upon her husband doing all the housework; she has put down each separate item on a "rota." Now let her fall into a copper, her husband will refuse to drag her out, for "that is not down on his 'rota.'" In modern literature we meet with hundreds of variations on the theme of the robber robbed. In every case the root idea involves an inversion of rôles, and a situation which recoils on the head of its author.
Here we apparently find the confirmation of a law, some illustrations of which we have already pointed out. When a comic scene has been reproduced a number of times, it reaches the stage of being a classical type or model. It becomes amusing in itself, quite apart from the causes which render it amusing. Henceforth, new scenes, which are not comic de jure, may become amusing de facto, on account of their partial resemblance to this model. They call up in our mind a more or less confused image which we know to be comical. They range themselves in a category representing an officially recognised type of the comic. The scene of the "robber robbed" belongs to this class. It casts over a host of other scenes a reflection of the comic element
