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Calendar Of Meetings And Events

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C&EN CALENDAR Of Chemical Interest February-December 1970 For your convenience, this calendar has been placed in the center of the issue for easy removal and filing.

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Feb. 2 - 4 . Society of Rheology. Winter Meeting. Pasadena, Calif. Write W. G. Knauss, Caltech, Dept. of Aeronautics, 1201 East California Blvd., Pasadena, Calif. 91109. Feb. 2 - 5 . Weed Science Society of America. Annual Meeting. Queen Elizabeth Hotel, Montreal, Que. Write F. A. Holmes, E. I. du Pont de Ne­ mours & Co., 701 Welch Rd., Palo Alto, Calif. 94304. Feb. 2 - 5 . Chlorine Institute. 46th An­ nual Meeting. Biltmore Hotel, New York, N.Y. Write E. J. Laubusch, Chlorine Institute, 342 Madison Ave., New York, N.Y. 10017. Feb. 3 - 5 . Symposium on Reliability. Biltmore Hotel, Los Angeles, Calif. Write Philip D. Johnson, Managing Director, American Society for Non­ destructive Testing, 914 Chicago Ave., Evanston, III. 60202. Feb. 3 - 6 . Society of the Plastics Industry. 25th Annual Technical & Management Conference & Exhibit. Shoreham Hotel, Washington, D.C. Write Charles L Condit, SPI, 250 Park Ave., New York, N.Y. 10017. Feb. 4 - 6 . 5th Annual Conference on the Use of Computers in Process Control. Louisiana State University, Baton Rouge, La. Write Dr. Cecil L. Smith, Dept. of Chemical Engineer­ ing, LSU, Baton Rouge, La. 70803. Feb. 4 - 7 . American Marketing Associa­ tion. 4th Senior Marketing Manage­ ment Conference. Carefree Inn, Carefree, Ariz. Write ΑΜΑ, 230 North Michigan Ave., Chicago, III. 60601. Feb. 5. Ultrasonic Manufacturers As­ sociation. 4th Annual Technical Symposium. International Hotel, Jamaica, N.Y. Write UMA, 271 North Ave., New Rochelle, N.Y. 10801. Feb. 5. Interdisciplinary Symposium on Collagenase. Columbia-Presbyterian Medical Center, New York, N.Y. Write Dr. Ines Mandl, Columbia University College of Physicians & Surgeons, 630 West 168th St., New York, N.Y. 10032.

Feb. 6. ACS Louisiana Section. 2nd Mardi Gras Symposium on Theoreti­ cal Chemistry. Loyola University, New Orleans, La. Write D. J. Miller, Freeport Sulphur Co., Belle Chasse, La. 70037. Feb. 7 - 1 0 . 4th Annual Mardi Gras Symposium in Organic Chemistry. Louisiana State University, Baton Rouge, La. Write William A. Pryor, Dept. of Chemistry, LSU, Baton Rouge, La. 70803. Feb. 8 - 1 1 . Environmental Pollution. Public Affairs Symposium. Dickin­ son College, Carlisle, Pa. Write Roger Steck, News Office, Dickinson College, Carlisle, Pa. 17013. Feb. 11-12. Sanitary Engineering Con­ ference. Nitrate and Water Supply: Source and Control. Urbana, III. Write R. S. Engelbrecht, 3230 Civil Engineering Bldg., University of Illi­ nois, Urbana, III. 61801. Feb. 11-13. American Management Association. Annual Personnel Con­ ference. Palmer House, Chicago, III. Write ΑΜΑ, 135 West 50th St., New York, N.Y. 10020. Feb. 15-18. American Institute of Chemical Engineers. 67th National Meeting. Marriott Hotel, Atlanta, Ga. Write Richard Glover, AlChE, 345 East 47th St., New York, N.Y. 10017. Feb. 15-19. American Institute of Min­ ing, and Petroleum Engineers. 99th Annual Meeting. Denver, Colo. Write AIME, 345 East 47th St., New York, N.Y. 10017. Feb. 16-17. 27th Annual Midwest Fer­ tilizer Conference. Palmer House, Chicago, III. Write National Plant Food Institute, 1700 Κ St., N.W., Washington, D.C. 20006. Feb. 16-18. Committee on Problems of Drug Dependence. 32nd Annual Meeting. Washington-Hilton Hotel, Washington, D.C. Write Earl A. Grove, National Research Council, 2101 Constitution Ave., Washington, D.C. 20418. Feb. 16-18. 4th Annual Loss Preven­ tion Symposium. AlChE. Marriott Motor Hotel, Atlanta, Ga. Write Wil­ liam S. Wood, Sun Oil Co., P.O. Box 426, Marcus Hook, Pa. 19061. Feb. 16-19. Technical Association of the Pulp & Paper Industry. 55th Annual Meeting. New York Hilton, New York, N.Y. Write TAPPI, 360 Lexington Ave., New York, N.Y. 10017. Feb. 16-20. Symposium on the Han­ dling of Nuclear Information. Vi­ enna, Austria. Write International Atomic Energy Agency, Karntnerring 11, Vienna 1, Austria.

Feb. 16-20. Biochemical Test and Con­ trol Equipment Exhibition. London, England. Write R. Murphy, Hotpack Corp., 5071 Cottman Ave., Philadel­ phia, Pa. 19135. Feb. 17. ACS Orange County, South­ ern California, and San Gorgonio Sections. Joint Meeting on Drugs— Man—Society—A Multilateral View. University of California, Irvine, Calif. Write Frederick J. Kakis, c / o Chap­ man College, Orange, Calif. 92666. Feb. 18. American Coke & Coal Chemi­ cals Institute. Western Regional Meeting. Stouffer's Riverfront Inn, St. Louis, Mo. Write L. M. Ferguson, Executive Secretary, AC&CCI, 1010 16th St., N.W., Washington, D.C. 20036. Feb. 18-19. Electrochemical Society. Symposium on Separators for Re­ chargeable Batteries. Columbus, Ohio. Write Dr. Harvey L. Goering, Battelle Memorial Institute, 505 King Ave., Columbus, Ohio 43201. Feb. 19. Chemical Group, National As­ sociation of Purchasing Management. Annual Midwinter Conference. Holi­ day Inn, Philadelphia. Write Gerald P. Fox, Wm. H. Rorer, Inc., Fort Wash­ ington, Pa. 19034. Feb. 19-20. ASTM Committee E-27 on Hazard Potential of Chemicals, in Conjunction with AlChE. Atlanta, Ga. Write ASTM, 1916 Race St., Phila­ delphia, Pa. 19103. Feb. 1 9 - 2 1 . Southern Rubber Group. Winter Meeting. Hotel Sonesta, Houston, Tex. Write Thomas N. Loser, Wyrough & Loser, Inc., 2 Brunswick Circle Extension, Trenton, N.J. 08638. Feb. 22. American Institute of Chem­ ists. National Members and Fellows Dinner. Hotel America, Houston, Tex. Write AIC, 79 Madison Ave., New York, N.Y. 10016. Feb. 22-24. Chemical Marketing Re­ search Association. Astroworld Ho­ tel, Houston, Tex. Write D. A. Levine, Jefferson Chemical Co., P.O. Box 53300, Houston, Tex. 77052. Feb. 2 2 - 2 7 . ACS 159th National Meeting. Houston, Tex. Feb. 2 2 - 2 8 . 20th National Engineers Week. Sponsor, National Society of Professional Engineers. Write Ken­ neth E. Trombley, NSPE, 2029 Κ St., N.W., Washington, D.C. 20006. Feb. 2 3 - 2 7 . Labex 1970. Trade Show. Manchester, England. Write R. Mur­ phy, Hotpack Corp., 5071 Cottman Ave., Philadelphia, Pa. 19135. FEB. 2, 1970 C&EN 3A

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Feb. 24-26. Society of the Plastics In­ dustry. Cellular Plastics Automotive Conference. Hotel Pontchartrain, Detroit, Mich. Write SPI, 250 Park Ave., New York, N.Y. 10017. Feb. 25-26. Society of Vacuum Coaters. 13th Annual Technical Confer­ ence. Sheraton-Chicago Hotel, Chi­ cago, III. Write SVC, P.O. Box 3095, Cleveland, Ohio 44117. Feb. 2 5 - 2 7 . Conference on Pesticides in the Soil. East Lansing, Mich. Write S. K. Ries, Dept. of Horticul­ ture, Michigan State University, East Lansing, Mich. 48823. Feb. 25-27. National Industrial Con­ ference Board. Financial Confer­ ence. Waldorf-Astoria, New York, N.Y. Write NICB, 845 Third Ave., New York. N.Y. 10022. Feb. 2 6 - 2 7 . International Symposium on Nondestructive Testing of Nuclear Reactor Components. Rotterdam, the Netherlands. Write M. Boerma, Nederlands Atoomforum, Scheveningsweg 112, The Hague, the Nether­ lands. March 1-5. Radiation Research So­ ciety. 18th Annual Meeting. Statler Hilton, Dallas, Tex. Write Richard J. Burk, Jr., Executive Secretary, RRS, 4211 39th St., N.W., Washington, D.C. 20016. March 1-5. American Crystallographic Association. Tulane University, New Orleans, La. Write Ethel E. Snider, American Institute of Physics, 335 East 45th St., New York, N.Y. 10017. March 1-6. 21st Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy. Cleveland Convention Center, Cleveland, Ohio. Write R. Mainier, Koppers Co., Inc., 440 Col­ lege Park Dr., Monroeville, Pa. 15146. March 2 - 6 . National Association of Corrosion Engineers. Annual Con­ ference and Corrosion Show. Shera­ ton Hotel, Philadelphia, Pa. Write Dale Miller, NACE, 2400 West Loop South, Houston, Tex. 77027. March 3 - 6 . ASTM Committee D-20 on Plastics. Cincinnati, Ohio. Write C. B. Howard, Monsanto Co., Box 1311, Texas City, Tex. 77590. March 5. Drug, Chemical and Allied Trades Association. 44th Annual Dinner. Americana, New York, N.Y. Write Helen L. Booth, DCATA, Empire State Bldg., Suite 3014, 350 Fifth Ave., New York, N.Y. 10001. 4A C&EN FEB. 2, 1970

March 9 - 1 2 . Adhesive & Sealant Coun­ cil. Spring Meetings and Seminar on New Raw Materials. Cherry Hill Inn, Cherry Hill, N J . Write R. M. Stansel, Executive Secretary, Adhesive & Sealant Council, 1410 Higgins Rd. f Park Ridge, III. 60068. March 9 - 1 3 . American Society for Nondestructive Testing. National Spring Conference. Biltmore Hotel, Los Angeles, Calif. Write Philip D. Johnson, ASNT, 914 Chicago Ave., Evanston, III. 60202. March 9 - 1 3 . International Atomic En­ ergy Agency. Symposium on the Use of Isotopes in Hydrology. Vienna, Austria. Write John H. Kane, U.S. AEC, Washington, D.C. 20545. March 9-14. International Meeting on Primary Radiation Effects in Chemis­ try and Biology. Mar del Plata, Ar­ gentina. Write Dr. Marcelo A. Molinari, Comision Nacional de Energia Atomica, Avda. del Libertador 8250, Buenos Aires, Argentina. March 9-14. 12th International Sym­ posium (Biochemistry Series) on Waste Water of the Agricultural In­ dustry. Budapest, Hungary. Write Secretariat General, Commission In­ ternationale des Industries Agricoles et Alimentaires, 18 Ave. de Villars, 75 Paris Vile. March 1 0 - 1 1 . 2nd Ash Utilization Sym­ posium. Pittsburgh Hilton, Pitts­ burgh, Pa. Write Neil H. Coates, U.S. Bureau of Mines, P.O. Box 880, Morgantown, W.Va. 26505. March 10-12. National Federation of Science Abstracting and Indexing Services. Annual Conference. Boston-Sheraton Hotel, Boston, Mass. Write Stella Keenan, NFSAIS, 2102 Arch St., Philadelphia, Pa. 19103. March 10-17. National Association of Metal Finishers. Convention and Management Seminar. Camino Real, Mexico City, Mexico. Write P. Peter Kovatis, NAMF, 248 Lorraine Ave., Upper Montclair, N.J. 07043. March 11-13. 12th Scintillation and Semiconductor Counter Symposium. Shoreham Hotel, Washington, D.C. Write R. L. Chase, Bldg. 535, Brookhaven National Laboratory, Upton, N.Y. 11973. March 12-13. American Society of Civil Engineers. Conference on Is Water Quality Enhancement Feasible? Sheraton Park Hotel & Motor Inn, Washington, D.C. Write Stanley E. Kappe, P.O. Box 1036, Rockville, Md. 20850. March 12-13. Automated, High-Reso­ lution Analyses in the Clinical Lab­ oratory. Symposium. Oak Ridge, Tenn. Write Charles D. Scott, ORNL, P.O. Box X, Oak Ridge, Tenn. 37830. March 13. Chemical Institute of Can­ ada. Symposium on Natural Prod­ ucts and Medicinal Chemistry. Merck-Frosst Laboratories, Pointe Claire, Que. Write Dr. K. R. Fréter, c / o Pharma-Research Canada, Ltd., 250 Hymus Blvd., Pointe Claire, Montreal 730, Que.

March 15-17. Institute of Sanitation Management. 8th Annual Eastern Regional Conference. Nevele Country Club, Ellenville, N.Y. Write Robert E. Burleson, 1710 Drew St., Clearwater, Fla. 33515. March 15-19. Society of Toxicology. Annual Meeting. Marriott Motor Hotel, Atlanta, Ga. Write Dr. J. F. Borzelleca, Medical College of Virginia, Virginia Commonwealth University, Richmond, Va. 23219. March 17-19. Natural Gas Processors Association. 49th Annual Convention. Denver Hilton & Brown Palace, Denver, Colo. Write Carl Sutton, Natural Gas Processors Association, 808 Home Federal Bldg., 404 South Boston, Tulsa, Okla. 74103. March 17-20. 4th Cran field Fluidics Conference & Exhibition. Warwick University, Coventry, England. Write H. H. Stephens, 4th CFC, British Hydromechanics Research Association, Cranfield, Bedford, England. March 18-19. 2nd Mineral Waste Utilization Symposium. U.S. Bureau of Mines and NT Research Institute. Chicago, III. Write Murray A. Schwartz, NT Research Institute, 10 West 35th St., Chicago, III. 60616. March 18-19. Additives and Auxiliaries for the Rubber and Plastics Industries in 1970-80. International Conference. Brussels, Belgium. Write International Business Contact Club, 99 Ave. Nouvelle, Brussels 4, Belgium. March 19. Plastics Institute of America. Annual Meeting. Stevens Institute of Technology, Hoboken, N.J. Write Dr. A. W. Meyer, Executive Secretary, PIA, Castle Point Sta., Stevens Institute of Technology, Hoboken, N.J. 07030. March 19-20. Textile Quality Control Association. Spring Meeting. Clemson House, Clemson, S.C. Write William J. Martin, P.O. Box 147, Clemson, S.C. 29631. March 2 1 - 2 2 . 12th Annual Conference on Science and Technology in Israel and the Middle East. Pick Congress Hotel, Chicago, III. Write Leonard Drapkin, Director, Technological Dept., American Technion Society, 1000 Fifth Ave., New York, N.Y. 10028. March 23-25. Conference on Use of Small Accelerators for Teaching and Research. Oak Ridge, Tenn. Write Jerome L. Duggan, Oak Ridge Associated Universities, P.O. Box 117, Oak Ridge, Tenn. 37830. March 23-25. Info-Expo 70. 2nd National Meeting of Information Industry Association. Shoreham Hotel, Washington, D.C. Write MA, 1025 15th St., N.W., Washington, D.C. 20005. March 24. National Industrial Conference Board. Conference on the Consumer Market. Waldorf-Astoria, New York, N.Y. Write NICB, 845 Third Ave., New York, N.Y. 10022. March 24-25. ACS Metropolitan gional Meeting. Hoboken, Write Dr. H. E. Heller, Du Pont Photo Products Division, Parlin, 08591.

