Hall, Arthur Lewis,  1872- <br/><br/>
Corundum in the Northern and Eastern Transvaal / 
by A.L. Hall. 
 - Pretoria :  Govt. Print. and Stationery Office,  1920. 
 - 223 p. :  ill., maps ;  25 cm. 
 - Memoir ;  no. 15 .
 - Memoir (Geological Survey (South Africa)) ;  15. .
<br/><br/> At head of title: Union of South Africa, Department of Mines and Industries, Geological Survey.  Published by authority of the Honourable the Minister of Mines and Industries. 
<br/><br/>Includes bibliographical references (p. [209]) and index. 
<br/><br/><label>LCCN: </label>gs 21000026  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Corundum--South Africa--Northern Transvaal.<br/>Corundum--South Africa--Eastern Transvaal.<br/>Mines and mineral resources--South Africa--Transvaal.
<br/><br/><label>LC Class. No.: </label>QE324  / .A3 no. 15