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Precautions to be observed in entering abandoned exploratory shafts and pits

Published Year

• 1920-1929 (1) *

Subject

• Abandoned coal mines (1)
• Abandoned coal mines--Accidents (1)
• Abandoned mines (1) *
• Abandoned mines--Risk assessment (1)
• Blackdamp (1)
• Firedamp (1)
• Methane (1)
• Mine gases (1)
• Mine gases--Safety measures (1)
• Mine safety (1)
• Mine shafts (1)
• Mine shafts--Safety measures (1)

Author

• Pickard, Byron O., (1)

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