Search U.S. government technical reports digitized or harvested by TRAIL.
Washability studies of the Mary Lee bed at Hull Mine, Dora, Ala.
Re-treatment of Sayreton jig middlings on coal-washing tables
Washability studies of the Brookwood Bed at the Warrior View Mine, Tuscaloosa, Ala.
Re-treatment of fine washed coal from the Black Creek and Mary Lee Beds on coal washing tables
Washability studies of Blue Creek Bed at Connellsville Mine, Connellsville, Ala.
Washability studies of Mary Lee Bed at Powhatan Mine, Powhatan, Ala.
Washability studies of coal from the Mary Lee Bed at the Bankhead Mine, Bankhead, Ala.
The cleaning of fine coal from the Mary Lee Bed at the Porter Mine
Classification and tabling of Alabama red iron ores
Table cleaning of fine coal from the Thompson and Woodstock beds of the Cahaba Field, Alabama