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Department of Commerce

Herbert Hoover, Secretary

bureau of mines Scott Turner, Director

RARE METALS'

; COBALT, MOLYBDENUM, NICKEL, TANTALUM, TITANIUM, TUNGSTEN, RADIUM, URANIUM, AND VANADIUM

\ IN 1926

7

By FRANK H^j8( t

Mineral Resources of the United States, 1926—Part I (Pages 249-274)

Published January 12, 1928

V

PRICE 5 CENTS

ol" I uiily by the Superintendent... (Información más detallada)