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

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

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

Some Physical Factors Affecting Flotation Machine Performance

Year: 1944  |  P-67  (Pamphlets)

Authors
A.W. Fahrenwald

The Size, Number and Mineral-Carrying Efficacy of Bubbles in Flotation

Year: 1944  |  P-69  (Pamphlets)

Authors
A.W. Fahrenwald
Lewis S. Prater