B. F. Drakenfeld & Co., Inc., Box 519, Washington, Pa. Remmey, G. Bickley,* Richard C. Remmey Son Co:, Hedley St. & Delaware River, Philadelphia 37, Pa. Remmey, John G., Richard C. Remmey Son Co., Hedley St. & Delaware River, Philadelphia 37, Pa. Remmey, Richard.C., Son Co. (G. Bickley Remmey), Hedley St. & Delaware River, Philadelphia 37, Pa. Rempes, Paul E.t (S), 499 Midgard Rd., Columbus 2, Ohio Renfrew, J. Harvey, 31 Linden Park St., Roxbury 20, Mass. Rengering) William A., 3870 Drakewood Dr., Cincinnati 9, Ohio Renouf, Leonard J., Church St., Youngstown, N. Y. Renskers, Richard H.t (J), 85 Adelaide Ave., Highland Park, N. J. Republic Steel Corp. (B. E. Longwell), 1423 Republic Bldg., Cleveland 1, Ohio Reser, Margie K., 977 Carlisle Ave., Columbus, Ohio Reuning, Charles R. (J), 187 E. Main St., Frostburg, Md. Reuning, George W., Jr.,t 187 E. Main St., Frostburg, Md. Reusche, Frank L., 1459 Clinton Ave., Irvington 11, N. J. Roster 55 ocuter, Raymond, National Aluminate Corp., 6216 W. 66 ' place, Chicago 38, 111. Reynolds, Harry J., 1802 Croft Ave., Aiken, S. C. Reynolds, Harry M., Renite Co., Box 365, Sta. A., Columbus, Ohio phoads, James L. (S)) 2446 Grandview Ave., Mount Penn, ^Reading, Pa. Rhodes, Foster T,, Onondaga Pottery Co., Syracuse 4, N. Y. Rhodes, Fraser B.,t 7134 Maple Ave., Madeira, Ohio Rhodes, Ralph E,, Jr., 1062 W. College Road, Alliance, Ohio Rhodes, Ralph R.,*t 1729 Powell St., Norristown, Pa. Rhoton, Donald G., 18956 Devonshire Rd., Birmingham, Mich, Ricci, Edward Michaelt (J), Country Dr., Olive Hill, Ky. Rice Hal H.J 17 W 25 Oak Lane Dr., Oakdale Woods, Ben- senville, 111. Rice, Murray J., 133 N. Main St., Alfred, N. Y. Rice William H. (S), General Electric Co., Glass Technology Lab-, 1133 E. 152nd St., Cleveland 10, Ohio Rich, Herbert W., Amherst, Va. Richard, Giulio A., Via Cernuschi 1, Milano, Italy Richards, Thomas Z. (J), 10 Underwood Ave., Worcester, Mass. Richardson, H. K.,* 41 Yantecaw Ave., Bloomfield, N. J. Richardson, R. C., The Lovell Clay Products Co., Box 247, Lovell, Wyo. Richardson, Robert M., 5530 Fifth Ave., Pittsburgh 32, Pa. Richmond, Joseph C.*t 4415 Fairfield Dr., Bethesda 14, Md. Richter, C. J., Glass Engineers Inc,, 1301 Clark Bldg., Pitts burgh, Pa. Rick, Clarence A., 441 La Sierra Way, Gilroy, Calif. Ricker, Richard W., Aluminum Co. of America, Aluminum Research Labs., Box 772, New Kensington, Pa. -Rickey, J. H., Jr., Ironton Fire Brick Co., Box 124, Ironton. Ohio Riddell, W. A., Co. (W. H. Merkel), American Clay Machin ery Div., Bucyrus, Ohio Riddle, Frank H.,*t Champion Spark Plug Co., Ceramic Div.. 8525 Butler Ave., Detroit 11, Mich. Riddle, Robert F., Pennsylvania Glass Sand Corp., 140 Stanwix St., Pittsburgh 22, Pa. Ridgeway, Thomas J., Jr. (J), Box 78, Orviston, Pa. Riebe, Donald R..! Alexander H. Kerr & Co., Inc., Box 2008, Santa Ana, Calif. Riegert, Richard P.t (S), Box 995, Alfred, N. Y. Riehl, W., Hanovia Chemical & Mfg. Co., 1 W. Central Ave., East Newark. N. J. Rigby, James E., Blue Ridge Glass Corp., Kingsport, Tenn. Rigderink, Merle D.,* Bell Telephone Labs., Murray Hill, N. J. Riis, 'Asgeir, Robeson Process Co., 500 Fifth Ave., New York 18, N. Y. Riker, Leon W., Jr. (J), Spencer, N. Y. Riley, James H., 125 E. Ninth St., Jacksonville 6, Fla. Riley, Roger R. (J), Gladding, McBean & Co., Pittsburg, Calif. Rindone, Guy E,, Div. of Ceramics, Pennsylvania State Col lege, State College, Pa. Rispler, Z. W., c/o Palestine Glass Works, "Phoenicia" Ltd.. Box 168, Haifa, Israel Ritland, Harold N., Research Lab., Corning Glass Works, Cor ning, N. Y. Ritter. Joseph S.. Adamston Flat Glass Co., Clarksburg, W. Va. Rittler, Hermann (S), Box C-C, Alfred University, Alfred. N. Y. Ritz, Joseph W., Sylvania Electric Products, Inc., 83-30 Kew Gardens Rd., Kew Gardens, L. I.. N. Y. Rivers, Wayland C, Jr., Elgin Standard Brick Mfg. Co.. Perry Brooks Bldg., Austin, Texas Roach, H. C., American Radiator & Standard Sanitary Corp.. 1541 S. Seventh St,, Louisville 8, Ky. Robb. Richard B.. 870 Galloway St., Pacific Palisades. Calif. Robbins, David (J), 4689 Reinhandt Dr., Oakland. Calif. Robbins, Ross W,, Jr. (S), Kappa Psi Upsilon, Alfred, N. Y. Roberson, Cletis L., 350 Moull St., Newark, Ohio Roberts, John Taggart,t 419 Park Blvd., Glen Ellyn, 111. Roberts, Mervin Francis, 116 Carpenter Ave., Crestwood Tucka- hoe 7. N. Y. Robertson. James A., Box 1061. Newark, Calif. Robertson. John M. (J), 103 Kingston Apt. 4, Louisville, Ky. Roberston, R. Kenneth (J), 101 St. Henri St., Laprairie, Que., Canada Robertson, Randal K.. 906 University Tower Bldg., Montreal, Que., Canada Robeson Process Co. ('Asgeir Riis), 500 Fifth Ave., New York 18, N. Y. Robinson, A. J., Laorairie Co.. Inc., Laprairie, Que., Canada Robinson Clay Product Co. (W. E. Robinson), 65 W. State St., Akron 9, Ohio Robinson, F. George, 500 S. Santa Fe Dr., Denver, Col. Robinson, Gilbert C.. Box 91, Clemson, S. C. Robinson, G. R.J 224 Mound St., Logan, Ohio Vol. 82, No. 10 (195.3) Robinson, Louis G., Louis G. Robinson Labs., Box 761, Cin cinnati 1, Ohio ' > Robinson, Percy. Burrill, Diamond Clay Co., Ltd., Hartshill, Stoke-on-Trent, England Robinson, Philip W., R. R. 2, Box 533, Washington, Pa. Robinson, Phillip, 23 Pymble, Sydney, N. S. W., Australia Robinson, Richard E., 315 S. High St., Zelienople, Pa. Robinson, Richard R.,t 12 Horton St., Hammonton, N. J. Robinson, W. E., Robinson Clay Product Co., 65 W. State St., Akron 9, Ohio Robson, H. L., 2 Water St., Lewiston, N. Y. Robson, James T.,*t Allied Engineering Co., 4150 E. 56th St., Cleveland 5, Ohio Roche, L. C.,* Maryland Glass Corp., 2147 Wicomico St., Baltimore 30, Md. Rochester, Thomas W., Jr., 210 Delevan Ave., Corning, N. Y. Rochow, W. F.,* Harbison-Walker Refractories Co., 1800 Farmers Bank Bldg., Pittsburgh 22, Pa. Rockwell, Robert E. (S), 4910 234th St., S. W., Edmonds, Wash. Rodefer, Howard H., Rodefer Glass Co., Box 550, Bellaire, Ohio Rodgers,. Eben, Jr., Alton Brick Co., Alton, 111. Rodman, Clarence J., Box 809, Alliance, Ohio Rodrigues, Antonio, D'Almeida Filho, Av. Automovel, Club 2468, Vicente de Carvalho, Rio de Janeiro, Brazil Rodriguez, Alfonso F., Vidriera Monterrey, S. A., Apaxtado 162, Monterrey, N. L., Mexico Rodriguez, A. R., 29 Pine St., Franklinville, N. Y. Rodriguez, Eduardo, Cia Industrial del Norte, Apartado 226, Saltillo) Coah., Mexico Roe, Lawrence A., 1501 Vilas Ave., Madison 5, Wis. Roff, W. Wallace, 14 Glenside Dr., West Orange, N. J. Rogatz, Alvin, Zenith Radio Corp., 6001 Dickens Ave., Chi cago 39, 111. Rogers, Edwin J., Scintilla Magneto Div., Bendix Aviation Corp., Sidney, N. Y. Rogers, Gregory L., 9500 S. Norwalk Blvd., Los Nietos, Calif. Rogers, Melvin F.,t 55 Goff. St., Corning, N. Y. Rogers, Percy L., Riverton Lime & Stone Co., Riverton, Va. Rogers, Thomas S., 3720 Windom Place, N. W., Washington 16, D. C. Rolke, Herbert J.,t Sociedade de Engenharia Industrial, Rua Marconi, 23, 8 andar, Sao Paulo, Brazil Rollmann, Peter (J), Emmalaan 11, Baarn, Netherlands Rooney, Thomas E., Ill, Empire Fire Brick Co., 219 Murray, Fort Wayne, Ind. Root, H. Dean, Westinghouse Electric & Mfg. Co., K-80, Ma- . terials Engineering Dept., East Pittsburgh, Pa. Root, Lawrence L., Stanford Pottery Inc., 40 S. 15th St., Sebring, Ohio Roques, Rodney A., University of Texas, Austin 12, Texas Rose, Ralph,! E. J. Lavino & Co., Box 29, Norristown. Pa. Rosenthal, E.K., 234 Napoleon St., Playa Del Rey, Calif. Rosenthal, Ernst, 246 Park West, Marble Arch, London W. 2, England Rosenwinkel, George O.. North American Refractories, 59 E. Van Buren, Chicago, 111. Roseville Pottery, Inc. (Robert P. Windisch), Zanesville, Ohio Roshong, Robert L., Steel & Tube Div., Library, Timken Roller Bearing Co., Canton 6, Ohio Roslund, J. A.. Globe Brick Co., East Liverpool. Ohio Ross, Donald W.,*t 5929A Oakhurst Place, St. Louis 12, Mo. Ross, Howard,^ II (J), R.R. 1, Kane, Pa. Ross, Paul F.,t 320 Constitution Ave., Hellertown, Pa. Ross-Tacony Crucible Co. (A. M. Johnson), Tacony, Phila delphia 35, Pa. Ross, Victoria Avakian, 537 Country Club Road. Eugene. Ore. Rossler, Emil (S), Tonwarenfabrik, Ersigen/kt Berne; Switzer land Roth, Harper D., East River Rd., Grand Island, N. Y. Rothermel, Joseph J., Corning Glass Works. Research Lab., Corning, N. Y. Roudabush, Henry L., 3201 Fruitland Rd., Los Angeles 58, Calif. Roudabush, Ned W;, Ant, 119-B, St. Davids Park, St. Davids, Pa. Rough, Robert R., Owens-Illinois Glass Co., General Research Laboratory, 1700 N. Westwood. Toledo 7, Ohio Roup, Rolland.*! Globe-Union, Inc., 900 E. Keefe Ave., Mil waukee 1, Wis. Rous, William C.. Jr.,t 432 Springfield Pike. Cincinnati 15, Ohio Rovani, Tedd, The Evans Case Co., 21 East St., North. Attle boro, Mass, Rowe, C. W. D.. London Brick Co. Ltd., Africa House, Kings- way, London. W. C. 2, England Rowland, Davidge H.,t Porcelain Insulator Co.. Lima. N. Y. Rowland, Donald A., 622 S. Morton St., Okmulgee, Okla. Roster 57 ijmvland, Richards A., Exp. & Prod. Res. Div., Shell Develop ment Co., ^737 Bellaire Blvd., Houston 25, Texas Rowland, Roger W.,* Newcastle Refractories Co., New Castle, Rowlands, Robert R.,t Universal-Rundle Corp., Box 960, New Castle, Pa. Roy, Rustum, Pennsylvania State College, 308 Mineral Sciences Bldg-, State College, Pa. Royal China, Inc. (B. L. Miller), Sebring, Ohio Royal, Herbert F.,* 845 Pilgrim Rd., Birmingham, Mich. Ruark, A. E., Dept, of Physics, University of Alabama, Univer sity, Ala. Rudd! Richard D,, 3335 W. 47th St., Chicago 32, 111. Rudolf, Paul E., Stoneware Factory Embrach, Ltd., Em- brach (Zurich), Switzerland Ruettinger, T. O., Flat Rock Clay Product Co., 26280 Arsenal Rd., Flat Rock, Mich. Rugg, Ormund I., 13615 Meyers Rd., Detroit 27, Mich. Rugh, Kenneth A., Garfield Refractories Co., Bolivar, Pa. Ruh, Edwin (S), 194 Willow Ave., Ext., North Plainfield, 14. J. Ruh, Robert (S), 105 Chester Circle, New Brunswick, N. J. - Ruiz, Jorge M., Amerex, Ingenieros, S. A., Gante 7, Mexico 1, D. F. Ruiz, Robert A., 114 W. Home St., Vandalia, Mo. Rulon, Richard M., Sylvania Electric Products, Inc., 60 Boston St., Salem, Mass. Rushmore, Murray, Moore & Munger, 33 Rector St., New York 6, N. Y. Ruso, Felipe B., Galiano 109, Habana, Cuba Russell, Graden J. (S), Fletcher, N. C. ; Russell, Howard F., 20918 Homeland Rd., Matteson, 111. Russell, Lewis E. (S), Graduate House, Mass. Inst, of Tech., Cambridge 39, Mass. Russell, Norman Keith,t St. Davids Park Apts., St. Davids. Pa. Russell, P. N., General Electric