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Group portrait of miners and horses inside a mine. 'Dr. Parkinson said a copy of this picture appeared in Natural Geographic's Pictorical Study of Appalachia.'

73. Miners and Their Horses

Three miners hard at work as coal comes down a conveyor.  Copyright Photo by William Vandivert, 21 East Tenth Street, New York 3, N. Y.

74. Mining Coal

'Charge being placed in the hole; notice preparatory cut in the center.'

75. Miner Placing a Charge

76. Miner Testing for Gas

Two miners operate a cutting machine. 'Credit must be given to Willaim Vandivert, 21 East Tenth St., New York 3, N.Y., Not to be reproduced without written liscense.'

77. Cutting Machine in Operation