COLOR AND CERAMICS
The production of ceramics—perhaps the oldest of all the useful arts practised by man; an art with a magnificent history—seems to be entering upon a new era of development. It is more alive today, more generally, more skilfully, though not more artfully practised than ever before. It should therefore be of interest to all lovers of architecture, in view of the increasing importance of ceramics in building, to consider the ways in which these materials may best be used.
Looking at the matter in the broadest possible way, it may be said that the building impulse throughout the ages has expressed itself in two fundamentally different types of structure: that in which the architecture—and even the ornament—is one with the engineering; and that in which the two elements are separable, not in thought alone, but in fact. For brevity let us name that manner of building in which the architecture is the construction, Inherent architecture, and that manner in which the two are separable Incrusted architecture.
To the first class belong the architectures of Egypt, Greece, and Gothic architecture as practised in the north of Europe; to the second belong Roman architecture of the splendid period, Moorish architecture, and Italian Gothic, so called. In the first class the bones of the building were also its flesh; in the second bones and flesh were in a manner separable, as is proven by the fact that they were separately considered, separately fashioned. Ruined Karnak, the ruined Parthenon, wrecked Rheims, show ornament so integral a part of the fabric—etched so deep—that what has survived of the one has survived also of the other; while the ruined Baths of Caracalla the uncompleted church of S. Petronio in Bologna, and many a stark mosque on many a sandy desert show only bare skeletons of whose completed glory we can only guess. In them the fabric was a framework for the display of the lapidary or the ceramic art—a garment destroyed, rent, or tattered by time and chance, leaving the bones still strong, but bare.
This classification of architecture into Inherent and Incrusted is not to be confused with the discrimination between architecture that is Arranged, and architecture that is Organic, a classification which is based on psychology—like the difference between the business man and the poet: talent and genius—whereas the classification which the reader is asked now to consider is based rather on the matter of expediency in the use of materials. Let us draw no invidious comparisons between Inherent and Incrusted architecture, but regard each as the adequate expression of an ideal type of beauty; the one masculine, since in the male figure the osseous framework is more easily discernible; the other feminine, because more concealed and overlaid with a cellular tissue of shining, precious materials, on which the disruptive forces in man and nature are more free to act.
It is scarcely necessary to state that it is with Incrusted architecture that we are alone concerned in this discussion, for to this class almost all modern buildings perforce belong. This is by reason of a necessity dictated by the materials that we employ, and by our methods of construction. All modern buildings follow practically one method of construction: a bony framework of steel—or of concrete reinforced by steel—filled in and subdivided by concrete, brick, hollow fire-clay, or some of its substitutes. To a construction of this kind some sort of an outer encasement is not only æsthetically desirable, but practically necessary. It usually takes the form of stone, face-brick, terra-cotta, tile, stucco, or some combination of two or more of these materials. Of the two types of architecture the Incrusted type is therefore imposed by structural necessity.
The enormous importance of ceramics in its relation to architecture thus becomes apparent. They minister to an architectural need instead of gratifying an architectural whim. Ours is a period of Incrusted architecture—one which demands the encasement, rather than the exposure of structure, and therefore logically admits of the enrichment of surfaces by means of "veneers" of materials more precious and beautiful than those employed in the structure, which becomes, as it were, the canvas of the picture, and not the picture itself. For these purposes there are no materials more apt, more adaptable, more enduring, richer in potentialities of beauty than the products of ceramic art. They are easily and inexpensively produced of any desired shape, color, texture; their hard, dense surface resists the action of the elements, is not easily soiled, and is readily cleaned; being fashioned by fire they are fire resistant.
So much then for the practical demands, in modern architecture, met by the products of ceramic art. The æsthetic demand is not less admirably met—or rather might be.
When, in the sixteenth century, the Renaissance spread from south to north, color was practically eliminated from architecture. The Egyptians had had it, hot and bright as the sun on the desert; we know that the Greeks made their Parian marble glow in rainbow tints; Moorish architecture was nothing if not colorful, and the Venice Ruskin loved was fairly iridescent—a thing of fire-opal and pearl. In Italian Renaissance architecture up to its latest phase, the color element was always present; but it was snuffed out under the leaden colored northern skies. Paris is grey, London is brown, New York is white, and Chicago the color of cinders. We have only to compare them to yellow Rome, red Siena, and pearl-tinted Venice, to realize how much we have lost in the elimination of color from architecture. We are coming to realize it. Color played an important part in the Pan-American Exposition, and again in the San Francisco Exposition, where, wedded to light, it became the dominant note of the whole architectural concert. Now these great expositions in which the architects and artists are given a free hand, are in the nature of preliminary studies in which these functionaries sketch in transitory form the things they desire to do in more permanent form. They are forecasts of the future, a future which in certain quarters is already beginning to realize itself. It is therefore probable that architectural art will become increasingly colorful.
