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-35 on Pesticides, American Society for Testing and Materials ; J. R. Beck, 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 E-35 on Pesticides, American Society for Testing and Materials, Cleveland, Ohio, 31 Oct.-1 Nov. 1977 ; L.L. Marking, R.A. Kimerle, editors. 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 B-10 on Reactive and Refractory Metals and Alloys, American Society for Testing and Materials, New Orleans, La., 15-17 Oct. 1979 ; E.W Kleefisch, editor. 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 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 G02 on Erosion and Wear, American Society for Testing and Materials, Wright-Patterson Air Force Base, Ohio, 18 Oct. 1978 ; R. G. Bayer, editor.