Small-scale placer mines as a source of gold, employment, and livelihood in 1935
By: by Charles White Merrill, Charles W. Henderson, and O.E. Kiessling ...
Contributors: Henderson, Charles William, 1885- joint author.; Kiessling, O. E. 1901- joint author.; United States. Bureau of Mines.
Series: National Research Project on reemployment opportunities and recent changes in industrial techniques ... Mineral technology and output per man studies ...; [Report no. E-2]
Published: 1937
Place of publication: Philadelphia, Pa
Language: eng
Number of pages: 52
Subjects: Gold mines and mining -- United States.; Placer mining.; Miners -- United States.; Gold miners -- United States.
Notes: Bibliographical foot-notes.
Series title in part also on t.p.
Photoprinted.
In cooperation with the U.S. Bureau of Mines. cf. p. [v]
Issued also in Technology, employment, and output per man: copper, iron, placer gold (National Research Project on reemployment opportunities and recent changes in industrial techniques) [1937-40]