Co., Electronic Div., Elec tronics Park, Syracuse, N. Y. Russell, Ralston, Jr.,*! Dept, of Ceramic Engineering, 126 Lord Hall, Ohio State University, Columbus 10, Ohio Russell, Robert G., R. R. 2, Granville, Ohio Rustless Iron Co., Ltd. (H. Whitaker), Trico Works, Keigh ley, England Rutkowski, Arthur R., Titanium Alloy Mfg. Div., National Lead Co., Niagara Falls, N. Y. Ryan, D., Edward Curran Engineering, Ltd., Cardiff, Wales Ryan, Joseph D., 3018 Middlesex Dr., Toledo 6, Ohio Ryckman, David A., Sr., 146 N. Washington St., Tiffin, Ohio Ryder, John W., 2475 N. W. Overton St., Portland 10, Ore. Ryder, Robert J. (S), 311 E. Beaver Ave., State College, Pa. Ryland, H. W., Coors Porcelain Co., Golden, Col. Rynders, Gerald F., National Bureau of Standards, Div. 9.7, Washington 25, D. C. Ryshkewitch, Eugene, Kearfott Co., Inc., Little Falls, N. J. S Sada, Patricio, Troqueles & Esmaltes, S. A., Apartado Postal 371, Monterrey, N. L,, Mexico Sada, Roberto G., Jr., Keramos, S. A., Apartado Postal 956, Monterrey, N. L., Mexico Sadowski, J. Richardt (S), 1139 Sixth Ave., Ford City, Pa. Saibel, Edward, Carnegie Inst, of Tech., Schenley Park, Pitts burgh 13, Pa. Sailer, Edward (S), Box BB, Alfred, N. Y. Sales, Jose (S), Apartado Aero 12-26, Barranquilla, Colombia Salinas, Mario, Montes Carpatos #625, Mexico 10, D. F., Mexico Salisbury, William R., Lyndon Rd., Fayetteville, N. Y. Salomon, Allen N., 103 Village Dr., Apt. 112, Syracuse, N. Y. Saltman, Donald, 1831 E. Second St., Long Beach, Calif. Sammons, Frederick C., General Refractories Co., 3201 Fruit- land Ave., Los Angeles 58, Calif. Sampson, J. Leonard, Mahoning Glass Works, General Elec tric Co., 403 N. Main St., Niles, Ohio Samson, A. William, B. F. Drakenfeld & Co., Inc., Box 519, Washington, Pa. Samuel, Donald G., 811 Buttonwood St., Norristown, Pa. Sanborn, Paul H., 2514--23rd St., Parkersburg, W. Va. Sand, Reuben, 8 N. Blount St., Madison 3, Wis. Sanders, Clyde A., American Colloid Co., Merchandise Mart, Suite 813, Chicago 54, 111. Sanders, Herbert H., 17926 Daves Ave., Los Gatos, Calif. Sanderson, K. W., John G. Stein & Co., Ltd., Bonnybridge, Scotland Sandford, Per Johan Folke, Chalmers Tekn, Hogskola, Gote_ berg, Sweden Sandmeyer, Karl H.. 908 87th St., Niagara Falls, N. Y. Sands, George, Imperial Smelting Corp., Avonmouth, Bristol, England Vol. .32, No. 10 (1953) Sanford,.Elbert A., 375 Oakridge Dr., Rochester 17, N. Y. San Miguel Brewery Glass Factory (A. Villa-Abrille), 132 Aviles, Manila, Philippines Sant, John W., Universal-Rundle Corp., New Castle, Pa. Santomieri,' Lewis S.,t Box 8, Botkins, Ohio Sapp, Clifford E., American Ceramic Society, 2525 N. High St., Columbus 2, Ohio Sarakauskas, Raymond, National Carbon Research Labs., Box 6087, Cleveland, Ohio Sarraf, Edward M., 20001 Laurel Ave., Rocky River 16, Ohio Sauereisen, C. Fred, Sauereisen Cements Co., Sharpsburg Sta., Pittsburgh 15, Pa. Saul, Bert (S), 1470 Kay Lane N. E., Atlanta, Ga. Sauls, J. B.,t Funkhouser Co., Blue Ridge Summit, Pa. Saunders, Alfred C.,! 90 Center St., Hamburg, N. Y. Saunders, Hollis S., O. Hommel Co., Box 475, Pittsburgh 30, Pa. Saunders, R. H., Box 349, Charleston 22, W. Va. Saveli, Fred H., 1901 E. Slauson Ave., Los Angeles 58, Calif. Savioli, Francesco, Istituto Siderurgico Finsider, Villa Brignole-Corso F. M. Perrone, 24, Genova-Cornigliano, Italy Sawai, Ikutaro, Kyoto University, Kyoto, Japan Sawyer, E. C., Central Silica Co., 806 Market St., Zanesville, Ohio Saxe, Charles W., 1 Wawecus Rd., Worcester 5, Mass. Saxonburg Ceramics (George H. Aderhold), Box 100, Saxon- burg, Pa. Scales, John B.,t 7710 Franklin Blvd., Cleveland 2, Ohio Schaa, Ferdinand A., Jr. (J), 84 Paumanake Ave., Babylon, N. Y. Schabacker, H. Eric, Erie Ceramic Arts Co., 423 W. 12th St., Erie, Pa. . Schaefer, Carl F.; 327 Sheffield Ave., Flint, Mich. Schaefer, William H. (J), 814 Morewood Ave., Pittsburgh, Pa. Schaefle, Max, Office of the Resident, Rep. of the U. N. B., Padra Faura St., Manila, Philippines Schatzkin, Harvey, Architectural Tiling Co., Inc., Cass/Jackson Sts., Keyport, N. J. Schauss, Edward P., 2324 108th St., Toledo, Ohio Scheel, Hans P., Box 141, Sedro Woolley, Wash. Schelby, Frederick, Corning Glass Works, Corning, N. Y. Schell, Donald C., 1522 N. Massasoit Ave., Chicago 51, 111. Schermerhorn, J. A., National Ceramic Co., 500 Southard St., Trenton 2, N. J. Schiefferle, James A., 2320 Union Ave., Wesleyville, Pa. Schiene, Quentin J. (J), 5406 S. Harper Ave., Chicago 15, 111. Schifferli,. Leo M., Jr., Metals Research Labs., Box 580, Niagara Falls, N. Y. Schlacks, Richard J.,t 4519 S. Wigger, Marion, Ind. Schlegel, Roland F., Rua Groenlandia 552, Sao Paulo, Brazil Schlehr, W. Raymond,! Brockway Glass Co., Inc., Lapel, Ind. Schloffman, J. Paul, Temco, Inc., 4104 Park Ave., Nashville, Tenn. Schlotzhauer, Leon R., R. R. 2, Painted Post, N. Y. Schmid, Arthur W., Arthur W. Schmid Co., 1414 Investment Bldg., 239 Fourth Ave., Pittsburgh 22, Pa. Schmid, Robert L., Jr., 9 Palmers Lane, Wallingford, Delaware County, Pa. Schmidt, Beuther L., Anchor Hocking Glass Corp., Lan caster, Ohio Schmidt, William G., Ceramic Div., General Electric Res. Lab., The Knolls, Schenectady, N. Y. Schmunk, Louis, 70 Dunedin Dr., Toronto 18, Ont., Canada Schneider, Matthew P., Jr., 2931 William Tell St., S'lidell, La. Schneider, Robert K.t (S), 237 E. Fifth Ave., Lancaster. Ohio Schoeffler, Paul W. (J), 1827 Kingsdale Ave., Redondo Beach, Calif. Schoemaktr, George, Arketex Ceramic Corp., 6 N. Walnut St., Brazil, Ind. Schoeninger, Irvin W.,t 5250 N. Shoreland Ave., Milwaukee 11, Wis. Schoenlaub, Robert A., Sylvester & Co., Aurora Rd., Solon, Ohio Schoeppel, Norman,! 10-Elm Tree Dr., Mexico, Mo. Schofield, Daniel A., Ch. E. B. 310, University of Texas, Austin, Texas Schofield, H. Zane,*! 894- Chambers Rd., Columbus 12, Ohio Scholes, Addison B., Sylvania Electric Products, Inc., 825 Lex ington Ave., Warren, Pa. Scholes, S. R.,* Box 752, Alfred, N. Y. Schols, Leon V, F. M., Graaf Van Waldeckstraat 33, Maas tricht, Holland Schoonenberg,. P. J., Bibliotheekcentrale, N. V. Philips' Gloeilam- penfabrieken, Eindhoven, Holland Schotsman, J., Kruisstraat 31, Dieren, Netherlands Schottland, A. H., Standard Bent Glass Co., Butler, Pa. Schotts, Walter H.,1 23 E. Southington Ave., Worthington, Ohio Roster 59 crhrader, David M. (J), Apt. 11, 23 City Ave., Bala Cynwyd, crhramm, Edward,* Onondaga Pottery Co., Syracuse 4, N. Y. Schreckengost, ^on>* 2617 St. Clair Ave., East Liverpool, Schreckengost, Viktor, 2265 Stillman Rd., Cleveland Hts. 18, Cr^rewelius, Nils G., A B Kanthal, Hallstahammar, Sweden Irhrickel, Herman H., Jr., 178 E. Pulteney St., Corning, N. Y. Schroeder, Fred W.,*t A. P. Green Fire Brick Co., Mexico, iio. Schroll, J. R., Manufacturers Equipment Co., 218 Madeira Ave., Dayton 4, Ohio -huetze, Ervin W. (J), 1310 E. Promenade St., Mexico, Mo. "huh, Arthur E., United States Pipe & Foundry Co., Burling ton, N. J. ... Schulhof, Andres, Lozadur, Grandes Fabricas Argentinas de Ceramica, S. A., Boulogne, F. C. N. G. B., Buenos Aires, `Argentina _ Schultz, James B.,t 209 N. Canal St., Alexandria,"Ind. Schulz, Eugene G., Jr. (S), 930 Grand Concourse, Bronx 56, N. Y. Schumacher, William G., 5956 N. Glenwood Ave., Chicago 40, . Schurecht, H. G.,*! Champion Spark Plug Co., 8525 Butler Ave., Detroit 11, Mich. Schurtz, D. D.,* Sharp-Schurtz Co., Lancaster, Ohio Schwab, Leon B., 214 E. Home St., Vandalia, Mo. Schwalbe, F. G.,*t 1306 Craigwood Rd., Toledo 12, Ohio Schwartz, Bernard,! 96 Duff St., Watertown 72, Mass. Schwartz, Harold A., Sr. 2028 Horace Ave., Abington, Pa. ;Schwartz, M. A.,! WCRRL, Aeronautical Res. Lab., W.A.D.C., : Wright-Patterson AFB, Ohio Schwartzwalder, Karl,*! A C Spark Plug Div., General Motors Corp., Flint 2, Mich. Schweickhardt, William K., 101 Ferry St., St. Louis 7, Mo. Schwiete, Hans-Ernst, Institut fur Gesteinshuttenkunde, Aachen, Mauerstrabe 5, Germany Schweitzer, Howard V., Schweitzer Equipment Co., 3764 Ridge Rd., Cleveland 9, Ohio Scott, J. W., 7640, Western Electric Co., Inc., Hawthorne Sta., Chicago 23, 111. Scott, M. R.,! Bausch & Lomb Optical Co., Rochester 2, N. Y. [Scott, Robert M.t (S), 81 Fairfield St., Worcester, Mass. Scott, Roger F.,1 911 E. Main St., Millville, N. J. . Scott, W. J., R.R. 11, Box 33, Indianapolis 19, Ind. Scott, William D. (S), 7707 Water St., Olmsted Falls, Ohio Seabright, Clarence A., 2201 Wascana Ave., Lakewood 7, Ohio Seabright, Edward C., 171 Beuland, Mt. Clemens, Mich. : Seanor, J. G., 2300 W. Tuscarawas St., Canton 8, Ohio Searle, A. B., 62, Moorcliffe, Skircoat Moor Rd., Halifax, York, England Searson, Leslie, James Oakes & Co. (Riddings, Ltd.) Jacks- dale, Notts, England Seaton, Max Y.,* Westvaco Chemical Div., Food Machinery & Chemical Corp., 161 E. 42nd, New York 17, N. Y. Seawell, Joe, Jr., Miller Equipment Co., Inc., Box 1566, Salis bury, N. C. Seckman, Harry D.,1 3721/2 E. Fifth, Peru, Ind. Secord, Robert N., Godfrey L. Cabot, Inc., Res. & Development Dept., 38 Memorial Dr., Cambridge, Mass. _ Sedalia, B. M. (S), Ceramic Dept., Missouri School of Mines, Rolla, Mo. Sedenka, Anthony, 1086 Magnolia Dr., Colonial Heights, Washington, Pa. Seeley, E. L., 1012 Neptune Ave., Chester, W. Va. Seemann, Wilhelm, Pipersgatan 3, Stockholm, Sweden Segeler, C. G., American Gas Assn., 420 Lexington Ave., New York 17, N. Y. Seidel, Joseph, IO6V2 S. Sweetzer Ave., Los Angeles 48, Calif. Seitz, Wolfram, Glass Containers Inc., 3601 Santa Fe Ave., Los Angeles 58, Calif. Sellers, John T.,t 109 Church St., Jackson, Ohio Semmelman, John O.,! Dentists Supply Co. of New York, College & Grantley Ave., York, Pa. Semple, William A., Chemicals Div., Aluminum Co. of Can- ada, Ltd., 1700 Sun Life Bldg., Montreal, Que., Canada Senters, Walter J., Washington Brick & Lime Co., Spokane, Wash. Sephton,' H. J., Dominion Glass Co., Ltd., Chappie St., Hamil- ton, Ont., Canada Servis, Donald H., Robertson Manufacturing Co., Box 848, Trenton 5, N. J. Setchel, Hayden Merritt, 105 Tenth St., Streator, 111. Severin, Harold (S), Box J-3, Alfred, N. Y. Seversike, Carroll L., 84 Sutherland Rd., Apt. 10, Brighton, ,, Mass. Seymour, Samuel L., 125 Reed St., New Kensington, Pa. Shaffer, E. F., Ohio Power Co., Newark, Ohio Vol. 32, No. 10 (1953) Shaffer, Paul C., 85 Chapel St., Seneca Falls, N. Y. Shah, Chunilal P., Bombay Potteries & Tiles, Ltd., United India Bldg., Sir Pherozshaw Mehta Rd., Fort Bombay, India Shand, Errol B., 155 Reynolds Ave., Corning, N. Y. Shand, Rodger, L. (J), Apt. 15, 4155 Dupuis Ave., Montreal 26, Que., Canada Shands, Everett H., Florida Ceramic Tile Co., Box 451, 608 Prospect Rd., Lakeland, Fla. Shank, Jacob R., Engineering Experiment Sta., Ohio State University, Columbus 10, Ohio Shanks, Douglas, Shanks & Co., Ltd., Victorian Pottery, Barrhead, Near Glasgow, Scotland Shannon, Harry F., 2413, 525 Wm. Penn Place Bldg., Pittsburgh 30, Pa. Shapiro, Howard! (J), 1410 East Ave., New York 62, N. Y. Shapland, James T. (S), 511 S. Lynn St., Champaign, 111. Shardlow, L. Russel, RCA Victor Div., Radio Corp. of America, Harrison, N. J. Sharp, Donald E.,* Libbey-Owens-Ford Glass Co., 1701 E. ' Broadway, E. Toledo 5, Ohio Sharp, Everett W.,t 62 N. High St., Jackson, Ohio Shartsis, Leo, 4514 W. Virginia Ave., Bethesda 14, Md. Shaug, Frank E., Pacific Div., Bendix Aviation Corp., 11600 Sherman Way, N. Hollywood, Calif. Shaver, Richard C., 318 Milburn Dr., Syracuse 7, N. Y. Shaver, W. W., 130 E. Fourth St., Corning, N. Y. Shaw, Anthony E., Natco Corp., 327 Fifth Ave., Pittsburgh 22, Pa. Shaw, Clarence F.,! 