Washington D.C: Government Printing Office, 1934. Small 4to. 307 pp. Fourth edition. With 33 text illustrations (26 photographic) and 10 folding diagrams. Original printed wrappers, some slight chipping to head and foot of spine, otherwise very good. With the stamp of the Technical Records Library of the Nova Scotia Department of Mines to front cover. Item #11271
Fourth edition of this authoritative handbook, put out by the U.S. Department of the Interior, Bureau of Mines.