And you will be surprised to find, when you try the experiment, how much the eye must instinctively judge in this manner. Take the front of San Zenone for instance, Plate I. You will find it impossible without a lens, to distinguish in the bronze gates, and in great part of the wall, anything that their bosses represent. You cannot tell whether the sculpture is of men, animals, or trees; only you feel it to be composed of pleasant projecting masses; you acknowledge that both gates and wall are, somehow, delightfully roughened; and only afterwards, by slow degrees, can you make out what this roughness means; nay, though here (Plate III.) I magnify[112] one of the bronze plates of the gate to a scale, which gives you the same advantage as if you saw it quite close, in the reality,—you may still be obliged to me for the information, that this boss represents the Madonna asleep in her little bed, and this smaller boss, the Infant Christ in His; and this at the top, a cloud with an angel coming out of it, and these jagged bosses, two of the Three Kings, with their crowns on, looking up to the star, (which is intelligible enough I admit); but what this straggling, three-legged boss beneath signifies, I suppose neither you nor I can tell, unless it be the shepherd's dog, who has come suddenly upon the Kings with their crowns on, and is greatly startled at them.
23. Farther, and much more definitely, the pleasantness of the surface decoration is independent of structure; that is to say, of any architectural requirement of stability. The greater part of the sculpture here is exclusively ornamentation of a flat wall, or of door panelling; only a small portion of the church front is thus treated, and the sculpture has no more to do with the form of the building than a piece of a lace veil would have, suspended beside its gates on a festal day; the proportions of shaft and arch might be altered in a hundred different ways, without diminishing their stability; and the pillars would stand more safely on the ground than on the backs of these carved animals.
24. I wish you especially to notice these points, because the false theory that ornamentation should be merely decorated structure is so pretty and plausible, that it is likely to take away your attention from the far more important abstract conditions of design. Structure should never be contradicted, and in the best buildings it is pleasantly exhibited and enforced; in this very porch the joints of every stone are visible, and you will find me in the Fifth Lecture insisting on this clearness of its anatomy as a merit; yet so independent is the mechanical structure of the true design, that when I begin my Lectures on Architecture, the first building I shall give you as a standard will be one in which the structure is wholly concealed. It will be the Baptistry of Florence, which is, in reality, as much a buttressed chapel with a vaulted roof, as the Chapter House of York—but round it, in order to conceal that buttressed structure, (not to decorate, observe, but to conceal) a flat external wall is raised; simplifying the whole to a mere hexagonal box, like a wooden piece of Tunbridge ware, on the surface of which the eye and intellect are to be interested by the relations of dimension and curve between pieces of encrusting marble of different colours, which have no more to do with the real make of the building than the diaper of a Harlequin's jacket has to do with his bones.
Plate II.—The Arethusa of Syracuse.
Plate III.—The Warning to the Kings. San Zenone. Verona.
25. The sense of abstract proportion, on which the enjoyment of such a piece of art entirely depends, is one of the æsthetic faculties which nothing can develop but time and education. It belongs only to highly-trained nations; and, among them, to their most strictly refined classes, though the germs of it are found, as part of their innate power, in every people capable of art. It has for the most part vanished at present from the English mind, in consequence of our eager desire for excitement, and for the kind of splendour that exhibits wealth, careless of dignity; so that, I suppose, there are very few now even of our best-trained Londoners who know the difference between the design of Whitehall and that of any modern club-house in Pall-mall. The order and harmony which, in his enthusiastic account of the Theatre of Epidaurus, Pausanias insists on before beauty, can only be recognized by stern order and harmony in our daily lives; and the perception of them is as little to be compelled, or taught suddenly, as the laws of still finer choice in the conception of dramatic incident which regulate poetic sculpture.
26. And now, at last, I think, we can sketch out the subject before us in a clear light. We have a structural art, divine, and human, of which the investigation comes under the general term, Anatomy; whether the junctions or joints be in mountains, or in branches of trees, or in buildings, or in bones of animals. We have next a musical art, falling into two distinct divisions—one using colours, the other masses, for its elements of composition; lastly, we have an imitative art, concerned with the representation of the outward appearances of things. And, for many reasons, I think it best to begin with imitative Sculpture; that being defined as the art which, by the musical disposition of masses, imitates anything of which the imitation is justly pleasant to us; and does so in accordance with structural laws having due reference to the materials employed.