Investigation of the Young American Lead-Zinc Deposit, Stevens County, Washington (open access)

Investigation of the Young American Lead-Zinc Deposit, Stevens County, Washington

Report issued by the Bureau of Mines over investigations of mines in Stevens County, Washington. The history, geology, and physical features of the mines are presented. This report includes tables, maps, and illustrations.
Date: November 1949
Creator: Hundhausen, Robert J.
System: The UNT Digital Library
Accelerated Laboratory Test for Determination of Slacking Characteristics of Coal (open access)

Accelerated Laboratory Test for Determination of Slacking Characteristics of Coal

Report issued by the U.S. Bureau of Mines on laboratory testing developed to measure the slacking of coals. Testing methods and results are presented. This report includes tables and graphs.
Date: November 1930
Creator: Fieldner, Arno Carl; Selvig, W. A. & Frederic, W. H.
System: The UNT Digital Library
Report of the Nonmetals Division: Fiscal Year 1942 (open access)

Report of the Nonmetals Division: Fiscal Year 1942

Report issued by the Bureau of Mines over the operations of the Nonmetals Division during 1942. The work done by the division is discussed. This report includes tables, illustrations, and photographs.
Date: November 1942
Creator: Ralston, Oliver C. & Stern, A. George
System: The UNT Digital Library
Accident Experience and Cost of Accidents in Washington Coal Mines (open access)

Accident Experience and Cost of Accidents in Washington Coal Mines

Report containing tables detailing cost of mining accidents in Washington state in comparison with other states.
Date: November 1931
Creator: Ash, S. H.
System: The UNT Digital Library
Annual Report of Research and Technologic Work on Coal: Fiscal Year 1941 (open access)

Annual Report of Research and Technologic Work on Coal: Fiscal Year 1941

Report issued by the U.S. Bureau of Mines discussing the annual report over the research and technology of coal during 1941. As stated in the foreword, "these investigations increase our fund of exact knowledge on the properties and composition of American coals and lead to better methods in mining, preparing, storing, and utilizing coal" (p. 4). This report includes tables, illustrations, photographs, and a map.
Date: November 1941
Creator: Fieldner, Arno Carl & Schmidt, L. D.
System: The UNT Digital Library