Our civilization, pace Chesterton, is founded on coal, more completely than one realizes until one stops to think about it. The machines that keep us alive, and the machines that make machines, are all directly or indirectly dependent upon coal. In the metabolism of the Western world the coal-miner is second in importance only to the man who ploughs the soil. He is a sort of caryatid upon whose shoulders nearly everything that is not grimy is supported. For this reason the actual process by which coal is extracted is well worth watching, if you get the chance and are willing to take the trouble.

When you go down a coal-mine it is important to try and get to the coal face when the 'fillers' are at work. This is not easy, because when the mine is working visitors are a nuisance and are not encouraged, but if you go at any other time, it is possible to come away with a totally wrong impression. On a Sunday, for instance, a mine seems almost peaceful. The time to go there is when the machines are roaring and the air is black with coal dust, and when you can actually see what the miners have to do. At those times the place is like hell, or at any rate like my own mental picture of hell. Most of the things one imagines in hell are if there–heat, noise, confusion, darkness, foul air, and, above all, unbearably cramped space. Everything except the fire, for there is no fire down there except the feeble beams of Davy lamps and electric torches which scarcely penetrate the clouds of coal dust.

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