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Progress of investigations on liquid-oxygen explosives

Timbering along the robbing line :factors influencing falls of roof in coal mines

Stop, look and listen! :the roof is going to fall

How are men killed in mines by falls of roof and coal?

Area of unsupported roof in coal mines :conditions and factor[s] for consideration

State laws relating to coal-mine timbering

Falls of roof in bituminous coal mines :influence of the seasons and rate of production

Method and cost of mining the Pittsburgh, or no. 8, coal bed in four eastern Ohio mines

Published Year

• 1920-1929 (8) *

Subject

• Coal mines and mining--Safety measures (4)
• Mine timbering (3)
• Mining engineering (3)
• Bituminous coal (1)
• Coal mine accidents (1)
• Coal mines and mining (1)
• Coal mines and mining--Ohio (1)
• Explosives (1)
• Mining law (1)

Author

• Paul, J. W. (8) *
• Geyer, John Nicholas, (1)
• Howell, S. P. (1)
• Sherrick, Jacob Leighty, (1)
• Tomlinson, H. (1)

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