color is a gift just as definitely granted to one person, and denied to another, as an ear for music; and the very first requisite for true judgment of St. Mark’s, is the perfection of that color-faculty which few people ever set themselves seriously to find out whether they possess or not. For it is on its value as a piece of perfect and unchangeable coloring, that the claims of this edifice to our respect are finally rested; and a deaf man might as well pretend to pronounce judgment on the merits of a full orchestra, as an architect trained in the composition of form only, to discern the beauty of St. Mark’s. It possesses the charm of color in common with the greater part of the architecture, as well as of the manufactures, of the East; but the Venetians deserve especial note as the only European people who appear to have sympathized to the full with the great instinct of the Eastern races. They indeed were compelled to bring artists from Constantinople to design the mosaics of the vaults of St. Mark’s, and to group the colors of its porches; but they rapidly took up and developed, under more masculine conditions, the system of which the Greeks had shown them the example: while the burghers and barons of the North were building their dark streets and grisly castles of oak and sandstone, the merchants of Venice were covering their palaces with porphyry and gold; and at last, when her mighty painters had created for her a color more priceless than gold or porphyry, even this, the richest of her treasures, she lavished upon walls whose foundations were beaten by the sea; and the strong tide, as it runs beneath the Rialto, is reddened to this day by the reflection of the frescoes of Giorgione.
§ XXIX. If, therefore, the reader does not care for color, I must protest against his endeavor to form any judgment whatever of this church of St. Mark’s. But, if he both cares for and loves it, let him remember that the school of incrusted architecture is the only one in which perfect and permanent chromatic decoration is possible; and let him look upon every piece of jasper and alabaster given to the architect as a cake of very hard color, of which a certain portion is to be ground down or cut off, to paint the walls with. Once understand this thoroughly, and accept the condition that the body and availing strength of the edifice are to be in brick, and that this under muscular power of brickwork is to be clothed with the defence and the brightness of the marble, as the body of an animal is protected and adorned by its scales or its skin, and all the consequent fitnesses and laws of the structure will be easily discernible: These I shall state in their natural order.
§ XXX. Law I. That the plinths and cornices used for binding the armor are to be light and delicate. A certain thickness, at least two or three inches, must be required in the covering pieces (even when composed of the strongest stone, and set on the least exposed parts), in order to prevent the chance of fracture, and to allow for the wear of time. And the weight of this armor must not be trusted to cement; the pieces must not be merely glued to the rough brick surface, but connected with the mass which they protect by binding cornices and string courses; and with each other, so as to secure mutual support, aided by the rivetings, but by no means dependent upon them. And, for the full honesty and straight-forwardness of the work, it is necessary that these string courses and binding plinths should not be of such proportions as would fit them for taking any important part in the hard work of the inner structure, or render them liable to be mistaken for the great cornices and plinths already explained as essential parts of the best solid building. They must be delicate, slight, and visibly incapable of severer work than that assigned to them.
§ XXXI. Law II. Science of inner structure is to be abandoned. As the body of the structure is confessedly of inferior, and comparatively incoherent materials, it would be absurd to attempt in it any expression of the higher refinements of construction. It will be enough that by its mass we are assured of its sufficiency and strength; and there is the less reason for endeavoring to diminish the extent of its surface by delicacy of adjustment, because on the breadth of that surface we are to depend for the better display of the color, which is to be the chief source of our pleasure in the building. The main body of the work, therefore, will be composed of solid walls and massive piers; and whatever expression of finer structural science we may require, will be thrown either into subordinate portions of it, or entirely directed to the support of the external mail, where in arches or vaults it might otherwise appear dangerously independent of the material within.
§ XXXII. Law III. All shafts are to be solid. Wherever, by the smallness of the parts, we may be driven to abandon the incrusted structure at all, it must be abandoned altogether. The eye must never be left in the least doubt as to what is solid and what is coated. Whatever appears probably solid, must be assuredly so, and therefore it becomes an inviolable law that no shaft shall ever be incrusted. Not only does the whole virtue of a shaft depend on its consolidation, but the labor of cutting and adjusting an incrusted coat to it would be greater than the saving of material is worth. Therefore the shaft, of whatever size, is always to be solid; and because the incrusted character of the rest of the building renders it more difficult for the shafts to clear themselves from suspicion, they must not, in this incrusted style, be in any place jointed. No shaft must ever be used but of one block; and this the more, because the permission given to the builder to have his walls and piers as ponderous as he likes, renders it quite unnecessary for him to use shafts of any fixed size. In our Norman and Gothic, where definite support is required at a definite point, it becomes lawful to build up a tower of small stones in the shape of a shaft. But the Byzantine is allowed to have as much support as he wants from the walls in every direction, and he has no right to ask for further license in the structure of his shafts. Let him, by generosity in the substance of his pillars, repay us for the permission we have given him to be superficial in his walls. The builder in the chalk valleys of France and England may be blameless in kneading his clumsy pier out of broken flint and calcined lime; but the Venetian, who has access to the riches of Asia and the quarries of Egypt, must frame at least his shafts out of flawless stone.
§ XXXIII. And this for another reason yet. Although, as we have said, it is impossible to cover the walls of a large building with color, except on the condition of dividing the stone into plates, there is always a certain appearance of meanness and niggardliness in the procedure. It is necessary that the builder should justify himself from this suspicion; and prove that it is not in mere economy or poverty, but in the real impossibility of doing otherwise, that he has sheeted his walls so thinly with the precious film. Now the shaft is exactly the portion of the edifice in which it is fittest to recover his honor in this respect. For if blocks of jasper or porphyry be inserted in the walls, the spectator cannot tell their thickness, and cannot judge of the costliness of the sacrifice. But the shaft he can measure with his eye in an instant, and estimate the quantity of treasure both in the mass of its existing substance, and in that which has been hewn away to bring it into its perfect and symmetrical form. And thus the shafts of all buildings of this kind are justly regarded as an expression of their wealth, and a form of treasure, just as much as the jewels or gold in the sacred vessels; they are, in fact, nothing else than large jewels,31 the block of precious serpentine or jasper being valued according to its size and brilliancy of color, like a large emerald or ruby; only the bulk required to bestow value on the one is to be measured in feet and tons, and on the other in lines and carats. The shafts must therefore be, without exception, of one block in all buildings of this kind; for the attempt in any place to incrust or joint them would be a deception like that of introducing a false stone among jewellery (for a number of joints of any precious stone are of course not equal in value to a single piece of equal weight), and would put an end at once to the spectator’s confidence in the expression of wealth in any portion of the structure, or of the spirit of sacrifice in those who raised it.
§ XXXIV. Law IV. The shafts may sometimes be independent of the construction. Exactly in proportion to the importance which the shaft assumes as a large jewel, is the diminution of its importance as a sustaining member; for the delight which we receive in its abstract bulk, and beauty of color, is altogether independent of any perception of its adaptation to mechanical necessities. Like other beautiful things in this world, its end is to be beautiful; and, in proportion to its beauty, it receives permission to be otherwise useless. We do not blame emeralds and rubies because we cannot make them into heads of hammers. Nay, so far from our admiration of the jewel shaft being dependent on its doing work for us, it is very possible
“Quivi presso si vedi una colonna di tanta bellezza e finezza che e riputato