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April 1-3. National Pollution Control Conference & Exposition. Fairmont Hotel, San Francisco, Calif. Write P.O. Box 13116, Houston, Tex. 77019. April 1-3. Textile Research Institute. 40th Annual Meeting. Hotel Com­ modore, New York, N.Y. Write Dr. L. Rebenfeld, Box 625, Princeton, N.J. 08540. April 1-4. ACS 5th Middle Atlantic Re­ gional Meeting (MARM 1970). Uni­ versity of Delaware, Newark, Del. Write F. T. Wallenberger, General Chairman, 5th MARM, c/o Du Pont, Chestnut Run, TRL, Wilmington, Del. 19898.

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April 2 - 3 . International Symposium on Electrochemistry. University of Sur­ rey, Guildford, England. Write Dr. D. S. Allam, Dept. of Chemical Physics, University of Surrey, Guildford, Eng­ land.

March 24—25. Commercial Chemical Development Association. Annual Meeting. Waldorf Astoria, New York, N.Y. Write Hillary Robinette, Robinette Research Laboratories, Berwyn, Pa. 19312. March 24-26. National Industrial Solid Wastes Management Conference. University of Houston, Houston, Tex. Write Dr. H. Nugent My rick, Univer­ sity of Houston, 3801 Cullen Blvd., Houston, Tex. 77004. March 2 5 - 2 7 . Conference on Management Raleigh, N.C. Pest Management Conference, of Entomology, North Carolina University, Raleigh, N.C. 27607.

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March 30-April 2. American Marketing Association. 1970 International Marketing Congress. Muehlebach Hotel, Kansas City, Mo. Write Joan Haynes, ΑΜΑ, 230 North Michigan Ave., Chicago, III. 60601. March 3 1 . ASTM Committee C-24 on Building Joint Sealants. ASTM Hdqtrs., Philadelphia, Pa. Write ASTM, 1916 Race St., Philadelphia, Pa. 19103. March 3 1 . 26th Annual Quality Control Conference. American Society for Quality Control. University of Rochester, Rochester, N.Y. Write Norbert L. Helget, Xerox Corp., 800 Phillips Rd., Webster, N.Y. 14580. March 3 1 . Symposium on X-Ray An­ alysis. Royal Society, IP&PS, and International Union of Crystallogra­ phy. Write IP&PS, 47 Belgrave Sq., London, S.W.I, England. March 31-April 1. 6th Annual Confer­ ence on Plastics. Markets and Mar­ keting. Sponsors, SPI and ISU. Ames, Iowa. Write R. Shearer, Iowa State University, Ames, Iowa 50010. March 31-April 2. International Sym­ posium on Submillimeter Waves. New. York, N.Y. Write Jerome Fox, Brooklyn Poly, 333 Jay St., Brooklyn, N.Y. 11201. March 31-April 3. International Con­ ference on Physical and Structural Basis of Yield, Deformation, and Frac­ ture in Polymeric Materials. Cam­ bridge, England. Write IP&PS, 47 Belgrave Sq., London, S.W.I, Eng­ land. 6A

C&EN FEB. 2, 1970

April 2 - 3 . Conference on Applications of High Voltage Electron Microscopy. Harwell, England. Write IP&PS, 47 Belgrave Sq., London, S.W.I, Eng­ land.

April 7-10. 4th International Confer­ ence on Stress Analysis. Cambridge, England. Write R. J. Millson, Institu­ tion of Mechanical Engineers, 1 Bird­ cage Walk, London, S.W.I, England. April 7-10. Euchem Conference on Chemistry of Interfaces. Lunteren, the Netherlands. Write Stereenbos 19, Utrecht, the Netherlands. April 8 - 1 0 . USP Convention. Decen­ nial Meeting. Shoreham Hotel, Washington, D.C. Write Dr. A. C. DeGraff, USP Convention, 4630 Mont­ gomery Ave., Bethesda, Md. 20014. April 8 - 1 0 . Instrument Society of America. 11th Annual Symposium, Chemical & Petroleum Division. Pal­ mer House, Chicago, III. Write Dud­ ley E. McFadden, Jr., 7350 North Lincoln Ave., P.O. Box 8530A, Chi­ cago, III. 60680. April 9 - 1 0 . Metabolism and Biological Functions of Polyamines. Confer­ ence. Waldorf-Astoria Hotel, New York, N.Y. Write L. R. Neville, Asso­ ciate Executive Director, New York Academy of Sciences, 2 East 63rd St., New York, N.Y. 10021.

April 2 - 3 . Educators' Conference on Modern Methods of Handling Chemi­ cal Information. Washington, D.C. Write Martin A. Paul, NAS/NRC Com­ mittee on Chemical Information, 2101 Constitution Ave., N.W., Wash­ ington, D.C. 20418.

April 9 - 1 0 . 19th Southern Water Re­ sources and Pollution Control Con­ ference. Duke University, Durham, N.C. Write Dr. Edward H. Bryan, Dept. of Civil Engineering, Duke Uni­ versity, Durham, N.C. 27706.

April 3. ACS Louisiana Section. 7th Annual Meeting in Miniature. Loyola University, New Orleans, La. Write L. P. Gary, Dept. of Chemistry, Loyola University, New Orleans, La. 70118.

April 9 - 1 0 . Lead Industries Associa­ tion. Annual Meeting. Chase Park Plaza, St. Louis, Mo. Write Jerome F. Smith, LIA, 292 Madison Ave., New York, N.Y. 10017.

April 3 - 4 . 2nd Annual Symposium on Gas Chromatography. Hueston Woods, Ohio. Write Jack B. Hughes, P.O. Box 125, Dayton, Ohio 45402.

April 9 - 1 1 . American Association for Cancer Research. 61st Annual Meet­ ing. Sheraton Hotel, Philadelphia, Pa. Write Dr. Hugh J. Creech, AACR, 7701 Burholme Ave., Philadelphia, Pa. 19111.

April 5 - 1 1 . Technical Forum on Chem­ ical and Physical Principles for Im­ provement of Synthetic Fibers. Union of Textile Chemists and Colorists. Rittenwald, Germany. Write Dr. Bruno Kerres, Girmes-Werke, A.G., 4155 Grefrath, Germany. April 6 - 8 . Institute of Physics and the Physical Society. Conference on Electronic Properties of Surfaces and Thin Films. University of Reading, England. Write IP&PS, 47 Belgrave Sq., London, S.W. 1, England. April 6-10. Symposium on Pollution and Its Control. Chicago, III. Write Industrial Education, Institute of Gas Technology, 3424 South State St., Chicago, III. 60616. April 6 - 1 0 . The Chemical Society and Royal Institute of Chemistry. Joint Annual Meeting. Edinburgh, Scot­ land. Write J. F. Harding, Royal In­ stitute of Chemistry, 30 Russell Sq., London W.C. 1, England. April 7 - 8 . Conference on Disaster Haz­ ards. Sponsor, Combustion Insti­ tute. NASA Manned Spacecraft Cen­ ter, Houston, Tex. Write Mrs. H. S. Napadensky, NT Research Institute, 10 West 35th St., Chicago, III. 60616. April 7 - 1 0 . Conference on Thermophysical Properties of Solids at High Temperatures. UKAEA Hdqtrs., Risley, Warrington, England. Write Meetings Officer, Institute of Phys­ ics and the Physical Society, 47 Belgrave Sq., London, S.W.I, Eng­ land.

April 9 - 1 1 . Vth Mexican Congress of Pure and Applied Chemistry. Merida, Yucatan. Write Organizing Commit­ tee, V Congress, Sociedad Quimica de Mexico, c/o Administracion de Correos 4, Mexico 4, D.F., Mexico. April 1 0 - 1 1 . 2nd Annual Southeastern Sectional Conference of Undergradu­ ate Student Chemists. Sponsor, ACS Student Affiliates. Clemson Univer­ sity, Clemson, S.C. Write Lynn Deanhardt, Box 2792, University Station, Clemson, S.C. 29631. April 12-14. Society of the Plastics Industry. 28th Annual SPI of Can­ ada Conference. Royal York Hotel, Toronto, Ont. Write Robert T. Brennan, SPI, 250 Park Ave., New York, N.Y. 10017. April 12-14. Sugar Industry Technolo­ gists. Annual Meeting. Fontaine­ bleau Hotel, New Orleans, La. Write Sugar Industry Technologists, P.O. Box 47, Medford, Mass. 02155. April 12-16. Institute of Environ­ mental Sciences. 16th Annual Meet­ ing. Sheraton Boston Hotel, Bos­ ton, Mass. Write IES, 940 East Northwest Hwy., Mt. Prospect, III. 60056. April 12-17. Federation of American Societies for Experimental Biology. 54th Annual Meeting. Atlantic City, N.J. Write Mrs. Helena B. Lemp, Di­ rector, Office of Scientific Meetings, FASEB, 9650 Rockville Pike, Be­ thesda, Md. 20014.

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April 12-17. American Pharmaceutical Association and APhA Academy of Pharmaceutical Sciences. Annual Meeting. Park-Sheraton & Shoreham Hotels, Washington, D.C. Write Don Prescott, APhA, 2215 Constitution Ave., N.W., Washington, D.C. 20037. April 13-14. Rheology Research Con­ ference. Rheology Research Center, Madison, Wis. Write John T. Quigley, University of Wisconsin, 432 North Lake St., Madison, Wis. 53706. April 13-14. Conference on Polymer Structure and Properties. Manches­ ter, England. Write Registrar, Uni­ versity of Manchester Institute of Sci­ ence & Technology, P.O. Box 88, Manchester M60 1QD, England. April 13-14. /nter-Soc/ety Color Coun­ cil. Annual Meeting. Statler Hilton, New York, N.Y. Write Ralph M. Evans, Secretary, l-SCC, Eastman Kodak Co., Photographic Tech. Div., Bldg. 69, Rochester, N.Y. 14650. April 13-15. Commercial Radiation Processing of Plastics. Conference. Marriott Motor Hotel, Boston, Mass. Write Joyce A. Taylor, c / o Moleculon Research Corp., 139 Main St., Cam­ bridge, Mass. 02142. April 13-16. American Industrial Health Conference. Chicago, III. Write Howard N. Schulz, 55 East Washington St., Chicago, III. 60602. April 13-16. Research & Development Associates for Military Food & Pack­ aging Systems. Annual Meeting. Sheraton-Chicago Hotel, Chicago, III. Write Col. Merton Singer, R&D Asso­ ciates, 39 Whitehall St., New York, N.Y. 10021. April 13-17. American Society for Pharmacology and Experimental Therapeutics. Hotel Dennis, Atlantic City, N.J. Write Dr. Ellsworth B. Cook, 9650 Rockville Pike, Bethesda, Md. 20014. April 13-18. Conference on Automa­ tion in the Pulp and Paper Industries. Torremolinos, Spain. Write Asociacion de Investigacion Technica de la Industria Papelera Espanola, Plaza de Salamanca 9, Madrid-6, Spain. April 14-15. Symposium on Naturally Occurring Carcinogens; Biochemistry, Physiological Role, and Mode of Ac­ tion. Prague, Czechoslovakia. Write Dr. J. Hradec, Dept. of Biochemistry, Oncological Institute, Prague 8 — Bulovka, Czechoslovakia.

April 14-16. International Pulp and Paper Instrumentation. 11th Sym­ posium. Greenville, S.C. Write R. R. Newton, Jr., J. E. Sirrine Co., P.O. Box 5456, Sta. B, Greenville, S.C. 29606.

April 2 1 - 2 4 . Fiber Society, Spring Meeting. Clemson, S.C. Write Ludwig Rebenfeld, Secretary-Treasurer, Fiber Society, Textile Research In­ stitute, Box 625, Princeton, N.J. 08540.

April 14-16. Conference on Industrial Carbons and Graphite. London, England. Write Secretary, Society of Chemical Industry, 14 Belgrave Sq., London, S.W.I, England.

April 22-24. Offshore Technology Conference. Sponsors, AlChE, AIME, et al. Albert Thomas Con­ vention Center, Houston, Tex. Write Stan R. Houston, 6200 North Central Expressway, Dallas, Tex. 75206.

April 15-16. Environmental Pollution Conference. Edgewood Arsenal, Md. Write Arthur D. Sullivan, USN (Ret.) AOA Hdq., Washington, D.C. 20005. April 15-17. 16th Annual Southeastern ISA Conference & Exhibit and 11th International ISA Pulp and Paper Symposium. Greenville, S.C. Write James C. White, ISA Western Carolinas Section, Greenville, S.C. April 15-17. General Discussion on Polymer Solutions. Manchester, England. Write Faraday Society, 6 Gray's Inn Sq. f London, W.C.I, Eng­ land. April 16-17. Fluid Logic Conference. Sheraton-Boston Hotel, Boston, Mass. Write Steering Committee, Seminar on Fluid Logic Systems, Fluid Power Society, P.O. Box 905, Elm Grove, Wis. 53122. April 16-18. International Geochemical Exploration Symposium. To­ ronto, Ont. Write Dr. R. W. Boyle, Geological Survey of Canada, 601 Booth St., Ottawa, Ont. April 16-18. Institute of Environmental Sciences. Thermal Pollution Semi­ nar. Sheraton-Plaza Hotel, Boston, Mass. Write T. W. H. Miller, IES, 940 East Northwest Hwy., Mt. Prospect, III. 60056. April 17-18. ACS Western New York and Genessee Valley Sections. Joint Meeting on Modern Methods of Chemical Separations. Buffalo, N.Y. Write Robert Good, Dept. of Chemical Engineering, State University of New York, Buffalo, N.Y. 14214. April 19-22. Scientific Apparatus Mak­ ers Association. Annual Meeting. Boca Raton Hotel & Club, Boca Raton, Fla. Write Richard J. Curry, SAMA, 1140 Connecticut Ave., N.W., Washington, D.C. 20036. April 19-22. American Association for Contamination Control. 9th Annual Technical Meeting and Exhibit. Ana­ heim Convention Center, Anaheim, Calif. Write Wm. T. Maloney, AACC, 6 Beacon St., Boston, Mass. 02108. April 19-22. 8th Rare Earth Research Conference. Pioneer Auditorium, Reno, Nev. Write T. A. Hen rie, c / o U.S. Bureau of Mines, Reno, Nev. 89505. April 19-24. Australian Institute of Food Science and Technology, Southern Branch. 4th Annual Con­ vention. Melbourne, Australia. Write Harold S. Warren, Honorary Secretary, 10 Sturdee Rd., Black Rock, Victoria 3193, Australia. April 20-23. National Packaging Ex­ position & Conference. American Management Association. New York Coliseum & Americana Hotel, New York, N.Y. Write ΑΜΑ, 135 West 50th St., New York, N.Y. 10020.

