IV. ST. MARK’S 95

the habit of supposing the external superficies of a piece of masonry to be some criterion of its thickness. But, as soon as he gets acquainted with the incrusted style, he will find that the Southern builders had no intention to deceive him. He will see that every slab of facial marble is fastened to the next by a confessed rivet, and that the joints of the armour are so visibly and openly accommodated to the contours of the substance within that he has no more right to complain of treachery than a savage would have, who, for the first time in his life seeing a man in armour, had supposed him to be made of solid steel. Acquaint him with the customs of chivalry, and with the uses of the coat of mail, and he ceases to accuse of dishonesty either the panoply or the knight.

These laws and customs of the St. Mark’s architectural chivalry it must be our business to develope.

§ 26. First, consider the natural circumstances which give rise to such a style. Suppose a nation of builders, placed far from any quarries of available stone, and having precarious access to the mainland where they exist; compelled therefore either to build entirely with brick, or to import whatever stone they use from great distances, in ships of small tonnage, and, for the most part, dependent for speed on the oar rather than the sail. The labour and cost of carriage are just as great, whether they import common or precious stone, and therefore the natural tendency would always be to make each shipload as valuable as possible. But in proportion to the preciousness of the stone, is the limitation of its possible supply; limitation not determined merely by cost, but by the physical conditions of the material, for of many marbles, pieces above a certain size are not to be had for money. There would also be a tendency in such circumstances to import as much stone as possible ready sculptured, in order to save weight; and therefore, if the traffic of their merchants led them to places where there were ruins of ancient edifices, to ship the available fragments of them home. Out of this supply of marble, partly

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