Browse TRAIL Inventories

Progress of investigations on liquid-oxygen explosives

Flame Safety Lamps

Analyses of Virginia Coals

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

Regulations and Inspection Prevent Accidents from Falls of Roof

Fifty-Nine Coal-Mine Fires: How They Were Fought and What They Teach

State laws relating to coal-mine timbering

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

Factors affecting falls of roof and coal

Method and cost of mining the Upper and Lower Freeports and the Lower Kittanning coal in a group of mines in Western Central Pennsylvania

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


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