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Nonmetallic mineral industries in 1939

Limestone and dolomite in the chemical and processing industries

A quarter century of mechanized mining:notes on permissibility

Prospect trenching with caterpillar-mounted angledozers

Diamond-drilling blast holes, eastern Magnetite Mine A

Published Year

• 1940-1949 (5) *

Subject

• Mines and mineral resources (5) *
• Boring (1)
• Dolomite (1)
• Limestone (1)
• Magnetite (1)
• Mineral industries (1)
• Prospecting (1)
• Rock-drills (1)

Author

• Bowles, Oliver. (2)
• Ilsley, L. C. (1)
• Jensen, Mabel S. (1)
• Lorain, S.H. (1)
• Mosier, McHenry. (1)
• Tyler, Paul M. (1)

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