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Miners leaving roofed man trip car at shifts end.

7. Miners Leaving Roofed Man-Trip Car At Shift's End, Consolidation Coal Company, Mine No. 32

Two men placing charges in an already drilled hole. Notice the preparatory cut on upper right hand side.

8. Miners Placing Charges

Two men operating a loading machine.

9. Loading Machine in Action at Mine No. 32

10. Joy Manufacturing Company Continuous Mining Machine

A miner moves a fully loaded shuttle car down the mine shaft.

11. Loaded Coal Shuttle Car

Two miners digging coal in mine.

12. Miners Operating a Cutting Machine