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Miner tests for gas in mine.

79. Testing for Gas

Miner tests for gas in mine.

80. Testing for Gas

Miner placing boards in Cavalier Mine No. 206.

81. Miner Placing Boards on the Floor of Cavalier Mine No. 206

Miner stands on pile of coal ready to be loaded and sent out of mine.

82. Coal Shot Down and Ready for Loading

Miner putting bolts into the roof of a mine for support.

83. Miner Roof Bolting

Miner putting bolts into the roof of a mine for support.

84. Miner Roof Bolting