a symposium sponsored by ASTM Committee E-24 on Fracture Testing of Metals, American Society for Testing and Materials, Philadelphia, Pa., 23-25 Aug., 1976 ; J. M. Barsom, symposium chairman. sponsored by ASTM Committee E-24 on Fracture Testing of Metals, American Society for Testing and Materials, Chicago, Ill., 28-30 June, 1976 ; G. T. Hahn and M. F. Kanninen, editors. sponsored by ASTM Committee D-4 on Road and Paving Materials, American Society for Testing and Materials, Bal Harbour, Fla., 6 Dec. 1978 ; G. J. Allen, symposium chairman. sponsored by ASTM Committee E-24 on Fracture Testing of Metals, American Society for Testing and Materials, Atlanta, Ga., 16-18 Nov. 1977 ; J. D. Landes, J. A. Begley, G. A. Clarke, editors. 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 F-1 on Electronics, American Society for Testing and Materials, San Diego, Calif., 15-16 Feb., 1979 ; R.D. Westbrook, symposium chairman. sponsored by ASTM Committee C-16 on Thermal and Cryogenic Insulating Materials, American Society for Testing and Materials, Philadelphia, Pa., 19-20 Sept. 1977 ; R. P. Tye, editor. sponsored by ASTM Committee E-10 on Nuclear Applications and Measurement of Radiation, American Society for Testing and Materials, St. Louis, Mo., 4-6 May 1976 ; F. R. Shober, symposium chairman. 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.