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Mining methods and costs at the Mt. Hope mine of the Warren Foundry and Pipe Corporation, Mt. Hope, N.J.

Diamond-drilling blast holes, eastern Magnetite Mine A

Diamond-drilling blast holes, eastern magnetite "Mine B"

Use of western magnetite as ship ballast

Published Year

• 1930-1939 (1)
• 1940-1949 (3)

Subject

• Magnetite (4) *
• Ballast (Ships) (1)
• Boring (1)
• Iron ores--New Jersey (1)
• Mines and mineral resources (1)
• Mines and mineral resources--Equipment and supplies (1)
• Rock-drills (1)

Author

• Mosier, McHenry. (2)
• Severy, C. L. (1)
• Sweet, J. R. (1)

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