The author remembers the day and the hour when this became his personal conviction—his personal desire. It happened years ago in the Albright Gallery in Buffalo—a building then newly completed, of a severely classic type. In the central hall was a single doorway, whose white marble architrave had been stained with different colored pigments by Francis Bacon; after the manner of the Greeks. The effect was so charming, and made the rest of the place seem by contrast so cold and dun, that the author came then and there to the conclusion that architecture without polychromy was architecture incomplete. Mr. Bacon spent three years in Asia Minor, and elsewhere, studying the remains of Greek architecture, and he found and brought home a fragment of an antefix from the temple of Assos, in which the applied color was still pure and strong. The Greeks were a joyous people. When joy comes back into life, color will come back into architecture.
Ceramic products are ideal as a means to this end. The Greeks themselves recognized their value for they used them widely and wisely: it has been discovered that they even attached bands of colored terra-cotta to the marble mouldings of their temples. How different must have been such a temple's real appearance from that imagined by the Classical Revivalists, whose tradition of the inviolable cold Parian purity of Greek architecture has persisted, even against archæological evidence to the contrary, up to the present day.
In one way we have an advantage over the Greek, if we only had the wit to profit by it. His palette, like his musical scale, was more limited than ours. Nearly the whole gamut of the spectrum is now available to the architect who wishes to employ ceramics. The colors do not change or fade, and possess a beautiful quality. Our craftsmen and manufacturers of face-brick, terra-cotta, and colored tile, after much costly experimentation, have succeeded in producing ceramics of a high order of excellence and intrinsic beauty; they can do practically anything demanded of them; but from that quarter where they should reap the greatest commercial advantage—the field of architecture—there is all too little demand. The architect who should lead, teach and dictate in this field, is often through ignorance obliged to learn and follow instead. This has led to an ignominious situation—ignominious, that is, to the architect. He has come to require of the manufacturer—when he requires anything at all—assistance in the very matter in which he should assist: the determination of color design. It is no wonder that the results are often bad, and therefore discouraging. The manufacturers of ceramics welcome co-operation and assistance on the part of the architect with an eagerness which is almost pathetic, on those rare occasions when assistance is offered.
But the architect is not really to blame: the reason for his failure lies deep in his general predicament of having to know a little of everything, and do a great deal more than he can possibly do well. To cope with this, if his practice warrants the expenditure, he surrounds himself with specialists in various fields, and assigns various departments of his work to them. He cannot be expected to have on his staff a specialist in ceramics, nor can he, with all his manifold activities, be expected to become such a specialist himself. As a result, he is usually content to let color problems alone, for they are just another complication of his already too complicated life; or he refers them to some one whom he thinks ought to know—a manufacturer's designer—and approves almost anything submitted. Of course the ideal architect would have time for every problem, and solve it supremely well; but the real architect is all too human: there are depressions on his cranium where bumps ought to be; moreover, he wants a little time left to energize in other directions than in the practice of his craft. One of the functions of architecture is to reveal the inherent qualities and beauties of different materials, by their appropriate use and tasteful display. An onyx staircase on the one hand, and a portland cement high altar on the other, alike violate this function of architecture; they transgress that beautiful necessity which decrees that precious materials should serve precious uses and common materials should serve utilitarian ends. Now color is a precious thing, and its highest beauties can be brought out only by contrast with broad neutral tinted spaces. The interior walls of a mediaeval cathedral never competed with its windows, and by the same token, a riot of polychromy all over the side of a building is not as effective, even from a chromatic point of view, as though it were confined, say, to an entrance and a frieze. Gilbert's witty phrase is applicable here:
"Where everybody's somebody, nobody's anybody."
Let us build our walls, then, of stone, or brick, or stucco,—for their flat surfaces and neutral tints conduce to that repose so essential to good architectural effect: but let us not rest content with this, but grant to the eye the delight and contentment which it craves, by color and pattern placed at those points to which it is desirable to attract attention, for they serve the same æsthetic purpose as a tiara on the brow of beauty, or a ring on a delicate white hand. But just as jewelry is best when it is most individual, so the ornament of a building should be in keeping with its general character and complexion. A color scheme should not be chosen at random, but dictated by the prevailing tone and texture of the wall surfaces, with which it should harmonize as inevitably as the blossom of a bush with its prevailing tone of stems and foliage. In a building this prevailing tone will inevitably be either cold or warm, and the color scheme just as inevitably should be either cold or warm; that is, there should be a preponderance of cold colors over warm, or vice versa. Otherwise the eye will suffer just that order of uneasiness which comes from the contemplation of two equal masses, whereas it experiences satisfaction in proportionate unequals.
