Search U.S. government technical reports digitized or harvested by TRAIL.
Carbonizing properties of Eagle-bed coal from Prospect shaft, Carbon, Kanawha County, W. Va.
Carbonizing properties of velva lignite from Ward county, N. Dak., and monarch coal from Sheridan county, Wyo.
Carbonizing properties of western coals
Carbonizing properities of Hill-bed coal from Hickey no. 1 mine on Lookout Mountain, Cherokee County, Ala.
Carbonizing properties of thick Freeport and Pittsburgh coals from Pennsylvania, Elkhorn coal from Kentucky, and America and Mary Lee coals from Alabama
Carbonizing properties of Beckley-bed coal from Stanaford no. 1 mine, Mount Hope, Raleigh County, W. Va.