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Thickness of Bituminous Coal and Lignite Seams Mined in the United States in 1945
Report issued by the U.S. Bureau of Mines discussing bituminous coal and lignite seams found in the United States. The thickness of seams from several U.S. states is compared, as well as the mining methods employed. This report includes maps, tables, and illustrations.
Date:
December 1947
Creator:
Young, W. H. & Anderson, R. L.
System:
The UNT Digital Library
Flood-Prevention Projects at Pennsylvania Anthracite Mines: Progress Report for 1945
Report issued by the Bureau of Mines over studies conducted on flood-prevention developed for mine systems. A history of flood prevention procedures as well as updated flood-prevention is presented. This report includes tables, graphs, maps, photographs, and illustrations.
Date:
August 1947
Creator:
Ash, S. H.; Cassap, W. E.; Westfield, James; Eaton, W. L.; Romischer, W. M.; Podgorski, E. J. et al.
System:
The UNT Digital Library
Production of Metallurgical Alumina from Pennsylvania Nodular Diaspore Clays
From introduction: "This report covers work done and the estimated costs of recovering metallurgical-grade alumina from the clays found in those deposits."
Date:
1947
Creator:
Conley, J. E.; Brown, R. A.; Cservenyak, F. J.; Anderberg, R. C.; Kandiner, H. J. & Green, S. J.
System:
The UNT Digital Library