00846cam a22002291 4500 gs 31000258 DLC 20260227111336.0 850906s1931 sa b f000 0 eng c gs 31000258 (OCoLC)12499880 Library, U. S. Geological Survey TxHR OCoLC DLC premarc QE324 .A3 no. 27 Hall, Arthur Lewis, 1872- A bibliography of South African geology for the years 1926 to 1930 (inclusive). Author's index, by A. L. Hall. Pretoria, Printed by the Government Printer, 1931. 160 p. 24 cm. South Africa. Geological Survey. Memoir no. 25 At head of title: Union of South Africa. Department of Mines and Industries. Geology South Africa Bibliography. 26914 26914