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Jeffrey 290 cutting trench for 2200 volt line at Jamison No. 9.  Stonega Coke and Coal.

97. Jeffrey 290 cutting trench for 2200 volt line at Jamison No. 9

Miner using a 11 BU loading machine at Jamison No. 9. Stonega Coke and Coal.

98. Miner Operating a Loading Machine at Jamison No. 9

A Joy 10 RU preparing to cut US Royal Cable at Jamison No. 9.  Stonega Coke and Coal.

99. Joy 10 RU Preparing to Cut US Royal Cable at Jamison No. 9

Miner running a continuous mining machine.

100. Continuous Mining Machine

Two miners dust the rocks at Consol Mine No. 207 for safety.

101. Rock Dusting at Consol. Mine No. 207

An 11BU loading machine and a Joy Shuttle car at Jamison No. 9.  Stonega Coke and Coal.

102. Loading Machine and Shuttle Car at Jamison No. 9

Miner with drilling machine at Jamison No. 9.

103. Drilling Machine at Jamison No. 9

'Shuttle Cars: Here are pictured loaded and empty shuttle cars sometimes called buggies. Note the noveyor on the bottom of the empty car for unloading the coal at a central loading station, into the mine cars. This equipment is propelled by huge batteries or electric cable and of course requires no track. Track-mounted mechanical loaders load directly into the mine car.'

104. Miners Operating Shuttle Cars

Two dogs harnessed to coal carts. About 1890, Ohio Coal Mine. This photograph is the property of Pittsburgh Consolidation Coal Co.

105. Dogs in Harness, Ohio Coal Mine

Miner drilling a hole for explosives at the Bishop Mine, Pocahontas Fuel Co.

106. Drilling Prior to Placing Explosives at Bishop Mine, Pocahontas Fuel Company

Miners drill two or more holes into coal to place the explosive charges.

107. Drilling Prior to Setting Explosives

Two miners work with a cutting machine at Pursglove No. 15.

108. Miners Operating a Cutting Machine at Pursglove No. 15