Search U.S. government technical reports digitized or harvested by TRAIL.
Sanitary survey of the coal mines of Alabama
Washability studies of the Mary Lee Seam at Lewisburg, Alabama
Washability studies of the Clark Seam at Marvel, Alabama
Fatalities caused by electric contacts in Alabama coal mines, 1925-39
Coking-coal deposits on Lookout Mountain, DeKalb and Cherokee Counties, Ala.