Browse TRAIL Inventories

Hazards of methane from well water in some sections of Illinois

Studies of roof movement in coal mines.

Studies of roof movement in coal mines.

Underground transportation of coal :progress report [No.] 2

An analysis of the use of electricity at coal mines.

Use of salts to allay dust on shuttle-car roadways in coal mines

Control of roof and prevention of accidents from falls of rock and coal :suggested roof supports for use at faces in conjunction with mechanical loading

Suspension roof support.

Roof bolting in the United States


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