2240 N. Manning St., Burbank, Calif. Shaw, L. I.,! Club DelMar, Santa Monica, Calif. Shaw, M. C.,*f Dept, of Ceramics, Rutgers University, New Brunswick, N. J. Shaw, Ronald H., L.' E. Shaw, Ltd., 74 Bedford Row, Halifax, N. S., Canada Shavna, Michael (J), 506 S. Railway St., Swift Current, Sask., Canada Shearer, Walter L., 15 Muirhead Ave., Trenton 3, N. J. Shearer, Wayne B. (J), 103 S. East St, Spring Grove, Pa. Shearouse, Lee A., 326 Highland Ave., Wadsworth, Ohio Sheehan, Robert W. (J), Ceramic Supply Co., Crooksville, Ohio Sheerer, Mary G.,* 6540 Hamilton Ave., College Hill, Cincin nati, Ohio Sheets, Herbert D.t (J), 41 Marlowe Ave., Blasdell, N. Y. Sheheen, Alexander, Box 127, Alfred, N. Y. Sheldon, Richard S., 4224 Le Fevre Dr., Dayton 9, Ohio Shell, Haskiel R., Electrotechnical Lab., U. S. Bureau of Mines, Norris, Tenn. Shelley, C. B.,f General Refractories Co., 3201 Fruitland Rd., Los Angeles 11, Calif. Shelton, G. R.,* 6614 Delfield St., Chevy Chase 15, Md. Shelton, Philo S., Jr. (S), Box 706, Alfred, N. Y. Shenango Pottery Co., New Castle, Pa. Shepard, Anna O., 751 11th St., Boulder, Col. Shepherd, John .F.,! Shepherd Chemical Co., Norwood, Cin cinnati 12, Ohio Sherk, Donald, 12115 Harvard Dr., Pittsburgh 35, Pa. Sherrill, Ernest, Westwood Ceramics Supply Co., 11250 W. Pico Blvd., Los Angeles 64, Calif. Sherrill, Robert R., 945 Industrial PL, E'l Cajon, Calif. Sherwin, Ronald W., H. R. Johnson, Ltd., Tunstall, Stafford, England Sherwood, Robert F.,*f 33 Summit Rd., Port Washington, Long Island, N. Y. Shevlin, Thomas S.,1 Engr. Expt. Sta., Ohio State University, Columbus 10, Ohio Shield, Richard (S), University of Texas, C. P. Hall, Rm. 107, Austin, Texas Shimada, Hachiro, No. 2867, 1-Chome, Sanno, Ota-ku, Tokyo, Japan Shimada, Kuro, Shimada Glass K. K., No. 47 Shimo-3-Chome, Ebie, Fukushima-Ku, Osaka, Japan Shimer, J. B'., 3212 Kenwood Blvd., Toledo 6, Ohio Shimman, Norman C., 2348 Ventura Dr., R. R. 4, Walled Lake, Mich. Shinn, Joseph M., Jr., 437 Vermont PL, Columbus 1, Ohio Shipley, R. A., NATCO Corp., 327 Fifth Ave., Pittsburgh 22, Pa. Shively, R. R.,* Box 519, Washington, Pa. Shively, Robert R., Jr., Mathieson Chemical Corp., 2416 Gulf Bldg., Houston, Texas ' Shoemaker, Clifford P., Laclede-Christy Co., 812 Arcade Bldg., St. Louis 1, Mo. Shoffner, James E., Jr., Box 159, lone, Calif. Shonkwiler, Francis P.,! 10436 S. Hamlin Ave., Chicago 43, 111. Roster 61 chook, Thurston W., British Ceramic Service Co., Ltd., 5 Bricesco House, Park Ave., Welstanton, Stoke-on-Trent, England chnok, William B.t (S), 3035 Pontiac St., Columbus, Ohio Shoot, Lyle E. (J), 7064 Eastern Ave., Washington 12, D. C. Chooher, Sterling D., 415 E. Monroe, Mexico, Mo. Short, Albert P., Charles Taylor Sons Co., 401 N. Broad St., Philadelphia 8, Pa. Short, Allan M., 1643 A, Saudi Arabia Shorter, A. J., Bonnybridge Silica & Fireclay Co., Ltd., Bonnybridge, Stirling, Scotland Shulze, Charles E.t (S), 809 E. Sixth St., Rolla, Mo. Shurtz, Robert F., 258 W. Basic Rd., Henderson, Nev. _ Shute, Robert L., Battelle Memorial Inst., 505 King Ave., Columbus 1, Ohio Sidwell, John L., H. C. Spinks Clay Co., Inc., 1000 First Na tional Bank Bldg., Cincinnati 2, Ohio 5jefert, August C, Owens-Corning Fiberglas Corp., Newark, feohio . ' ' - iJv.W . Siegrist, Paul Fi" Erie Resistor Corp., 644 W112th St., Erie) Pa. Siegwald, Clyde R.,t 816 Quinby Ave., Wooster, Ohio Sievert, Guilio E., 2645 Hollister Terrace, Glendale 6, Calif. Signorella, Joseph E., 1812 Kenneth Ave., New Kensington, Pa. Sigwart, Harry J., 732 Beechurst Ave., Morgantown, W. Va. Silk, Karl, Messrs. Jury Holloware Ltd., Brierley Hill, Staffs, England Silva, Alfonso, Refractories "Lota Green" S. A., Casilla 145 V, Valparaiso, Chile Silverman, Alexander,*! 1514 Denniston Ave., Pittsburgh 17, Pa. Efe-Silverman, William B.,*t Owens-Illinois Glass Co., 1700 Westwood Ave., Toledo 1, Ohio Simavilla, Juan M., c/o Cristalerias Rigolleau, S.A., Beraza- tequi, F. C. N. G. R., Buenos Aires, Argentina Simcock, H. J., "Cranford," Lovatt Ave., Milehouse, New castle, Stafford, England Simison, A. L.,! Owens-Corning Fiberglas Corp., Toledo, Ohio Simmen, Fred G., 964 Terrace Blvd., Trenton 8, N. J. Simmingskold, Bo, Glasinstituet i Vaxjo, Smedjegatan 3, Vaxjo, Sweden Simmons, E. E., Jr., 455 S. Oakland Ave., Pasadena 5, Calif. Simmons, Milton L., Ferro Corp., International Div., 4150 E. 56th St., Cleveland 5, Ohio Simmons, Thomas Short (S), Box 5247, Georgia Tech, Atlanta, Ga. Simon, A. G., 3650 Fairdsta, LaCrescenta, Calif. Simonds Worden White Co. (F. R. Henry), N. Summit St. & Negley Place, Dayton 7, Ohio ;aci Simonis, Paul, Administrateur-delegue, Societe Beige de Ceramique "Cerabel," 2, rue de la Regence, Bruxelles, Belgium Simons, T. Mitchell, Jr., 9186 E. Jaylee Dr., Temple City, Calif. Simonsen, Victor G., Ceramica Sao Caetano S. A., Caixa Postal 278, Sao Paulo, Brazil involves! ie selec-i 5 widely! Simpson, Alexander,! R.R. 1, Sarver, Pa. Simpson, Frederick H. (S), 9046--12th Ave., N. W., Seattle 7, Wash. Simpson, Harold E.,*t New York State College of Ceramics, . Alfred, N. Y. arbison| pes andj Simpson, James E. (J), 3431 Mapledale Rd., Cleveland 9, Ohio Simpson, Thomas P., Socony-Vacuum Oil Co., Inc., Research _& Development Dept., Paulsboro, N. J. 11 classes! nd basic! Sinclair, Robert R., 510 S. Osage Ave., Inglewood, Calif. Singer, Felix,* Keramos House, 46, Castlemaine Ave., S. Croydon, Surrey, England ;inds off e brick, Singmaster, James A., 420 Lexington Ave., New York 17, N. Y. Sirovy, George, Century Vitreous Enamel Co., 6641 S. Narra- special^ gansett Ave., Chicago 38, 111. Siska, Albert H.f (J), 822 Ellis Ave., Ashland, Ohio Sissons, Gordon H., 320 First St., Medicine Hat, Alta., Canada le kinds;: Sixt, Lawrence F., Box 3, Wellsville, Ohio life and| ficientlyl Skellv, David C., 904 Vermont Ave., Pittsburgh 34, Pa. Skelly, John C. (J), Old York Rd., Hartsville, Pa. Skeoch, Walter K., 320 S. Mission Rd., Los Angeles 33, Calif. Skinner. Kenneth G.,! 3615 Lucinda Dr., Knoxville 18, Tenn. Skinner, Roger D., 600 Montour St., Montoursville, Pa. Skogen, Haven S. (S), 198 Bevier Rd., University Heights, New Brunswick, N. J. Skok, John J. (S), 1434 N. Ridge Rd., Lorain. Ohio W Skurcenski, Anton, H. I. Thompson Co., 1733 Cordova St., Los Angeles 7, Calif. Slayter, Games,* Owens-Corning Fiberglas Corp., Newark, Ohio Slick, E. E., Jr., Haws Refractories Co., 407 Main St., Johns town, Pa. Sluss, Olen R., 715 S. Chapel St., Louisville, Ohio Bulletin! Vol. 32, No. 10 (1953) Slyh, John A.,*! Battelle Memorial Institute, 505 King Ave., Columbus, Ohio Small, Carlton F., Jr. (J), 602 Noble St., Norristown, Pa. Smalley, Howard F.,1 Research Div., Pemco Corp., 2554 Green- mount Ave., Baltimore 18, Md. Smart, Frank H., 24 Frederick St., Montclair, N. J. Smith & Stone, Ltd. (W. B. Ford), Georgetown, Ont., Canada Smith, Adrian F., 86 E. Third St., Corning, N. Y. Smith, Alden J., 524 W. Findlay St., Carey, Ohio Smith, A. O., Corp. (W. A. Deringer), 3533 N. 27th St., Mil waukee, Wis. Smith, Arnold N., T & R Boote, Ltd., Burslem, Stafford, England Smith, C. A.,! Mexico Refractories Co., Mexico, Mo. Smith, Dudley C., Main & Chestnut, Vineland, N. J. Smith, Earl R., Research- Labs., Pittsburgh Plate Glass Co., Creighton, Pa. Smith, G. Sherwood (S), R. R. 4, Jefferson, Iowa Smith, Gail E.;;R':R. _3, Box 120, Corning, N. Y. --... Smith, Hi P.; Jr.f'Hufford Machine Works, Inc., 1700 E. Grand Ave., El Segundo, Calif. Smith, H. Russell, Box 757, East Liverpool, Ohio Smith, Harlan D., Wellsville Fire Brick Co., Wellsville, Mo. Smith, Harry W., 9825 Eastbrook Dr., Overland 14, Mo. Smith, Herbert A., Palm, Fechteler & Co., Box 750, East Liverpool, Ohio Smith, Hillard A.,t 159 Chestnut Ave., Metuchen, N. J. Smith, Howard J., 101 Godwin Ave., East Paterson, N. J. Smith, J. Ernest, 1317 Putnam Ave., Plainfield, N. J. Smith, J. Talbot, 44 Lookover Lane, Yardley, Pa. Smith, James, United Fireclay Products, Ltd., Bathville Office, Armadale, West Lothian, Scotland Smith, James N., Jr., "Arborlaen," R.R. 5, New Bern, N. C. Smith, John J., 1107 Highland St., Tarentum, Pa. Smith, Karl W. S., Charles Taylor Sons Co., Cincinnati 14, Ohio Smith, Kenneth E.,*! 4717 W. 16th St., Indianapolis 44, Ind. ^ Smith, Leland, Box 52, Holly Springs, Miss. Smith, Peter Williamson, 20 Park Ave., Flemington, N. J. Smith, Ralph O., 30 Chestnut St., Salem, N. J. Smith, Richard D., c/o P. Max Smith, Box 24, Beach City, Ohio Smith, Richard E., 114 Pleasant St., Manchester, Mass. Smith, Richard M., 215 Seneca St., Corning, N. Y. Smith, Robert A., Murray Corp. of America, 1900 S. Washing ton, Scranton) Pa. Smith, Robert K., 149 Reynolds Ave., Corning, N. Y. Smith, Rowland D., 12 Woodlawn Ave., Corning, N. Y. Smith, Rufus J., Jr., 306 S. Jefferson St., Goldsboro, N. C. Smith, T. Sydney (S), Brightwood, Va. Smith, William L., Harris Clay Co., Spruce Pine, N. C. Smithberger, Earl, American Kitchens Div. of Avco, 18th St., Connersvi'lle, Ind. Smock, Alden W., 41 Euclid Ave., Columbus 1, Ohio Smoke, Edward J., 11 Edgewood Rd., Metuchen, N. J. Smoot, Bransford A. (J), 509 E. Promenade, Mexico, Mo. Smoot, Jack M.,f Chamblee, Ga. Smothers, W. J., Box 64, University Sta., Fayetteville, Ark. Smyly, James P. (J), 1924 Ashland Ave., Charlotte, N. C. Smyth, Harold T., New Jersey Ceramic Research Sta., Rut gers University, New Brunswick, N. J. Snoddy, John H., 2501 Verbena Dr., Los Angeles 28, Calif. Snow, L. James, Mifflinville, Pa. Snow, Roland B., Research Lab., United States Steel Corp., Kearny,- N. J. Snyder, Ernest B.,f Wheeling Steel Corp., Steubenville S. Plant, Steubenville, Ohio Snyder, Nicholas H., 531 Maple Ave., Trenton 8, N. J. Societa Italiana Refrattari Marghera Azionaria (Domenico Giacomelli), Via Industrie 52, Casella Postale 38, Marghera, Italy Societe Ceramique (Comte L. de Meeus d'Argenteuil), Hoge Barakkenstraat 6, Maastricht, Netherlands Societe Francaise De Ceramique (Y. Letort), 44 Rue Copernic, Paris 16, France Society of Glass Technology, R. W. Douglas, "Thornton", Hallam Gate Rd., Sheffield, 10, England Socony-Vacuum Oil Co. (W. B. Stevens), 26 Broadway, New York 4, N. Y. Soderstrum, William K. (J), 1151 Bookcliff Ave., Grand Junc tion, Col. Sohn, Erwin,* Box O, Sta. A, Joplin, Mo. Solomon, Earl,! 