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

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

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.

3. Proper Positioning of the Turbine Rotor in Its Casing

4. Loading Machine Discharges Coal into Shuttle Car

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

6. Coal Shuttle Car in Jamison Coal Mine No. 9

Large chunks of coal piled below the seam.

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

8. Interior of Jamison Coal Mine No. 9

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

Looking down a mine shaft.

10. Interior of New England Coal Mine

Miners talking while others run drilling equipment.

11. Miners and Equipment Inside a Coal Mine

Mine car traveling through the mine.

12. Mine Car