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Notes on Mineral Wastes
From Introduction Need of Preventing Mineral Waste: "The purpose of the Bureau of Mines in publishing this report is to call attention to some of the present waste, in the hope that knowledge of the facts may lead to an increased desire to eradicate the wastes, and to greater interest in careful, practical and scientific investigations, through which only can they be overcome."
Date:
1912
Creator:
Parsons, Charles L.
System:
The UNT Digital Library
Investigations of Explosives Used in Coal Mines
Report discussing investigations of explosives used in coal mines throughout the United States.
Date:
1912
Creator:
Hall, Clarence; Snelling, W. O.; Howell, S. P. & Burrell, G. A.
System:
The UNT Digital Library