April 2 3 - 2 6 . Association of Clinical Scientists. Spring Meeting. Pontchartrain Hotel, Detroit, Mich. Write Betty Anderson, University of Con­ necticut Medical School, 2 Holcomb St., Hartford, Conn. 06112. April 2 6 - 3 0 . American Oil Chemists' Society. 61st Annual Meeting. Jung Hotel, New Orleans, La. Write C. H. Hauber, AOCS, 35 East Wacker Dr., Chicago, III. 60601. April 26-May 1. American Society for Microbiology. Sheraton-Boston, Bos­ ton, Mass. Write R. W. Sarber, 1913 Eye St., N.W., Washington, D.C. 20006. April 26-May 2. Industrial Research Conference. Pocono Manor Inn, Pocono Manor, Pa. Write Mary-Francis Garvey, Executive V.P., Livingston In­ stitute, 417 West 118th St., New York, N.Y. 10027. April 2 7 - 3 0 . O/f & Colour Chemists Association. Technical Exhibition. London, England. Write British In­ formation Services, 845 Third Ave., New York, N.Y. 10022. April 2 8 - 3 0 . International Symposium on Blood Coagulation and Hemostasis. Sherbrooke, Que. Write Dr. R. Losito, Dept. of Medicine, Univer­ sity Medical Centre, University of Sherbrooke, Sherbrooke, Que. April 2 8 - 3 0 . 3rd Annual Scanning Electron Microscope Symposium. Illinois Institute of Technology, Chi­ cago, III. Write Edward P. Fahy, Spe­ cial Affairs, NT Research Institute, 10 West 35th St., Chicago, III. 60616. April 28-May 1. National Microfilm Association. 19th Annual Conven­ tion and Exhibition. Hilton Hotel, San Francisco, Calif. Write Frederick L. Williford, NMA, P.O. Box 386, 250 Prince George St., Annapolis, Md. 20414. April 2 9 - 3 0 . 15th Annual Data Process­ ing Conference. University of Ala­ bama, Birmingham, Ala. Write Anyan A. Gordon, Commerce Extension Services, P.O. Box 2987, University, Ala. 35486. April 29-May 1. 10th Cotton Utiliza­ tion Research Conference. New Or­ leans, La. Write Dr. B. H. Wojcik, Assistant Director for Industrial De­ velopment, SURDD, P.O. Box 19687, New Orleans, La. 70119. April 29-May 2. Ana/yt/ca 70. Con­ ference on Systems of Biochemical Analysis & Exhibition. Munich, Ger­ many. Write Fachausstellung Analytica 70: Munchener Messe- und Ausstellungsgesellschaft, mbH, Theresienhohe 13, Postfach 200, 8000 Munich 12, Germany. FEB. 2, 1970 C&EN 7A

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May 2 - 7 . American Ceramic Society. 72nd Annual Meeting & Exposition. Sheraton Hotel and Philadelphia Civic Center, Philadelphia, Pa. Write Karl H. Sandmeyer, Carborundum Co., Box 367, Niagara Falls, N.Y. 14302. May 3 - 7 . ΎΑΡΡΙ Coating Conference. Shamrock Hotel, Houston, Tex. Write TAPPI, 360 Lexington Ave., New York N.Y. 10017. May 3 - 8 . International Radiation Pro­ tection Association. 2nd Interna­ tional Congress. Brighton, England. Write Brian Godbold, Central Electric­ ity Generating Board, Laud House, 20 Newgate St., London E.C.I, England. May 3 - 1 0 . JAPANPLAS '70. 3rd In­ ternational Fair of Plastics. Harumi Fairgrounds, Tokyo, Japan. Write Japan Society of Plastics Technology, 10-18, 2-chome, Ginza, Chuo-ku, Tokyo, Japan. May 4 - 7 . International Conference on Ion Implantation in Semiconductors. North American Rockwell Science Center, Thousand Oaks, Calif. Write Sven Roosild, Air Force Cambridge Research Laboratories, L. G. Hanscorn Field, Bedford, Mass. 01730. May 4 - 7 . Society of Plastic Engineers. Annual Technical Conference. Ameri­ cana, New York, N.Y. Write Roger P. Fox, SPE, 656 West Putnam Ave., Greenwich, Conn. 06830. May 4 - 7 . Symposium on Sol-Gel Proc­ esses and Reactor Fuel Cycles. Gatlinburg, Tenn. Write R. G. Wymer, ORNL, P.O. Box X, Oak Ridge, Tenn. 37830. May 4 - 8 . American Society of Lubrica­ tion Engineers. 25th Annual Meet­ ing. Sheraton-Chicago Hotel, Chi­ cago, III. Write Mrs. R. E. McDonald, 838 Busse Hwy., Park Ridge, III. 60068. May 5-7. American Federation of In­ formation Processing Societies, Spring Joint Computer Conference. Convention Hall, Atlantic City, N.J. Write D. R. Cruzen, AFIPS, 210 Sum­ mit Ave., Montvale, N.J. 07645. May 5 - 7 . 25th Purdue Industrial Waste Conference. Purdue University, La­ fayette, Ind. Write Don E. Bloodgood, Purdue University, Lafayette, Ind. 47907. May 5 - 8 . ACS Division of Rubber Chemistry. Washington, D.C. Write F. M. O'Connor, Harwick Standard Chemical Co., 60 South Seiberling St., Akron, Ohio 44305. May 7 - 8 . Institute of Paper Chemistry. Annual Executives' Conference. Appleton, Wis. Write T. A. Howells, In­ stitute of Paper Chemistry, Box 1048, Appleton, Wis. 54911. 8A C&EN FEB. 2, 1970

May 7 - 8 . Symposium on Recent Re­ search in Regulation of Intermediary Metabolism and Diabetes. Omaha, Neb. Write Dr. Myron A. Mehlman, Dept. of Biochemistry, University of Nebraska College of Medicine, Omaha, Neb. 68105. May 7 - 8 . 7th Annual National Infor­ mation Retrieval Colloquium. Shera­ ton Hotel, Philadelphia, Pa. Write L. Schultz, Biosciences Information Ser­ vice, 2100 Arch St., Philadelphia, Pa. 19103. May 8. ACS East Texas Meeting-inMiniature. East Texas State Univer­ sity, Commerce, Tex. Write Darrell Sherwood, Chemistry Dept., East Texas State University, Commerce, Tex. 75428. May 10-12. American Coke & Coal Chemicals Institute. Eastern Re­ gional Meeting. Hotel Hershey, Hershey, Pa. Write L. M. Ferguson, Executive Secretary, AC&CCI, 1010 16th St., N.W., Washington, D.C. 20036. May 10-13. Proprietary Association. Annual Meeting. The Greenbrier, White Sulphur Springs, W.Va. Write Alan W. Mercill, Trade & PR, Proprie­ tary Association, 1700 Pennsylvania Ave., N.W., Washington, D.C. 20006. May 10-15. Electrochemical Society. 137th National Meeting. Biltmore Hotel, Los Angeles, Calif. Write Ernest G. Enck, Electrochemical So­ ciety, 30 East 42nd St., New York, N.Y. 10017. May 10-15. International Science Fair. Baltimore, Md. Write Science Serv­ ice, 1719 Ν St., N.W., Washington, D.C. 20036. May 10-15. 2nd International Confer­ ence on Chemical Vapor Deposition. Electrochemical Society and Ameri­ can Nuclear Society. Los Angeles, Calif. Write J. C. Withers, General Technologies Corp., 1821 Michael Faraday Dr., Reston, Va. 22070. May 11-13. American Society for Qual­ ity Control. 24th Annual Technical Conference & Exhibit. Pittsburgh Hilton Hotel, Pittsburgh, Pa. Write Robert W. Shearman, ASQC, 161 West Wisconsin Ave., Milwaukee, Wis. 53203. May 11-13. National Association of Printing Ink Manufacturers. 56th Annual Convention. Boca Raton Hotel, Boca Raton, Fla. Write Rumrill-Hoyt, Inc., 380 Madison Ave., New York, N.Y. 10017. May 11-14. Design Engineering Show. Chicago, III. Write Clapp & Poliak, Inc., 245 Park Ave., New York, N.Y. 10017. May 11-14. Material Handling Insti­ tute. National Material Handling Show. Rivergate Exhibition Hall, New Orleans, La. Write Regis J. Delmontagne, M H I, Gateway Towers, Pittsburgh, Pa. 15222. May 11-15. Gesellschaft Deutscher Chemiker. 4th International Color Symposium. Lindau (Lake Con­ stance) Germany. Write Gesellschaft Deutscher Chemiker, 6000 Frankfurt (M), Germany, Postfach 11 90 75. May 11-15. American Industrial Hy­ giene Conference. Detroit Hilton, De­ troit, Mich. Write George D. Clayton, Executive Secretary, American Indus­ trial Hygiene Association, 25711 Southfield Rd., Southfield, Mich. 48075.

May 12-14. 15th Biennial Chemical In­ dustries Materials and Corrosion Con­ ference. Wrightsville Beach, N.C. Write E. A. Tice, International Nickel Co., Inc., 67 Wall St., New York, N.Y. 10005. May 13-15. American Petroleum Insti­ tute. Division of Refining, 35th Mid­ year Meeting. Rice Hotel, Houston, Tex. Write A. A. Mulliken, Jr., API, 1271 Avenue of the Americas, New York, N.Y. 10020. May 13-17. U.S. Trademark Associa­ tion. Annual Meeting. Pocono Manor Inn & Golf Club, Pocono Manor, Pa. Write Dorothy Fey, Ex­ ecutive Director, U.S. Trademark As­ sociation, 6 East 45th St., New York, N.Y. 10017. May 14-15. Symposium on Photoelectron Spectroscopy. University of Tennessee, Knoxville, Tenn. Write George K. Schweitzer, Dept. of Chem­ istry, University of Tennessee, Knox­ ville, Tenn. 37916. May 14-15. Southern Textile Research Conference. Adventure Inn, Hilton Head Island, S.C. Write Duane W. Snyder, Crompton Shenandoah Co., Drawer 907, Waynesboro, Va. 22980. May 14-15. Southeastern Textile In­ dustry Technical Conference. Mar­ riott Motor Hotel, Washington, D.C. Write C. R. Williams, West Point Mfg. Co., Langdale, Ala. 36864. May 14-16. American Institute of Chemists. 47th Annual Meeting. Mellon Institute, Pittsburgh, Pa. Write AIC, 79 Madison Ave., New York, N.Y. 10016. May 16-20. 9th Annual Finishing MET Show and 41st Technical Conference. Metal Finishing Society of Japan. Tokyo Trade Center, Tokyo, Japan. Write Kinzoku Hyomen Gijutsu Kyokai, c / o Kyodo Bldg., 2, Iwamotocho, Kanda, Chiyodaku, Tokyo, Ja­ pan. May 17-20. Chemical Specialties Man­ ufacturers Association. 56th Mid­ year Meeting. Drake Hotel, Chicago, III. Write Michael D. Reichgut, CSMA, 50 East 41st St., New York, N.Y. 10017. May 17-20. American Institute of Chemical Engineers and Puerto Rican Institute of Chemical Engineers. Joint Meeting. Americana Hotel, San Juan, P.R. Write Richard Glover, AlChE, 345 East 47th St., New York, N.Y. 10017. May 17-20. Fluid Controls Institute. Annual Meeting. The Cloister, Sea Island, Ga. Write E. R. Rath, Execu­ tive Secretary, FCI, P.O. Box 1485, Pompano Beach, Fla. 33060. May 17-20. National Association of Purchasing Management. 55th An­ nual International Purchasing Con­ ference and Inform-A-Show. War Me­ morial Auditorium & Sheraton-Bos­ ton, Boston, Mass. Write Frank J. Winters, National Association of Pur­ chasing Management, 11 Park PI., New York, N.Y. 10007. May 1 7 - 2 1 . 5th International Pulp Bleaching Conference. TAPPI & CPPA. Atlanta, Ga. Write A. Edward Dembitz, TAPPI, 360 Lexington Ave., New York, N.Y. 10017.

The Instrument of the month. The Varian Techtron AA-120. The finest medium priced atomic absorption/flame emission spectrophotometer ever to excite an atom. For chemists who simply want the best possible performance for their money. The AA-120. Built to handle trace, major constituent and quantitative analyses for 68 different elements. For applications in metallurgy, mining, agriculture, geochemistry, pharmaceuticals, biomedical/

clinical, petroleum, pollution or industrial products. Designed with internal modularity, the AA-120 is very compact, extremely sensitive and refreshingly easy to operate and install. Naturally, we'd like you to see and test the Varian Techtron AA-120 soon. For more details or a demonstration, contact Varian Techtron, Walnut Creek, California 94598;NEVAAzabudaiBldg., Tokyo, Japan; Malton, Ontario, Canada; Crows Nest N.S.W., Australia; orZug, Switzerland. Meantime, in the interest of atomic absorption and flame emission spectroscopy, we present (on the following pages) a pictorial elaboration of the AA-120 and its accessories as demonstrated by our lab mate.

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a. Before beginning the day's analyses, lab mate Nanci Hersh discusses some instrumental conditions with lab boss George Thomas. b. Next, she inserts a Varian Techtron hollow cathode lamp into the specially designed turret which allows operation of up to four lamps for multi-element repetitive analyses. c. Here, she's adjusting the current to the hollow cathode lamp. d. Prior to the actual sample run, Nanci aspirates a "standard" solution into the burner, and adjusts the grooved titanium burner head controls for vertical, horizontal, and rotational positioning. e. For automatically resetting the baseline of the instrument, Nanci uses the Auto 100 control while aspirating a blank solution. f. During analysis, Miss Hersh decides to make a small electronic adjustment of the DI-30 Digital Indicator which allows her to read out her results directly in concentration units. If necessary, she can also straighten out her working curve by using the DC-31 Digital Corrector located just below the digital indicator. g. The analysis completed, our lab mate reads the results on a tape fed to her by a third Varian Techtron digital accessory, the DP-32 Digital Printer.

