disposition of beautiful masses. That is to say, beautiful surfaces limited by beautiful lines. Beautiful surfaces, observe; and remember what is noted in my Fourth Lecture of the difference between a space and a mass. If you have at any time examined carefully, or practiced from, the drawings of shells placed in your copying series, you cannot but have felt the difference in the grace between the aspects of the same line, when inclosing a rounded or unrounded space. The exact science of sculpture is that of the relations between outline and the solid form it limits; and it does not matter whether that relation be indicated by drawing or carving, so long as the expression of solid form is the mental purpose; it is the science always of the beauty of relation in three dimensions. To take the simplest possible line of continuous limit—the circle: the flat disk inclosed by it may indeed be made an element of decoration, though a very meager one; but its relative mass, the ball, being gradated in three dimensions, is always delightful. Here[8] is at once the simplest, and, in mere patient mechanism, the most skillful, piece of sculpture I can possibly show you,—a piece of the purest rock-crystal, chiseled, (I believe, by mere toil of hand,) into a perfect sphere. Imitating nothing, constructing nothing; sculpture for sculpture's sake of purest natural substance into simplest primary form.

16. Again. Out of the nacre of any mussel or oyster shell you might cut, at your pleasure, any quantity of small flat circular disks of the prettiest color and luster. To some extent, such tinsel or foil of shell is used pleasantly for decoration. But the mussel or oyster becoming itself an unwilling modeler, agglutinates its juice into three dimensions, and the fact of the surface being now geometrically gradated, together with the savage instinct of attributing value to what is difficult to obtain, make the little boss so precious in men's sight, that wise eagerness of search for the kingdom of heaven can be likened to their eagerness of search for it; and the gates of Paradise can be no otherwise rendered so fair to their poor intelligence, as by telling them that every gate was of "one pearl."

17. But take note here. We have just seen that the sum of the perceptive faculty is expressed in these words of Aristotle's, "to take pleasure rightly" or straightly—χαιρειν ορθως. Now, it is not possible to do the direct opposite of that,—to take pleasure iniquitously or obliquely—χαιρειν αδικως or σκολιως,—more than you do in enjoying a thing because your neighbor cannot get it. You may enjoy a thing legitimately because it is rare, and cannot be seen often (as you do a fine aurora, or a sunset, or an unusually lovely flower); that is Nature's way of stimulating your attention. But if you enjoy it because your neighbor cannot have it,—and, remember, all value attached to pearls more than glass beads, is merely and purely for that cause,—then you rejoice through the worst of idolatries, covetousness; and neither arithmetic, nor writing, nor any other so-called essential of education, is now so vitally necessary to the population of Europe, as such acquaintance with the principles of intrinsic value, as may result in the iconoclasm of jewelry; and in the clear understanding that we are not, in that instinct, civilized, but yet remain wholly savage, so far as we care for display of this selfish kind.

You think, perhaps, I am quitting my subject, and proceeding, as it is too often with appearance of justice alleged against me, into irrelevant matter. Pardon me; the end, not only of these Lectures, but of my whole Professorship, would be accomplished,—and far more than that,—if only the English nation could be made to understand that the beauty which is indeed to be a joy forever, must be a joy for all; and that though the idolatry may not have been wholly divine which sculptured gods, the idolatry is wholly diabolic, which, for vulgar display, sculptures diamonds.

18. To go back to the point under discussion. A pearl, or a glass bead, may owe its pleasantness in some degree to its luster as well as to its roundness. But a mere and simple ball of unpolished stone is enough for sculpturesque value. You may have noticed that the quatrefoil used in the Ducal Palace of Venice owes its complete loveliness in distant effect to the finishing of its cusps. The extremity of the cusp is a mere ball of Istrian marble; and consider how subtle the faculty of sight must be, since it recognizes at any distance, and is gratified by, the mystery of the termination of cusp obtained by the gradated light on the ball.

In that Venetian tracery this simplest element of sculptured form is used sparingly, as the most precious that can be employed to finish the façade. But alike in our own, and the French, central Gothic, the ball-flower is lavished on every line—and in your St. Mary's spire, and the Salisbury spire, and the towers of Notre Dame of Paris, the rich pleasantness of decoration,—indeed, their so-called 'decorative style,'—consists only in being daintily beset with stone balls. It is true the balls are modified into dim likeness of flowers; but do you trace the resemblance to the rose in their distant, which is their intended, effect?

19. But, farther, let the ball have motion; then the form it generates will be that of a cylinder. You have, perhaps, thought that pure early English architecture depended for its charm on visibility of construction. It depends for its charm altogether on the abstract harmony of groups of cylinders,[9] arbitrarily bent into moldings, and arbitrarily associated as shafts, having no real relation to construction whatsoever, and a theoretical relation so subtle that none of us had seen it till Professor Willis worked it out for us.

20. And now, proceeding to analysis of higher sculpture, you may have observed the importance I have attached to the porch of San Zenone, at Verona, by making it, among your standards, the first of the group which is to illustrate the system of sculpture and architecture founded on faith in a future life. That porch, fortunately represented in the photograph, from which Plate I. has been engraved, under a clear and pleasant light, furnishes you with examples of sculpture of every kind, from the flattest incised bas-relief to solid statues, both in marble and bronze. And the two points I have been pressing upon you are conclusively exhibited here, namely,—(1) that sculpture is essentially the production of a pleasant bossiness or roundness of surface; (2) that the pleasantness of that bossy condition to the eye is irrespective of imitation on one side, and of structure on the other.