01275cam a22003014a 4500001001300000003000400013005001700017008004100034010001700075035002000092040004600112042001200158050002200170100002900192245013600221260003800357300008900395490003900484500001700523500006100540501016200601504002800763650002900791650002400820710005500844830005700899999001700956gs 46000049 DLC20260227111351.0860306s1944    sa abef  b   f000 0 eng c  ags 46000049   a(OCoLC)13242818  aU.S. Geol. Survey. LibrarycNhDdNhDdDLC  apremarc00aQE324b.A3 no. 391 aWillemse, J.q(Johannes)10aLead deposits in the Union of South Africa and South West Africa with some notes on associated ores /cby J. Willemse ... [et al.].  aPretoria :bGovt. Printer,c1944.  a186 p., [18] leaves of plates (some fold.) :bmaps, plans, tables, diagrs. ;c24 cm.1 aGeological Survey memoir ;vno. 39  aCover-title.  aAt head of title: Union of South Africa, Dept. of Mines.  aWith: Magnesite in the Union of South Africa / by J.S. Van Zyl ... [et al.]. Pretoria : Govt. Printer,  1942.  Bound together subsequent to publication.5DLC  a"Bibliography": p. 166. 0aLead oreszSouth Africa. 0aLead oreszNamibia.1 aSouth Africa.bDepartment of Mines and Industries. 0aMemoir (Geological Survey (South Africa)) ;vno. 39.  c28065d28065