Nothing will take the place of an instinctive colour-sense, but even that needs the training of experience, if the field be new, and a few general principles of all but universal application will not be amiss.
First of all it should be remembered that the intensity of color should be carefully adjusted to its area. It is dangerous to try to use high, pure colors, unrelieved and uncontrasted, in large masses, but the brightest, strongest colors may be used with safety in units of sufficiently restricted size. For harmony, as well as for richness, the law of complementaries, in its most general application, is the safest of all guides, but it must be followed with fine discrimination. Complementary colors are like married pairs, if they find the right adjustment with one another they are happy—that is, there is an effect of beauty—but lacking such adjustment they are worse off together than apart. Every artist who experiments in color soon finds out for himself that instead of using two colors directly complementary, it is better to "split" one of them, that is, use instead of one of them two others, which combined will yield the color in question. For example, the color complementary to red is green-blue. Now green-blue is equidistant between yellow-green and blue-violet, so if for red and blue-green; red, yellow-green and blue-violet be substituted the combination loses its obviousness and a certain harshness without losing anything of its brilliance, or without departing from the optical law involved. Such a combination corresponds to a diminished triad in music.
Another important consideration with regard to color as employed by the architect dwells in those optical changes effected by distance and position: the relative visibility of different colors and combinations of colors as the spectator recedes from them, and the environmental changes which colors undergo—in bright sunlight, in shadow, against the sky, and with relation to backgrounds of different sorts.
The effect of distance is to make colors merge into one another, to lower the values, but not all equally. Yellow loses itself first, tending toward white. The effect of distance, in general, is to disintegrate and decompose, thus giving "vibration" as it is called. A knowledge of these and kindred facts will save the architect from many disappointments and enable him to obtain wonderful chromatic effects by simple means.
Many architects unused to color problems design their ornament with very little thought about the colors which they propose to employ, making it an after-consideration; but the two things should be considered synchronously for the best final effect. There is a cryptic saying that "color is at right angles to form," that is, color is capable of making surfaces advance toward or recede from the eye, just as modelling does; and for this reason, if color is used, a great deal of modelling may be dispensed with. If a receding color is used on a recessed plane, it deepens that plane unduly; while on the other hand if a color which refuses to recede—like yellow for example—is used where depth is wanted, the receding plane and the approaching color neutralize one another, resulting in an effect of flatness not intended. The tyro should not complicate his problem by combining color with high relief modelling, bringing inevitably in the element of light and shade. He should leave that for older hands and concern himself rather with flat or nearly flat surfaces, using his modelling much as the worker in cloisonné uses his little rims of brass—to confine and define each color within its own allotted area. Then, as he gains experience, he may gradually enrich his pattern by the addition of the element of light and shade, should he so decide.
Now as to certain general considerations in relation to the appropriate and logical use of ceramics in the construction and adornment of buildings, exterior and interior. In our northern latitudes care should be taken that ceramics are not used in places and in ways where the accumulation of snow and ice render the joints subject to alternate freezing and thawing, for in such case, unless the joints are protected with metal, the units will work loose in time. On vertical surfaces such protection is not necessary; the use of ceramics should therefore be confined for the most part to such surfaces: for friezes, panels, door and window architraves, and the like. When it is desirable for æsthetic reasons to tie a series of windows together vertically by means of some "fill" of a material different from that of the body of the wall, ceramics lend themselves admirably to the purpose—better than wood, which rots; than iron, which rusts; than bronze, which turns black; and than marble, which soon loses its color and texture in exposed situations of this sort.
On the interior of buildings, the most universal use of ceramics is, of course, for floors, and with the non-slip devices of various sorts which have come into the market, they are no less good for stairs. There is nothing better for wainscoting, and in fact for any surface whatsoever subject to soil and wear. These materials combine permanent protection and permanent decoration. But fired by the zeal of the convert the use of ceramics may be overdone. One easily recalls entire rooms of this material, floors, walls, ceilings, which are less successful than as though a variety of materials had been employed. It is just such variety—each material treated in a characteristic, and therefore different way—that gives charm to so many foreign churches and cathedrals: walls of stone, floors of marble, choir-stalls of carved wood, and rood-screen of metal: it is the difference between an orchestra of various instruments and a mandolin orchestra or a saxaphone sextette. Ceramics should never invade the domain of the plasterer, the mural painter, the cabinet maker. Do not let us, in our zeal for ceramics, be like Bottom the weaver, eager to play every part.
Ceramics have, as regards architecture, a distinct and honorable function. This function should be recognized, taken advantage of, but never overpassed. They offer opportunities large but not limitless. They constitute one instrument of the orchestra of which the architect is the conductor, an instrument beautiful in the hands of a master, and doubly beautiful in concert and contrast with those other materials whose harmonious ensemble makes that music in three dimensions: architectural art.