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Some factors affecting losses of coal in mining

Falls of roof and coal in bituminous coal-mines

Published Year

• 1920-1929 (2) *

Subject

• Bituminous coal mines and mining (2) *
• Anthracite coal mines and mining (1)
• Bituminous coal (1)
• Bituminous coal--Pennsylvania (1)
• Coal mine accidents (1)
• Coal mine accidents--Statistics (1)
• Coal mines and mining (1)
• Coal mines and mining--United States (1)
• Mine accidents (1)

Author

• Adams, William W. (1)
• Rice, George S. (1)

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