The formation of the oxidized ores of zinc from the sulphide ...
Series: Contributions from the Department of geology of Columbia university -- vol. XXVI, no. 5; Contributions from the Dept. of Geology of Columbia University -- v. 26, no. 5
Published: 1915
Place of publication: New York, N.Y
Language: eng
Number of pages: 2012
Notes: Reprinted from Bulletin no. 105, September, 1915, American institute of mining engineers.

Cover tile.

Columbia university, Ph. D.