The Legendary "White Metal" and its "Ore" (open access)

The Legendary "White Metal" and its "Ore"

Report concerning stories about claims of a "white metal" extracted from an "ore" found packed around pieces of iron or steel. It includes information about various tests conducted about the validity of these claims and their findings.
Date: December 1925
Creator: Davis, C. W.
System: The UNT Digital Library
Carbon Dioxide Content of Mine-Fire Atmospheres as an Aid when Fighting Metal-Mine Fires (open access)

Carbon Dioxide Content of Mine-Fire Atmospheres as an Aid when Fighting Metal-Mine Fires

Report issued by the U.S. Bureau of Mines discussing mine fires, and methods for controlling and extinguishing them. As stated in the purpose, "the purpose of this report is to show briefly how to utilize the trend of the carbon dioxide content of the mine-fire atmospheres to fight metal-mine fires" (p. 4). This report includes tables, and illustrations.
Date: December 1950
Creator: Ash, S. H.
System: The UNT Digital Library
Open Schedules for Gold and Silver Ores and Concentrates at Western Custom Smelters (open access)

Open Schedules for Gold and Silver Ores and Concentrates at Western Custom Smelters

Report issued by the U.S. Bureau of Mines discussing the smelting schedules for the operators of silver and gold mines. As stated in the introduction, "the paper discusses smelting schedules, general smelting practices that have a bearing on rates, and the reasons for penalties or credits for certain constituents of ores" (p. 1). This report includes tables.
Date: December 1936
Creator: Gardner, E. D. & Allsman, Paul T.
System: The UNT Digital Library
Report of Petroleum and Natural-Gas Division: Fiscal Year 1947 (open access)

Report of Petroleum and Natural-Gas Division: Fiscal Year 1947

Report issued by the U.S. Bureau of Mines discussing the work completed by the Petroleum and Natural Gas Division during 1947. Petroleum engineering studies and natural gas field studies are presented. This report includes tables, illustrations, and photographs.
Date: December 1948
Creator: Cattell, Roscoe Arnold
System: The UNT Digital Library
Multiple-Shift Mechanical Mining in some Bituminous-Coal Mines: Progress Report 4. Extraction of Pillars with Mechanized Equipment (open access)

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

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.
System: The UNT Digital Library
Some Haulage and Hoisting Hazards in Western Mines (open access)

Some Haulage and Hoisting Hazards in Western Mines

Report issued by the U.S. Bureau of Mines discussing safety hazards in western mines. Mine hoisting and haulage accidents are presented. Accident prevention is also discussed. This report includes tables.
Date: December 1942
Creator: Denny, E. H. & Humphrey, H. B.
System: The UNT Digital Library
Thickness of Bituminous Coal and Lignite Seams Mined in the United States in 1945 (open access)

Thickness of Bituminous Coal and Lignite Seams Mined in the United States in 1945

Report issued by the U.S. Bureau of Mines discussing bituminous coal and lignite seams found in the United States. The thickness of seams from several U.S. states is compared, as well as the mining methods employed. This report includes maps, tables, and illustrations.
Date: December 1947
Creator: Young, W. H. & Anderson, R. L.
System: The UNT Digital Library