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Lab Laughs The Varian Techtron Lab Manual defines state-of-the-art as the best there is until something better comes along; or, here's where we were when the R&D money ran out. First Chemist: Do you believe marriage is a lottery? Second Chemist: No. In a lottery a man is supposed to have a chance. Then there was the wishy-washy protester who was afraid to burn his draft card—so he boiled it. Lest We Forget Dept. - I n 1938, the State of Wyoming produced one-third of an edible dry bean for every man, woman and child in the United States. Spectrophotometer is just another 17-letterword.

There's a new rock group in Boston called the Blue Genes. She was only a life scientist's daughter—but nobody ever questioned her structure. The president of the University of Texas: "We're working to develop a university our football team can be proud of." This traveling Varian salesman was stuck in a small town and went to the only available farm house for a place to sleep. "Can you put me up for the night?" he asked the farmer. "Reckon I can," he answered, "if you don't mind sharing a room with my young son." "My God!" said the salesman, "I'm in the wrong joke!" Send your favorite lab joke or cartoon on a postcard to Varian Techtron Lab Joke Editor, Varian Techtron, Walnut Creek, California 94598. $ 10 will be paid to the contributors whose cards are selected. Sorry, jokes and cartoons cannot be returned.

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May 17-22. Society of Photographic Scientists and Engineers. Annual Conference. New York Hilton, New York, N.Y. Write SPSE, 1330 Massa­ chusetts Ave., N.W., Washington, D.C. 20005. May 18-22. National Fire Protection Association. 74th Annual Meeting. Royal York Hotel, Toronto, Ont. Write C. S. Morgan, NFPA, 60 Batterymarch St., Boston, Mass. 02110. May 1 9 - 2 1 . 24th Power Sources Sym­ posium. Shelbume Hotel, Atlantic City, N.J. Write Power Sources Divi­ sion, U.S. Army Electronics Com­ mand, Fort Monmouth, N.J. 07703. May 19-22. Society for Experimental Stress Analysis. Spring Meeting. Sheraton Motor Inn, Huntsville, Ala. Write SESA, 21 Bridge Sq., Westport, Conn. 06880. May 19-23. International Association for Cereal Chemistry. 7th General Assembly. Dresden, Germany. Write Dr. F. Schweitzer, SecretaryGeneral, Schmidgasse 3-7, A2320 Schwechat, Austria. May 22. Chemical Institute of Canada. Rubber Division. Niagara Falls, Ont. Write Dr. Peter Lumb, Polymer Corp., Ltd., Sarnia, Ont. May 2 4 - 2 7 . Institute of Food Technologists. 30th Annual Meeting. San Francisco, Calif. Write George Foster, IFT, Suite 2120, 221 North La Salle St., Chicago. III. 60601. May 2 4 - 2 7 . Conference on Fluids Engineering. Detroit, Mich. Write A. B. Conlin, ASME, 345 East 47th St., New York, N.Y. 10017. May 2 4 - 2 7 . International Conference on Nuclear Reactors and Radioiso­ topes. Toronto. Write R. P. Gross, Canadian Nuclear Association, 11 Adelaide St. West, Toronto 1, Ont. May 2 4 - 2 9 . International Symposium on Utilization of Tidal Power. Nova Scotia Technical College, Halifax, N.S. Write Dr. Thomas J. Gray, Nova Scotia Technical College, P.O. Box 1000, Halifax, N.S.

May 2 4 - 2 9 . ACS and CIC. Joint Meet­ ing. Royal York Hotel, Toronto, Ont. Write W. M. Campbell, Ontario Re­ search Foundation, Sheridan Park, Ont. May 2 4 - 2 9 . Institute of Food Tech­ nologists. 30th Annual Meeting. Civic Auditorium, San Francisco, Calif. Write IFT, 221 North LaSalle St., Chicago, III. 60601. May 2 5 - 2 6 . Symposium on Cholinergic Ligand Interactions. Buffalo, N.Y. Write Dr. D. J. Triggle, School of Pharmacy, State University of New York, Buffalo, N.Y. 14214. May 2 5 - 2 7 . Instrument Society of America. 16th Analysis Instrumenta­ tion Symposium. Chatham Center, Pittsburgh, Pa. Write William V. Dailey, Mine Safety Appliances Co., 201 North Braddock Ave., Pittsburgh, Pa. 15208. May 2 5 - 2 7 . Institute of Nuclear Ma­ terials Management. 11th Annual Meeting. Riverside Motor Lodge, Gatlinburg, Tenn. Write Sheldon Kops, U.S. AEC Chicago Operations Office, 9800 South Cass Ave., Argonne, III. 60439.

June 1-5. American Society for Nondestructive Testing. 6th International Conference. Hanover, Germany. Write Philip D. Johnson, ASNT, 914 Chicago Ave., Evanston, III. 60202. June 1-6. 9th International Mineral Processing Congress. Prague, Czechoslovakia. Write Ustav Pro Vyzkum Rud, Modranska 23, Prague 4, Czechoslovakia. June 2 - 3 . Symposium on Silicon Device Processing. National Bureau of Standards, Gaithersburg, Md. Write ASTM, 1916 Race St., Philadelphia, Pa. 19103. June 2 - 4 . Symposium on Maintenance in the Process Industries. Barcelona, Spain. Write Seccion Tecnica de Quimieca, Asociacion Nacional de Ingenieros Industrials, Via Layetana, 39, Barcelona-3, Spain. June 2 - 5 . XXIst M id-America Symposium on Spectroscopy. Society for Applied Spectroscopy. SheratonChicago Hotel, Chicago, III. Write Warren A. Loseke, NT Research Institute, 10 West 35th St., Chicago, III. 60616.

May 2 5 - 3 0 . 5th IMEKO Congress. In­ ternational Measurement Confedera­ tion. Versailles, France. Write IMEKO Secretariat, Budapest 5, P.O.B. 457, Hungary.

June 2 - 5 . 6th International Symposium on Advances in Chromatography. Hotel Fontainebleau, Miami Beach, Fla. Write Dr. A. Zlatkis, Dept. of Chemistry, University of Houston, Houston, Tex. 77004.

May 2 6 - 2 7 . Society of Cosmetic Chem­ ists. 25th Anniversary Meeting. Americana Hotel, New York, N.Y. Write Shirley Ann DeRagon, Amerchol Park, Talmadge Rd., Edison, N.J. 08817.

June 2 - 5 . Precision Electromagnetic Measurements. Conference. NBS Laboratories, Boulder, Colo. Write George Goulette, Bureau of Continuation Education, University of Colorado, Boulder, Colo. 80302.

May 27. Association of American Feed Control Officials. Spring Meeting. Sheraton Blackstone Hotel, Chicago, III. 60605. Write AAFCO, Agricultural Experiment Station, University of Kentucky, Lexington, Ky. 40506.

June 2 - 5 . 12th Annual Symposium on New Coatings and New Coatings Raw Materials. Detroit Lakes, Minn. Write A. E. Rheineck, Dept. of Polymers & Coatings, North Dakota State University, Fargo, N.D. 51802.

May 2 7 - 2 8 . Zinc and Lead Develop­ ment Associations. Conference. Royal Garden Hotel, London, Eng­ land. Write ZDA/LDA, 34 Berkeley Sq., London W1X 6AJ, England.

June 2 - 1 0 . 3rd International Rubber & Plastic Exhibition. Europlastic 70Eurocaoutchouc. Porte de Versailles, Paris, France. Write French Trade Shows, 1350 Avenue of the Americas, New York, N.Y. 10019.

May 2 7 - 2 9 . Society of the Plastics In­ dustry. 27th Annual Western Sec­ tion Conference. Del Coronado Ho­ tel, St. Charles, III. Write Robert T. Brennan, SPI, 250 Park Ave., New York, N.Y. 10017.

June 3 - 5 . ACS Central Regional Meeting. Ohio State University, Columbus, Ohio. Write Dr. Daryle Busch, Dept. of Chemistry, Ohio State University, Columbus, Ohio 43201.

May 2 7 - 2 9 . Symposium on the Use of Low Energy Accelerators. IP&PS. London, England. Write A. H. Jiggins, Dept. of Physics, Borough Poly­ technic, London, S.E.I, England. June 1-5. 3rd European Conference on Plastics. Paris, France. Write Société de Chimie Industrielle, 80, route de Saint-Cloud, 92-Rueil-Malmaison, France.

June 3 - 6 . Society of Technical Writers & Publishers. 17th International Technical Communications Conference. Leamington Hotel, Minneapolis, Minn. Write Lyle Hauge, 1610C Weston Lane North, Wayzata, Minn. 55391. June 4—5. 4th International Symposium in Molecular Biology. Americana, New York, N.Y. Write Dr. Edward G. Bassett, Miles Laboratories, Inc., Elkhart, Ind. 46514.

June 1-5. International Rubber Conference. Paris, France. Write Société de Chimie Industrielle, .80, route de Saint-Cloud, 92-Rueil-Malmaison, France.

June 4 - 6 . Manufacturing Chemists Association. Annual Meeting. Greenbrier, White Sulphur Springs, W.Va. Write MCA, 1825 Connecticut Ave., N.W., Washington, D.C. 20009.

June 1-5. Reinforced Plastics Exhibition. London, England. Write Christopher Bradley, Brintex Exhibitions, Ltd., 3-4 Clement's Inn, Strand, London, W.C.2, England.

June 7 - 1 0 . 7th Water and Air Conference. Pick Nicollet Hotel, Minneapolis, Minn. Write H. O. Teeple, TAPPI, 360 Lexington Ave., New York, N.Y. 10017. FEB. 2, 1970 C&EN

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June 7 - 1 1 . 7th International Mechan­ ical Pulping Conference. Chateau Laurier, Ottawa, Ont. Write Canadian Pulp & Paper Association, 2300 Sun Life Bldg., Montreal 110, Que. June 7 - 1 1 . Spec/a/ Libraries Associa­ tion. Annual Convention. Sheraton Cadillac, Detroit, Mich. Write George H. Ginader, SLA, 235 Park Ave. South, New York, N.Y. 10003. June 8 - 1 0 . International Symposium on Chemical Reaction Engineering. ACS, AlChE, et a/. Washington, D.C. Write Κ. Β. Bischoff, Dept. of Chemi­ cal Engineering, University of Mary­ land, College Park, Md. 20742. June 8 - 1 1 . Consulting Engineers Coun­ cil. Annual Convention. StatlerHilton Hotel, Boston, Mass. Write Dale Litherland, CEC, 1155—15th St., N.W., Suite 713, Washington, D.C. 20005. June 8 - 1 1 . 5th International Confer­ ence on Molecular Crystals. Univer­ sity of Pennsylvania, Philadelphia, Pa. Write Robin M. Hochstrasser, Laboratory for Research on the Struc­ ture of Matter, University of Pennsyl­ vania, 3231 Walnut St., Philadelphia, Pa. 19104. June 9 - 1 2 . XlVth International Confer­ ence on the Biochemistry of Lipids. Lund, Sweden. Write W. O. Lundberg, Hormel Institute, 801—16th Ave. N.E., Austin, Minn. 55912. June 9 - 1 2 . Canadian Federation of Bi­ ological Societies. Annual Meeting. University of Montreal, Montreal, Que. Write Dr. Κ. Κ. Carroll, Dept. of Bio­ chemistry, University of Western On­ tario, London 72, Ont. June 10-12. 3rd Symposium on Low Energy X- and Gamma-Ray Sources and Applications. Boston College, Boston, Mass. Write C. A. Ziegler, V.P., Panametrics, Inc., 221 Crescent St., Waltham, Mass. 02154. June 10-12. Heat Transfer and Fluid Mechanics Institute. Naval Post­ graduate School, Monterey, Calif. Write T. Sarpkaya, 1970 HTFMI Gen­ eral Chairman, Dept. of Mechanical Engineering, Code 59, Naval Post­ graduate School, Monterey, Calif. 93940. June 14-18. ACS Division of Medici­ nal Chemistry. 12th National Medic­ inal Chemistry Symposium. Univer­ sity of Washington, Seattle, Wash. Write J. R. Dice, Dept. of Chemistry, Parke-Davis Research Laboratories, Ann Arbor, Mich. 48106. June 14-19. Air Pollution Control As­ sociation. 63rd Annual Meeting. Chase Park Plaza Hotel, St. Louis, Mo. Write Arnold Arch, Executive Secretary, APCA, 4400—5th Ave., Pittsburgh, Pa. 15213. June 14-19. ASTM 18th Annual Con­ ference on Mass Spectrometry and Allied Topics. Committee E-14. Sheraton Palace Hotel, San Fran­ cisco, Calif. Write ASTM, 1916 Race St., Philadelphia, Pa. 19103. 16A C&EN FEB. 2, 1970

June 15-16. 3rd Conference on Cata­ lytic Hydrogénation and Analogous Pressure Reactions. Waldorf-Astoria Hotel, New York, N.Y. Write L. R. Neville, Associate Executive Director, New York Academy of Sciences, 2 East 63rd St., New York, N.Y. 10021. June 15-17. Cooling Tower Institute. Semiannual Meeting. Denver-Hilton, Denver, Colo. Write Dorothy Garrison, CTI, 4252 Richmond Ave., Houston, Tex. 77027. June 15-17. Chemical Marketing Research Association, joint meeting with European Chemical Marketing Research Association. Theme: Plastics and Plastic Additives. Amsterdam, Holland. Write Lawrence A. Wigdor, BASF Corp., 866 Third Ave., New York, N.Y. 10022. June 15-18. ACS Division of Polymer Chemistry. 5th Biennial Polymer Symposium. University of Akron, Akron, Ohio. Write H. L. Stephens, University of Akron Institute of Polymer Science, Akron, Ohio 44304. June 15-19. Gordon Research Conferences. Nuclear Chemistry. Colby College, New London, N.H. Nucleic Acids. New Hampton School, New Hampton, N.H. Lipid Metabolism. Kimball Union Academy, Meriden, N.H. Structural Aspects of Water and Aqueous Solutions. Tilton School, Tilton, N.H. Hydrocarbon Chemistry. Proctor Academy, Andover, N.H. Research at High Pressure. Holderness School, Plymouth, N.H. Plasma Physics. Providence Heights College, Issaquah, Wash. Write Dr. Alexander M. Cruickshank, Pastore Chemical Laboratory, University of Rhode Island, Kingston, R.I. 02881. June 15-19. International Vacuum Metallurgy Conference. Anaheim, Calif. Write on exhibits to E. F. Oswandel, Balzers High Vacuum Corp., 1305 East Wakeham, Box 10816, Santa Ana, Calif. 92711; for other inquiries, L. M. Bianchi, TRW, Inc., 23555 Euclid Ave., Cleveland, Ohio 44117. June 15-19. 18th Annual Technical Writers' Institute. Rensselaer Polytechnic Institute, Troy, N.Y. Write Jay R. Gould, Director, RPI, Troy, N.Y. 12181. June 15-20. 10th Conference on the Silicate Industry-SILICONF, 1970. Budapest, Hungary. Write Scientific Society for Silicate Industry, House of Engineering, P.O. Box 4 5 1 , Budapest, Hungary. June 16-18. European Organization for Quality Control. 14th Conference. Lausanne, Switzerland. Write c / o Afico, S.A., La Tour de Peilz 1814, Lausanne, Switzerland. June 17-19. International Symposium on Gustation and Olfaction. Firmenich & Cie. 75th Anniversary. Geneva, Switzerland. Write Dr. G. Obloff, P.O.B. 124, 1211 Geneva 8, Switzerland. June 17-19. Pulp and Paper Industry Technical Conference. Hotel Vancouver, Vancouver, B.C. Write H. L. Harkins, Brown & Roote, Inc., POB 3, Houston, Tex. 77001. June 17-19. ACS 23rd Annual Summer Symposium, Division of Analytical Chemistry. New Mexico State University, Las Cruces, N.M. Write R. G. Bates, Dept. of Chemistry, University of Florida, Gainesville, Fla. 32601.