1657 Boston Ridge Rd., Orchard Park, N. Y. Solvay Process Div., Allied Chemical & Dye Corp., Librarian, Syracuse 1, N. Y. Somers, A. J., Borax Consolidated, Ltd., Regis House, King William St., London E. C. 4, England Sommerville, J. L.,t 283 Atlantic St., Bridgeton, N. J. Roster 63 J. G feet] . mpany goodies, Merrill C., Paden City Pottery Co., Paden City, g^'nshine, Lewis (S), 1215 Pennsylvania Ave., E., Warren, <- PllatZ. i Arthur,! 8054 S. Crandon Ave., Chicago 17, 111. coiman, Robert B.*t (Honorary), School of Ceramics, Rutgers 5 University, New Brunswick, N. J. cmtli Furman, Jr., Lava Crucible-Refractories Co., First Na tional Bank Bldg., Pittsburgh 22, Pa. . Southern Potteries, Inc. (H. W. Kibler), Box 279, Erwin, si it up to variety is mold lei "Y"" made L. Bulletin I Sovereign Potters, Ltd. (R. V. Miller), Hamilton, Ont., ..cowman, Harold G., 1480 Grand Bivd., Schenectady, N. Y. fcoxman, Edwin J.t (S), Box 117, Alfred N. Y. Spangenberg, William C. (J), Metal & Thermit Corp., Car teret, N. J. Soarks, Edgar W., 406 Unaka Way, Erwin, Tenn. fescarrow, Paul F., 610 Shady Dr. E., Pittsburgh 16/ Pa. ^Speers, Samuel FI, The Evans Case Co., 21 East-St., North `Attleboro, Mass. Speil Sidney,! Johns-Manville Co., Research Ctr., Manville, N. J. Spence, C. F., 1004 Grandon Ave., Columbus 9, Ohio Spence, Harold I., Klabin Irmaos & Cia, Ave. Suburbana, 5472 Meier, Rio de Janeiro, Brazil Spencer, Charles D.,* Lamp Development Lab., Lamp Dept., General Electric Co., Nela Park, Cleveland 12, Ohio Spencer, Howard G., III,t 232 N. Main St., Suffolk, Va. Spencer-Strong, G. H.,*+ 109 Witherspoon Rd., Baltimore 12, Md. . ^ Spengler, H. H., Glass Technology Lab., General Electric Co., 1133 E. 152nd St., Cleveland, Ohio Sperring, Richard F. (J), U.S.S. Ashtabula (AOS1) c/o FPO, San Francisco, Calif. Spinks, H. C., Clay Co., Inc. (R. B. Carothers), Box 829, Paris, Tenn. Spinner, Sam, National Bureau of Standards, Washington, D. C. Spires, Lowell Albert, Gibson Refrigerator Co., 515 W. Williams St., Greenville, Mich. Spires, Stephen T.,t North American Refractories Co., Mt. Union, Pa. Spoerry, Henry,. J. Schmidheiny & Co., Ltd., Heerbrugg, (St.G.), Switzerland Spriggs, Richard M. (J), 35 Murtland Ave., Washington, Pa. Spring, George E. (S), Box 3517, Georgia Tech., Atlanta, Ga. Sproat, Ira E.,*t R. T. Vanderbilt Co., 230 Park Ave., New York 17, N. Y. Spurck, Richard F., Coors Porcelain Co., Golden, Colo. Square D Company (Ralph E. Hanna), Molded Insulation Div., Peru, Ind. Squier, Arthur A., 1616 Walnut St., Philadelphia 3, Pa. Staatliche Porzellan-Manufaktur Berlin (Gerhard Muller) (13a) Selb/Oberfr., Hartmannstrasse 1-3, U. S. Zone, Ger many Staats, Henry N., 7300 W. Lawrence Ave., Chicago 31, 111. Stach, Otto R., The Carborundum Co., Refractories Div., Box 268, Perth Amboy, N. J. Stadler, Leo E., 1057 Plymouth St., Windsor, Conn. Staflicker, Charles F., 506 Grandview Ave., Vineland, N. J. Stafford, W. L.,*t Johns-Manville Research Center, Box 159, Manville, N. J. Stahmann, John A., 4275 Verdugo Rd., Los Angeles 65, Calif. Stalego, Charles J., 227 N. Fifth St., Newark, Ohio Standard Brick & Tile Corp. (Clifford A. Kleymeyer), Evans ville 8. Ind. Standard Ultramarine & Color Co. (L. F. May), Huntington 18, W. Va. Stangl Pottery (J. M. Stangl), Trenton 4, N. J. Stangl, J. M., Stangl Pottery, Trenton 4, N. J. Stanislaw, T. Stanley, Box 354, Centerport, L. I., N. Y. Stannard, Wi'lford T., J. A. Dedouch Co., 608 Harrison St., o Oak Park. 111. Stansfield, J. R. D., Streator Brick Co., Streator, 111. Stanworth, John E., 74 Ashlawn Rd.. Rugby, Warwick, England Stapleton, Robert E. (J), Box 34, Franklinville, N. Y. Star Porcelain Co. (Daniel W. Luks), Trenton, N. J. Stark Ceramics, Inc. (J. H. Stewart), Box 230, Canton, Ohio Starkey, Daryle D., R. R. 1, Willard, Ohio Starkey, Elmer, 4720 Bayard St., Pittsburgh 13, Pa. Staudt, August, 264 Water St,, Perth Amboy, N. J. Stauffer Chemical Co., 420 Lexington Ave., New York 17, N. Y. Stauffer, Kenneth H. B., 49 N. Water St., Spring Grove, Pa. Stavrolakis, J. A., 10108 S. Calhoun Ave., Chicago 17, 111. Steck, C. O., One 28th St., Pittsburgh, Pa. Steele, G. Allen, 546 Cedarhurst Ave., Dayton 7, Ohio VoL. 32, No. 10 (1953) Steele, Harry L., Shorter'& Son, Ltd., Copeland St., Stokeon-Trent, England Steele, Hoyt P., Benjamin Electric Mfg. Co., Des Plaines, 111.. Steele, J. C., & Sons (J. C. Steele, Jr.), Statesville, N. C. Steele, J. C., Jr., J. C. Steele & Sons, Statesville, N. C. Steele, Richard ., Ram, Inc., 1064 W. Fifth Ave., Columbus, Ohio Steele, William Perrin, Pine Hall Brick & Pipe Co., Winston- Salem, N. C. Steffen, Don W.t (J), 52 W. Eighth St., Lovell, Wyoming Stefl, Donald J., Freeport Brick Co., Freeport, Pa. Steil, Roy C\, 3450 Garfield St., Denver 5, Col. Stein, Colonel Alan, Millfield, Polmont, Stirling, Scotland Stein, Colin H., 7 Melville Terrace, Stirling, Scotland Stein, Ronald C., Messrs. John G. Stein & Co., Ltd., Bonny- bridge, Scotland Steinbock, E. A., Whip-Mix Corp., 411 W. Avery St., Louis ville 8, Ky. Steiner, Harry C., Industrial & Transmitting Tube Lab. Dept., General Electric Co./ Schenectady 5, N. Y. : ,, .. Steinhoff, Fred L.,*l Brick &' Clay Record-Ceramic Industry, 5 S. Wabash, Chicago 3, 111. Stelle, John A., Arketex Ceramic Corp., Brazil, Ind. Stenquist, Donald R. (S), Co. W NSCS, Naval Supply Depot, Bayonne, N. J. Stent, Howard B., Box 1587, Nairobi, Kenya Colony, East Africa Stephens, Dan E., North State Pyrophyllite Co., Pomona, N. C. Stephenson, Samuel R., Jr. (S), 13F University Ct. Apt., Tuscaloosa, Ala. Sterling China Co. (William T. Pomeroy), East Liverpool, Ohio Sterling Grinding Wheel Div., Cleveland Quarries Co., (A. E. Tulk), Tiffin, Ohio Sterling, Harry S., Corning Glass Works, Harrodsburg, Ky. Stern, George, American Electro Metal Corp., 320 Yonkers Ave., Yonkers 2, N. Y. Stern, Joseph, Stupakoff Ceramic & Mfg. Co., Hillsview Ave., Latrobe, Pa. Sterry, William M. (S), Ceramic Engineering Div., University of Washington, Seattle 5, Wash. Stetson, Alvin R,, Research Div., Solar Aircraft Co., 2200 Pacific Highway, San Diego 12, Calif. Stetson, Harold W. (S), Div. of Mineralogy, Pennsylvania State College, State College, Pa. Stetson, William C.,f Box 44, Saxonburg, Pa. Stettinius, K. E., Lapp Insulator Co., Inc., LeRoy, N. Y. Stettner, Donald H.,t 606 Elkins Ave., Philadelphia 20, Pa. Steubenville Pottery Co. (W. J. Mould), Steubenville, Ohio Steuernagle, J. H., Brockway Glass Co., Inc., 1047 Seventh Ave., Brockway, Pa. Stevens, Major Donald K., Research & Analysis Dept., The Arty School, Box 227 (AA&GM Be) Fort Bliss, Texas Stevens, Frank J.,t 414 Prospect St., Nutley 10, N. J. Stevens, Joe, Murray Refractories Co., Box 338, Murray, Utah Stevens, L. M., 2907 Alabama St., La Crescenta, Calif. Stevens, Robert P.,1 Wellsville Fire Brick Co., 1625 W. 104th Place, Chicago 43, 111. Stevens, W. B., Socony-Vacuum Oil Co., 26 Broadway, New York 4, N. Y. Stevenson, James K., Jr.,t R. R. 1, Mundelein, 111. Stevenson, Samuel, 1967 Grafton Rd., Elyria, Ohio Steventon, Horace, John Steventon & Sons, Ltd., Cledford Works, Middlewich, Cheshire, England Stewart, Alex, National Lead Co., Ill Broadway, New York 6, N. Y. Stewart, George C, Livingston Manor, N. Y. Stewart, Isaac, New York Testing Lab., Inc., 80 Washington St., New York 6, N. Y. Stewart, J. H., Stark Ceramics, Inc., Box 230, Canton, Ohio Stewart, John A., 419 Locust Ave., Washington, Pa. Stewart, Malcolm, 310 Irwin St., San Francisco 7, Calif. Stewart, Wilfred H., U. S. Reduction Co., Box 93, Sta. D. Toledo 8, Ohio Stief, W. C., 158 S. Wilson Blvd., Mt. Clemens, Mich. Stiefel, Maurice B. (J), National Bureau of Standards, Van Ness & Conn. Aves., Washington, D. C. Stillwater Clay Products Co. (J. P. Duffy), Lock Drawer 32, Uhrichsville, Ohio Stockdale, George F., 49 Corning Blvd., Corning, N. Y. Stockslager, Theodore F., Carborundum Co., 24800 Lakeland B'lvd., Cleveland 23, Ohio Stockstrom, Arthur, Magic Chef, Inc., 1641 S. Kingshighway, St. Louis 10, Mo. Stoddard, Stephen D.,t 3807 Gold St., Apt. 5, Los Alamos 1. N. M. Stoen, Roger C.,1 Cannelton Sewer Pipe Co., Cannelton, Ind. Stoffer, Ross, American Clay Forming Co., Tiffin, Ohio Roster 65 Stohl, Alfred A., North St., Sun Prairie, Wis. Stohl, L. A., Wisconsin Porcelain Co., Sun Prairie, Wis. Stolte, Norman H.,t 3974 Orchard Rd., Cleveland Heights 21, Ohio Stone, Benjamin, California Crafts, 43340 N. Gratiot, Mt. Clemens, Mich. Stone, Conrad A., 93 S. Remington Rd., Bexley, Columbus 9, Ohio Stone, C. P., Ferramic Industries, Ltd., 25 Hydeway, Welwyn Garden City, Herts, England Stone, F. R., Canada Firebrick Co., Ltd., 4741 St. Ambroise St., Montreal, Que., Canada Stone, Robert J., John W. Higman Co., 24 State St., New York 4, N. Y. -.Stone, Robert L.,*t Dept, of Ceramic Engr., University of Texas, Austin 12, Texas Stone, S. A., Deister Concentrator Co., 901 Glasgow Ave., Fort Wayne, Ind. 