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Falls of roof and coal in mines operating in the Pittsburgh coal bed in Marion and Monongalia counties, W. Va.

Falls of roof and coal in mines operating in the Sewickley coal bed in Monongalia County, W. Va.

Published Year

• 1930-1939 (2)

Subject

• Coal mine accidents (2)
• Coal mines and mining--West Virginia--Monongalia County (2) *
• Coal mines and mining--West Virginia--Marion County (1)

Author

• Geyer, John Nicholas, (2)
• Paul, J. W. (2) *

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