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Drilling and Dustiness of Metal-Mine Air
Report issued by the U.S. Bureau of Mines on the air quality in metal-mines after using wet drills. Dust samples are collected and compared to samples collected from similar metal-mines in South Africa and Australia. This report includes tables.
Date:
March 1922
Creator:
Harrington, D.
System:
The UNT Digital Library
Oil-Shale Operations in the Union of South Africa: October 1947
Report issued by the Bureau of Mines over production of oil-shale facilities in South Africa. The deposits of oil-shales, and torbanites are described. The operations at the production facilities are also presented. This report includes tables, maps, illustrations, and photographs.
Date:
January 1954
Creator:
Thorne, H. M. & Kraemer, A. J.
System:
The UNT Digital Library