The arriving and departing of theatre-goers by night adds sensibly to the brilliancy of the complexion of London. The flare of electricity in the region of the theatres made a midnight summer in the empty heart of September, and recalled the gayety of the season for the moment to the desolate metropolis. But this splendor was always so massed and so vivid that even in the height of the season it was one of the things that distinguished itself among the various immense impressions. The impressions were all, if I may so try to characterize them, transitory; they were effects of adventitious circumstances; they were not structural in their origin. The most memorable aspect of the Strand or Fleet Street would not be its moments of stately architecture, but its moments of fog or mist, when its meanest architecture would show stately. The city won its moving grandeur from the throng of people astir on its pavements, or the streams of vehicles solidifying or liquefying in its streets. The august groups of Westminster and Parliament did not seem in themselves spectacular; they needed the desertedness of night, and the pour of the moon into the comparative emptiness of the neighborhood, to fill them out to the proportions of their keeping in the memory. Is Trafalgar Square as imposing as it has the chance of being? It is rather scattered and spotty, and wants somehow the magic by which Paris moves the spirit in the Place de la Concorde, or Edinburgh stirs the soul with its suggestions of old steel-engravings of Athens. Of course St. Paul's has a prodigious opportunity, as the multitudinous omnibuses roll their tide towards its facade, but it is not equal to its opportunity. Bit for bit, there is not quite any bit in London like that edifice of smutted Greek on which the newly arrived American looks from his breakfast-table in his Liverpool hotel, and realizes that he is in England. I am far from thinking the black of the coal-smoke a disadvantage to the London architecture. Pure white marble is all very well, and the faint rose that the stone takes from a thousand years of Italian sunsets is not bad; but the black blur on the surfaces of St. Paul's lends wall and dome and pillar a depth of shadow which only the electric glare of tropic suns can cast. The smoke enriches the columns which rise, more or less casually as it seems, from the London streets and squares, and one almost hates to have it cleaned off or painted under on the fronts of the aristocratic mansions. It is like having an old picture restored; perhaps it has to be done, but it is a pity.