167. That is the first character of the Florentine Cyclopean But secondly; as the joints are so firm, and as the building must never stir or settle after it is built, the sculptor may trust his work to two stones set side by side, or one above another, and carve continuously over the whole surface, disregarding the joints, if he so chooses. Of the degree of precision with which Nicholas of Pisa and his son adjusted their stones, you may judge by this rough sketch of a piece of St. Mary's of the Thorn, in which the design is of panels enclosing very delicately sculptured heads; and one would naturally suppose that the enclosing panels would be made of jointed pieces, and the heads carved separately and inserted. But the Pisans would have considered that unsafe masonry,--liable to the accident of the heads being dropped out, or taken away. John of Pisa did indeed use such masonry, of necessity, in his fountain; and the bas-reliefs _have_ been taken away. But here one great block of marble forms part of two panels, and the mouldings and head are both carved in the solid, the joint running just behind the neck. 168. Such masonry is, indeed, supposing there were no fear of thieves, gratuitously precise in a case of this kind, in which the ornamentation is in separate masses, and might be separately carved. But when the ornamentation is current, and flows or climbs along the stone in the manner of waves or plants, the concealment of the joints of the pieces of marble becomes altogether essential. And here we enter upon a most curious group of associated characters in Gothic as opposed to Greek architecture. 169. If you have been able to read the article to which I referred you, 'Meneau,' in M. Violet le Duc's dictionary, you know that one great condition of the perfect Gothic structure is that the stones shall be 'en de-lit,' set up on end. The ornament then, which on the reposing or couchant stone was current only, on the erected stone begins to climb also, and becomes, in the most heraldic sense of the term, rampant. In the heraldic sense, I say, as distinguished from the still wider original sense of advancing with a stealthy, creeping, or clinging motion, as a serpent on the ground, and a cat, or a vine, up a tree-stem. And there is one of these reptile, creeping, or rampant things, which is the first whose action was translated into marble, and otherwise is of boundless importance in the arts and labours of man.