June 17-19. Cryogenic Engineering Conference. Boulder, Colo. Write Dr. Joseph L. Smith, Jr., Rm. 41-204, MIT, Cambridge, Mass. 02139. June 17-24. 1970 ACHEMA. European Meeting of Chemical Engineering and the Exhibition and Congress of Chemical Engineering. Frankfurtam-Main, Germany. Write National Chemical Exposition, 86 East Randolph St., Chicago, III. 60601. June 18-19. 4th Great Lakes Regional Meeting of ACS. Fargo, N.D. Write Dr. Peter Pappas, Dept. of Chemistry, North Dakota State University, Fargo, N.D. 58102. June 18-19. ACS 25th Northwest Regional Meeting. Seattle, Wash. Write Dr. William S. Chilton, Dept. of Chemistry, University of Washington, Seattle, Wash. 98105. June 18-19. ACS Akron Section. Symposium on Anionic Polymerization. Ohio. Write Joginder Lai, Research Division, Goodyear Tire & Rubber Co., 142 Goodyear Blvd., Akron, Ohio 44316. June 18-19. Chemical Contaminants in Foods. Symposium. Skyline Hotel, Ottawa, Ont. Write H. B. Taylor, Technical Secretariat, Food and Drug Directorate, Tunney's Pasture, Ottawa, Ont. June 21-24. American Leather Chemists Association. 66th Annual Meeting. Lake Placid Club, Lake Placid, N.Y. Write Wm. T. Roddy, ALCA, c/o Campus Sta., Cincinnati, Ohio 45221. June 2 1 - 2 5 . American Electroplaters' Society. Annual Convention. Queen Elizabeth Hotel, Montreal, Que. Write AES, 56 Melmore Gardens, East Orange, N.J. 07017. June 2 1 - 2 6 . American Society of Testing and Materials. Annual Meeting & Exhibition. Royal York Hotel, Toronto, Ont. Write ASTM, 1916 Race St., Philadelphia, Pa. 19103. June 2 1 - 2 7 . 7th International Symposium on the Chemistry of Natural Products. Riga, Latvia. Write S. N. Ananchenko, General Secretary, Institute for Chemistry of Natural Products, Academy of Sciences of U.S.S.R., Ul. Vavilova 32, Moscow, U.S.S.R. June 22-24. American Association of Feed Microscopists. Annual Meeting. Bona Vista Hotel-Motel, Biloxi, Miss. Write G. M. Barnhart, AAFM, Bloomfield, Mo. 65063. June 22-24. ACS. 44th National Colloid Symposium. Lehigh University, Bethlehem, Pa. Write Dr. A. C. Zettlemoyer, Lehigh University, Bethlehem, Pa. 18015. June 22-24. ASTM Committee D-l on Paint, Varnish, Lacquer and Related Products. Toronto, Ont. Write ASTM, 1916 Race St., Philadelphia, Pa. 19103. June 22-25. American Society for Engineering Education. 78th Annual Meeting and Exhibit of Educational Resources. Ohio State University, Columbus, Ohio. Write John T. Straker, ASEE, Suite 400, One Du Pont Circle, Washington, D.C. 20036.

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June 2 2 - 2 5 . CIC-ACS Bioinorganic Symposium. VPI, Blacksburg, Va. Write CIC Dr. R. E. Dessy, Dept. of Chemistry, VPI, Blacksburg, Va. 24061. June 2 2 - 2 5 . ACS. 12th National Medi­ cinal Chemistry Symposium. Uni­ versity of Washington, Seattle, Wash. Write J. R. Dice, Parke-Davis Co., Ann Arbor, Mich. 48106. June 22-26. Gordon Research Conferences. Catalysis. Colby Junior Col­ lege, New London, N.H. Proteins. New Hampton School, New Hampton, N.H. Cell Structure and Metabolism. Kimball Union Academy, Meriden, N.H. Theoretical Chemistry. Tilton School, Tilton, N.H. Science and Technology of Biomaterials. Proctor Academy, Andover, N.H. Crystal Growth. Holderness School, Plym­ outh, N.H. Immunochemistry and Immunobiology. Providence Heights College, Issaquah, Wash. Write Dr. Alexander M. Cruickshank, Pastore Chemical Laboratory, University of Rhode Island, Kingston, R.I. 02881. June 2 3 - 2 5 . 4th Annual Conference on Trace Substances in Environ­ mental Health. University of Mis­ souri, Columbia, Mo. Wr/te Delbert D. Hemphill, 1-43 Agriculture Bldg., Columbia, Mo. 65201. June 24-26. Chlorine Institute. Spring Meeting. Seaview Country Club, Absecon, N.J. Write E. J. Laubusch, Chlorine Institute, 342 Madison Ave., New York, N.Y. 10017. June 24-26. Joint Automatic Control Conference. Atlanta, Ga. Wr/te D. W. Lyons, Sirrine Hall, Clemson Uni­ versity, Clemson, S.C. 29631. June 24-26. 3rd Canadian Wood Chemistry Symposium. Vancouver, B.C. Wr/te Dr. D. W. Clayton, Pulp & Paper Research Institute of Canada, 570 St. John's Rd., Pointe Claire, Que. June 24-28. Society of Women Engi­ neers. Annual Convention. Hotel Sonesta, Hartford, Conn. Write Mrs. Winifred D. White, Executive Secre­ tary, SWE, 345 East 47th St., New York, N.Y. 10017. June 28-July 2. American Nuclear So­ ciety. 16th Annual Meeting. ΒiItmore Hotel, Los Angeles, Calif. Write David G. Pettengill, ANS, 244 East Ogden Ave., Hinsdale, III. 60521.

June 28-July 4 . 4th International Con­ gress of Radiation Research. Inter­ national Association for Radiation Research. Evian, France. Wr/te Dr. J. F. Duplan, Fondation Curie, 26 rue d'Ulm, F-75-Paris 5, France. June 29-July 1. 17th Annual Sym­ posium on Microscopy, INTER/ MICRO-70. Sheraton-Blackstone Ho­ tel, Chicago, III. Wr/te INTER/ MICRO-70, McCrone Research Insti­ tute, 451 East 31st St., Chicago, III. 60616. June 29-July 3. Gordon Research Con­ ferences. Polymers. Colby Junior College, New London, N.H. Chemis­ try of Heterocyclic Compounds. New Hampton School, New Hampton, N.H. Enzymes, Coenzymes, and Metabolic Pathways. Kimball Union Academy, Meriden, N.H. Animal Cells and Viruses. Tilton School, Tilton, N.H. Lysosomes. Proctor Academy, An­ dover, N.H. Biochemistry in Agricul­ ture. Holderness School, Plymouth, N.H. Chemistry and Physics of Iso­ topes. Providence Heights College, Issaquah, Wash. Write Dr. Alexander M. Cruickshank, Pastore Chemical Laboratory, University of Rhode Is­ land, Kingston, R.I. 02881. July 1-3. 8th International Gel Per­ meation and Liquid Chromatography Seminar. Institute of Macromolecular Chemistry, Prague, Czecho­ slovakia. Write Philip W. Almquist, Waters Associates, Inc., 61 Fountain St., Framingham, Mass. 01701. July 5 - 7 . Conference on Rare Earths and Actinides. University of Durham, Durham, England. Write IP&PS, 47 Belgrave Sq. f London, S.W.I, England. July 6 - 9 . International Conference on Ferrites. Kyoto, Japan. Write Dr. Mitsui Sugimoto, Institute of Physical & Chemical Research, Yamatomachi, Saitama Prefecture, Japan. July 6 - 1 0 . Gordon Research Confer­ ences. Textiles. Colby Junior Col­ lege, New London, N.H. Statistics in Chemistry and Chemical Engineer­ ing. New Hampton School, New Hampton, N.H. Chemistry, Physi­ ology, and Structure of Bones and Teeth. Kimball Union Academy, Meriden, N.H. Chemistry and Phys­ ics of Space. Tilton School, Tilton, N.H. Developmental Biology. Proc­ tor Academy, Andover, N.H. High Temperature Chemistry. Providence Heights College, Issaquah, Wash. Write Dr. Alexander M. Cruickshank, Pastore Chemical Laboratory, Univer­ sity of Rhode Island, Kingston, R.I. 02881. July 6 - 1 0 . Society of Chemical Indus­ try. Annual Meeting. Imperial Col­ lege, London, England. Write The Chemical Society, Burlington House, London, W1V OBN, England. July 6 - 1 0 . Conference on Principles of Heterocyclic Synthesis. EUCHEM. St. Patrick's College, Maynooth, Ire­ land. Write Dr. R. S. McElhinney, Royal Irish Academy, 19 Dawson St., Dublin 2, Ireland. July 6 - 1 0 . Symposium on Progress in Safeguards Techniques. Karlsruhe, Germany. Sponsor, International Atomic Energy Agency. Write John H. Kane, U.S. AEC, Washington, D.C. 20545.

July 6 - 1 0 . Conference on Microwave Spectroscopy. University College, Bangor, Wales. Write IP&PS, 47 Belgrave Sq., London, S.W.I, England. July 6 - 1 2 . Society of Nuclear Medicine. 17th Annual Meeting. Sheraton Park Hotel, Washington, D.C. Write Mar­ garet Glos, SNM, 211 East 43rd St., New York, N.Y. 10017. July 7-10. International Conference on the Chemistry and Physics of Organic Scintillators and Liquid Scintillation Counting. University of California Medical Center, San Francisco, Calif. Write Dr. C. T., Peng, School of Phar­ macy, University of California, San Francisco Medical Center, San Fran­ cisco, Calif. 94122. July 7-10. International Symposium on Catalytic Oxidation. London, Eng­ land. Write Dr. John F. Gibson, The Chemical Society, Burlington House, London, W1V OBJ, England. July 7 - 1 1 . National Society of Profes­ sional Engineers. Annual Meeting. Portland Hilton Hotel, Portland, Ore. Write Paul H. Robbins, Executive Di­ rector, NSPE, 2029 Κ St., N.W., Wash­ ington, D.C. 20006. July 8 - 1 0 . Symposium on Nonaqueous Electrochemistry. IUPAC. Paris, France. Write Dr. J. Badoz-Lambling, Laboratoire de Chimie Analytique, ESPCI, 10 rue Vauquelin, Paris 5, France. July 8-12. International Society of Clinical Laboratory Technologists. Convention. Sheraton Blackstone Hotel, Chicago, III. Write ISCLT, 805 Ambassador Bldg., St. Louis, Mo. 63101. July 9-10. 9th Texas Water Pollution Control Association Conference. Uni­ versity of Houston, Houston, Tex. Write Dr. H. Nugent Myrick, Univer­ sity of Houston, Cullen College of Engineering, 3801 Cullen Blvd., . Houston, Tex. 77004. July 12-16. International Powder Met­ allurgy Conference. Sponsor, Metal Powder Industries Federation. Wal­ dorf-Astoria, New York, N.Y. Write Peter K. Johnson, MPIF, 201 East 42nd St., New York, N.Y. 10017. July 12-18. 3rd IUPAC Symposium on Photochemistry. St. Moritz, Switzer­ land. Write Dr. D. Bryce-Smith, Dept. of Chemistry, University of Reading, Whiteknights Park, Reading, England. July 13-15. 3rd National Symposium on Sanitary Engineering Research. Specialty Conference on Disinfection. University of Massachusetts, Am­ herst, Mass. Write Dr. Tsuan H. Feng, Dept. of Civil Engineering, Uni­ versity of Massachusetts, Amherst, Mass. 01002. July 13-17. Gordon Research Confer­ ences. Scientific Information Prob­ lems in Research. Colby Junior Col· lege, New London, N.H. Radiation Chemistry. New Hampton School, New Hampton, N.H. Structural Macromolecules. Kimball Union Academy, Meriden, N.H. Radical Ions. Tilton School, Tilton, N.H. Polymer Physics. Proctor Academy, Andover, N.H. Molecular Pathology. Providence Heights College, Issa­ quah, Wash. Write, Dr. Alexander Cruickshank, Pastore Chemical Lab­ oratory, University of Rhode Island, Kingston, R.I. 02881. FEB. 2, 1970 C&EN 17A

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July 14-16. International Symposium on Yfides. Leicester, England. Write Dr. John F. Gibson, The Chemical Society, Burlington House, London W.l vOBN England. July 19-24. American Association of Clinical Chemists. 22nd National Meeting. Statler Hilton Hotel, Buf­ falo, N.Y. Write Dr. Desider A. Pragay, Meyer Memorial Hospital Divi­ sion, 462 Grider St., Buffalo, N.Y. 14215. July 20-24. ACS. International Sym­ posium on Chemical Education. As­ pen, Colo. Write Dr. William B. Cook, Colorado State University, Fort Collins, Colo. 80521. July 20-24. Gordon Research Conferences. Elastomers. Colby Junior College, New London, N.H. Organic Reactions and Processes. New Hampton School, New Hampton, N.H. Chemistry at Interfaces. Kimball Union Academy, Meriden, N.H. Bio­ logical Regulatory Mechanisms. Tilton School, Tilton, N.H. Physical Acoustics. Proctor Academy, Andover, N.H. Chemistry and Biology of Pyrrole Compounds. Providence Heights College, Issaquah, Wash. Write Dr. Alexander M. Cruickshank, Pastore Chemical Laboratory, Univer­ sity of Rhode Island, Kingston, R.I. 02881. July 20-24. International Conference on the Mechanisms of Reactions in Solution. University of Kent, Canter­ bury, England. Write Dr. John F. Gibson, The Chemical Society, Bur­ lington House, London W1V, OBN, England. July 2 1 - 2 3 . Annual Northeast Regional Antipollution Conference. University of Rhode Island, Kingston, R.I. Write C. J. Wilson, Bliss Hall, University of Rhode Island, Kingston, R.I. 02881. July 22-24. International Aerospace Fluid Power Conference. Mitchell Field, Milwaukee, Wis. Write G. Toohey, Fluid Power Society, P.O. Box 905, Elm Grove, Wis. 53122. July 26-Aug. 1 . 5th International Con­ ference on Water Pollution Research. San Francisco, Calif. Sponsors, ACS, AlChE, et a/. Write W. W. Eckenfelder, Jr., University of Texas, Austin, Tex. 79112. 18A C&EN FEB. 2, 1970

