Coal-Mine Explosions in Ohio: 1874-1936 (open access)

Coal-Mine Explosions in Ohio: 1874-1936

Report issued by the U.S. Bureau of Mines discussing coal mine explosions in Ohio between 1874 and 1936. The number of explosions and fatalities are presented. The causes of mine explosions are discussed as well. This report includes tables.
Date: October 1937
Creator: Owings, C. W.
System: The UNT Digital Library
Mineral Industries Survey of the United States: California, Kern County, Mojave District: The Golden Queen and other Mines of the Mojave District, California (open access)

Mineral Industries Survey of the United States: California, Kern County, Mojave District: The Golden Queen and other Mines of the Mojave District, California

Report issued by the U.S. Bureau of Mines discussing the mineral production of mines in Kern County, California. Mining and milling methods of these mines are presented. This report includes tables, maps, illustrations, and photographs.
Date: January 1937
Creator: Julihn, C. E. & Horton, F. W.
System: The UNT Digital Library