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Precautions to be observed in entering abandoned exploratory shafts and pits
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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) *
