Peter has already the bald head, and St. Paul the short brown hair and dark beard, by which they were afterwards recognizable. Under this chief composition, on a gold ground, is seen the Lamb upon a hill, with the four rivers of Paradise, and the twelve sheep on either hand. The great care of execution is seen in the five or six gradations of tints which the artist has adopted."--_Kugler._ SS. Cosmo and Damian, to whom this church is dedicated, were two Arabian physicians who exercised their art from charity. They suffered under Diocletian. "First they were thrown into the sea, but an angel saved them; and then into the fire, but the fire refused to burn them; then they were bound to crosses and stoned, but the stones either fell harmless or rebounded on their executioners and killed them, so then the pro-consul Lycias, believing them to be sorcerers, commanded that they should be beheaded, and thus they died." SS. Cosmo and Damian were the patron saints of the Medici, and their gilt statues were carried in state at the coronation of Leo X. (Giovanni de' Medici). Their fame is general in many parts of France, where their fête is celebrated by a village fair--children who ask for their fairing of a toy or gingerbread calling it their "St. Côme." "It is related that a certain man, who was afflicted with a cancer in his leg, went to perform his devotions in the Church SS. Cosmo and Damian at Rome, and he prayed most earnestly that these beneficent saints would be pleased to aid him. When he had prayed, a deep sleep fell upon him. Then he beheld St. Cosmo and St. Damian, who stood beside him; and one carried a box of ointments, and the other a sharp knife. And one said, 'What shall we do to replace this diseased leg when we have cut it off?' And the other replied, 'There is a Moor who has been buried just now at St. Pietro in Vincoli; let us take his leg for the purpose.' So they brought the leg of the dead man, and with it they replaced the leg of the sick man; anointing it with celestial ointment, so that he remained whole. When he awoke he almost doubted whether it could be himself; but his neighbours, seeing that he was healed, looked into the tomb of the Moor, and found that there had been an exchange of legs: and thus the truth of this great miracle was proved to all beholders."--_Mrs. Jameson, from the Legenda Aurea._