The effect of stemming on the efficiency of explosives - Snelling, Walter Otheman, 1880-; Tiffany, J. E. (Joseph Edgar), b. 1879.; Howell, Spencer P.; Hall, Clarence (Washington, U.S. Govt. print. off., 1928)
"First edition issued in June, 1912. Second edition, August, 1912. Third edition, March, 1928."--p. 2.
At head of title: ... Department of commerce. Herbert Hoover, secretary. Bureau of mines. Scott Turner, director.
Mode of access: Internet.
Keywords: Explosives