PAINTINGS ON STONE.
It is well known that much of the decoration of Greek edifices was in colors. Of course these paintings were put upon the marble and stone of which the structures were made. The Greeks also made small pictures and painted them on stone, just as canvas and panels of wood are now used. Such painted slabs have been found in Herculaneum, in Corneto, and in different Etruscan tombs; but the most important and satisfactory one was found at Pompeii in 1872. Since then the colors have almost vanished; but Fig. 14, from it, will show you how it appeared when found. It represents the mythological story of the punishment of Niobe, and is very beautiful in its design.