Stead, A. D.A.D. Stead, August, 1946." "Supplement to the Journal of the Chemical, Metallurgical and Mining Society of South Africa, October 1953." Some sites shown pictorially. Originally published by the Transvaal Chamber of Mines." Mineral industries--Africa, Southern--Employees--MapsJPEG212f24e6-ec4e-46b5-b64d-07072175ca73engPublicMap of Southern Africa : showing the recruiting systems of the Native Recruiting Corporation and the Witwatersrand Native Labour Assocn.MapsAfrica1946Pennsylvania State University