Browse TRAIL Inventories

Relation of lead poisoning in Utah to mining

Quarry problems from the engineer's viewpoint

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

Notes on precautions to be taken when drilling oil or gas wells through workable coal beds or through mine workings


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