sponsored by ASTM Committee D 19 on Water, American Society for Testing and Materials, Denver, Colo., 19-20 June 1978. ; C. E. Van Hall, editor. sponsored by ASTM Committee D-19 on Water, American Society for Testing and Materials, Minneapolis, Minn., 25 June 1977 ; J. W. Costerton and R. R. Colwell, editors. sponsored by ASTM Committee G-2 on Erosion and Wear, American Society for Testing and Materials, Vail, Colo., 24-26 Oct. 1977 ; W. F. Adler, editor. sponsored by ASTM Committee E-35 on Pesticides, American Society for Testing and Materials, New Orleans, La., 17 Oct. 1978 ; E. E. Kenaga, editor. sponsored by ASTM Committee E-24 on Fracture Testing, American Society for Testing and Materials, San Diego, Calif., 13-14 Oct. 1977. ; J. B. Chang, editor. sponsored by ASTM Committee D19 on Water, American Society for Testing and Materials, Ft. Lauderdale, Fla., 30-31 Jan. 1978 ; C. D. Litchfield and P. L. Seyfried, editors. sponsored by ASTM Committee D-19 on Water, American Society for Testing and Materials ; R.L. Weitzel, editor. sponsored by ASTM Committee E05 on Fire Standards, American Society for Testing and Materials, Boston, Mass., 27 June 1978 ; E. E. Smith and T. Z. Harmathy, editors. sponsored by ASTM Committee E-9 on Fatigue, American Society for Testing and Materials, Atlanta, Ga., 14-15 Nov. 1977 ; P. R. Abelkis and J. M. Potter, editors. sponsored by ASTM Committee E-35 on Pesticides, American Society for Testing and Materials, Cleveland, Ohio, 31 Oct.-1 Nov. 1977 ; L.L. Marking, R.A. Kimerle, editors.