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Exploration, Reserves, Bed Characteristics and Strip-Mining Possibilities of a Lignite Deposit Near Toledo, Lewis County, Washington
Report issued by the Bureau of Mines discussing exploration of Lewis County lignite deposits in Washington. History, development, and drilling methods are presented. This report includes tables, maps, illustrations, and photographs.
Date:
1947
Creator:
Toenges, Albert L.; Turnbull, Louis A. & Cole, Willard A.
System:
The UNT Digital Library
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
Approximate Quantitative Microscopy of Pulverized Ores, Including the Use of the Camera Lucida
Technical paper issued by the Bureau of Mines over microscopy of pulverized ores. As stated in the introduction, "this paper, which deals with the study of pulverized ores and the use of the camera lucida in such work, discusses an investigation undertaken at the Seattle and the Golden mining experiment stations of the Bureau of Mines" (p. 3). This paper includes tables, illustrations, and photographs.
Date:
October 1919
Creator:
Coghill, Will H. & Bonardi, J. P.
System:
The UNT Digital Library