July 2 7 - 3 1 . Gordon Research Confer­ ences. Corrosion. Colby Junior Col­ lege, New London, N.H. Steroids and Other Natural Products. New Hampton School, New Hampton, N.H. Toxicology and Safety Evaluations. Kimball Union Academy, Meriden, N.H. Nuclear Structure Physics. Tilton School, Tilton, N.H. Dielectric Phenomena. Proctor Academy, Andover, N.H. Dynamics of Quantum Solids and Fluids. Providence Heights College, Issaquah, Wash. Write Dr. Alexander M. Cruickshank, Pastore Chemical Laboratory, Univer­ sity of Rhode Island, Kingston, R.i. 02881. July 2 8 - 2 9 . National Fertilizer Solu­ tions Association. Annual Conven­ tion & Trade Show. Fort Des Moines Hotel, Des Moines, Iowa. Write W. Harold Schelm, NFSA, 910 Lehmann Bldg., Peoria, III. 61602. July 2 8 - 3 0 . International Symposium on Nonaqueous Solvents. Man­ chester, England. Write The Chemi­ cal Society, Burlington House, Lon­ don, W1V OBN, England. Aug. 3 - 4 . 12th Annual Rocky Mountain Spectroscopy Conference. Albany Hotel, Denver, Colo. Write Joseph Haffty, U.S. Geological Survey, Fed­ eral Center, Bldg. 25, Denver, Colo. 80225. Aug. 3 - 4 . American Society of Safety Engineers. Professional Conference. University of California, San Diego, Calif. Write A. C. Blackman, Manag­ ing Director, American Society of Safety Engineers, 850 Busse Hwy., Park Ridge, III. 60068. Aug. 3 - 7 . Gordon Research Confer­ ences. Food and Nutrition. Colby Junior College, New London, N.H. Inorganic Chemistry. New Hampton School, New Hampton, N.H. Solid State Studies in Ceramics. Kimball Union Academy, Meriden, N.H. Phys­ ics and Physical Chemistry of Biopolymers. Tilton School, Tilton, N.H. Biomathematics. Proctor Academy, Andover, N.H. Heart Muscle. Holderness School, Plymouth, N.H. Nonlinear Optic Effects. Providence Heights College, Issaquah, Wash. Write Dr. Alexander M. Cruickshank, Pastore Chemical Laboratory, Univer­ sity of Rhode Island, Kingston, R.I. 02881.

Aug. 9 - 1 2 . So/7 Conservation Society of America. 25th Annual Meeting. York University, Toronto, Ont. Write SCSA, 7515 N.E. Ankeny Rd., Ankeny, Iowa 50021. Aug. 9 - 1 4 . 3rd International Congress of Food Science and Technology. Washington, D.C. Write Institute of Food Technologists, 221 North LaSalle St., Chicago, III. 60601. Aug. 10-14. Gordon Research Confer­ ences. Medicinal Chemistry. Colby Junior College, New London, N.H. Electron Donor-Acceptor Interactions. New Hampton School, New Hampton, N.H. Chemistry and Physics of Sol­ ids. Kimball Union Academy, Meri­ den, N.H. Friction, Lubrication, and Wear. Tilton School, Tilton, N.H. Particle-Solid Interactions. Holder­ ness School, Plymouth, N.H. Write Dr. Alexander M. Cruickshank, Pas­ tore Chemical Laboratory, University of Rhode Island, Kingston, R.I. 02881. Aug. 1 6 - 2 1 . American Crystallographic Association. Annual Meeting. Carleton University, Ottawa, Ont. Write Ethel E. Snider, American Institute of Physics, 335 East 45th St., New York, N.Y. 10017. Aug. 17-19. American Peptide Sym­ posium. Cleveland, Ohio. Write Dr. Robert R. Smeby, Cleveland Clinic Foundation, 2020 East 93rd St., Cleveland, Ohio 44106. Aug. 17-19. American Soybean Asso­ ciation. 50th Annual Convention. Leamington Hotel, Minneapolis, Minn. Write Chet Randolph, Executive V.P., American Soybean Association, Hud­ son, Iowa 50643.

Aug. 5 - 7 . Association of American Feed Control Officials. 60th Annual Convention. Executive Inn Motor Ho­ tel, Louisville, Ky. Write AAFCO, Ag­ ricultural Experiment Station, Univer­ sity of Kentucky, Lexington, Ky. 40506.

Aug. 17-19. CIC Symposium on Trace Analysis. Edmonton, Alta. Write J. A. Plamdeck, Dept. of Chemistry, University of Alberta, Edmonton, Alta. Aug. 1 7 - 2 1 . Gordon Research Confer­ ences. Hormone Action. Colby Jun­ ior College, New London, N.H. Chemistry and Physics of Cellular Ma­ terials. New Hampton School, New Hampton, N.H. Infrared Spectros­ copy. Kimball Union Academy, Meriden, N.H. Thin Films. Tilton School, Tilton, N.H. Metals and Metal Binding in Biology. Holder­ ness School, Plymouth, N.H. Write Dr. Alexander M. Cruickshank, Pas­ tore Chemical Laboratory, University of Rhode Island, Kingston, R.I. 02881. Aug. 17-22. 5th International Sym­ posium on Carbohydrate Chemistry. Paris, France. Write F. Percheron, 4, ave. de l'Observatoire, 75, Paris VI, France. Aug. 18-26. CHEMECA 70. Chemical Engineering Conference. Melbourne and Sydney, Australia. Write Secre­ tary, Australian Academy of Science, Gordon St., Canberra, A.C.T. 2600, Australia. Aug. 18-27. 4th Quinquennial Inter­ national Wool Textile Conference. University of California, Berkeley, Calif. Write Wool & Mohair Lab­ oratory, USDA, 800 Buchanan St., Albany, Calif. 94710.

Aug. 5 - 7 . 19th Annual Denver Confer­ ence on Applications of X-Ray Analy­ sis. Albany Hotel, Denver, Colo. Write J. B. Newkirk, Dept. of Metal­ lurgy, University of Denver, Denver, Colo. 80210.

Aug. 2 3 - 2 7 . American Society for Phar­ macology & Experimental Therapeu­ tics. Annual Meeting. Stanford, Calif. Write Dr. Lewis Aronow, Stan­ ford University School of Medicine, Stanford, Calif. 94305.

Aug. 3 - 1 4 . Institute of Paper Chemis­ try. 8th Conference on Chemicals and Paper. Write T. A. Howells, Di­ rector of Continuing Education, Insti­ tute of Paper Chemistry, Box 1048, Appleton, Wis. 54911. Aug. 4 - 7 . Western Electronic Show and Convention (WESCON). Los Angeles, Calif. Write Don Larson, WESCON General Manager, 3600 Wilshire Blvd., Los Angeles, Calif. 90005.

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Aug. 2 3 - 2 8 . Soil Science Society of America. Annual Meeting. University of Arizona, Tucson, Ariz. Write SSSA, 677 South Segoe Rd., Madison, Wis. 53711. Aug. 23-29. 13th International Symposium on Combustion. University of Utah, Salt Lake City, Utah. Write Combustion Institute, 986 Union Trust Bldg., Pittsburgh, Pa. 15219. Aug. 23-29. American Institute of Biological Sciences. 21st Annual Meeting. Indiana University, Bloomington, Ind. Write Ann F. Kulback, A|BS, 3900 Wisconsin Ave., N.W., Washington, D.C. 20016. Aug. 24-26. TAPPI Conference on Operations Research. Bonaventure Hotel, Montreal, Que. Write TAPPI, 360 Lexington Ave., New York, N.Y. 10017. Aug. 24-26. International Conference on Radiation Effects in Semiconductors. Albany, N.Y. Write J. W. Corbett, Physics Dept., SUNY, Albany, N.Y. 12203. Aug. 24-27. 2nd Inter-American Conference on Materials Technology. Mexico City, Mexico. Write David L. Black, Symposium Coordinator, Southwest Research Institute, P.O. Drawer 28510, San Antonio, Tex. 78228. Aug. 24-27. 3rd Analytical Conference. Budapest, Hungary. Write Hungarian Chemical Society, Szabadsag Ter 17, Budapest V, Hungary. Aug. 24-28. Gordon Research Conferences. Cancer. Colby Junior College, New London, N.H. Science of Adhesion. New Hampton School, New Hampton, N.H. Chemistry and Physics of Paper. Kimball Union Academy, Meriden, N.H. Physical Metallurgy. Tilton School, Tilton, N.H. Cyclic AMP. Holderness School, Plymouth, N.H. Write Dr. Alexander M. Cruickshank, Pastore Chemical Laboratory, University of Rhode Island, Kingston, R.I. 02881. Aug. 24-28. International Symposium on the Chemistry of Nonbenzenoid Aromatic Compounds. Chemical Society of Japan. Sendai, Japan. Write Sho Ito, Dept. of Chemistry, Tohoku University, Sendai, Japan.

Aug. 24-28. 3rd International Liquid Crystal Conference. Berlin, West Germany. Write Dr. Glenn H. Brown, Liquid Crystal Institute, Kent State University, Kent, Ohio 44240. Aug. 2 5 - 2 8 . Western Electronic Show and Convention (WESCON). Los Angeles, Calif. Write Don Larson, WESCON General Manager, 3600 Wilshire Blvd., Los Angeles, Calif. 90005. Aug. 2 6 - 2 9 . 2nd International Conference on Small-Angle X-Ray Scattering. Graz, Austria. Write O. Kratky, Institute for Physical Chemistry, University of Graz, Heinrichstrasse 28, A-8010 Graz. Aug. 26-Sept. 2. 4th International Conference on Magnetic Resonance in Biological Systems. (A NATO Advanced Study Institute) St. Catherine's College, Oxford, England. Write R. E. Richards, Physical Chemistry Laboratory, South Parks Rd., Oxford, England. Aug. 30-Sept. 2. American Institute of Chemical Engineers and Instituto Mexicano de Ingénieros Quimicos. Third Joint Meeting. Hilton Hotel, Denver, Colo. Write Richard Glover, AlChE, 345 East 47th St., N.W., New York, N.Y. 10017. Aug. 31-Sept. 2. South African Institute of Chemical Engineers. First National Meeting. Write R. G. Shuttleworth, South African Embassy, Office of the Scientific Counsellor, 3051 Massachusetts Ave., N.W., Washington, D.C. 20008. Aug. 31-Sept. 2. Symposium on Heteroatom Chemistry. Chemical Institute of Canada Organic Division. London, Ont. Write D. H. Hunter, Dept. of Chemistry, University of Western Ontario, London, Ont. Aug. 31-Sept. 4. Gordon Research Conferences. Separation and Purification. Colby Junior College, New London, N.H. Environmental Sciences: Water. New Hampton School, New Hampton, N.H. Lasers in Medicine and Biology. Kimball Union Academy, Meriden, N.H. Metal-lnsulator-Semiconductor Systems. Tilton School, Tilton, N.H. Geochemistry. Holderness School, Plymouth, N.H. Write Dr. Alexander M. Cruickshank, Pastore Chemical Laboratory, University of Rhode Island, Kingston, R.I. 02881. Aug. 31-Sept. 4. Triennial International Mass Spectrometry Conference. Brussels, Belgium. Write P. Goldfinger, Service de Chimie Physique I, Faculté des Sciences, Université Libre de Bruxelles, 50 av. F.D. Roosevelt, Brussels 5, Belgium. Aug. 31-Sept. 4. Conference on Dynamics of Molecular Collisions. Oak Ridge, Tenn. Write E. F. Greene, Dept. of Chemistry, Brown University, Providence, R.I. 02912. Aug. 31-Sept. 5. 4th International Heat Transfer Conference. Paris, France. Write S. P. Kezios, School of Mechanical Engineering, Georgia Tech, Atlanta, Ga. 30332. Aug. 31-Sept. 5. International Congress of Pharmaceutical Sciences. Geneva, Switzerland. Write J. Polderman, Uhlenbekkade 4, Leiden, the Netherlands.

