THE PRETENDED ENDLESS ARCADE.
In public gardens an apparently endless walk, under arches of gas-jets, is often seen. But, on walking down it, it is seen to be of restricted length, the illusion being obtained by an artful lessening of the sweep and height of the arch, after, during a certain distance, the arches have been regularly spaced out. This being done according to the rules of perspective, the keenest are deceived.
