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Directions for Sampling Coal for Shipment or Delivery
Technical paper issued by the Bureau of Mines with instructions for coal sampling for shipment. As stated in the introduction, "this paper deals with the sampling of coal after it has been mined" (p. 5). This paper includes illustrations.
Date:
June 1917
Creator:
Pope, George S.
Object Type:
Book
System:
The UNT Digital Library
Recent Progress in the Thawing of Frozen Gravel in Placer Mining
Technical paper issued by the Bureau of Mines over progress made for thawing gravel in placer mines. Different thawing tests are presented and discussed. This paper includes tables, photographs, and illustrations.
Date:
June 1922
Creator:
Janin, Charles
Object Type:
Report
System:
The UNT Digital Library