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Directions for Sampling Coal for Shipment or Delivery

Description: 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.

Natural Ventilation of Michigan Copper Mines

Description: Technical paper issued by the Bureau of Mines over the ventilation of copper mines in Michigan. Natural ventilation of the mines and mining conditions are discussed. This report includes tables, maps, and illustrations.
Date: 1932
Creator: McElroy, G. E.

Coal Project: Five Year Framework (FY 1976 Through FY 1980)

Description: This document presents the total scope of the framework for the U.S. Coal Project during fiscal years 1976 through 1980. The project was initiated to provide information for appropriate involvement of the Fish and Wildlife Service in U.S. coal development actions.
Date: July 14, 1976
Creator: Coal Project (U.S.)