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Displaying 1 - 4 of 4

Geologic Map of the Upper North Fork of the Clearwater River Area, Northern Idaho

Year: 1992  |  GM-20  (Geologic Maps)  |  Scale: 1:100,000

Reed S. Lewis
Russell F. Burmester
Mark D. McFaddan
Bruce A. Eversmeyer
C.A. Wallace
Earl H. Bennett

Size of Mineral Particle in Relation to Flotation Concentration

Year: 1921  |  P-2  (Pamphlets)

A.W. Fahrenwald

Testing Ores for Flotation

Year: 1921  |  P-3  (Pamphlets)

A.W. Fahrenwald

Differential Flotation

Year: 1921  |  P-4  (Pamphlets)

A.W. Fahrenwald