When Guido and Domenichino painted, in emulation of each other, the frescoes in the chapel of Sant’ Andrea in the church of San Gregorio, at Rome, Guido chose for his subject the Adoration of the Cross. The scene is supposed to be outside the walls of Patras in Achaia; the cross is at a distance in the background; St. Andrew, as he approaches, falls down in adoration before the instrument of his martyrdom, consecrated by the death of his Lord; he is attended by one soldier on horseback, one on foot, and three executioners; a group of women and alarmed children in the foreground are admirable for grace and feeling—they are, in fact, the best part of the picture. On the opposite wall of the chapel Domenichino painted the Flagellation of St. Andrew, a subject most difficult to treat effectively, and retain at the same time the dignity of the suffering apostle, while avoiding all resemblance to a similar scene in the life of Christ. Here he is bound down on a sort of table; one man lifts a rod, another seems to taunt the prostrate saint; a lictor drives back the people. The group of the mother and frightened children, which Domenichino so often introduces with little variation, is here very beautiful; the judge and lictors are seen behind, with a temple and a city in the distance. When Domenichino painted the same subject in the church of Sant’ Andrea-della-Valle, he chose another moment, and administered the torture after a different manner: the apostle is bound by his hands and feet to four short posts set firmly in the ground; one of the executioners in tightening a cord breaks it and falls back; three men prepare to scourge him with _thongs_: in the foreground we have the usual group of the mother and her frightened children. This is a composition full of dramatic life and movement, but unpleasing. Domenichino painted in the same church the crucifixion of the saint, and his apotheosis surmounts the whole.