'Stong, Guy E., 926 W. Water St., Elmira, N. Y. Stookey Stanley D., 145 Pritchard Ave., Corning, N. Y. Stoops, Robert F.,t Carboloy Dept, of G. E. Co., Box 237, Roosevelt Park P. O., Detroit 32, Mich. Stotler, Chalmer P., 228 Winter St., Crooksville, Ohio Stott, A. E., Edward Johns & Co., Ltd., Armitage, Rugeley, Ig; . Stafford, England Stout, Byrl M., 1 Elm St., Port Allegany, Pa. Stout, Lester L., Ohio State University Research Foundation, Columbus 10, Ohio Stradley, James G. (S), R. R. 1, Newark, Ohio Stradley, Norman H.,t 367 Grove St., Minnesota Mining & Mfg. Co., St. Paul, Minn. Straight, Lee H., Iowa Clay Products Co., Centerville, Iowa Strain, R. E., Alliance Ware, Ltd., Box 550, Vancouver, B. C., Canada Stratton, Mrs. W. B., Pewabic Pottery, 10125 Jefferson Ave., Detroit 14, Mich. Strauss, Simon W., 3801 Connecticut Ave. N. W., Apt. 247, Washington, D. C. Streator Brick Co. (J. R. D. Stansfield), Streator, 111. Stringfellow, Allen E., 202-C Garfield Ave., Collingswood 7, . N. J. . Strod, Arvid J.,T Industrial Metals Improvement Co., The Park Bldg., Pittsburgh 22, Pa. Strong, Kenneth B., 4101 Hillsboro Circle, Nashville 12, Tenn. Strott, Adolf J., Kearfott Co., Inc., Ceramic Dept., Little Falls, N. J. Stroud, Harold L., 2909 Bembridge Rd., Royal Oak, Mich. Stroup, Philip T., Aluminum Co. of America, Box 772, New Kensington, Pa. Stroupe, Howard E., Jr.,t Wheeling Tile Co., Wheeling, W. Va. Structural Clay Products Institute (Harry C. Plummer), 1520 18th St. N.W., Washington 6, D. C. Struebing, Harold J., 1215 Military Rd.. Buffalo 17, N. Y. Stuart, Deraid A., Thurston Hall, Cornell University, Dept, of Engr. Mat., Ithaca, N. Y. Stubbs, John M. (J), 285 Kensington Place, Marion, Ohio Stuckey, Jasper L., University of North Carolina, Raleigh, N. C. Stull, John L. (S), Box 41, Alfred, N. Y. Stuntz, Robert P., Babcock & Wilcox Co., 105 S. LaSalle, Chicago 3, 111. Stupakoff Ceramic & Mfg. Co. (Semon H. Stupakoff), La- trobe, Pa. Stupakoff, Semon H., Stupakoff Ceramic & Mfg. Co., Latrobe, Pa. Stutz, George F. A., New Jersey Zinc Co., Library, Palmerton, Pa. Styer, Charles A., 11 Roxbury Rd., Forest Hills, Pittsburgh 21, Pa. Styhr', Karsten H. (J), 165 Rector St.. Perth Amboy, N. J. Sullivan, Eugene C.,* Corning Glass Works, Corning, N. Y. Sullivan, John D.,* Battelle Memorial Institute, 505 King Ave., Columbus 1, Ohio Sullivan, Joseph C., 24 Fulton St.. Corning N. Y. Sullivan, Paul A.t (J), 4 Suter Terrace, Rochester 20, N. Y. SUmerbank (Bulent Buktas), Ankara, Turkey Summers, E. W., Owens-Illinois Glass Co., General Engineer ing Dept., Alton, 111. Sumpter, Charles E., 6820 Magoun Ave., Hammond, Ind. Sumrell, Ferrall N., 707 Henry St., Uniondale, Hempstead, N. Y. Sun, K. H.,* 2131 Lindsay Rd., Pittsburgh 35, Pa. Sunray Stove Co., (J. P. McClintock). 155 S. Sandusky St., Delaware, Ohio Sur Enamel & Stamping Works, Ltd. (M. M. Sur), 9 Middle Rd., Entally, Calcutta, India Sur, M. M., Sur Enamel & Stamping Works, Ltd., 9 Middle Rd. Entally, Calcutta, India Suraiya, Va'ljee (S), 20 Theatre Rd., Calcutta 16, India Vol. .32, No. 10 (1953) Surface Combustion Corp. (Harvey C. Weller), 2375 Dorr St., Toledo 1, Ohio Surfleet, Harold, Kaylene Labs., Waterloo Rd., London N.W. 2, England Sutherland, Clark, Pacific Clay Products, 306 West Ave. 26, Los Angeles 31, Calif. Sutherland, Frank R.,t R.R, 6, Box 316-A, Kokomo, Ind. Sutphen, F. G., 2605 Central Ave., Middletown, Ohio Sutton, Willard H. (S), 311 E. Beaver Ave., State College, Pa. Sutton, W. J., Savoy-Homann Hotel, Bandoeng, Java, Indo nesia Svec, J. J.,t 3440 S. Euclid Ave., Berwyn, 111. Swain, Stephen M.,*+ 3403 Spangler Rd., Cleveland Heights 12, Ohio Swalm, Phaon H., Box 178, Kingston, Ont., Canada Swan, S. D., Sonotone Corp., Elmsford, N. Y. Swank, C. Ferguson, Box 630, Johnstown, Pa. Swearingen, Jack C., United Can & Glass Co., 131 B St., Hayward, Calif. Sweely, B. T.,*t Gate 12, Crystal Lake, 111. Sweitzer, Mark, 320 N. Euclid, Pasadena 4, Calif. Swenson, George W., Minnesota Mining & Mfg. Co., 900 Fauquier Ave., St. Paul 6, Minn. Swentzel, John P., 8960 Hennepin Ave., Niagara Falls, N. Y. Sweo, Benjamin J.,* Ferro Corp., 4150 E. 56th St., Cleveland 5, Ohio Swicker, Victor C.,* Alexander H. Kerr & Co., 3440 Wiltshire Blvd., Suite 816, Los Angeles, Calif. Swift, Howard R., Libbey-Owens-Ford Glass Co., 1701 E. Broadway, Toledo 5, Ohio Swigart, Joseph J., 1119 Emporia St., Pittsburgh 4, Pa. Swindell Brothers, Inc., Bayard & Russell Sts., Baltimore, Md. Swindell-Dressler Corp. (Philip Dressier), Box 1888, Pitts burgh 30, Pa. Swinnerton, Bertram B., 21 Second Ave., Tiffin, Ohio Swinnerton, George R., 35 E. State St., Alliance, Ohio Swope, Lorelle M. (S), 214 Howard Ave., Ames, Iowa Sylvania Electric Products, Inc. (B. S. Ellefson), 208-20 Willets Point Blvd., Bayside, Long Island, N. Y. Sylvester, George R.,t Sylvester & Co., Aurora Rd., Solon, Ohio Szymaszek, Jan W., 121 Muir Ave., Niagara Falls, Ont., Canada T Taeler, David (S), 215 Thompson St., New York 12, N. Y. Tailby, Roland V., 127 N. Sixth Ave., Highland Park, N. J. Takahashi, Kakuichiro,* Nippon Glass Co., Ltd., 5, Ginza 7-Chome, Chuo-Ku, Tokyo, Japan Talbot, Herbert W., Jr., National Lead Co., 1376 River Ave., Pittsburgh 12, Pa. Talwalkar, T. W., 8 Bagmati Rd., Jamshedpur, India Tanberg, Ragnar, Drammens Glassverk, Drammen, Norway Tao, Yung (S), Box 289, Alfred, N. Y. Tarnacki, Walter J.,t 8417-C Lochraven Blvd., Towson 4, Md. Tarney, Eugene G., 114 N. Lancaster St., Reynoldsburg, Ohio Tarnopol, Milton S., 943 Ninth Ave., Brackenridge, Pa. Tate, Frank E.,t Fort Scott Pottery Co., Fort Scott, Kan. Tatem, William A. (S), Box J-3, Alfred, N. Y. Tauber, John A.,t 3190 Mayflower Rd., Plymouth Meeting, Pa. Tayler, John B., Louisville Pottery Co., 228 E. Bloom, Louis ville 8, Ky. Taylor, Capt. A. L. (J), Headquarters AMC, Box 1794, Wright Field, Dayton, Ohio Taylor, Albert J., 106 Placer Lane, Oak Ridge, Tenn. Taylor, Charles D., 219 Corriher Ave., Salisbury, N. C. Taylor, Charles H., Jr.,I 500 Camden Ave., Apt. Bl, Moores- town, N. J. Taylor, Fran, Gay Fad Studio, Lancaster, Ohio Taylor, Howard U.,t 310 Dardis Ave., Menomonee Falls, Wis. Taylor, J. J., The Ohio Brass Co., Barberton, Ohio Taylor, }. J., 3342 Chapman St., Los Angeles 41, Calif. Taylor, Louis J., Laboratory Equipment Corp., Box 352, St. Joseph, Mich. Taylor, Nelson W.,* Fluorochemicals Dept., Minnesota Mining & Mfg. Co., 900 Fauquier Ave., St. Paul 6, Minn. Taylor, Robert B., Structural Clay Products, Research Founda tion, 20 N. Wacker- Dr., Chicago 6, 111. Taylor, Smith & Taylor Co. (Charles R. Landback), Chester, W. Va. Taylor, Thomas J., Sterner Mill Rd., R. R. 3, Langhome, Pa. Taylor, William C.,* Corning Glass Works, Corning, N. Y. Teague, A. D., Box 923, Augusta, Ga. Teague, Jo M., Jr.,t Quality & Specifications Dept., Owens- Illinois Glass Co., Box 1035-1036, Toledo, Ohio Teeter, John N., 1260 Cavell Ave., Highland Park, 111. Teetor, Paul,* Central Commercial Co., Northfield, 111. Tefft, Philip W.,t 4567 Olentangy River Rd., Columbus, Ohio Roster 67 I c. SHER committee let technical i. Supplier >1 )S ssues of THE mon to other Svli tracts 4,' Xcfft. Willard H., The Claycraft Co., Upper Sandusky, Ohio jegellaboratoriet (Brick Laboratory), (Christer Enberg), Exp. Sta. of the Royal Swedish Academy for Engineering Science, Drottning Kristinas vag 47, Stockholm O, Sweden Tennant, C. Sons & Co. of New York (William S. Deming, Jr.), 100 Park Ave., New York 17, N. Y. Temiery, Victor J. (S), Findlay, 111. Terman, Mark J., Babcock & Wilcox Co., 161 E. 42nd St., New York 17, N. Y. Terry, Griffin E., 602 E. Willow, Wheaton, 111. Tetrick, James D.,* 1102 E. Fourth St., Vinton, Iowa Thatcher Glass Mfg. Co. Inc. (Roy S. Arrandale), 1901 Grand Central Ave., Elmira, N. Y. Theobald, Erwin F., 1516 18th St. N. W., Canton 3, Ohio Thews, Karl B., 83-09 Talbot St., Kew Gardens, L. I., N. Y. Thielke, Norman R., The National Carbon Co., Box 6087, Cleveland, Ohio Thiemann, John W.,t 2550 N. 40th St., Milwaukee, Wis. Thiemecke, Harry W.,*+ Homer Laughlin China Co., Newell, W. Va. Thiess, L. E.,* Locke Dept., General Electric Co., Box 57, Baltimore 3, Md. .... Thomas, Charles A. G., E. J. & J. Pearson, Ltd., Firebrick Works, Stourbridge, England Thomas, Charles W. (Honorary), Clifton House, Old Swin- ford, Stourbridge, England Thomas, David W.,t Stangl Pottery, Trenton, N. J. Thomas, Everett A., 2703 Shaffer Ave., Cincinnati 11, Ohio Thomas, H. H., 1849 Edgewood Rd., Towson 4, Md. Thomas, Robert H., 238 Arlington Rd., Newton Falls, Ohio Thomasson, Gene I. (S), 708 W. California, Urbana, 111. Thompsen, 2nd Lt. Robert S. (S), W.A.D.C. Gen. Delivery, Area B, W.P.A.F.B., Dayton, Ohio Thompson, A. Paul,* Research Laboratories, The Eagle- Picher Co., Joplin, Mo. Thompson, Charles W., 216 Dell St., Johnstown, Pa. Thompson, Clyde L.,*t 4922 New Plymouth Rd., Pittsburgh 27, Pa. Thompson, Franklin S., 25 Schenck Ave., Matawan, N. J. Thompson, Frederick S., Corhart Refractories Co., Inc., 16th & Lee Sts., Louisville 10, Ky. Thompson, G. L., Borax & Chemicals Ltd., 229 High Holborn, London W. C. 1, England Thompson, John D., 2434 Evergreen Dr., Royal Oak, Mich. Thompson, M. W., Hall China Co., East Liverpool, Ohio Thompson, Noel M., 721 Shady Lane, Pittsburgh 34, Pa. Thompson, Thomas E., Box 252, Williams Bay, Wis. Thompson, William M., Jr.t (S), 801 Broadview Blvd., Dayton 9, Ohio Thomson, Homer G., 211 N. 88th St., Wauwatosa 13, Wis. Thomson, James K, 21 East Shore Dr., Massapequa, N. Y. Thor, Mumer E., 318 Parkhurst Blvd., Buffalo 23, N. Y. Thorley, J. Palin, Box 1143, Jamestown Rd., Williamsburg, Va. Thorngate, Bruce W., American Clay Forming Co., E. Duncan St., Tyler, Texas Thornton, George A., Ottawa Silica Co., Box 437, Ottawa, 111. Thornton, Paul E.,t 4603 Lasheart Dr., La Canada, Calif. Thornton, Richard (S), Box C C, Alfred, N. Y. Thrasher, William R., Model Ceramics, Inc., 772 N. Main, Akron 10, Ohio Thuener, Everett E., R. R. 6, Schenectady 3, N. Y. Thurnauer, Hans,*! 