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A miner at work placing a charge.

1. Miner Placing a Charge

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

2. Miner Placing a Charge

Miner setting charges at Jamison No. 9.

3. Setting Explosives at Jamison No. 9

Miners use large drill to place charges in holes deep in the coal. 'William Vandivert, Not to be reproduced without written liscense.'

4. Drilling Prior to Placing the Charge

'White Oak preparation begins when the machine leaves and the miner is ready to shoot down his coal. The shooting inspector on the left has not only located the hole for the miner to drill, but instructed him as to what angle he must bore his hole to contain the necessary explosive used in dislodging the coal from the seam. The kerf made by the cutting machine is plaining visible in this picture and you will note the cuttings of bug dust have been removed before the coal is shot. The length of the auger used by the miner and the width of the bit which determines the size of the hole bored, is also carefully regulated.'

5. Miners Preparing to Shoot Down White Oak Coal

Miner in the process of placing charges into the coal seam at Bishop Mine.

6. Placing Charges, Bishop Mine