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Questions and answers on timbering bituminous coal mines

Some suggestions on safety in timbering anthracite mines

Some information on timbering bituminous-coal mines

Published Year

• 1920-1929 (1)
• 1930-1939 (2)

Subject

• Mine timbering (3) *
• Coal mines and mining--Safety measures (1)

Author

• Currie, Robert Dewey, (1)
• Forbes, John J. V. (1)
• Owings, C. W. (1)
• Paul, J. W. (1)

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