Topical Subjects
- Coal mines and mining--West Virginia--Wayne County.5
- Coal mines and mining--West Virginia--Webster County.36
- Coal mines and mining--West Virginia--Welch.1
- Coal mines and mining--West Virginia--West End.1
- Coal mines and mining--West Virginia--Whipple.3
- Coal mines and mining--West Virginia--White Sulphur Springs.1
- Coal mines and mining--West Virginia--Winding Gulf--Safety measures.1
- Coal mines and mining--West Virginia--Winding Gulf.10
- Coal mines and mining--West Virginia--Winifrede.1
- Coal mines and mining--West Virginia--Wolf Summit.1
- Coal mines and mining--West Virginia--Wrights.1
- Coal mines and mining--West Virginia.176
- Coal mines and mining.814
- Coal preparation plants--Designs and plans.1
- Coal preparation plants--Equipment and supplies.6
- Coal preparation plants--Illinois--Benton.1
- Coal preparation plants--Illinois--Nokomis.2
- Coal preparation plants--Kentucky--Jenkins.9
- Coal preparation plants--Kentucky--Van Lear.2
- Coal preparation plants--Ohio--Cadiz.3