sponsored by ASTM Committee E-28 on Mechanical Testing, American Siciety for Testing and Materials ; J. R. Newby and B. A. Niemeier, editors. sponsored by ASTM Committee E-28 on Mechanical Testing, American Society for Testing and Materials, Kansas City, Mo., 24, 25 May 1978. sponsored by ASTM Committee E-35 on Pesticides, American Society for Testing and Materials ; J. R. Beck, editor. sponsored by ASTM Committee D-9 on Electrical Insulating Materials, American Society for Testing and Materials ; R. Bartnikas, E. J. McMahon, editors. sponsored by ASTM Committee D-19 on Water, American Society for Testing and Materials ; R.L. Weitzel, editor. sponsored by ASTM Committee C-1 on Cement, American Society for Testing and Materials ; P.K. Mehta, 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 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 the ASTM Committee B-10 on Reactive and Refractory Metals and Alloys, American Society for Testing and Materials; A.L. Lowe, Jr. and G. W. Parry, editors.