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Topical Subjects
- Adena culture--Ohio.1
- Boring.5
- Coal Mines and Mining--Miners at Work.[remove]77
- Coal miners--Kentucky.2
- Coal miners--West Virginia--Owings.1
- Coal miners--West Virginia--Pursglove.1
- Coal miners--West Virginia--Shinnston.1
- Coal miners--West Virginia.1
- Coal miners.63
- Coal mines and mining--Dust control--Water infusion.1
- Coal mines and mining--Dust control.1
- Coal mines and mining--Explosives.4
- Coal mines and mining--Kentucky.2
- Coal mines and mining--Pennsylvania--Finleyville.1
- Coal mines and mining--Safety measures.2
- Coal mines and mining--West Virginia--Owings.1
- Coal mines and mining--West Virginia--Pursglove.1
- Coal mines and mining--West Virginia--Shinnston.1
- Coal mines and mining--West Virginia.2
- Coal mines and mining.60