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The treatment and sale of black sands

Saving gold by means of corduroy

Published Year

• 1930-1939 (2)

Subject

• Black sand (1)
• Corduroy (1)
• Gold mines and mining--Handbooks, manuals, etc (1)
• Gold--Milling (1)
• Hydraulic mining--Handbooks, manuals, etc (1)
• Placer deposits (1)

Author

• Bernewitz, M. W. (2) *

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