Sec. 18. Instances of absence of imagination.--Claude, Gaspar Poussin. Keeping these points in view, it is interesting to observe the different degrees and relations of the imagination, as accompanied with more or less feeling or desire of harmony, vigor of conception, or constancy of reference to truth. Of men of name, perhaps Claude is the best instance of a want of imagination, nearly total, borne out by painful but untaught study of nature, and much feeling for abstract beauty of form, with none whatever for harmony of expression. In Gaspar Poussin, we have the same want of imagination disguised by more masculine qualities of mind, and grander reachings after sympathy. Thus in the sacrifice of Isaac in our own gallery, the spirit of the composition is solemn and unbroken; it would have been a grand picture if the forms of the mass of foliage on the right, and of the clouds in the centre, had not been hopelessly unimaginative. The stormy wind of the picture of Dido and Eneas blows loudly through its leaves, but the total want of invention in the cloud forms bears it down beyond redemption. The foreground tree of the La Riccia (compare Part II. Sec. VI. Chap. I., Sec. 6.) is another characteristic instance of absolute nullity of imagination. [Illustration: THE ADORATION OF THE MAGI. From a painting by Ruskin, after Tintoret.] Sec. 19. Its presence.--Salvator, Nicolo Poussin, Titian, Tintoret. In Salvator, the imagination is vigorous, the composition dextrous and clever, as in the St. Jerome of the Brera Gallery, the Diogenes of the Pitti, and the pictures of the Guadagni palace. All are rendered valueless by coarseness of feeling and habitual non-reference to nature. All the landscape of Nicolo Poussin is imaginative, but the development of the power in Tintoret and Titian is so unapproachably intense that the mind unwillingly rests elsewhere. The four landscapes which occur to me as the most magnificently characteristic are, first, the Flight into Egypt, of the Scuola di San Rocco (Tintoret;) secondly, the Titian of the Camuccini collection at Rome, with the figures by John Bellini; thirdly, Titian's St. Jerome, in the Brera Gallery at Milan; and fourthly, the St. Pietro Martire, which I name last, in spite of its importance, because there is something unmeaning and unworthy of Titian about the undulation of the trunks, and the upper part of it is destroyed by the intrusion of some dramatic clouds of that species which I have enough described in our former examination of the central cloud region, Sec. 13. I do not mean to set these four works above the rest of the landscape of these masters; I name them only because the landscape is in them prominent and characteristic. It would be well to compare with them the other backgrounds of Tintoret in the Scuola, especially that of the Temptation and the Agony in the Garden, and the landscape of the two large pictures in the church of La Madonna dell' Orto. Sec. 20. And Turner.