Browse TRAIL Inventories

A ventilation study of the Graceton Coal & Coke Co. mine, Graceton, Pa.

Some suggestions on the prevention of electrical accidents in coal mines

Studies of roof movement in coal mines.

Studies of roof movement in coal mines.

A study of timber decay in the Crucible Mine of the Crucible Fuel Co.

Studies of roof movement in coal mines.

Multiple-shift mechanical mining in some bituminous-coal mines.

An analysis of the use of electricity at coal mines.

Analyses of Illinois coals.

Cementation of bituminous-coal-mine roof strata.

Cementation of bituminous-coal-mine roof strata :injection of epoxy and polyester-type resins


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