Search U.S. government technical reports digitized or harvested by TRAIL.
Washability studies of the Brookwood Bed at the Warrior View Mine, Tuscaloosa, Ala.
Washability data on certain coal beds of Alabama with special reference to sulphur elimination
Washability studies of Mary Lee Bed at Powhatan Mine, Powhatan, Ala.
Washability studies of coal from the Henry Ellen Bed at Acmar No. 5 Mine, Acmar, Ala.
Table cleaning of fine coal from the Thompson and Woodstock beds of the Cahaba Field, Alabama