"But to sum up Titian's powers of conception, no one has equalled him in the propriety and fitness of colour. His pictures of St. Peter Martyr; the David and Goliah; and the Last Supper, which is in the Escurial, stand in the very highest rank in art. On the latter of these pictures being finished, Titian in his letter to the King, announcing the circumstance, says that it had been the labour of seven years. But by his original sketch in oil colours, which I have the good fortune to possess, and by which we may form an estimate, although the general effect and composition are unrivalled, the characters of the heads of the apostles are not equal to those of Leonardo da Vinci on the same subject. "Antonio Allegri da Correggio is the sixth source, whose emanating powers have illuminated the fine arts in the modern world. A superstitious mind, on seeing his works, would suppose that he had received his tuition in painting from the angels; as his figures seem to belong to another race of being than man, and to have something too celestial for the forms of earth to have presented to his view. Such have been the sayings of many on seeing his works at Parma, but, to my conception, he painted from the nature with which he was surrounded. His pictures of the Note, St. Gierolimo, and the St. George, are evident proofs of the observation. In the first of these pictures his mental conception shines supreme. It is the idea of illuminating the child in the subject of our Saviour's nativity. This splendid thought of giving light to the infant Christ, whose divine mission was to illuminate the human mind from Pagan darkness, no painter has since been so bold as to omit in any composition on the same subject. The two latter pictures have all the beauties seen in the paintings of this master, but they are deficient in appropriate character. "The inspiring power of Correggio's works illuminated the genius of Parmegiano, the energetic movements of whose graceful figures have never been equalled, nor are they deficient in the moral influence of the art. His Moses breaking the tables in a church at Parma, and his picture of the vision of St. Gierolimo, now in England, are filled with the impress of his intellectual powers, and stand pre-eminent over all his works. "I have thus taken a survey of the works of art, which stand supreme among the productions of Grecian and Italian genius, and which are the sources from which the subsequent schools have derived most of the principles of their celebrity. "The papal vortex drew into it nearly all the various powers of human refinement, and the inspiring influence of the first school in art having centered in Rome gave it superiority, till the Constable Bourbon, by sacking that city, obliged the fine arts to fly from their place, like doves from the vultures: they never re-appeared at Rome but with secondary power.