Passing the Medicean busts at the head of the stairs, the famous Wild Boar and the two Molossian Hounds, we enter the first or eastern corridor, containing paintings of the earlier masters, mingled with ancient busts and sarcophagi. The best specimens of the Giotteschi are an Agony in the Garden (8), wrongly ascribed to Giotto himself; an Entombment (27), ascribed to a Giotto di Stefano, called Giottino, a painter of whom hardly anything but the nickname is known; an Annunciation (28), ascribed to Agnolo Gaddi; and an altar-piece by Giovanni da Milano (32). There are some excellent early Sienese paintings; a Madonna and Child with Angels, by Pietro Lorenzetti, 1340 (15); the Annunciation, by Simone Martini and Lippo Memmi (23); and a very curious picture of the Hermits of the Thebaid (16), a kind of devout fairy-land painted possibly by one of the Lorenzetti, in the spirit of those delightfully naïve _Vite del Santi Padri_. Lorenzo Monaco, or Don Lorenzo, a master who occupies an intermediate position between the Giotteschi and the Quattrocento, is represented by the Mystery of the Passion (40), a symbolical picture painted in 1404, of a type that Angelico brought to perfection in a fresco in San Marco; the Adoration of the Magi (39, the scenes in the frame by a later hand), and Madonna and Saints (41). The portrait of Giovanni dei Medici (43) is by an unknown hand of the Quattrocento. Paolo Uccello's Battle (52) is mainly a study in perspective. The Annunciation (53), by Neri di Bicci di Lorenzo, is a fair example of one of the least progressive painters of the Quattrocento. The pictures by Alessio Baldovinetti (56 and 60) and Cosimo Rosselli (63 and 65) are tolerable examples of very uninteresting fifteenth century masters. The allegorical figures of the Virtues (69-73), ascribed to Piero Pollaiuolo, are second-rate; and the same may be said of an Annunciation (such is the real subject of 81) and the Perseus and Andromeda pictures (85, 86, 87) by Piero di Cosimo. But the real gem of this corridor is the Madonna and Child (74), which Luca Signorelli painted for Lorenzo dei Medici, a picture which profoundly influenced Michelangelo; the splendidly modelled nude figures of men in the background transport us into the golden age. TRIBUNA.