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1. Miner in a Shuttle Car

2. Miners Work on a Loading Machine Inside a Mine

Continuous mining machine at work.

3. Continuous Miner in a Tunnel Approximately 4 Feet High

4. Loading Machine Discharges Coal into Shuttle Car

5. Electric Shuttle Car at Jamison Coal Mine No. 9

6. Inter-Floor Lift at Jamison Mine No. 9

Jamison No. 9 Mine shaft with a tensioning device on a cable.

7. Rock Dusted Mine Shaft at Jamison No. 9

8. ITE Circuit Breaker at Jamison Mine No. 9

Mine car traveling through the mine.

9. Mine Car

10. Coal Shuttle in Jamison Mine No. 9

Overcast, where two air currents cross in a mine, at the Jamison Mine No. 9 shaft bottom.

11. Overcast in Jamison No. 9 Mine Shaft Bottom

Coal car tracks inside of the mine.

12. Tracks in an Underground Mine

Two miners operating a loading machine.

13. Miners Operating a Loading Machine

14. Miner Testing for Gas in Jamison No. 9 Mine

'Note the wooden mine car. It is of the Barnestown shaft which was the first shaft, of 100 feet in depth, in the valley.'

15. Miners at Work

16. Miner Testing for Gas at Consol. No. 32 Mine

'This miner has just completed loading a mine car of weighing net about two and one-half tons, and is waiting for a locomotive to come along and take it out and give him another empty car. An industrious miner will load about six and sometimes eight of these cars in one day. This is a wooden mine car that is now being rapidly replaced by steel mine car equipment. The number of post shown in this picture indicate again the immense amount of timber required to conduct operations in a safe manner.'

17. Loaded Mine Car

18. Coal on Belt at Jamison Coal Mine No. 9

J.P. McGee, Acting Research Director, and Jack Smith, in Charge of the Gas Turbine Development Project discuss proper positioning of the turbine rotor in its casing.

19. Proper Positioning of the Turbine Rotor in Its Casing

Miner works on pile of shot down coal.

20. Shot Down Coal at Jamison Coal Mine No. 9

21. Area Worked by Coal Cutters

Looking down a mine shaft.

22. Interior of New England Coal Mine

Print possibly overexposed.

23. Area worked by Coal Cutters

Notice the preparatory cut and the 3 charge-holes near floor of the mine.

24. Coal Nearly Ready to be Shot Down