Search U.S. government technical reports digitized or harvested by TRAIL.
Estimate of Known Recoverable Reserves of Coking Coal in Indiana County, Pennsylvania
Estimate of Known Recoverable Reserves of Coking Coal in Cambria County, Pennsylvania
Carbonizing Properties: Chilton Coal from Lorado Number 5 Mine, Lorado, Logan County, West Virginia
Carbonizing properties of Armstrong County, Pa., coals
Carbonizing Properties of American Coals: Index of Coals Tested by the Bureau of Mines
The effect of temperature, charge density, and blending on the carbonization of coal
Estimate of known recoverable reserves of coking coal in Clearfield County, Pa.