The papers in the Symposium on Sampling of Soil and Rock weregiven at the Seventy-third Annual Meeting of the American Societyfor Testing and Materials held in Toronto, Ont., Canada, 21-26 June1970. The sponsor of this symposium was Committee D18 on Soil andRock for Engineering Purposes. B. B. Gordon, Woodward Clyde andAssociates, and C. B. Crawford, National Research Council ofCanada, presided as symposium cochairmen.