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Analyses of West Virginia coals

Timbering regulations in certain coal mines of Pennsylvania, West Virginia, and Ohio

Falls of roof and coal in mines operating in the Pittsburgh Coal Bed, Panhandle District, West Virginia

Falls of roof in mines operating in the Pittsburgh Coal Bed, West Virginia

Published Year

• 1920-1929 (1)
• 1930-1939 (3)

Subject

• Coal mines and mining--West Virginia (4) *
• Coal mine accidents (2)
• Coal mines and mining--Ohio (1)
• Coal mines and mining--Pennsylvania (1)
• Coal--Analysis (1)
• Coal--West Virginia--Analysis (1)
• Mine timbering (1)

Author

• Paul, J. W. (3)
• Geyer, John Nicholas, (2)
• Calverley, Joseph Gladstone, (1)
• Sibray, Donald Loammi, (1)

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