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Analyses of Washington Coals: Supplement to Technical Paper 491
Report issued by the Bureau of Mines discussing the technological advances made in the mining industry between 1931 and 1941. Mechanized methods for mining operations are presented. This report includes tables, illustrations, and a map.
Date:
1941
Creator:
Yancey, H. F. & Geer, M. R.
System:
The UNT Digital Library
Collecting and Examining Subsurface Samples of Petroleum
Report issued by the Bureau of Mines discussing subsurface samples of petroleum. As stated in the scope of report, "the Bureau of Mines has developed special equipment and procedures for obtaining samples of petroleum under pressure from the bottom of wells and for examining these samples in the laboratory" (p. 4). This report includes tables, illustrations, and a photograph.
Date:
1941
Creator:
Grandone, Peter & Cook, Alton B.
System:
The UNT Digital Library
Mining Practices and Safety at the Lava Cap Gold Mining Corporation Mines, Nevada City-Grass Valley District, California
Report issued by the Bureau of Mines discussing mining safety in the Grass Valley mining district. As stated in the introduction, "the purpose of this paper is not to present an outstanding safety record but to show that gold mining can be pursued with the same degree of safety and improvement as any other industry, if and when the management recognizes that it can and must be done" (p. 1). This report includes tables, maps, illustrations, and photographs.
Date:
1941
Creator:
Ash, S. H.
System:
The UNT Digital Library