Radionuclides in the environment : a symposium sponsored by the Division of Nuclear Chemistry and Technology at the 155th meeting of the American Chemical Society, San Francisco, Calif., April 1-3, 1968

Cellulases and their applications ; a symposium sponsored by the Division of Cellulose, Wood and Fiber Chemistry at the 156th meeting of the American Chemical Society Atlantic City, N. J. , Sept. 11-12, 1968

Polymerization kinetics and technology, ed. by Norbert A. J. Platzer. A symposium co-sponsored by the division of industrial and engineering chemistry and the division of polymer chemistry at the 163rd meeting of the American Chemical Society, Boston, Mass., April 10-14, 1972.

Electrodeposition of coating : a symposia sponsored by the Division of Organic Coating and Plastics Chemistry of the 161st meeting of the American Chemical Society, Los Angeles, Calif., March 31-April 1, 1971. George E. F. Brewer, Symposium Chairman.

Extractive and azeotropic distillation : based on papers presented at two symposia sponsored by the Division of Industrial and Engineering Chemistry of the American Chemical Society at the 160th meeting ,Chicago, ill., sept.17, 1970 and the 163rd meeting, Boston, Mass, april 14, 1972. Dimitrios P. Tassions symposia chairman.

Fate of organic pesticides in the aquatic environment : a symposium sponsored by the Division of Pesticide Chemistry at the 161st meeting of the American Chemical Society, Los Angeles, Calif., March 29-31, 1971

Ozone reactions with organic compounds : a symposium sponsored by the Division of Petroleum Chemistry at the 161 st. meeting of the American Chemical Society, Los Angeles, Calif. March 29-30, 1971. Philip S. Bailey, symposium chairman.

Biological correlations-The hansch approach : a symposium sponsored by the Division of Pesticide Chemistry at the 161st meeting of the American Chemical Society, Los Angeles, Calif., March 31, April 1, 1970 Wade Van Valkenburg, Symposium chairman.

Bioinorganic chemistry : a symposium co-sponsored by the Division of inorganic Chemistry of the American Chemical Society and the Chemical Institute of Canada at Virginia Polytechnic Institute and State University, Blacksburg, Va. June 22-25, 1970. Raymond dessy ; John Dillard and Lary Taylor, symposium co-chairmen.

Origin and refining of petroleum A symposium co-sponsored by the Division of Petroleum Chemistry of the American Chemical Society and the Canadian Society for chemical engineering of the Chemical Institute of Canada at the ACS-Cıc joint conference, Toronto, Canada, May 25-28, 1970. H. G. McGrath and M. E. Charles symposium chairman.

Pesticides identification at the residue level : a symposium sponsored by the division of Perticide Chemistry of the American Chemical Society at the Joint Conference of the Canada and the American Chemical Society at Toronto, Ontario, Canada May 26-27, 1970. Francis J. Biros symposium chairman.

Anaerobic biological treatment process A symposium sponsored by the division of Water, Air, and Waste Chemistry at the 159 meeting of the American Chemical Society, Houston, tex., Feb. 26, 1970. Federick G. Pohland symposium chairman.