States
Counties
Year
Month
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
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
Mineral Industries Survey of the United States: Idaho, Shoshone County, Coeur d'Alene District: the Silver Belt and the Sunshine Mine of the Coeur dÁlene District
Report issued by the U.S. Bureau of Mines discussing the mineral production of mines in Shoshone County, Idaho. Mining and milling methods of these mines are presented. This report includes tables, maps, illustrations, and a photograph.
Date:
February 1936
Creator:
Julihn, C. E. & Horton, F. W.
System:
The UNT Digital Library