246 THE STONES OF VENICE

no roofs at all, in the sense in which the word “roof” is commonly accepted. But every reader who has ever taken the slightest interest in architecture must know that there is a great popular impression on this matter, which maintains itself stiffly in its old form, in spite of all ratiocination and definition; namely, that a flat lintel from pillar to pillar is Grecian, a round arch Norman or Romanesque, and a pointed arch Gothic.

And the old popular notion, as far as it goes, is perfectly right, and can never be bettered. The most striking outward feature in all Gothic architecture is, that it is composed of pointed arches, as in Romanesque that it is in like manner composed of round; and this distinction would be quite as clear, though the roofs were taken off every cathedral in Europe. And yet if we examine carefully into the real force and meaning of the term “roof,” we shall perhaps be able to retain the old popular idea in a definition of Gothic architecture which shall also express whatever dependence that architecture has upon true forms of roofing.

§ 81. In Chap. XIII. of the first volume, the reader will remember that roofs were considered as generally divided into two parts: the roof proper, that is to say, the shell, vault, or ceiling, internally visible; and the roof-mask, which protects this lower roof from the weather. In some buildings these parts are united in one framework; but, in most, they are more or less independent of each other, and in nearly all Gothic buildings there is a considerable interval between them.

Now it will often happen, as above noticed, that owing to the nature of the apartments required, or the materials at hand, the roof proper may be flat, coved, or domed, in buildings which in their walls employ pointed arches, and are, in the straitest sense of the word, Gothic in all other respects. Yet so far forth as the roofing alone is concerned, they are not Gothic unless the pointed arch be the principal form adopted either in the stone vaulting or the timbers of the roof proper.

[Version 0.04: March 2008]