We were walking up the track from the mine-bottom toward six west-south—Billy Wild, Pat Davis, two track-repairers, and I. As we turned the corner by the run-around, there came suddenly from far off in the thick stillness a faint tremor and a strong current of air. The 'shooters' were at work. For a quarter of a mile we walked on, stopping every once in a while to listen to the far-off 'boom' of the blasts that came through the long tunnels, faint and distant, as though muffled by many folds of heavy cloth. We pushed open the big trappers' door just beyond where First and Second Right turn off from the main entry, and came into the faint yellow glow of a single electric lamp that hung from the low beamed roof.
Beside the track, in a black niche cut in the wall of coal, two men were working. A safe twenty feet from them their lighted pit-lamps flared where they were hung by the hooks from one of the props. Round, black cans of powder tumbled together in the back of the alcove, a pile of empty paper tubes and great spools of thick, white fuse lay beside them. We sat down on the edge of the track, at a safe distance from the open powder, and watched them as they blew open the long, white tubes and with a battered funnel poured in the coarse grains of powder, until the smooth, round cartridge was filled, a yard or two of white fuse hanging from its end. In fifteen minutes they had finished, and one of the men gathered in his arms the pile of completed cartridges and joined us in the main entry.
A few minutes later, as we neared the heading, a sudden singing 'boom' came down strongly against the air-current and bent back the flames in our pit-lamps. Far off in the blackness ahead, a point of light marked the direction of the tunnel; another appeared. Suddenly, from the thick silence, came the shrill whine of the air-drills. A couple of lamps, like yellow tongues of flame, shone dimly in the head of the tunnel, and the air grew thick with a flurry of fine coal-dust. Then, below the bobbing lights appeared the bodies of two men, stripped to the waist, the black coating of dust that covered them moist with gleaming streaks of sweat.
'How many holes have you drilled?' yelled Wild, his voice drowned by the scream of the long air-drill as the writhing bit tore into the coal.
There was a final convulsive grind as the last inch of the six-foot drill sank home, then the sudden familiar absence of sound save for the hiss of escaping air.
'All done here.'
Slowly the two men pulled the long screw blade from the black breast of the coal, the air-hose writhing like a wounded snake about their ankles. The driller who had spoken wiped his sweaty face with his hands, his eyes blinking with the dust. He picked up his greasy coat from beside the track and wrapped it around his wet shoulders.
'Look out for the gas!' he shouted. 'There is a bit here, up high.'
He raised his lamp slowly to the jagged roof. A quick blue flame suddenly expanded from the lamp and puffed down at him as he took away his hand.
In the black end of the tunnel six small holes, each an inch and a half in diameter and six feet deep, invisible in the darkness and against the blackness of the coal, marked where the blasts were to be placed. On the level floor, stretching from one wall of the entry to the other, the undercut had been ground out with the chain-machines by the machine-men during the afternoon; and as soon as the blasts were in and the fuses lighted, the sudden wrench of these charges would tear down a solid block of coal six feet deep by the height and depth of the entry, to fall crushed and broken into the sump-cut, ready for the loaders on the following morning.