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Miner running a continuous mining machine.

1. Continuous Mining Machine

Two miners work with a machine to undercut coal.

2. Miners Undercutting Coal with Machine

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

3. Drilling Prior to Setting Explosives

Miner operating a loading machine outside of a mine.

4. Loading Machine at MacAlpin Coal Company

'This very coarse lumpy mine run coal is the result of proper shooting. The miner is paid on a tonnage basis for loading this coal into mine cars. He is required to watch his coal carefully as he loads it and see that no impurities become mixed with the coal.'

5. Miner Prepares to Load Coal After Shooting

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

6. Dogs in Harness, Ohio Coal Mine