01144cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035002000092040005800112042001200170050001500182100003400197245005600231260007200287300007800359490006400437500007600501505028400577650002400861999001700885gs 22000386 DLC20260227111326.0860307m19221928sa abf       f000 0 eng c  ags 22000386   a(OCoLC)13253560  aLibrary, U.S. Geological SurveycNhDdNhDdOCoLCdDLC  apremarc00aQE324b.A31 aWybergh, Wilfrid John,d1868-14aThe coal resources of the Union of South Africa ...  aPretoria,bThe Government Printing and Stationery Office,c1922-28.  a3 v.billus., fold. plates (incl. maps, profiles) tables, diagrs.c25 cm.0 aSouth Africa. Geological Survey. Memoirvno. 19, vol. I-III  aAt head of title: Union of South Africa. Dept. of mines and industries.0 av. 1. The coal fields of Wilbank, Springs and Heidelberg, and of the Orange Free State. 1922.--v. 2. The inland coal fields of Natal. 1925.--v. 3. The coal fields of the eastern and south-eastern Transvaal, Springbok flats, Waterberg, Zoutpansberg and of the Cape Province. 1928. 0aCoalzSouth Africa.  c26193d26193