Search U.S. government technical reports digitized or harvested by TRAIL.
What the superintendent of a coal mine might do to prevent injury from falls of roof
Accident prevention in coal mining
What the mine foreman can do to prevent injury from falls of roof in coal mines
Working an underground mine 6 years without lost-time accidents
Falls of coal and rock on man-trips in bituminous-coal mines
Some suggestions on safety in coal-mine haulage
Coal-mine explosives :their characteristics, selection and safe use