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Miner operating a loading machine.

2965. Loading Machine in Operation

Miner operating a Joy Loading Machine. '180 tons a day.'

2966. Joy Loading Machine in Action

2967. Miner Operating a Joy Continuous Mining Machine

Miner operating a Joy loading machine.

2968. Modern Joy Loading Machine

Miner operating a Joy loading machine.

2969. Joy Loading Machine

Miner operating a Joy continuous mining machine.

2970. Joy Manufacturing Company Continuous Mining Machine

Man riding an electric car.

2971. Miner Operating an Electric Car, Consolidation Coal Company, Ky.

Two miners work with a machine to undercut coal.

2972. Miners Undercutting Coal with Machine

Cutting machine in operation at the Pocahontas Exhibition mine, Pocahontas Va. on the Norfolk and Western Railway. 'Permission is granted to reproduce this photograph only on condition that all reproduction shall bear the following credit line: Photograph by Norfolk and Western Railway.'

2973. Cutting Machine in Operation at the Pocahontas Exhibition Mine, Pocahontas, Va.

Two miners at Pursglove No. 15 cut coal preparatory to shooting it down for loading.

2974. Cutting Coal at Pursglove No. 15

Two miners work with a cutting machine at Mine 206, Kentucky. 'This material is the property of the Consolidation Coal Co. and must be returned promptly to: Advertising Department, Consolidation Coal Company, 30 Rockefeller Plaza, New York, N.Y.

2975. Miners with Cutting Machine, Mine 206, Ky.

Two miners work on putting in roof bolts in the Pittsburgh Seam. Timber jack used to hold the roof while bolting.

2976. Miners Roof Bolting