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Miners talking while others run drilling equipment.

2617. Miners and Equipment Inside a Coal Mine

Coal carts on tracks and corridor openings in an underground mine in Monongalia County.

2618. Modern Slope Bottom in Brock No. 4 Mine, Continental Coal Company, Monongalia County, W. Va.

2619. 20 Ton Bethehem Cars at Jamison No. 9 Mine, Stonega Coke and Coal Company

2620. Electric Cable Reel and Joy Shuttle Car with Road Drag at Jamison No. 9 Mine

2621. Maintenance Equipment Cart at Jamison Mine No. 9

2622. Underground Electric Power Center Control Board at Jamison Coal Mine No. 9.

2623. Track Inside Jamison No. 9 Coal Mine

2624. Coal Shuttle Car in Jamison Coal Mine No. 9

Mechanic's pit provides location to work on mine haulage equipment;

2625. Underground Mechanic's Pit at Jamison Coal Mine No. 9.

2626. 2200 Volt Junction Box at Jamison Coal Mine No. 9

2627. Interior of Jamison Coal Mine No. 9

'Modified Longwall Mining with a German Coal Planer. Progress Report 2: Completion of Mining in three Adjacent Panels in the Pocahontas No. 4 Coal Bed, Helen, W. Va.'If this photograph is used for publication, please give credit to the Bureau of Mines, United States, Department of Interior.

2628. Wood Crib with One Crib Release Tripped at Pocahontas No. 4 Coal Bed, Helen, W. Va.