Then came the journey up to London through Birmingham and the Black District, another lesson, which needed much more to be rightly felt. The plunge into darkness lurid with flames; the sense of unknown horror in this weird gloom which then existed nowhere else, and never had existed before, except in volcanic craters; the violent contrast between this dense, smoky, impenetrable darkness, and the soft green charm that one glided into, as one emerged--the revelation of an unknown society of the pit--made a boy uncomfortable, though he had no idea that Karl Marx was standing there waiting for him, and that sooner or later the process of education would have to deal with Karl Marx much more than with Professor Bowen of Harvard College or his Satanic free-trade majesty John Stuart Mill. The Black District was a practical education, but it was infinitely far in the distance. The boy ran away from it, as he ran away from everything he disliked. Had he known enough to know where to begin he would have seen something to study, more vital than the Civil Law, in the long, muddy, dirty, sordid, gas-lit dreariness of Oxford Street as his dingy four-wheeler dragged its weary way to Charing Cross. He did notice one peculiarity about it worth remembering. London was still London. A certain style dignified its grime; heavy, clumsy, arrogant, purse-proud, but not cheap; insular but large; barely tolerant of an outside world, and absolutely self-confident. The boys in the streets made such free comments on the American clothes and figures, that the travellers hurried to put on tall hats and long overcoats to escape criticism. No stranger had rights even in the Strand. The eighteenth century held its own. History muttered down Fleet Street, like Dr. Johnson, in Adams's ear; Vanity Fair was alive on Piccadilly in yellow chariots with coachmen in wigs, on hammer-cloths; footmen with canes, on the footboard, and a shrivelled old woman inside; half the great houses, black with London smoke, bore large funereal hatchments; every one seemed insolent, and the most insolent structures in the world were the Royal Exchange and the Bank of England. In November, 1858, London was still vast, but it was the London of the eighteenth century that an American felt and hated.