The Stones of Venice, Volume 1 (of 3)

by John Ruskin

THE ARCHIVOLT AND APERTURE.

XIX.

ARCHIVOLT DECORATION. AT VERONA.

§ I. If the windows and doors of some of our best northern Gothic buildings were built up, and the ornament of their archivolts concealed, there would often remain little but masses of dead wall and unsightly buttress; the whole vitality of the building consisting in the graceful proportions or rich mouldings of its apertures. It is not so in the south, where, frequently, the aperture is a mere dark spot on the variegated wall; but there the column, with its horizontal or curved architrave, assumes an importance of another kind, equally dependent upon the methods of lintel and archivolt decoration. These, though in their richness of minor variety they defy all exemplification, may be very broadly generalized.

Of the mere lintel, indeed, there is no specific decoration, nor can be; it has no organism to direct its ornament, and therefore may receive any kind and degree of ornament, according to its position. In a Greek temple, it has meagre horizontal lines; in a Romanesque church, it becomes a row of upright niches, with an apostle in each; and may become anything else at the architect’s will. But the arch head has a natural organism, which separates its ornament into distinct families, broadly definable.

§ II. In speaking of the arch-line and arch masonry, we considered the arch to be cut straight through the wall; so that, if half built, it would have the appearance at a, [Fig. LXIX.] But in the chapter on Form of Apertures, we found that the side of the arch, or jamb of the aperture, might often require to be bevelled, so as to give the section b, [Fig. LXIX.] It is easily conceivable that when two ranges of voussoirs were used, one over another, it would be easier to leave those beneath, of a smaller diameter, than to bevel them to accurate junction with those outside. Whether influenced by this facility, or by decorative instinct, the early northern builders often substitute for the bevel the third condition, c, of [Fig. LXIX.]; so that, of the three forms in that figure, a belongs principally to the south, c to the north, and b indifferently to both.

Fig. LXIX.

§ III. If the arch in the northern building be very deep, its depth will probably be attained by a succession of steps, like that in c; and the richest results of northern archivolt decoration are entirely based on the aggregation of the ornament of these several steps; while those of the south are only the complete finish and perfection of the ornament of one. In this ornament of the single arch, the points for general note are very few.

§ IV. It was, in the first instance, derived from the classical architrave,[91] and the early Romanesque arches are nothing but such an architrave, bent round. The horizontal lines of the latter become semicircular, but their importance and value remain exactly the same; their continuity is preserved across all the voussoirs, and the joints and functions of the latter are studiously concealed. As the builders get accustomed to the arch, and love it better, they cease to be ashamed of its structure: the voussoirs begin to show themselves confidently, and fight for precedence with the architrave lines; and there is an entanglement of the two structures, in consequence, like the circular and radiating lines of a cobweb, until at last the architrave lines get worsted, and driven away outside of the voussoirs; being permitted to stay at all only on condition of their dressing themselves in mediæval costume, as in the plate opposite.

§ V. In other cases, however, before the entire discomfiture of the architrave, a treaty of peace is signed between the adverse parties on these terms: That the architrave shall entirely dismiss its inner three meagre lines, and leave the space of them to the voussoirs, to display themselves after their manner; but that, in return for this concession, the architrave shall have leave to expand the small cornice which usually terminates it (the reader had better look at the original form in that of the Erechtheum, in the middle of the Elgin room of the British Museum) into bolder prominence, and even to put brackets under it, as if it were a roof cornice, and thus mark with a bold shadow the terminal line of the voussoirs. This condition is seen in the arch from St. Pietro of Pistoja, [Plate XIII.], above.

§ VI. If the Gothic spirit of the building be thoroughly determined, and victorious, the architrave cornice is compelled to relinquish its classical form, and take the profile of a Gothic cornice or dripstone; while, in other cases, as in much of the Gothic of Verona, it is forced to disappear altogether. But the voussoirs then concede, on the other hand, so much of their dignity as to receive a running ornament of foliage or animals, like a classical frieze, and continuous round the arch. In fact, the contest between the adversaries may be seen running through all the early architecture of Italy: success inclining sometimes to the one, sometimes to the other, and various kinds of truce or reconciliation being effected between them: sometimes merely formal, sometimes honest and affectionate, but with no regular succession in time. The greatest victory of the voussoir is to annihilate the cornice, and receive an ornament of its own outline, and entirely limited by its own joints: and yet this may be seen in the very early apse of Murano.