Investigations of explosives used in coal mines,
by Clarence Hall, W.O. Snelling, and S.P. Howell, with a chapter on the natural gas used at Pittsburgh, by G.A. Burrell, and an introduction by Charles E. Munroe.
|Main Author:||Hall, Clarence.|
|Related Names:||Munroe, Charles E. 1849-1938., Burrell, G. A. b. 1882., Howell, Spencer P. , Snelling, Walter Otheman 1880-|
Washington, Govt. print. off., 1912.
Natural gas /
Natural gas / Pennsylvania /
Coal mines and mining > Coal mines and mining / Explosives.
Running title: Explosives used in coal mines.
At head of title: ... Department of the interior. Bureau of mines. Joseph A. Holmes, director.
v, 3-197 p.
illus., VII pl. (1 fold.)
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