works accepted by Venturi, [56];

chronology of accepted works by, [58], [62]-[66];

versatility and precocity of, [59], [66];

inequality of, [59], [103];

analogy of with Schubert and Keats, [59], [110];

his productiveness, [60], [61];

his success in portraiture, [64], [65], [67];

additional portraits attributed to, [68];

influence of on Titian, [68], [69], [74];

pictures by, completed by Titian, [72];