as if it were a slate covered with addition and subtraction sums. Anything which tends, even under the fantastic form of the minutiae of Sherlock Holmes, to assert this romance of detail in civilization, to emphasize this unfathomably human character in flints and tiles, is a good thing. It is good that the average man should fall into the habit of looking imaginatively at ten men in the street even if it is only on the chance that the eleventh might be a notorious thief. We may dream, perhaps, that it might be possible to have another and higher romance of London, that men's souls have stranger adventures than their bodies, and that it would be harder and more exciting to hunt their virtues than to hunt their crimes. But since our great authors (with the admirable exception of Stevenson) decline to write of that thrilling mood and moment when the eyes of the great city, like the eyes of a cat, begin to flame in the dark, we must give fair credit to the popular literature which, amid a babble of pedantry and preciosity, declines to regard the present as prosaic or the common as commonplace. Popular art in all ages has been interested in contemporary manners and costume; it dressed the groups around the Crucifixion in the garb of Florentine gentlefolk or Flemish
