Search U.S. government technical reports digitized or harvested by TRAIL.
Some phases of coal-mine ventilation
Organization plan of the Holmes Safety Association
Questions and answers on first-aid training
Analysis of haulage fatalities in coal mines :January-June 1951
Analysis of haulage fatalities in bituminous-coal mines in 1950
Hazard of firing open, unconfined shots in coal mines
Ventilating Practices that Minimize Explosion Hazards in Bituminous-Coal Mines