Weathering of the Pittsburgh coal bed at the experimental mine near Bruceton, Pa.

Author: Porter, Horace C.
Additional Authors: Fieldner, Arno Carl,
Year: 1914
Document Type: USBM
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.7:35
Series: Technical paper / United States Department of the Interior, Bureau of Mines ;
Report Number: 35
Subject: Coal-weathering
Link: https://hdl.handle.net/2027/mdp.39015077560343

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