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:	Hydraulic mining
	Gold mines and mining--United States
Link:	https://hdl.handle.net/2027/mdp.39015074128243