01231cam a22002891 4500 gs 65000465 DLC 20260227111418.0 790426s1962 sa b f000 0 eng c gs 65000465 (OCoLC)4900751 U. S. Geol. Survey Libr. AzU OCoLC DLC QB296.S6 S68 1962 QB296.S6 S68 1962 Suppl. Supplement to handbook 3, compiled by B.W. Darracott. Pretoria, 1973. 16 p. 22 cm. South Africa. Geological Survey. The gravity survey of the Republic of South Africa. Part. 1: Gravimeter observations, by P. J. Smit. Part 2: Isostatic anomalies and crustal structure, by A. L. Hales and D. I. Gough. Pretoria, Govt. Printer, 1962. vii, 486 p. illus. (3 fold.) maps. (7 fold., 3 col., in slipcase) 25 cm. South Africa. Geological Survey. Handbook 3 Abstract also in Afrikaans. Errata slip inserted. Bibliography: p. 462-463. Gravity. Geomagnetism South Africa. Smit, P. J. Gravimeter observations. Hales, A. L. Isostatic anomalies and crustal structure. 30143 30143