UNT Libraries Government Documents Department - 4 Matching Results

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Marketing Mineral Pigments

Description: Report issued by the U.S. Bureau of Mines discussing the use of mineral pigments. The importance of pigments is presented along with a description of import and export trends of minerals. This report includes tables.
Date: August 1942
Creator: Harness, Charles L.

Multiple-Shift Mechanical Mining in some Bituminous-Coal Mines: Progress Report 4. Extraction of Pillars with Mechanized Equipment

Description: Report issued by the U.S. Bureau of Mines discussing "some methods and practices of mining coal mechanically where operations are conducted on more than one shift" (p. 3). Descriptions of mines, and mining methods are presented. This report includes tables, and illustrations.
Date: December 1942
Creator: Toenges, Albert L.; Maize, Earl R. & Jones, Frank A.