Search U.S. government technical reports digitized or harvested by TRAIL.
Fatalities at Indiana coal mines, 1934-38
Some information on quarry safety
Use and misuse of flame safety lamps
National first-aid and mine rescue contest :Columbus, Ohio, October 2, 3, and 4, 1951
National first-aid and mine rescue contest :Knoxville, Tenn., October 10, 11, and 12, 1955