1811 Hixson Pike, Chattanooga 5, Tenn. Thut, Walter W., A. G. Hunziker & Cie, Lagerstrasse 1, Zurich, Switzerland Tibbals, Harvey L.,t 2374 Hilgard Ave., Berkeley 9, Calif. Tickle, William H. F., "Brown Stacks," Caldy, Near West Kirby, Cheshire, England Tiede, Ralph L., Owens-Corning Fiberglas Corp., Case Ave., Newark, Ohio Tillotson, Clifford, Tillotson Refractories Co., 1150 W. Sixth St., Corona, Calif. Tillotson, E. Ward,* Mellon Institute, 4400 Fifth Ave., Pitts burgh 13, Pa. Tinker, Dean, Granville, Ohio Tinklepaugh, James R.,+ Air Force Project, New York State College of Ceramics, Alfred, N. Y. Tipping, J., United Glass Bottle Mfgrs., Ltd., 8 Leicester St., London W. C. 2, England Titanium Alloy Mfg. Div., National Lead Co. (Arthur R. Rutkowski), Niagara Falls, N. Y. Titus, Henry B., North American Refractories Co., 50 Church St., New York 7, N. Y. Tocker, Edwin (S), 255 E. Fairmont St., State College, Pa. Todd, Edwin R., 2425 Vail Ave., Apt. 21-A, Charlotte, N. C. Todd, Henry, 1700 Lowell Ave., Niagara Falls, Ont., Canada Toler, Herbert R.t (J), R.R. 2, Box 544, West Chicago, 111. Tom, Elgin M., 4208 Marlaine Dr., Toledo 6, Ohio B ULLETIN I Vou 32, No. 10 (1953) Tomasek, A. J., Walsh Refractories Corp., 101 Ferry St., St. Louis 7, Mo. Tomkins, David E., 509 Norwood Ave.,,New Castle, Pa. Tool, Arthur Q.,* 7325 Carroll Ave., Takoma Park 12, Md. Tooley, F. V.,* 1008 S. Garfield Ave., Urbana, 111. Toomey, James E., Kaiser Industries, 1625 Eye St., N. W., Washington, D. C. Topping, John, United States Steel Co., Pittsburgh, Pa. Torgal, K. G., 85/1, Bhandar Galli, Belgaum, Bombay State, India Torno, Ralph F., 369 Front St., No. 1, Berea, Ohio Torok, Julius J., Westinghouse Electric Corp., Hoult Rd., Fairmont, W. Va. Tostevin, Edgar R., Jr. (J), 62 E. Market St., Bethlehem, Pa. Toulouse, Julian H., 1817 Potomac Dr., Toledo 7, Ohio Townsend, Leslie W., American Encaustic Tiling Co., Lansdale, Pa. Townsend, William O.t (S), Box 83, Gilboa, Ohio Trabert, Eoren A.,t 1024 Dodge St., Lake Geneva, Wis. Tredennick, William T.,' Refractory Specialties Co., 2200 Wash ington Ave., Philadelphia 46, Pa. Treischel, C. C.,*t R. T. Vanderbilt Co., 230 Park Ave., New York 17, N. Y. Trenton Potteries Co., Plant 1, 309 N. Clinton Ave., Box 141, Trenton, N. J. Treptow, Arnold W., Bell Telephone Labs., Murray Hill, N. J. Trevor, John F., Moira Rd,, Woodville, Burton-on-Trent, England Tribe, Harold G., Electricity Meter & Allied Industries, Ltd., Box 4, Waterloo, Sydney, Australia Trinidad Clay Products, Ltd. (Harold A. Eckel), 44, South Quay, Port of Spain, Trinidad, B. W. I. Trinklein, Robert L., Box 722, Santa Anna, Texas Tripp, Harlan P.,t 1966 Langham Rd., Columbus 12, Ohio Trompeter, Bernard J., Champion Spark Plug Co., 8525 Butler Ave., Detroit 11, Mich. Trostel, L. J.,*t General Refractories Co., Box 1673, Baltimore 3, Md. Trostel, Louis J., Jr.t (S), 1932 N. High St., Columbus 1, Ohio Trott, R. P., General Abrasive Co., Inc., Niagara Falls, N. Y. Troy, Lt. Henry N. (S), 02203096 S-2-65 AFABN, Div. Arty, 3d Armd Div., Fort Knox, Ky. Troy, Walter J., 888 Chili Ave., Rochester, N. Y. Tse, Shou-cheng (J), Box 445, Sta. A, East Liverpool, Ohio Tucker, Donald J., Murray Ave., Huntingdon Valley, Pa. Tucker, Edward E., Stebbins Engineering & Mfg. Co., Water- town, N. Y. Tucker, Harvey C.,t Ferro Corp., 4150 E. 56th St., Cleveland, Ohio Tucker, Roland E., The Trenton Potteries Co., Trenton, N. J. Tufnail, Howard R., Steel Company of Wales Ltd., Box 9, Port Talbot, Glam. England Tulk, A. E., Sterling Grinding Wheel Div., Cleveland Quarries Co., Tiffin, Ohio Tung, Chi Fang (S), 607 W. High St., Urbana, 111. Turbett, Paul E.,t 1127 Chickasaw Dr., Paris, Tenn. Turck, Raymond L., 906 N. Highland, Dearborn, Mich. Turk, Karl, Sr.* Pemco Corp., 5601 Eastern Ave., Baltimore 24, Md. Turk, Richard H.,*t Pemco Corp., 5601 Eastern Ave., Balti more 24, Md. Turnbull, Edward D., 500 Penn Ave., Scranton 3, Pa. Turnbull, John C., RCA-Victor Division, Radio Corp. of America, Lancaster, Pa. Turner, A. A., 153 Lake Ave., Metuchen, N. J. Turner, Donald, Messrs. Lodge Plugs, Ltd., Rugby, England Turner, Mort D., 1417 Addison St., Berkeley 2, Calif. Turner, P. P., Jr.,t c/o Thompson Products, Inc., 23555 Euclid Ave., Cleveland 17, Ohio Turner, W. E. S. (Honorary), 30 Whitworth Rd., Ranmoor, Sheffield 10, England Tu1t1t1l.e, George N., Benjamin Electric Mfg. Co., Des Plaines, Tuttle, Milton A., Box 981, Alfred, N. Y. Twells, Robert,*! Electric Auto-Lite Co., Spark Plug Div., Box 231, Fostoria, Ohio Twells, Robert GJ (J), 528 Isabella Ave., Lock 4, Pa. Twyfords, Ltd., Cliffe Vale Potteries, Stoke-on-Trent, Eng land Tygart Valley Glass Co. (E. A. Hinkins), Washington, Pa. Tyler, W. S., Co. (C. E. Jenks), 3615 Superior Ave. N.E., Cleveland 14, Ohio Tysinger, Ted W. (J), 403 S..Hargrave St., Lexington, N. C. IT U., Camilo Valencia (S), 104 E. 15th Ave., Columbus, Ohio Ueltz, H. F. G., 39 West St., Worcester, Mass. Roster 69 Ubrmann, Carl J.,* Imperial Glass Corp., Bellaire, Ohio (Jleman, Turrell, 109 Virginia Ave., Aspinwall, Pa. Ulrich, Robert J., American Radiator & Standard Sanitary Corp., -1541 S'r Seventh St.; Louisville 8, Ky. Union-Electrical Porcelain Works, Inc. (F. W. Van Orden), Box 762, Trenton 5, N. J. Union Francaise des Produits Refractaires (Louise Halm), \15 Rue de Milan, Paris 9", France hited Clay Mines Corp. (K. E. Ward), Oakland & Prospect Sts., Trenton 6, N. J. United Glass Bottle Mfgrs., Ltd. (J. Tipping), 8 Leicester St., London W. C. 2, England United States Gypsum Co. (C. M. Lambe), 300 W. Adams St., Chicago 6, 111. 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. (G. D. Agnew), Cambridge, Ohio Universal-Rundle Corp. (H. P. Wangelin), 3305 W. Forest Home Ave., Milwaukee 15, Wis. Unum, Robert L., 811 Wilmington Ave., New Castle, Pa. Updike, George G.,t 1613 Stonewood Rd., Baltimore 12, Md. Upton, Lee O., American Optical Co., Southbridge, Mass. Urban, Richard F., 820 E St., Sparrows Point 19, Md. Urban, Stephen F., 268 Hartford Ave., Kenmore 23, N. Y. Utah Fire Clay Co. (C. H. Myers), 1078 S. First West, Salt Lake City, Utah V Valdes, Thomas H., N. Crescent Dr., Kittanning, Pa. Valentine Fire Brick Co. (W. H. Peterson, Jr.), Woodbridge, N. J. Valentine, Peter C., 620 Market St., San Francisco 4, Calif. Valia, Bhayabhai H. (S), 4043 12th Ave. N. E., Seattle 5, Wash. Valyi, Ilsabe E., 20 S. Broadway, Yonkers 2, N. Y. Van Alsten, Roy,t 9410 Patton, Detroit 28, Mich. Van Cleave, A. A., 8100 McGroarty St., Sunland, Calif. Van Cott, Harrison C., R. R. 1. Horseheads, N. Y. Van Der Beck, Roland, Research & Development, Carborundum Co., Niagara Falls, N. Y. Vanderbilt, R. T., Co. (Ira E. Sproat), 230 Park Ave., New York 17, N. Y. .bdermade, Richard J., Apt. 204, 1425 McFarland Rd., Pitts burgh 16, Pa. Van Dreser, Merton L. (J), 447 N. Washington, New Braun fels, Texas Van Dyke, Orien W., Magnet Cove Barium Corp., Box 6504, Houston 5, Texas Van Gelderen, L. P., N. V. Ramie Union, Enschede. Holland Van Godtsenhoven, Rene, Director of S. A. Cerabel, Badour, Belgium Van Gordon, Donald V., Metal & Thermit Corp., Carteret Plant, Carteret, N. J. Van Horn, Harry T., 741 Floral Park Rd., Franklin Square, N. Y. Van Houten, Louis A. (J), 2029 E. Elm, Davenport, Iowa Van Houten, Robert M., Fusite Corp., .6000 Fernview, Cincin nati 13, Ohio Vanick, James S., International Nickel Co., Inc., 67 Wall St., New^ York 5, N. Y. Van Nieuwenburg, C. J., Laboratorium voor Microanalyse, De Vries van Heyst Plein No. 2, Delft, Netherlands Van Orden, F. W., Union Electrical Porcelain Works, Inc., Box 762, Trenton 5, N. J. Van Schoick, Emily C.,* New York State College of Ceram ics, Alfred, N. Y. Van Schoik, Dickson M.,t 526 N. Washington, Royal Oak, Mich. Van Tassel, R. H., 527 Green Tree Rd.,- Kohler, Wis. Van Vlack, Lawrence H., Dept, of Chem. & Metal. Engineering, University of Michigan, Ann Arbor, Mich. Van Wiggeren,. Charles G., American Emery Wheel, Richmond Square, Providence 1, R. I. Van Zee, Arthur F., 3430 Inverness Ave., Toledo 7, Ohio Varga, Eugene L., O. W. Ketcham, Box 57, Crum Lynne, Pa. Vasilos, Thomas (S), Rm. 607B Grad. House, Massachusetts Institute of Technology, Cambridge 39, Mass. Vaughan, T. Carter,t Libbey-Owens-Ford Glass Co., Box ^278, Charleston 4, W. Va. khan, W. Harry,*' Atlanta Industrial Laboratories, 746 eKalb Ave. N.E., Atlanta, Ga. Veale, Jack H., 80 W. Willow St., Coal City, 111. Veiga, Roberto A. (S), Box 62, Alfred, N. Y. Venable, Charles R., Jr.,I 1660 S. Oak, Bartlesville, Okla. 70 Roster Venable, Joe G., Chattanooga Glass Co., Chattanooga in Tenn. ' Vera, Francisco,! Privada America 1364, Monterrey, N. L Mexico '' Veres, Frankt (J), 59 Bridge St., Seneca Falls, N. Y. Verzocchi, Enrico, Refrattari Verzocchi, Via Telesio 5 Milano, Italy ' Vesuvius Crucible Co. (Francis L. Arensberg), Box 827s Swissvale,Pittsburgh 18, Pa. ' Victor Insulators, Inc. (H. Failmezger), Victor, N. Y. Vidriera Monterrey, S. A. (Alfonso F. Rodriguez), Apartado 162, Monterrey N. L., Mexico Viger, Burnett C., 130 E. Third St., Corning, N. Y. Vilensky, Michel B., 1515 27th Ave., San Francisco 22, Calif. Vinal, Francis E., 330 Whittemore Bldg,. Massachusetts In., stitute of Technology, Cambridge 39, Mass. Vincent, George L.,t 10 Farrington Ra, Oceanside, N. Y. Vinther, E. Heikel, Porcelainfabriken Norden, Valby Lang. gade 95, Copenhagen, Denmark Vitolo, Sylvester A.,t 23-34 25th St., Astoria, Long Island, N. Y Vitreous Steel Products Co. (Edgar H. Weil), Box 179r* Cleveland 5, Ohio Vitro Mfg. Co. (Theodore Lenchner), 60 Greenway Dr., Pitts burgh 4, Pa. Vodicka, Albert L., Aetna Porcelain Enameling Co., 4701 Augusta Blvd., Chicago 51, 111. Vogl, Thomas P. (J), Westinghouse Research Labs., Nuclear Physics & Electronics Div., East Pittsburgh, Pa. Vogt, Harold G., Corning Glass Works, Corning, N. Y. Von Tury, Francis J., Lehigh Ave., Perth Amboy, N. J. Voorhies, John H., 243 Arrow Highway, Claremont, Calif. Vose, Wilfred, New Zealand Pottery & Ceramic Research Assn., Private Bag, Lower Hutt, New Zealand Voss, Marion J., Box 761, Alfred, N. Y. Voss, Raymond O., Corning Glass Works, Box 544, Corning, N. Y. Voss, Walter C., Massachusetts Institute of Technology, Rm. 7-221, Cambridge 39, Mass. Vretos, Epaminondas, Heteria Lirasmaton, Institute of Chem-. istry & Agriculture, "N. Canello Poulos" of the Hellenic Co., Orapetsona, Piraeus, Greece Vukovich, Milan, Jr.t (J), 225 Santa Maria Lane, Columbus: 13, Ohio W Waggoner, Jack H., 240 Quentin Rd., N., Newark, Ohio Wagner, Bruce F., 186 N. Vernon Ave., Pasadena 3, Calif. Wagner, Harry E., Battelle Memorial Institute, 505 King Ave^' Columbus, Ohio Wagner, Rio B., 1398 Brice Rd., Reynoldsburg, Ohio Wahl, Albert J., A. J. Wahl, Inc., 8 Central Ave., Brocton,: N. Y. Wahlgren, Wald., A. B. Gustavsbergs Fabriker, Gustavsberg, Sweden Wainer, Eugene, Horizons, Inc., 2891 E. 79th St., Cleveland, Ohio Waite, Virgil H., 433 Beech St., Berea, Ohio Wakefield, Richard E. B., Shallcross Mfg. Co., Collingdale, Pa. Walden, Albert S., National Carbon Co., Cleveland, Ohio Walker, A. M., Australian Tesselated Tile Co., Mitcham, Vic toria, Australia Walker, Eugene E., 220 W. Sheridan Ave., New Castle, Pa- Walker, Henry E., Harding Glass Co., Fort Smith, Ark. Walker, Herbert M., Walker China Co., Solon Rd., Bedford, Ohio Walker, John, Morgan Crucible Co., Ltd., Battersea Church Rd., London S. W. 11, England Walker, Prescott H., Carborundum Co., Niagara Falls, N. Y. Walker, Warren W., 