Corundum in the Northern and Eastern Transvaal - Hall, Arthur Lewis, 1872- (Pretoria : Govt. Print. and Stationery Office, 1920)
At head of title: Union of South Africa, Department of Mines and Industries, Geological Survey.
Includes bibliographical references (p. [209]) and index.
Published by authority of the Honourable the Minister of Mines and Industries.
Keywords: Corundum -- South Africa -- Northern Transvaal; Corundum -- South Africa -- Eastern Transvaal; Mines and mineral resources -- South Africa -- Transvaal