But his grand and mastering quality, his crowning triumph and distinction above all other artists known to us, is his thorough knowledge of lights and shades. Like nature herself he does not present objects to us with the same force of light, but varied according to the surfaces, oppositions, and distances; it flows in a gradation insensibly increasing and diminishing, a distinction essential in aërial perspective, in which he is so great, and contributing finely to the general harmony. He observed the same principle in his shades, representing the reflection of colour upon each, in so delicate a degree, that though using them so abundantly, his shadows are always varied like nature's, never monotonous. This quality is eminently conspicuous in his night-piece in the Dresden gallery;[24] and in his Magdalen, there seen reposing in a cave; a small picture it is true, but estimated in the purchase at twenty-seven thousand crowns. By the use of his chiaroscuro he not only gave superior softness and rotundity to his forms, but displayed a taste in the whole composition, such as had never been witnessed before. He disposed the masses of his lights and shades with an art, purely natural in its foundation, but in the selection and effect altogether ideal. And he arrived at this degree of perfection by the very same path pursued by Michelangiolo, availing himself of models in clay and wax, the remains of some of which are said to have been found in the cupola at Parma not many years ago. It is also currently reported, that while employed in that city, he engaged the assistance of the famous modeller Begarelli, whom he conducted thither at his own expense.
Footnote 24: It is more accurately entitled by others the Opening of Day.
Though excellent in all, in other portions of his art he cannot be pronounced equally excellent. His conceptions were good, but occasionally they betrayed a want of unity, representing as he did one and the same story in different parts. Thus in the fable of Marsyas, in the Palazzo Litta at Milan, his contest with Apollo, Minerva consigning him over to punishment, and the punishment itself, are distributed into separate groups. The same kind of repetition will, I think, be found in the story of Leda, executed for Charles V. in which the swan is twice brought into view, proceeding by degrees to familiarize himself with her charms, until in the third group he wholly possesses her. In fact his inventions, for the most part, are like the strains of Anacreon, in which the young loves, and in sacred themes the angels, are introduced under the most agreeable forms and actions. Thus in the picture of S. George, they are seen sporting about the sword and helmet of the saint; and in S. Jerome an angel is engaged in shewing our Lord the book of that great doctor of our holy church, while another is holding under his nose the uncovered vase of ointment belonging to the Magdalen. Of his powers of composition we have a proof in the execution of the cupola, already so highly commended, in which it appears as if the architecture had been formed for the effect of the painting, so admirably is this last adapted, and not the production for the place. He was fond of contrasts, no less in whole figures than their parts; but he never arbitrarily affected them, or carried them to the extravagant degree we have since beheld, in violation of all decorum and truth. In force of expression, more particularly upon tenderer subjects, he stands, perhaps, without a rival or an example; such is his Magdalen just alluded to, as she is seen bending to kiss the feet of the Holy Child, with a countenance and action expressive of all the different beauties, scattered over the works of many other artists, a sentiment more fully expressed by Mengs: of this picture we may truly say with Catullus, "Omnibus una omnes surripuit Veneres." Grief was a passion likewise depicted by him with singular power; admirably varied according to circumstances in his Dead Christ at Parma, most heartfelt in that of the Magdalen, profound in the Virgin, and in a middling degree in the other female face. And though we do not meet with many examples of a loftier cast, still he could depict the fiercer passions with sufficient power, as witness the Martyrdom of S. Placidus, in which piece an executioner is so nobly drawn, that Domenichino avowedly imitated it in his celebrated picture of S. Agnes.