Sept. 3 - 9 . 8th International Congress of Biochemistry. International Union of Biochemistry. Lucerne, Interlaken, and Montreux, Switzerland. Write R. A. Harte, 9650 Rockville Pike, Bethesda, Md. 20014. Sept. 3-24. National Association of Metal Finishers. Biennial Trade Tour/Conference. Spain, West Germany, Switzerland. Write P. Peter Kovatis, NAMF, 248 Lorraine Ave., Upper Montclair, N.J. 07043. Sept. 7-10. Symposium on Cycloaddition Reactions. IUPAC. Munich, Germany. Write Dr. W. Fritsche, Gesellschaft Deutscher Chemiker, 6000 Frankfurt (M), Postfach 11 90 75, Germany. Sept. 7 - 1 1 . 6th International Symposium on Microtechniques. IUPAC et al. Graz, Austria. Write H. Malissa, Institut fur Analytische Chemie und Mikrochemie, Technische Hochschule Wien, Getreidemarkt 9, A-1060 Vienna, Austria. Sept. 7 - 1 1 . 6th International Cybernetics Congress. Namur, Belgium. Write Secretariat, International Cybernetics Association, Palais des Expositions, Place Andre Rijckmans, Namur, Belgium. Sept. 7 - 1 1 . 2nd International Codata Conference. St. Andrews, Scotland. Write Ν. Η. Robinson, British Na­ tional Committee on Data for Science and Technology, The Royal Society, 6, Carlton House Terrace, London, S.W.I, England. Sept. 7 - 1 1 . Society for Experimental Biology. Symposium. Wye, Eng­ land. Write Dr. A. P. M. Lockwood, Dept. of Oceanography, University of Southampton, Southampton, Eng­ land. Sept. 7-12. 3rd International Congress on Hormonal Steroids. Hamburg, Germany. Write II Medizinische Universitats-Klinik und Poliklinik, Universitats Krankenhaus Eppendorf, 2 Hamburg 20, Germany. Sept. 7-15. Symposium on Hydrogeochemistry and Hydrobiochemistry. Tokyo, Japan. Write K. Sugawara, In­ stitute of Chemistry, Faculty of Sci­ ences, Nagoya University, Nagoya, Japan. Sept. 8 - 1 1 . 2nd International Confer­ ence on Molecular Sieve Zeolites. ACS Divisions and Worcester Poly­ technic Institute. Worcester, Mass. Write Dr. Leonard B. Sand, Wor­ cester Polytechnic Institute, Wor­ cester, Mass. 01609. Sept. 8 - 1 2 . Symposium on Molecular Structure and Spectroscopy. Silver Jubilee. Ohio State University, Co­ lumbus, Ohio. Write K. Narahari Rao, Dept. of Physics, Ohio State University, Columbus, Ohio 43210. Sept. 9 - 1 0 . CIC Symposium on Recent Advances in the Formulation and Properties of Polymeric Composites. McGill University, Montreal, Que. Write Dr. A. Eisenberg, Dept. of Chem­ istry, McGill University, Montreal, Que. Sept. 9 - 1 1 . Symposium on Advanced Experimental Techniques in the Me­ chanics of Materials. El Tropicano Hotel, San Antonio, Tex. Write Ulric Lindholm, Southwest Research Insti­ tute, P.O. Box 28510, San Antonio, Tex. 78228. FEB. 2, 1970 C&EN

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Sept. 9 - 1 8 . International Congress on Scientific Information. Annual Con­ ference. Buenos Aires, Argentina. Write USNCFID Secretariat, National Academy of Sciences, 2101 Consti­ tution Ave., N.W., Washington, D.C. 20418. Sept. 10-24. International Specialized Exhibition "Chemistry-70." Moscow, U.S.S.R. Write Department of Inter­ national and Foreign Exhibitions, Moscow, U.S.S.R. Sept. 11-13. International Conference on Particle Size Analysis. Bradford, England. Write Dr. V. T. Crowl, So­ ciety for Analytical Chemistry, 9 / 1 0 Savile Row, London, W . l , England. Sept. 13-16. American Ceramic So­ ciety Ceramic-Metal Systems Division. Bedford Springs Hotel, Bedford, Pa. Wr/te American Ceramic Society, 4055 North High St., Columbus, Ohio 43214. Sept. 13-17. 2nd International Con­ ference on Raman Spectroscopy. Ox­ ford, England. Wr/te D. A. Long, University of Bradford, Bradford 7, Yorkshire, England. Sept. 13-18. ACS 160th Meeting. Chicago, III.

National

Sept. 14-16. Canadian Agricultural Chemicals Association. 18th Annual Meeting and Conference. Jasper, Alta. Wr/te Paul Tree, CACA, 1010 St. Catherine St., West, Montreal 2, Que. Sept. 14-16. ASTM Committee B-5 on Copper and Copper Alloys. Dear­ born Inn & Motor House, Dearborn, Mich. Write ASTM, 1916 Race St., Philadelphia, Pa. 19103. Sept. 14-16. Space Simulation Con­ ference. National Bureau of Stand­ ards, Gaithersburg, Md. Write J. C. Richmond, Rm. B126, Metrology Bldg., NBS, Washington, D.C. 20234. Sept. 14-16. Conference on Photoelectron Spectroscopy. Oxford, Eng­ land. Write IP&PS, 47 Belgrave Sq., London, S.W.I, England. Sept. 14-17. 3rd European Fluorine Chemistry Symposium. Aix-en-Provence, France. Write J. Chatelet, DPC/BHU Cen Saclay, B. P. No. 2 — 91 Gif sur Yvette, France. Sept. 14-17. 3rd European Symposium on Corrosion Inhibitors. Ferrara, Italy. Write 3 SEIC, Istituto Chimico, Universita Degli Studi, Via Scandiana 25, 44100 Ferrara, Italy. 20A C&EN FEB. 2, 1970

Sept. 14—18. Physics of Noncrystalline Solids III. University of Sheffield, England. Write IP&PS, 47 Belgrave Sq., London, S.W.I, England. Sept. 14-18. IUPAC & International Union of Crystallography. Interna­ tional Symposium on Organic SolidState Chemistry. Rehovoth, Israel. Write M. D. Cohen, Weizmann Insti­ tute of Science, Rehovoth, Israel. Sept. 14-22. 13th International Con­ ference on Coordination Chemistry. Krakow and Zakopane, Poland. Write Organizing Committee of XIII ICCC, University of Wroclaw, PI. Uniwersytecki 1, Wroclaw, Poland. Sept. 14—24. Conference and Congress of International Federation for Docu­ mentation (FID). Buenos Aires, Ar­ gentina. Write U.S. National Com­ mittee for FID, National Academy of Sciences, 2101 Constitution Ave., Washington, D.C. 20418. Sept. 15-17. Conference on Inorganic Pure and Applied Chemistry. Cluj, Romania. Write Institutul de Chimie, Str. Donath, 59-65, Cluj, Romania. Sept. 15-18. 14th National Chemical Exposition. Sponsor, ACS Chicago Section. Conrad Hilton Hotel, Chi­ cago, III. Write James J. Doheny, 86 East Randolph St., Chicago, III. 60601. Sept. 16-17. 6th Annual National Con­ ference on Industrial Research. Mu­ seum of Science & Industry, Chicago, III. Write Dr. Victor J. Danilov, Chair­ man, NCIR, Industrial Research Bldg., Beverly Shores, Ind. 46301. Sept. 16-19. American Ceramic So­ ciety. Structural Clay Products Divi­ sion. Denver Hilton Hotel, Denver, Colo. Write American Ceramic So­ ciety, 4055 North High St., Colum­ bus, Ohio 43214. Sept. 2 0 - 2 5 . 6th Congress of Interna­ tional Federation of Societies of Cos­ metic Chemists. Barcelona, Spain. Write Shirley Ann DeRagon, SCC, PR Chairman, Amerchol Park, Talmadge Rd., Edison, N.J. 08817. Sept. 2 1 - 2 3 . TAPPI 21st Testing Con­ ference. Pick-Nicollet Hotel, Minne­ apolis, Minn. Write TAPPI, 360 Lex­ ington Ave., New York, N.Y. 10017. Sept. 2 1 - 2 5 . 5th Intersociety Energy Conversion Engineering Conference (ENERGY 70). Las Vegas, Nev. Write ENERGY-70, Box 9123, Albu­ querque, N.M. 87119. Sept. 2 2 - 2 4 . Canadian Chemical & Process Equipment Exhibition. To­ ronto, Ont. Write James T. S. Creighton, Show Mgr., P.O. Box 1010, Sta. B, Toronto 2B, Ont. Sept. 2 2 - 2 5 . Société de Chimie Physique. 21st International Meeting. Reaction Transition States. Paris, France. Write C. Troyanowsky, 10, Rue Vauquelin 75, Paris 5e, France. Sept. 2 4 - 2 5 . Textile Quality Control Association. Fall Meeting. Jefferson Davis Hotel, Montgomery, Ala. Write William J. Martin, P.O. Box 147, Clemson, S.C. 29631. Sept. 2 4 - 2 6 . Drug, Chemical & Allied Trades Association. 80th Annual Meeting. Pocono Manor Inn, Pocono Manor, Pa. Write Helen L. Booth, DCATA, Empire State Bldg., Suite 3014, 350 Fifth Ave., New York, N.Y. 10001.

Sept. 2 7 - 3 0 . National Agricultural Chemicals Association. Annual Meeting. The Greenbrier, White Sulphur Springs, W.Va. Write Denis Hayley, NACA, Madison Bldg., 1155—15th St., N.W. Washington, D.C. 20005. Sept. 2 7 - 0 c t . 1. American Oil Chemists' Society and International Society for Fat Research. World Congress. Chicago, III. Write AOCS, 35 East Wacker Dr., Chicago, III. 60601. Sept. 2 8 - 3 0 . Faraday Society. Special Discussion on Thin Liquid Films and Boundary Layers. University of Cambridge, Cambridge, England. Write Faraday Society, 6 Gray's Inn Sq., London, W.C.I, England. Sept. 2 8 - 3 0 . TAPPI 25th Conference on Plastic Papers. Syracuse, N.Y. Write TAPPI, 360 Lexington Ave., New York, N.Y. 10017. Sept. 28-Oct. 2. 8th International Symposium on Gas Chromatography. Dublin, Ireland. Write C. H. Maynard, Institute of Petroleum, 61 New Cavendish St., London W.l.M. 8AR, England. Sept. 28-Oct. 2. Comité International de Thermodynamique et de Cinétique Electrochemiques (CITCE). 21st Meeting. Prague, Czechoslovakia. Write Dr. H. Ta η nen berger, Institut Battelle, 7, route de Drize, CH-1227 Carouge, Geneva, Switzerland. Sept. 2 9 - 0 c t . 1. Conference on Ad­ vances in Polymer Science & Tech­ nology III: Chemistry of Liquid Poly­ mers and Thermoplastic Copolymers. London, England. Write R. H. Craven, Institution of Rubber Indus­ try, 4 Kensington Palace Gardens, London W. 8, England. Sept. 30-Oct. 3. American Ceramic Society. Materials & Equipment and White Wares Divisions. Bedford, Pa. Write American Ceramic Society, 4055 Noith High St., Columbus, Ohio 43214. Oct. 4 - 8 . 9th International Gel Per­ meation Chromatography Seminar. Eden Roc Hotel, Miami Beach, Fla. Write Philip W. Almquist, Waters As­ sociates, Inc., 61 Fountain St., Framingham, Mass. 01701. Oct. 4 - 8 . American Petroleum Insti­ tute. Autumn Meeting, Division of Refining. Brown Palace, Denver, Colo. Write A. A. Mulliken, Jr., API, 1271 Avenue of the Americas, New York, N.Y. 10020. Oct. 4 - 9 . Electrochemical Society. 138th National Meeting. ChalfonteHaddon Hall, Atlantic City, N.J. Write Ernest G. Enck, Electrochemical Society, 30 East 42nd St., New York, N.Y. 10017. Oct. 4 - 9 . Water Pollution Control Fed­ eration. Boston, Mass. Write Edi­ tor, Rm. N-400, 3900 Wisconsin Ave., N.W., Washington, D.C. 20016. Oct. 5 - 7 . 3rd International Symposium on Gallium Arsenide and Related Compounds. Aachen, Germany. Write Symposium on Gallium Arse­ nide, Technische Hochschule Aachen, 5100 Aachen/Germany, Templergraben 55. Oct. 5 - 7 . Packaging Institute. 32nd Annual National Packaging Forum. The Marriott, Chicago, III. Write Chas. A. Feld, Executive Director, Packaging Institute, 342 Madison Ave., New York, N.Y. 10017.

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Oct. 5 - 8 . American Council of Inde­ pendent Laboratories. Annual Meet­ ing. Statler-Hilton, Cleveland, Ohio. Write ACIL, 1026 17th St., N.W., Washington, D.C. 20036. Oct. 5-8. TAPPI Conference on Sec­ ondary Fibers. Pick-Nicollet Hotel, Minneapolis, Minn. Write TAPPI, 360 Lexington Ave., New York, N.Y. 10017. Oct. 5 - 9 . 2nd Newsprint Conference. Skyline Hotel, Ottawa, Ont. Write Canadian Pulp & Paper Association, 2300 Sun Life Bldg., Montreal 110, Que. Oct. 5 - 9 . American Dietetic Associa­ tion. Annual Meeting. Cleveland, Ohio. Write Demi Costas, PR Direc­ tor, ADA, 620 North Michigan Ave., Chicago, III. 60611. Oct. 5-10. Society for Applied Spec­ troscopy. National Meeting. New Orleans, La. Write Dr. James Robin­ son, Chemistry Dept., Louisiana State University, Baton Rouge, La. 70803. Oct. 6. Chemistry Day with Festive Meeting of Gesellschaft Deutscher Chemiker at 106th Assembly of Ger­ man Society of Natural Scientists & Physicians. Dusseldorf, Germany. Write Gesellschaft Deutscher Chemi­ ker, 6000 Frankfurt (M), Germany, Postfach 11 90 75. Oct. 6 - 9 . ACS Western Regional Meet­ ing. Joint with Society of Applied Spectroscopy and Optical Society of America. Write Dr. Glenn Allen, Dow Chemical Co., 2800 Mitchell Dr., Walnut Creek, Calif. 94596. Oct. 6 - 9 . Phytochemical Society of North America. 10th Annual Meet­ ing. Symposium on Functional and Structural Aspects of Phytochemistry. University of Maryland. Write Cor­ nelius Steelink, University of Arizona, Tucson, Ariz. 85721. Oct. 6 - 9 . 4th International Conference on Plutonium and Other Actinides. Santa Fe, N.M. Write F. W. Schonfeld, Los Alamos Scientific Labora­ tory, Los Alamos, N.M. 87544. Oct. 7 - 8 . Industrial Coal Conference. Purdue University, Lafayette, Ind. Write Carl Jenks, Purdue University, Lafayette, Ind. 47907. Oct. 8-10. American Ceramic Society. Refractories Division. Bedford Springs Hotel, Bedford, Pa. Write American Ceramic Society, 4055 North High St., Columbus, Ohio 43214. Oct. 8-10. Conference on Biochem­ istry. Bucharest, Romania. Institutul de Biochimie, Str. Docentilor No. 20, Bucharest, Romania. Oct. 11-14. American Society for In­ formation Science. 33 rd Annual Meeting. Philadelphia Sheraton, Phil­ adelphia, Pa. Write Dr. Eugene Gar­ field, ISI, 325 Chestnut St., Philadel­ phia, Pa. 19106.

