Studies of roof movement in coal mines.
[Part] 3,
Gibson Mine of the Hillman Coal & Coke Co. /
by E.R. Maize, Edward Thomas, and H.P. Greenwald.

Description

Main Author

Maize, Earl R.

Related Names

Greenwald, H. P. (Harold Putnam), 1893-
Thomas, Edward.

Language(s)

English

Published

Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1940.

Subjects

Mine roof control.
Coal mines and mining.

Note

"Third in series of reports on convergence of roof and floor in coal mines and resultant subsidence of surface."

Physical Description

9 p. : ill. ; 27 cm.

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