Paintings of the temptation and the fall of Adam and Eve, in which the composition often reminds one of that adopted by the later masters, are often seen on the walls; and the sacrifice of Abraham, in which with reverent and just simplicity the interference of the Almighty is represented by a hand issuing from the clouds, is a common subject. Less frequent are pictures of David with his sling, of Tobit with the fish, of Susanna and the elders, treated symbolically, and some few other Old Testament stories. Their typical meaning was plain to the minds of those who frequented the catacombs. From the Gospels many scenes are represented in addition to those we have already mentioned: among the most common are the miracle of the multiplication of the loaves; our Saviour seated, with two or more figures standing near him; and his restoring sight to the blind. Every year's new excavations bring to light some new picture, and our acquaintance with the Art of the catacombs is continually receiving interesting additions. There appears to have been no definite rule in respect to the combination of subjects in a single chapel. The ceilings are generally divided into various compartments, each filled with a different subject. Thus, for example, we find on one of them the central compartment occupied by a figure of Orpheus; four smaller compartments are filled with sheep or cattle; and four others with Moses striking the rock, Daniel in the lions' den, David with his sling, and Jesus restoring the paralytic. At the angles of the vault are doves with branches of olive; and the ornaments of the ceiling are all of graceful and somewhat elaborate character. The purely ornamental portions of the paintings, though obviously formed on heathen originals, are almost universally of a pleasing and joyful character, and in many cases possess a symbolic meaning. Flowers, crowns of leaves, garlands, vines with clustering grapes, displayed more to the Christian's eyes than mere beauty of form. In these and other similar accessories the symbolism of the early Church delighted to manifest itself. On their terracotta lamps, fixed in the mortar at the head of graves, on their sepulchral tablets, on their rings, on their glass cups and chalices, the Christians put these emblems of their faith, keeping in mind their spiritual significance. Many of these symbols have preserved their inner meaning to the present day, while others have long lost it. Thus, the crown and the laurel were the emblems of victory; the palm, of triumph; the olive, of peace; the vine loaded with grapes, of the joys of heaven. The dove was at once the figure of the Holy Spirit, and the symbol of innocence and purity of heart; the peacock the emblem of immortality. The ship reminded the Christian of the harbor of safety, or recalled to him the Church tossed upon the waves; the anchor was the sign of strength and of hope; the lyre was the symbol