Placer mining in the western United States :part II. Hydraulicking, treatment of placer concentrates, and marketing of gold

Author: Gardner, E. D.
Additional Authors: Johnson, C. H.
Year: 1934
Document Type: USBI
Issuing Agency: U.S. Bureau of Mines,
SUDOC: I 28.27:6787
Series: Information circular / Bureau of Mines ;
Report Number: 6787
Subjects: Gold mines and mining--United States
Hydraulic mining
Link: https://hdl.handle.net/2027/mdp.39015074128243

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