He particularly delighted to have birds in his house, from which he drew, and from thence he obtained his surname of Uccello. In the cathedral there is a gigantic portrait of Gio. Aguto on horseback, painted by Paolo in green earth. This was, perhaps, the first attempt made in painting, which achieved a great deal without appearing too daring. He produced other specimens at Padua, where he delineated some figures of giants with green earth in the house of the Vitali. He was chiefly employed in ornamenting furniture for private individuals; the triumphs of Petrarch in the royal gallery, painted on small cabinets are supposed by some good judges to be his. Masolino da Panicale cultivated the art of chiaroscuro. I believe he derived advantage from having long dedicated his attention to modelling and sculpture, a practice which renders relief easy to the painter, beyond what is generally conceived. Ghiberti had been his master in this branch, who at this time was unrivalled in design, in composition, and in giving animation to his figures. Colouring, which he yet wanted, was taught him by Starnina, and in this also he became a very celebrated master. Thus uniting in himself the excellences of two schools, he produced a new style, not indeed exempt from dryness, nor wholly faultless; but grand, determined, and harmonious, beyond any former example. The chapel of St. Peter al Carmine, is a remaining monument of this artist. He there painted the Evangelists, and some acts of the Saint, as his vocation to the apostleship, the tempest, the denying of Christ, the miracle performed at Porta Speciosa, and the Preaching. He was prevented by death from representing other acts of St. Peter, as for instance, the tribute paid to Cæsar, baptism conferred on the multitude, the healing of the sick, which several years afterwards were painted by his scholar Maso di S. Giovanni, a youth who obtained the surname of Masaccio, from trusting to a precarious subsistence, and living, as it was said, by chance, while deeply engrossed with the studies of his profession. This artist was a genius calculated to mark an era in painting; and Mengs has assigned him the highest place among those who explored its untried recesses. Vasari informs us that "what was executed before his time might be called paintings, but that his pictures seem to live, they are so true and natural;" and in another place adds, that "no master of that age so nearly approached the moderns." He had formed the principles of his art on the works of Ghiberti and Donatello; perspective he acquired from Brunelleschi, and on going to Rome it cannot be doubted that he improved by the study of ancient sculpture. He there met with two senior artists, Gentile da Fabriano, and Vittore Pisanello, upon whom high encomiums, as the first painter of his time, may be seen in Maffei and elsewhere.[70] They who write thus had either not seen any of the paintings of Masaccio, or at most only his early