Search U.S. government technical reports digitized or harvested by TRAIL.
Electrical blasting practice as some coal mines in state of Washington
Rock-dusting in coal mines of the State of Washington
Automatic derailing switch at Roslyn no. 3 mine, Northwestern Improvement Company, Roslyn, Wash.
Systematic timbering rules at the Washington coal mines
Explosions in Washington coal mines
Accident Experience and Cost of Accidents in Washington Coal Mines
Falls of roof and coal in Washington mines
Accident experience and cost of accidents at Washington metal mines and quarries
Accident prevention at the New Black Diamond Coal Mine, Washington
Explosives accidents in California metal mines
Unwatering flooded coal mines in Washington
Accident experience and cost in California metal mines
Some factors affecting an accident-prevention program in metal mining in California
Water problem in the Pennsylvania anthracite mining region
Use of diesel engines in tunnels
Flood-Prevention Projects at Pennsylvania Anthracite Mines: A Preliminary Study
Flood-Prevention Projects at Pennsylvania Anthracite Mines: Progress Report for 1945
Water Pools in Pennsylvania Anthracite Mines
Carbon Dioxide Content of Mine-Fire Atmospheres as an Aid when Fighting Metal-Mine Fires