00999cam a22002771 4500 gs 37000261 DLC 20260227111342.0 860218s1937 sa ab b 000 0 eng gs 37000261 (OCoLC)13164055 DLC NhD DLC premarc QE325 .A53 no. 9 TN948.O2 B3 Copy 2. Visser, D. J. L. The ochre deposits of the Riversdale district, Cape Province, by D.J.L. Visser ... Pretoria, Government printer, 1937. 21 p. incl. illus., tables, diagrs. fold map. 24 cm. South Africa. [Geological Survey] Geological series. Bulletin no. 9 At head of title: ... Union of South Africa. Department of mines. Bibliography: p. 21. Ocher. Mines and mineral resources South Africa Cape of Good Hope. Geological Survey (South Africa). Bulletin ; no. 9. 27386 27386