01275cam a22003014a 4500 gs 46000049 DLC 20260227111351.0 860306s1944 sa abef b f000 0 eng c gs 46000049 (OCoLC)13242818 U.S. Geol. Survey. Library NhD NhD DLC premarc QE324 .A3 no. 39 Willemse, J. (Johannes) Lead deposits in the Union of South Africa and South West Africa with some notes on associated ores / by J. Willemse ... [et al.]. Pretoria : Govt. Printer, 1944. 186 p., [18] leaves of plates (some fold.) : maps, plans, tables, diagrs. ; 24 cm. Geological Survey memoir ; no. 39 Cover-title. At head of title: Union of South Africa, Dept. of Mines. With: Magnesite in the Union of South Africa / by J.S. Van Zyl ... [et al.]. Pretoria : Govt. Printer, 1942. Bound together subsequent to publication. DLC "Bibliography": p. 166. Lead ores South Africa. Lead ores Namibia. South Africa. Department of Mines and Industries. Memoir (Geological Survey (South Africa)) ; no. 39. 28065 28065