Oct. 11-14. TAPPI Finishing Confer­ ence. Sheraton Eastland, Portland, Me. Write TAPPI, 360 Lexington Ave., New York, N.Y. 10017. Oct. 11-14. ASTM Committee E-19 on Gas Chromatography. Brown Palace, Denver, Colo. Write ASTM, 1916 Race St., Philadelphia, Pa. 18103 Oct. 12-13. Association of Earth Sci­ ence Editors. 4th Conference. ACS Headquarters, Washington, D.C. Write W. D. Rose, AESE Secretary, Kentucky Geological Survey, Lexing­ ton, Ky. 40507. Oct. 12-15. Association of Official Ana­ lytical Chemists. 84th Annual Meet­ ing. Marriott Motor Hotel, Twin Bridges, Washington, D.C. 20001. Write L. G. Ensminger, Executive Sec­ retary, AOAC, Box 540, Benjamin Franklin Sta., Washington, D.C. 20044. Oct. 12-16. ASTM Committee D-13 on Textile Materials. Belmont-Plaza, New York, N.Y. Write ASTM, 1916 Race St., Philadelphia, Pa. 19103. Oct. 13-14. Industrial Hygiene Foun­ dation. 35th Annual Meeting. Chat­ ham Center, Pittsburgh, Pa. Write Dr. Robert T. P. deTreville, IHF, 5231 Centre Ave., Pittsburgh, Pa. 15232. Oct. 13-15. American Society of Lubri­ cation Engineers. Lubrication Con­ ference. Netherland Hilton Hotel, Cincinnati, Ohio. Write Mrs. R. E. McDonald, 838 Busse Hwy, Park Ridge, III. 60068. Oct. 13-15. 2nd International Confer­ ence on Ozone. ACS and NT Re­ search Institute. Chicago, III. Write Charles K. Hersh, NT Research Insti­ tute, 10 West 35th St., Chicago, III. 60616. Oct. 14-16. American Ceramic Society. Glass Division. Bedford Springs Ho­ tel, Bedford, Pa. Write American Ce­ ramic Society, 4055 North High St., Columbus, Ohio 43214. Oct. 15-16. Fiber Society. Fall Meet­ ing. Baltimore, Md. Write Ludwig Rebenfeld, Secretary-Treasurer, Fiber Society, Textile Research Institute, Box 625, Princeton, N.J. 08540. Oct. 17-20. American Coke & Coal Chemicals Institute. Annual Meet­ ing. The Greenbrier, White Sulphur Springs, W.Va. Write L. M. Ferguson, Executive Secretary, AC&CCI, 1010— 16th St., N.W., Washington, D.C. 20036. Oct. 1 8 - 2 1 . Canadian Manufacturers of Chemical Specialties Association. 13th Annual Meeting and Conference. Skyline Hotel, Ottawa, Ont. Write CMCSA, 1010 St. Catherine St. West, Suite 1004, Montreal 2, Que. Oct. 18-22. Society for Experimental Stress Analysis. Fall Meeting and Exposition. Marriott Motor Hotel, Boston, Mass. Write SESA, 21 Bridge Sq., Westport, Conn. 06880. Oct. 18-22. American Association of Cereal Chemists, 55th Annual Meeting, Minneapolis, Minn. Write AACC, 1821 University Ave., St. Paul, Minn. 55104. Oct. 1 9 - 2 1 . ACS Northeast Regional Meeting. Biltmore Hotel, Provi­ dence, R.I. Write Dr. Melvin A. Lipson, Philip A. Hunt Chemical Co., Lincoln, R.I. 02865.

Oct. 1 9 - 2 1 . Inter science Conference on Antimicrobial Agents and Chemo­ therapy. Chicago, III. Write R. W. Sarber, American Society for Micro­ biology, 1913 Eye St., N.W., Wash­ ington, D.C. 20006. Oct. 1 9 - 2 1 . 20th Canadian Chemical Engineering Conference. Canadian Society for Chemical Engineering. Sarnia, Ont. Write R. M. Butler, Im­ perial Oil Enterprises, Ltd., Sarnia, Ont. Oct. 19-22. American Society for Metals. Materials Engineering Con­ gress & Exposition and Powder Metal­ lurgy Conference. Cleveland, Ohio. Write ASM, Metals Park, Ohio 44073. Oct. 19-22. American Society for Non­ destructive Testing. 30th National Fall Conference. Hollenden House, Cleveland, Ohio. Write Philip D. Johnson, ASNT, 914 Chicago Ave., Evanston, III. 60202. Oct. 19-23. 2nd International Confer­ ence and Exposition on Liquefied Nat­ ural Gas. Maison de la Chimie, Paris, France. Write B. Schukraft, Institute of Gas Technology, 3424 South State St., NT Center, Chicago, III. 60616. Oct. 2 0 - 2 2 . 7th International Rein­ forced Plastics Conference. London, England. Write British Plastics Fed­ eration, 4 7 / 4 8 Piccadilly, London, W . l , England. Oct. 2 0 - 2 3 . American Vacuum Society. 17th Annual Symposium. SheratonPark Hotel, Washington, D.C. Write J. R. Young, General Electric Co., P.O. Box 8, Schenectady, N.Y. 12301. Oct. 2 0 - 2 3 . ACS Division of Rubber Chemistry. Chicago, III. Write F. M. O'Connor, Harwick Standard Chemical Co., 60 South Seiberling St., Akron, Ohio 44305. Oct. 2 1 - 2 2 . World Future Technical and Commercial Developments of the Soaps, Detergents and Surfactants Industries. Brussels, Belgium. Write International Business Contact Club i.b./c.c. 99 Ave. Nouvelle, Brussels 4, Belgium. Oct. 21-23. AIME World Lead-Zinc Symposium. St. Louis, Mo. Write John C. Fox, Society of Mining Engi­ neers of AIME, 345 East 47th St., New York, N.Y. 10017. Oct. 2 5 - 2 7 . Toilet Goods Association. Scientific Conference. Shoreham Ho­ tel, Washington, D.C. Write Alan A. Wheeler, TGA, 1625 Eye St., N.W., Washington, D.C. 20006. Oct. 25-28. National Lubricating Grease Institute. Annual Meeting. Sheraton-Biltmore Hotel, Atlanta, Ga. Write NLGI Office, 4635 Wyandotte, Kansas City, Mo. 62112. Oct. 25-29. Institute of Sanitation Management. National Environmen­ tal Sanitation & Maintenance Manage­ ment Conference & Exposition. PickCarter Hotel, Cleveland, Ohio. Write Harold C. Rowe, ISM, 1710 Drew St., Clearwater, Fla. 33515. Oct. 2 5 - 2 9 . TAPPI 25th Engineering Conference. Denver Hilton, Denver, Colo. Write TAPPI, 360 Lexington Ave., New York, N.Y. 10017. Oct. 2 5 - 3 1 . EUCHEM Conference on Primary Processes of Organic Com­ pounds in Condensed Phases. Schloss Elmau/Mittenwald, Germany. Write Gesellschaft Deutscher Chemi­ ker, 6000 Frankfurt (M), Germany, Postfach 1 1 9 0 75. FEB. 2, 1970 C&EN 21A

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Oct. 2 6 - 2 8 . Spectroscopy Society of Canada. 17th Spectroscopy Sympo­ sium & Exhibition. Skyline Hotel, Ottawa, Ont. Write R. Ironside, c / o NRC Chemistry Division, Montreal Rd., Ottawa 7, Ont. Oct. 2 6 - 2 9 . Instrument Society of America. 25th Annual Conference. Civic Center, Philadelphia, Pa. Write Sal F. Luna, ISA, 530 William Penn PL, Pittsburgh, Pa. 15219. Oct. 2 6 - 3 0 . American Public Health Association. Annual Meeting. Civic Auditorium, Houston, Tex. Write Marion Paul, APHA, 1740 Broadway, New York, N.Y. 10019. Oct. 27. Association of Consulting Chemists & Chemical Engineers. An­ nual Dinner and Seminar. Chemists' Club, New York, N.Y. Write Agnes K. Peterson, Executive Secretary, ACCCE, 50 East 41st St., New York, N.Y. 10017. Oct. 27-30. American Ceramic Society. 23rd Pacific Coast Regional Meeting. Write American Ceramic Society, 4055 North High St., Columbus, Ohio 43214. Oct. 2 7 - 3 0 . ASTM Committee D-20 on Plastics. Buffalo, N.Y. Write C. B. Howard, Monsanto Co., Box 1311, Texas City, Tex. 77590. Oct. 2 8 - 3 1 . Federation of Societies for Paint Technology. 48th Annual Meet­ ing & 35th Paint Industries' Show, Boston, Mass. Write Robert W. Matlack, FSPT, 121 South Broad St., Philadelphia, Pa. 19107. Oct. 2 9 - 3 0 . Symposium on Chemisorption and Catalysis. Mount Royal Ho­ tel, London, England. Write C. H. Maynard, Institute of Petroleum, 61 New Cavendish St., London, W . l , England. Oct. 2 9 - 3 1 . ACS Midwest Regional Meeting. Lincoln, Neb. Write Dr. James H. Looker, University of Ne­ braska, Lincoln, Neb. 68508. 22A

C&EN FEB. 2, 1970

Oct. 29-Nov. 5. International Plastics Exhibition & Congress. Utrecht, the Netherlands. Write Koninklijke Nederlandse Jaarbeurs, Vredenburg 49, Utrecht, the Netherlands. Oct. 31-Nov. 4. West Coast Alkaline Pulping Conference. Hotel Vancou­ ver, Vancouver, B.C. Write Canadian Pulp & Paper Association, 2300 Sun Life Bldg., Montreal 110, Que. Nov. 1-5. Food & Dairy Industries Expo. Dairy & Food Industries Sup­ ply Association. Astrohall, Houston, Tex. Write Dairy & Food Industries Supply Association, 1145—19th St., N.W., Washington, D.C. 20036. Nov. 3 - 7 . TAPPI 24th Alkaline Pulping Conference. Roosevelt Hotel, New Orleans, La. Write TAPPI, 360 Lex­ ington Ave., New York, N.Y. 10017. Nov. 4 - 5 . Plastics Institute of America. 8th Annual Conference. Stevens In­ stitute of Technology, Hoboken, N.J. Write Dr. A. W. Meyer, PIA, Stevens Institute of Technology, Castle Point Sta., Hoboken, N.J. 07030. Nov. 4 - 6 . American Association of Tex­ tile Chemists & Colorists. National Technical Conference. Regency Hyatt House, Atlanta, Ga. Write George P. Paine, Executive Secretary, P.O. Box 12215, Research Triangle Park, N.C. 27709. Nov. 5 - 8 . Association of Clinical Scientists. Annual Meeting. Shoreham Hotel, Washington, D.C. Write Betty Anderson, Asst. Secretary, Association of Clinical Scientists, University of Connecticut Medical School, 2 Holcomb St., Hartford, Conn. 06112. Nov. 6-10. American Institute of Bio­ logical Sciences. 1st National Bio­ logical Congress. Detroit, Mich. Write Ann F. Kulback, AIBS, 3900 Wis­ consin Ave., N.W., Washington, D.C. 20016. Nov. 8 - 1 0 . Fluid Controls Institute. Fall Meeting. Drake Oakbrook, Oak Brook, III. Write E. R. Rath, FCI, P.O. Box 1485, Pompano Beach, Fla. 33060. Nov. 9 - 1 1 . Conference on Solid State Chemistry. Rice Hotel, Houston, Tex. Write W. T. Doherty, Robert A. Welch Foundation, 2010 Bank of the South­ west Bldg., Houston, Tex. 77002. Nov. 9 - 1 1 . California Fertilizer Associa­ tion. 47th Annual Convention. Rivi­ era Hotel & Country Club, Palm Springs, Calif. Write Sidney H. Bierly, CFA, 2222 Watt Ave., Suite B-7, Sacra­ mento, Calif. 95825. Nov. 10-12. Society of Plastics Engi­ neers. 2nd National Technical Con­ ference. Plastics in Furniture. Chase Park Plaza Hotel, St. Louis, Mo. Write John H. Hyden, SPE, 656 West Putnam Ave., Greenwich, Conn. 06830.

Nov. 16-19. Symposiums on Data Handling in Analytical Chemistry and Progress in Instrumental Analysis. Basel, Switzerland. Write Gesellschaft Deutscher Chemiker, 6000 Frankfurt (M), Germany, Postfach 11 90 75. Nov. 17-19. American Federation of In­ formation Processing Societies. Fall Joint Computer Conference. Astrohall, Houston, Tex. Write D. R. Cruzen, AFIPS, 210 Summit Ave., Montvale, N.J. 07645. Nov. 22-24. General Discussion on the Vitreous State. Bristol, England. Write Faraday Society, 6 Gray's Inn Sq., London, W.C.I, England. Nov. 24. Manufacuring Chemists Asso­ ciation. Midyear Meeting. New York, N.Y. Write MCA, 1825 Connecticut Ave., N.W., Washington, D.C. 20009. Nov. 29-Dec. 3. American Institute of Chemical Engineers. 63rd Annual Meeting. Sheraton Hotel, Chicago, III. Write Richard Glover, AlChE, 345 East 47th St., New York, N.Y. 10017. Dec. 1-2. Society of Cosmetic Chem­ ists. Annual Meeting. Americana Hotel, New York, N.Y. Write Shirley Ann DeRagon, Amerchol Park, Talmadge Rd., Edison, N.J. 08817 Dec. 1-3. National Fertilizer Solutions Association. Convention. Kiel Audi­ torium, St. Louis, Mo. Write W. Harold Schelm, NFSA, 910 Lehmann Bldg., Peoria, III. 61602. Dec. 2 - 4 . ACS Southeast-Southwest Regional Meeting. Roosevelt Hotel, New Orleans, La. Write Dr. Jack Stocker, Dept. of Chemistry, LSU, New Orleans, La. 70122. Dec. 3. Synthetic Organic Chemical Manufacturers Association. Annual Meeting. Roosevelt Hotel, New York, N.Y. Write Ronald A. Lang, SOCMA, 330 Madison Ave., New York, N.Y. 10017. Dec. 3 - 4 . Chemistry of Peptides. Intra-Science Symposium. Santa Monica, Calif. Write Dr. Norman Kharasch, Intra-Science Research Foundation, P.O. Box 430, Santa Monica, Calif. 90406. Dec. 6 - 1 1 . 2nd International Air Pol­ lution Conference. International Union of Air Pollution Prevention As­ sociations. Sheraton Park Hotel, Washington, D.C. Write Arthur C. Stern, Dept. of Environmental Sci­ ences & Engineering, School of Pub­ lic Health, University of North Caro­ lina, P.O. Box 630, Chapel Hill, N.C. 27514. Dec. 6 - 1 1 . ASTM Committee D-2 on Petroleum Products & Lubricants. Sheraton-Dallas, Dallas, Tex. Write ASTM, 1916 Race St., Philadelphia, Pa. 19103.

Nov. 11-13. Parenteral Drug Associa­ tion. Annual Convention. Statler Hilton, New York City. Write Hubert E. Boyden, Administrative Secretary, PDA, Western Saving Fund Bldg., Broad & Chestnut Sts., Philadelphia, Pa. 19107.

Dec. 14-15. ACS Division of Indus­ trial and Engineering Chemistry. Symposium on Recent Advances in Establishing the Physicochemical Bases for Chromatography. Tulane University, New Orleans, La. Write Dr. Riki Kobayashi, Dept. of Chemi­ cal Engineering, Rice University, P.O. Box 1892, Houston, Tex. 77001.

Nov. 15-19. American Nuclear Society. Winter Meeting. Sheraton-Park Hotel, Washington, D.C. Write David G. Pettengill, Meetings Manager, ANS, 244 East Ogden Ave., Hinsdale, III. 60521.

Dec. 2 6 - 3 1 . American Association for the Advancement of Science. Annual Meeting. Chicago, III. Write D. W. Thornhill, Meeting Manager, AAAS, 1515 Massachusetts Ave., N.W., Washington, D.C. 20005.