Carved ornament and decorative colour come within the especial province of the architect. In some styles, such as the Saracenic, and in many buildings, they form the Alpha and the Omega of the decoration. But, as mentioned above, one of the great merits of architecture as an art is that it affords room for the display of the works of the sculptor and the painter, not only in such a manner as not to interfere with its own decorative construction, but so as to add meaning and value to the whole. No Greek temple and no Gothic cathedral can indeed be said to be perfect or complete without these adjuncts; and one of the principal objects of the architects in Greece or in the Middle Ages was to design places and devise means by which these could be displayed to advantage, without interfering either with the construction or constructive decoration. This was perhaps effected more successfully in the Parthenon than in any other building we are acquainted with. The pediments at either end were noble frames for the exhibition of sculpture, and the metopes were equally appropriate for the purpose; while the plain walls of the cella were admirably adapted for paintings below and for a sculptured frieze above.

The deeply recessed portals of our Gothic cathedrals, their galleries, their niches and pinnacles, were equally appropriate for the exuberant display of this class of sculpture in a less refined or fastidious age; while the mullion-framed windows were admirably adapted for the exhibition of a mode of coloured decoration, somewhat barbarous, it must be confessed, but wonderfully brilliant.

The system was carried further in India than in any other country except perhaps Egypt. Probably no Hindu temple was ever erected without being at least intended to be adorned with Phonetic sculpture, and many of them are covered with it from the plinth to the eaves, in strong contrast with the Mahomedan buildings that stand side by side with them, and which are wholly devoid of any attempt at this kind of decoration. The taste of these Hindu sculptures may be questionable, but such as they are they are so used as never to interfere with the architectural effect of the building on which they are employed, but always so as to aid the design irrespective of the story they have to tell. There is probably no instance in which their removal or their absence would not be felt as an injury from an architectural point of view.

It is difficult now to ascertain whether Phonetic painting was used to the same extent as sculpture in ancient times. From its nature it is infinitely more perishable, and a bucket of whitewash will in half an hour obliterate the work of years, and, strange to say, there are ages, both in the East and the west, where men’s minds are so attuned that they consider whitewash a more fitting decoration than coloured paintings of the most elaborate and artistic character. While this is so we need hardly wonder that our means of forming a distinct opinion on this subject are somewhat limited.

Be this as it may, it is still one of the special privileges of architecture that she is able to attract to herself these phonetic arts, and one of the greatest merits a building can possess is its affording appropriate places for their display without interfering in any way with the special department of the architect. But it is always necessary to distinguish carefully between what belongs to the province of each art separately. The work of the architect ought to be complete and perfect without either sculpture or painting, and must be judged as if they were absent; but he will not have been entirely successful unless he has provided the means by which the value of his design may be doubled by their introduction. It is only by the combination of the Phonetic utterance with the Technic and Æsthetic elements that a perfect work of art has been produced, and that architecture can be said to have reached the highest point of perfection to which it can aspire.

XIV.—Uniformity.

Considerable confusion has been introduced into the reasoning on the subject of architectural Uniformity from the assumption that the two great schools of art—the classical and the mediæval—adopted contrary conclusions regarding it, Formality being supposed to be the characteristic of the former, Irregularity of the latter. The Greeks, of course, when building a temple or monument, which was only one room or one object, made it exactly symmetrical in all its parts; but so did the Gothic architects when building a church or chapel or hall, or any single object: in ninety-nine instances out of a hundred, a line drawn down the centre divides it into two equal and symmetrical halves; and when an exception to this occurs, there is some obvious motive for it.

But where several buildings of different classes were to be grouped, or even two temples placed near one another, the Greeks took the utmost care to prevent their appearing parts of one design or one whole; and when, as in the instance of the Erechtheium,[[15]] three temples are placed together, no Gothic architect ever took such pains to secure for each its separate individuality as the Grecian architect did. What has given rise to the error is, that all the smaller objects of Grecian art have perished, leaving us only the great monuments without their adjuncts.

If we can conceive the task assigned to a Grecian architect of erecting a building like one of our collegiate institutions, he would without doubt have distinguished the chapel from the refectory, and that from the library, and he would have made them of a totally different design from the principal’s lodge, or the chambers of the fellows and students; but it is more than probable that, while carefully distinguishing each part from the other, he would have arranged them with some regard to symmetry, placing the chapel in the centre, the library and refectory as pendants to one another, though dissimilar, and the residences so as to connect and fill up the whole design. The truth seems to be that no great amount of dignity can be obtained without a certain degree of regularity; and there can be little doubt that artistically it is better that mere utilitarian convenience should give way to the exigencies of architectural design than that the latter should be constrained to yield to the mere prosaic requirements of the building. The chance-medley manner in which many such buildings were grouped together in the Middle Ages tells the story as clearly, and may be productive of great picturesqueness of effect, but not of the same nobility as might have been obtained by more regularity. The highest class of design will never be reached by these means.

It is not difficult to discover, at least to a certain extent, that the cause of this is that no number of separate units will suffice to make one whole. A number of pebbles will not make a great stone, nor a number of rose-bushes an oak; nor will any number of dwarfs make up a giant. To obtain a great whole there must be unity, to which all the parts must contribute, or they will remain separate particles. The effect of unity is materially heightened when to it is added uniformity: the mind then instantly and easily grasps the whole, knows it to be one, and recognises the ruling idea that governed and moulded the whole together. It seems only to be by the introduction of uniformity that sufficient simplicity for greatness can be obtained, and the evidence of design made so manifest that the mind is satisfied that the building is no mere accumulation of separate objects, but the production of a master-mind.