1050 Nepperhan Ave., Yonkers, N. Y. Walkup, D. H., Kilgore Ceramics Corp., Box 1619, Kilgore. Texas r i ; W.Vj:- . Walla, Max R., Box 1369, Little Rock, Ark. Wallace, Arthur, 714 Battery Place, Chattanooga 3, Tenn._ Wallace, Curtis C,, Electric Storage Battery Co., Box 5723, Philadelphia 20, Pa. Wallace, Paul F. (J), 76 Ward Park Rd., Grand Island, N.' Wallace, William W., 415 Centennial St., New Castle, Pa- Walsh, Donald E., Consolidated Feldspar Dept., Internationa) Minerals & Chemical Corp., East Liverpool, Ohio Walsh Refractories Corp. (A. J. Tomasek), 101 Ferry SL St. Louis 7, Mo. Walton, Jesse D., Jr., 4835 Durden Dr., Apt. 3, Chamblee. Ga- Walton, S. F.,*t Exolon Co., Tonawanda, N. Y. Walworth, Chester A., Libbey-Owens-Ford Glass Co., Bo* 4278, Charleston 4, W. Va. Wambold, Jack, Apt. 203C Faller Dr., New Milford, N. J- Ceramic Bulletin ooga 1.0, | '< N. L., u'aiupler, Roy W., Libbey-Owens-Ford Glass Co., Technical Bldg., 1701 E. Broadway, Toledo 5, Ohio y/angelin, H. P., Universal-Rundle Corp., 3305 W. Forest Home Ave., Milwaukee 15, Wis. elesio s, u'anner, Edwin F., Box 141, R.R. 3, Bellevue, Pittsburgh 2, Pa. Clifford D., 74 S. San Gabriel Blvd., Pasadena 10, Sox 8275, , N. Jg Apartado ;|j 22, Calif, usctts In Calif. W'ard, George W., Gustin-Bacon Mfg. Co., 210 W. Tenth St., Kansas City, Mo. W'ard, John F., Johns-Manville_, 22 E. 40th St., New York, N. Y. VVard, K- E., United Clay Mines Corp., Oakland & Prospect Sts., Trenton 6, N. J. W'ard, Mrs. S. Paul, 601 Mission St., South Pasadena, Calif. W'arde, John M., 22 Outer Dr., Oak Ridge, Tenn. jj.yyarfield, Robert A., 2460 E. Livingston Ave., Columbus 9, . N. Y/ASJ by Lang- %: Ohio \Varren, George,! Pfaudler Co., Research Lab., 1000 West Ave., Rochester 3, N. Y. md, N..4 Box 179 . Warriner, Lendall P., c/o Cyprus Mines Corp., 161 E. 42nd St., fjjpNew York 17, ,N. Y. fWaryga, Casimer F., 342 E. Ashdale, Philadelphia 20, Pa. Dr., Pitts- If ] Co., 470lJ Washburn, Lucius H., Box 242, Alfred, N. Y. Washington Brick Co. (John R. Clark, Jr.), Muirkirk, Md. Washington Porcelain Co. (C. H. Ackerson), Willow St., Washington, N. J. ., Nude - Wasmann, Russell K., Laclede-Christy Co,, 391 Sutter, San " Francisco, Calif. Waters, Martin R., 28 Sweetbriar Lane, Levittown, Pa. Watkin, Robert W., 2507 St. Clair Ave., East Liverpool, Ohio Watkins, Charles (S), Box J-3, Alfred, N. Y. Watkins, George B., Libbey-Owens-Ford Glass Co., 1701 E. - Broadway, Toledo, Ohio , Corning,! Watkins, Ray T., U. S. Tariff Commission, Ceramic Div., Washington, D. C. Watkins, S. J., 828 S. Garfield, Hinsdale, 111. )logy, Rm.i of Chem-1 ellenic Co.,1 Watkins, W. J., Kentucky Clay Mining Co., Mayfield, Ky. Watkins, William E.f (S), Allied Engineering Co., 4156 E. 56th St., Cleveland, Ohio Watson, George F., American Brake Shoe Co., Metallurgical Lab., Mahwah, N. J. Columbus Watson. James M. (J), 700 First Ave., Farmville, Va. Watt, Charles (S), 4731 21st, N. E,, Seattle 5, Wash. Watt, Loren, Watt Pottery Co., Crooksville, Ohio Watt Pottery Co. (Loren Watt), Crooksville, Ohio Watts, Arthur P., A C Spark Plug Div., General Motors Corp., Dept. 3103. Flint, Mich. Watts, Arthur S.*t (Honorary), Lord Hall, Ohio State' University, Columbus 10, Ohio Weaton. Ralph L., St. Joseph Lead Co. of Pennsylvania, Zinc Smelting Div., Monaca, Pa. ;., Broctong Weaver. Harold L,, 303 Chesnut St., Port Allegany, Pa. Weaver, R. A.,* Ferro Corp., 4150 E. 56th St., Cleveland 5, Ohio ustavsbergj Cleveland,K % |lollingdale.ii d, Ohio a cham, Vic-J Castle, Pa-|.' h, Ark. ii, Bedford,^ sea Church i- Webber, John J.. 495 Moull St., Newark, Ohio Weber, Berthold C., 3833 Saranac Dr., Dayton 9, Ohio Weber, Don A., Deister Concentrator Co., 901 Glasgow Ave., Fort Wayne, Ind. Weber, Kenneth E., 2742 Bennett Ave., Evanston, 111. Webster, Charles E.,t 311 E. Beaver St., Zelienople, Pa. Webster, David, Development Dept., West Virginia Pulp & Paper Co., Charleston, S. C. Webster, Paul A.. Moravia Rd., Avon, Conn. Weddell, George G., Geotic Industries, Inc., 515 S. Main St., Pittsburgh 20, Pa. Wehtje, Ernst J., Box 269, Malmo 1, Sweden Wehtie, Karl Fredrik, A/B Rorstrands Porslinsfabriker, Lid- koping, Sweden Weidel, Robert A., 497 Apple Orchard Lane, Webster, N. J. Weidenbaum. Sherman S., 18 Meadow Brook Apts., Corning, N. Y. ralls, N. Y. s. N. Y. f 19, KilgoreA . i enn. ,, Box 5723, dand. N. y|| astle, Pa. i nternationalj Weidman. V. Weslev. 201 Duncan Ave., Wilmington 3, Del. Weigel, Robert C., 820 Woodlawn, Mexico, Mo. Weil, Edgar H., Vitreous Steel Products Co., Box 1791, Cleveland 5, Ohio Weil, Kurt E., Cristais Prado Ltda., Caixa Postal 10.001, Sao Paulo, Brazil Weiner, George H., Deena Products Co., 825 S. Wabash Ave.. Chicag0| 111. Weinfurtner, E. M., North American Refractories Co., Na tional City Bank Bldg., Cleveland 14, Ohio Weinstein, Alex, 200 N. Water St., Peekskill, N. Y. Weintritt, Donald J. (J), 6816 Beechwood St., Houston 21, Texas Weise, Robert L., 2017s E. Second St., Logan, Ohio Reiser, Rosabel V., 253 S. Brady St., DuBois, Pa. 'Yeiske, Ino, Box 353, Mission, Texas Weiss, E. Joseph,! Dept, of Ceramic Eng., University of Texas, Austin, Texas rd, N. I. i t Bulletin? i Weiss, W. Russell, Wellsville, Mo. VOL. 32, No. 10 (1953) Weissmann, Theodore S., 298 Red Maple Dr., S., Levittown, N. Y. Weisz, Robert S., RCA Laboratories, Princeton, N. J. Welch, A. Philip,t 912 Grand Ave., Ames, Iowa Welch, Richard L., Dominion Firebrick & Clay Products, Ltd., Claybank, Sask., Canada Weldon, Walter A.,* 621 Edgewood St., Baltimore 29, Md. Weller, Harvey C., Surface Combustion Corp., 2375 Dorr St., Toledo 1, Ohio Welling, Charles E., Ford Motor Co., Scientific Lab. Engr. Staff, .Box 2053, M B Station, Dearborn, Mich. Wells, A. A.,* Homer Laughlin China Co, Newell, W. Va. Wells, J. M., Homer Laughlin China Co., Newell, W. Va. Wells, Ralph G., United States Steel Corp., 234 Atwood St., Pittsburgh 13, Pa. Welsch, William W.,' Box 12, Granville, Ohio Welshans, L. T., Diamond Alkali Co., Painesville, Ohio Welterlen, James D. (J), 4630 Zane St., Los Angeles 32, Calif. Wenczel, C., Wenczel Tile Co., Box 908, Trenton, N. J. Wenczel Tile Co. (C. Wenczel) Box 908, Trenton, N. J. Wendt, Nelson E., American Potash & Chemical Corp., 122 E. 42nd St., New York 17, N. Y. Wenger, A. H. C., Messrs. Wengers, Ltd., Etruria, Stoke-on- Trent, England Wenning, W. F., Ceramic Color & Chemical Mfg. Co., Box 297, New Brighton, Pa. Werner, Alan J., 159 Watauga Ave., Corning, N. Y. West, Frank, Haslemere Greenlane, Buxton, Derby, England West, Howard F., 1400 Caton Ave., Joliet, 111. Westbrook, J. H., General Electric Co., Room 327, Research Lab., The Knolls, Schnectady, N. Y. Western Brick Co. (I. R. Cline), Danville. 111. Western Clay Manufacturing Co. (A. C. Bray), Box 176, Helena, Mont. Western Electric Co., Inc. (J. W. Scott), 7640 Hawthorne Station, Chicago 23, 111. Western Electric Co. (E. E. Blankenstein), 2525 Shadeland Ave., Indianapolis, Ind. Western Feldspar Milling Co. (J. W. Magnuson), Box 671 Salida, Col. Westfall, Emmett M. (S), Box 126, Alfred, N. Y. Westinghouse Electric Corp. (John D. Harnish, Jr.), Derry, Pa. Westman, A. E. R.,* Dept, of Chemistrv, Ontario Research Fdn., 43 Queen's Park, Toronto 5, Ont., Canada Westmont, O. B., Johns-Manvilie Products Corp., Lompoc, Calif. Weston, Ralph H.,t Arketex Ceramic Corp., Brazil, Ind. West Virginia Brick Co. (Claude F. Wiseman), Charleston, W. Va. Weyl, Woldemar A.,* Dept, of Mineral Technology, Penn-,. sylvania State College, State College, Pa. Wheaton, Laur Don, T. C. Wheaton Co., Millville. N. J. Wheeler, D. D., Titanium Alloy Mfg. Co., Ill Broadway, New York, N. Y. Wheeler, William H.,+ R.R. 1, Surry, Va. Wheeling Steel Corp. (Ernest B. Snyder), Steubenville South Plant. Steubenville, Ohio Wherry, Allen P.,t 9652 Oakdale Rd., Parma 29, Ohio Whicher, William C. (S), 224 Ash. Ames, Iowa Whitacre. D. D., Whitacre-Greer Fireproofing Co., Waynesburg, Ohio Whitacre-Greer Fireproofing Co. (D. D. Whitacre), Waynesburg, Ohio Whitacre, Maxwell L., The Carborundum Co., Buffalo Ave., Niagara Falls. N. Y. Whitaker. Fred A.,t 64 Linden Ave.. Metuchen, N. J. Whitaker, H., Rustless Iron Co., Ltd.. Trico Works, Keighley, England Whitaker, L. R.,*t Carolina Ceramics, Inc., R. R. 3, Columbia, S. C. White. Frank L,, 15117 E. Vernor Highway, Apt. 11, Grosse Pointe Park 30, Mich. White, George D., Box 474, Norris, Tenn. White, Harold E.,*t R. R. 6. "Windy Knoll," Butler, Pa. White, J. F., 9208 Adelaide Rd., Bethesda 14, Md. White, Jonathan S., 1302 Singer Place, Wilkinsburg, Pitts burgh 21, Pa. White, Theodore G., 19 Scenery Rd., Pittsburgh 21, Pa. Whitehead, Merlin H., Federal Enameling & Stamping Co., McKees Rocks, Pa. Whitesell, I.ysle E., Wellsville. Mo. Whitfield, Robert E., Charles Taylor Sons Co., Box 58, Annex Sta., Cincinnati 14, Ohio Whitford, William G.,* Box 38, Olympia Fields, 111. Whitney, Eugene H., Gladding, McBean & Co.. 1500 First Ave.. S,, Seattle, Wash. Whitney, John B., 17426 Norton Ave., Lakewood 7, Ohio Roster 71 / .ioi' iie s of irs!) don :hey cess the let ing. ittle .I [ bey- m 4W? p- \ <W. ) ron press j* 4 I . . . c/e /War! ) Whittaker, Clyde M., Box 960, New Castle, Pa. Whittaker, G. Ward, 105 Sheraton Dr., San Antonio, Texas Whittaker, Harry, American Rock Wool Corp., South Plain- field, N. J. Whittemore, J. W.,*t Virginia Polytechnic Institute, Blacksburg, V a. Whittemore, O. J., Vincent Clay Products Co., Box 603, Fort Dodge, Iowa Whittemore, 0. J., Jr.,t Norton Co., Worcester 6, Mass. Whittemore, Russell G., Pittsburgh Plate Glass Co., 420 Ft. Duqucsne Blvd., Pittsburgh 22, Pa. Whitwood, Robert, 25 Hurd St., Cazenovia, N. Y. Wicks, John S., 333 New Lenox Rd., Pittsfield,_ Mass. Widemann,, R. V., Institut de Ceramique Frangaise, 6 Grande Rue, Sevresj.Seine* et Oisej-France. . " ' . : : . :A Wiker, Richard M., 206 Rand Ave., Painted Post, N. Y. Wilansky, Harold, 190 Decatur St., Corning, N. Y. Wilcox, Herman G., 800 Ross Ave., Pittsburgh 21, Pa. ^Wilcox, James W.,. Alliance Clay Product Co., Alliance,. Ohio Wild, William A. Pi, Albion'Clay Co.,' Ltd.; Woodville, Nr-. Burton-on-Trent, England Wilder, David R. (J), 1212 S. Third St., Ames, Iowa Wilhelm, William J. (S), 318 Centre St., East Mauch Chunk, Pa. Wilke, William P., Ill, Hammond Lead Products, Inc., 5231 Hammond Ave., Box 912, Hammond, Ind. Wilkes, Gordon B.,* Massachusetts Institute of Technology, Cambridge 39, Mass. Wilkins, E. D., Kaiser Aluminum & Chemical Corp., Permanente, Calif. Wilkins, Ian Hugh (J), 27 Prince Charles Dr., Substation 1, Oakville, Ont., Canada Willems, H. W. V., 1513 Pacific Ave., Brackenridge, Pa. Williammee, G. Darby, R.R. 6, York, Pa. Williams, Alan B.,t 920 Monte Sano Ave., Augusta, Ga. Williams, Arthur E,, 1214 Eighth St., Moundsville, W. Va. Williams, Charles (S), Box 716 Alfred, N. Y. Williams, Clyde,* Battelle Memorial Institute, 505 King Ave., Columbus 1, Ohio Williams, Francis J., Baroid Sales Div., National Lead Co., Box 1675, Houston 1, Texas Williams, Gordon R., Box 186, Florence, Ala. Williams, Harry M., Locke Inc., Charles & Cromwell St., Baltimore, Md. Williams, John A., Box 250, Trenton 2, N. J. Williams, John C., Franklin Manor, Apt. 3-J 2, Morris town, N. J. Williams, Leroy L., Jr. (J), 127 Fir, Park Forest, 111. Williams, Lloyd D., Corning Glass Works, Danville, Ky. Williams, Robert A., Jr., American Encaustic Tiling Co., Inc., Ninth St. & Kenilworth Ave., Lansdale, Pa. Williams, Robert B., 1107 Westwood Ave., Chattanooga, Tenn. Williams, Robert M. (J), 5809 Royal Oak Ave., Baltimore 7, Md. Williams, Walter E.,t New Castle Refractories Co., New Castle, Pa. Willis, James B., 1355 Crofton Rd., Baltimore 12, Md. Willmore, Tracy A., 1118 W. Illinois St., Urbana, 111. Willms, Albert E., 476 Parker Ave., Hackensack, N. J. Wills, Robert E., Box 220, Coal City, 111. Willson Products, Inc. (Thomas A. Willson), Box 622, Read ing, Pa. Willson, Thomas A., Willson Products, Inc., Box 622, Read ing, Pa. Wilson, Calvin S., Libbey Glass Div., Owens-Illinois Glass Co., Toledo 1, Ohio Wilson, Charles L., 217 N. Meridian St., Brazil, Ind. Wilson, George, 131 Edison Ave., New Castle, Pa. Wilson, Hugh H. (S), Engineering Experiment Station, Ohio State University, Columbus 10, Ohio Wilson, John R. (S), Pi Kappa Alpha, State College, Pa. Wilson, Maurice S., Spring Lake Rd., Wallingford, Conn. Wilson, Ray H. (S), Shaw AF Base, Box 106, Sumter, S. C. Wilson, Robert C. (J), Glendale Manor Apts., Apt. 4A, Pleas- antville, N. J. Wilson, Roger E. (S), Box 958, Alfred, N. Y. Winand, William T., Universal Major Electric Appliances Div., Inc., Box 928, Baltimore 3, Md. Winburn, H. L., Box 1369, Little Rock, Ark. Winchell, Richard, Seaboard Refractories Co., Box 151, Perth Amboy, N. J. Windisch, Robert P., Roseville Pottery, Inc., Zanesville, Ohio Winemiller, William F., 11 Ardmore Rd., Worcester 9, Mass. Winkel, M. Lee, Champion Brick Co., 7600 Pulaski Highway, Baltimore 6, Md. Winship, Lee C. (J), R. R. 2, Emporium, Pa. Winship, William W., Winship Silica Products Co., Freeport, N. Y. Vol. 32, No. 10 (1953) Winship, William W., Jr., Thermal Syndicate, Ltd., Lvnbrook, N. Y. Winter, Aniuta, Institut d'Optique Theorique et Appliquee, 3, Bid. Pasteur, Paris (15), France Winter, William E. (J), 2370 Bensonia Ave., Pittsburgh 16, Pa. Winthrop, Robert C., 2012 K St. N.W., Washington 6, D. C. Wisconsin Porcelain Co. (L. A. Stohl), Sun Prairie, Wis. Wise, L. G., E. I. du Pont de Nemours & Co., Chemical Dept., ' Expt. Sta., Wilmington, Del. Wiseman, Claude F., West Virginia Brick Co., Charleston, W. Va. Wishoski, I. Stanley, Industrial Heating, 1400 Union Trust Bldg., Pittsburgh 19, Pa. Wisnvi, Leonard G. (S), 14 Simplex Ave., New Brunswick, ^N. Wiss, J. E.,*t 1339 Lincoln Rd., Columbus 12, Ohio Witmer, Frank, 612 W. Main St., Woodville, Ohio Witschey, Ray A., A. P. Green Fire Brick Co., 122 S. Michi gan Ave., Chicago 3, I1L . Witter, "Raymond" B:,; Ajpto!" 4092 Correo' 'del Estef Chacaito- ( arur*JiQ Witucki, Robert M,, 832 W. Foster Ave., State College, Pa. Witzemann, A. W., 207 Franklin Ave., Kittanning, Pa. Womeldorph, R. C., Riverview Dr., Newark, Ohio Wood, Clifton E,, 93 Elm St., South Dartmouth. Mass. Wood, Kenneth 0., 3900 E. California St., Pasadena 10, Calif. Wood, Kenneth T., 102 Grace Blvd., Painted Post, N. Y. Wood, Lewis C., 1219 E. Fourth S., Salt Lake City 2, Utah Wood, Llewellyn. Jr., Carrington Woods, Milledgeville, Ga. Wood, Russell K.t (J), 3900 E. California St., Pasadena 10, Calif. Woodruff, Ernest W., 910 Custer Ave., Evanston, 111. Woods, C. J., North American Philips Co., Inc., Res. & Control Inst. Div., 750 S. Fulton Ave., Mt. Vernon, N. Y. Woods, William J., Pennslyvania Pulverizing Co., Box 587, Lewistown, Pa. Woods, William J., Jr., Pennsylvania Pulverizing Co., 140 Stanwix St., Gateway Center, Pittsburgh 22, Pa. Woodville Lime Products Co. (J. Robert Cowell, Jr.), 2140 Jefferson Ave., Toledo 2, Ohio Woodward, Rogerf (J), 861 Euclid Ave., Elmira, N. Y. Woodward, Thomas R., 2558 Oakwood Ave., Zanesville, Ohio Wooldridge, Morris L., 7531 S. Perry Ave., Chicago 20, 111. Wooley, Seward E.,t 6 Westbury Bldg., 66 E. Cliff St., Somer ville, N. J. Worcester Royal Porcelain Co., Ltd. (Joseph F. Gimson), Royal Porcelain Works. Worcester, England Worcester, W. G.,*t 720 Sask. Crescent E., Saskatoon, Sask., Canada Work, Lincoln T., 15 Ni Crescent, Manlewood, N. J. Worthington Corp. (Herbert E. Gallison), Industrial Mixer Div., Plainfield. N. J. Wortley, G. W., R. & A. Main, Ltd., Gothic Works, Falkirk, Scotland Wright, Edward P..t Box 387. East Liverpool, Ohio Wright, Harold D. (S), 1223 Bigley Ave., Charleston, W. Va. Wright, J. E., Messrs. A. G. Hacknev & Co., Ltd., Fairfield Pottery, Hanley. Stoke-on-Trent. England Wright, J. W.,t 1129 Warren St., Alton, 111. Wyatt, Bradley W., Pacific Clay Products, Box 1038, Los Nietos, Calif. Wvckoff, W. R., Joseph Dixon Crucible Co., 167 Wayne St., Jersey City, N. T. Wygant, Tames F., Standard Oil Co. (Indiana), Engr. Res. Dept., 2400 New York Ave.. Whiting. Ind. Wvsor, D. C., General Chemical Div., 40 Rector St., New York 6, N. Y. Y Yamaguchi, Mitsuo, 72 Oakwood Ave., Arlington, N. J. Yamamoto, Hideo, 305 W. 89th St.. New York 24, N. Y. Yamasaki,_ Kazuo, Chemical Institute Science Faculty, Nagoya University, Chikusa, Nagoya, Japan Yarte, Andrew A., Apartado 486, Monterrey, N. L., Mexico Yavorskv, Paul J., McDanel Refractory Porcelain Co., Beaver Falls, Pa. Yawitz, Murray, Fish-Schurman Corp., 70 Portman Rd., New Rochelle, N. Y. Yeater, Roy G., Fostoria Glass Co., Moundsville, W. Va. Yoshiki, Bumpei, Asahi Glass Co., No. 1 Benten-cho Tsuru mi-Ku. Yokohama, Japan Young, David A., Cloud Ceramics, Concordia, Kansas Young, James, John G. Stein & Co., Ltd., Manuel Works, Linlithgow, Scotland Young, James E., Armour Research Foundation, 3417 Federal, Chicago 16, 111. Young, John C.t (S), 720 S. Clark St., Mexico, Mo. Roster 73 Young, John C., Portuguese Bend Club, Palos Verdes Estates, Calif. Young, Lloyd G., Corning Glass Works, Main Plant, Glass Tech., Corning, N.. Y. Young, Robert J., Chicago Hardware Foundry Co., North Chi cago, 111. Young, Robert W., Box 355, Southbridge, Mass. Young, Stanley H.,t Cleveland Quarries Co., Amherst, Ohio Young, Vincent M., Bausch & Lomb Optical Co., Rochester 4, N. Y. Young, Willard G.,t W. A. Case & Son Mfg. Co., Robinson, in. Young, William 0.,t Box 575, Honeoye Falls, N. Y. Youngblood, Charles J., Jr., Mississippi Glass Co., 88 Angelica St., St, Louis 7, Mo. Yount, Richard V., Knox, Pa. Yutzey, Marvin G., Fostoria Glass Co., Moundsville, W. Va. Zahn, William A., 10 Church St., Matawan, N. J. Zanowiak, Peter P., R. R. 2, Box 286, Mineral Wells, Texas Zapfe, Richard C., 162 Penfield St., Pomona, Calif. Zapffe, Carl A., 6410 Murray Hill Rd., Baltimore 12, Md. Zarbo, George, 2638 Latonia Blvd., Toledo 6, Ohio Zavis, Lewis, 11012 S. Chanera, Inglewood 2, Calif. Zawistowski, Arthur V.t (J), 904 Ohio Ave., Trenton 8, N. J. Zeiller, Irwin F., 150 Mason Drive, Flower Hill, Manhasset, Long Island, N. Y. Zerfoss, Samuel,* Crystal Branch, Naval Research Lab., Wash ington 20, D. C. Ziegfeld, Robert L., Lead Industries Assn., 420 Lexington Ave., New York 17, N. Y. Ziegler, Byron J., American Optical Co., Southbridge, Mass. Zimar, Frank, Corning Glass Works, Main Lab., Corning, N. Y. Zimmer, David C.J 223 Chelsea St., Sistersville, W. Va. Zimmerman, William F., 4211 Allendorf Dr., Apt. 39, Cincin nati 9, Ohio Zink, George H.,t A. O. Smith Corp., 3535 N. 27th, Milwaukee, _Wis. Zink, Harold F., Owens-Illinois Glass Co., 1700 N. Westwood ; Ave., Toledo 1, Ohio Zlotnick, Herbert (S), Box 1-9, Alfred, N. Y. Zneimer, Joel E.t (J), 97 Chester Circle, Raritan Garden, New Brunswick, N. J. Zollman, James A. (J), 1221 Penrod Ave. S. E., Roanoke, Va. Zudnak, Stephen J., Box 1599, Trenton, N. J. Zumwalt, Donald A., 13818 Woodworth Ave., E. Cleveland 12, Ohio Zvanut, Albert J.,t Lincoln Electric Co., 22801 St. Clair Ave., Box 3115, Cleveland, Ohio Zvanut, Frank J.,t 14533 Bayes Ave., Lakewood, Ohio Zwermann, Carl H.,*t 806 W. Main St., Robinson, 111. Zwetsch, Artur, Villeroy & Boch, Mettlach/Saar, Germany Addenda Barta, Rudolf, The University for the Chemical" Silicates, Technicka Ave., 5, Prague XIX, Czechoslovakia Couri, Richard A., Box 109, South Woodstock, Conn. Douglas, Edward A. (J), 216 Fall St., Seneca Falls, N. Y. Fesler, Ray T., The A.A.A. Corp., Box 815, Gadsden, Ala. Greenlee, Charles A., Basic Refractories Inc., 845 Hanna Bldg., Cleveland 15, Ohio Highley, Robert W., Richard C. Remmey Son Co., 2882 W. Liberty Ave., Pittsburgh 16, Pa. Kircher, Wolfgang (S), (22c) Aachen/Lousbergstrasse 61, b./Dreehs, Germany Montgomery, Daniel (J), R. R. 2, Jacobsburg, Ohio Shipley, L. E., Edward Orton Jr. Foundation, 1445 Summit St., Columbus, Ohio Simpson, John D., Jr., Statesville Brick Co., Statesville, N. C. Vickers, A. Eric J., "Wynnstay," Millfield Rd., Whickham, Newcastle-upon-Tyne, England Wang, Franklin F. Y. (S), 405 N. Gregory St., Urbana, 111. National Institute of Ceramic Engineers ROSTER Member Grade Adcock, Albert S. Albery, Duane F. Alt, Leslie R. Amberg, Charles R. Ammerman, J. H. Andrews, Andrew I. Archbold, Walter H., Jr. Arnold, Howard C. Arnold, Thomas M. Arrance, Frank C. Vol. 32, No. 10 (1953) Austin, Chester R. Austin, James L. Babcock, Paul R. Bailey, Floyd Bair, George J. Baldauf, Earl E. Barringer, Lawrence E. Baumann, Henry N., Jr. Beam, James R. Beecher, Milton F. Beeton, Earl E. Bennett, A. Lee Bennett, Dwight Granville Bennett, Myles P. Berkelhamer, Louis H. Betz, George C. Birch, Raymond E. Blackburn, A. Reif Blake, William V. Blau, Henry H. Blessing, Robert Lee Blume, Arthur J. Boeker, Victor W. Bognar, Edwin J. Bollinger, Robert H. Booze, M. C. Bowne, M. S. Boyd, John E. Boyd, Robert C. Bradley, Richard S. Bradwell, Cyril Bramlett, William P., Jr. Brandt, William O. Brown, Lawrence H. Roster 75