Search U.S. government technical reports digitized or harvested by TRAIL.
Coal-Mine Fatalities in May, 1926
The National Safety Competition of 1929
Coal-Mine Fatalities in December, 1930
Coal-Mine Fatalities in February, 1931
Coal-Mine Fatalities in June, 1931
Coal-Mine Fatalities in May, 1931
Coal-Mine Fatalities in March, 1931
Coal-Mine Fatalities in November, 1930
Coal-Mine Fatalities in January, 1931
Annual Report of Research and Technologic Work on Coal: Fiscal Year 1941
Annual Report of Research and Technologic Work on Coal: Fiscal Year 1942
First Organization and Work of the Coal-Mine Inspection Division, Bureau of Mines
Annual Report of Research and Technologic Work on Coal: Fiscal Year 1943
Annual Report of Research and Technologic Work on Coal: Fiscal Year 1946
Estimate of Known Recoverable Reserves of Coking Coal in Somerset County, Pennsylvania