Fluorspar and cryolite in 1926 ...
Series: Mineral resources of the United States -- 1926- part 2
Published: 1927
Place of publication: Washington
Language: eng
Number of pages: 49
Subjects: Cryolite; Fluor-spar
Notes: At head of title: Department of Commerce, Herbert Hoover, Secretary. Bureau of Mines, Scott Turner, Director.