As you travel northward your eye, accustomed to the South or East, does not notice much difference until you are beyond Birmingham. In Coventry you might as well be in Finsbury Park, and the Bull Ring in Birmingham is not unlike Norwich Market, and between all the towns of the Midlands there stretches a villa-civilization indistinguishable from that of the South. It is only when you get a little further north, to the pottery towns and beyond, that you begin to encounter the real ugliness of industrialism — an ugliness so frightful and so arresting that you are obliged, as it were, to come to terms with it.
A slag-heap is at best a hideous thing, because it is so planless and functionless. It is something just dumped on the earth, like the emptying of a giant’s dust-bin. On the outskirts of the mining towns there are frightful landscapes where your horizon is ringed completely round by jagged grey mountains, and underfoot is mud and ashes and over-head the steel cables where tubs of dirt travel slowly across miles of country. Often the slag-heaps are on fire, and at night you can see the red rivulets of fire winding this way and that, and also the slow-moving blue flames of sulphur, which always seem on the point of expiring and always spring out again. Even when a slag-heap sinks, as it does ultimately, only an evil brown grass grows on it, and it retains its hummocky surface. One in the slums of Wigan, used as a playground, looks like a choppy sea suddenly frozen; ‘the flock mattress’, it is called locally. Even centuries hence
