period of advancement of these old methods extends from prehistoric times to the beginning of the nineteenth century. On the walls of the caverns in Altamira and the Dordogne are drawings of mammoths, horses and bison in which, despite the absence of details, the actual approach to nature is at times more sure and masterly than in the paintings of such highly cultured men as Botticelli and Pisanello. The action in some of them is pronounced; and the vision, while simple, is that of men conscious of a need for compactness and balance. Here the art is simply one of outline, heavy and prominent at times, light and almost indistinguishable at others; but this grading of line was the result of a deeper cause than a tool slipping or refusing to mark. It was the consequence of a need for rhythm which could be obtained only by the accentuation of parts. The drawings were generally single figures, and rarely were more than two conceived as an inseparable design. Later, the early primitives used symmetrical groupings for the same purpose of interior decorating. Then came simple balance, the shifting and disguise of symmetry, and with it a nearer approach to the imprévu of nature. This style was employed for many generations until the great step was taken which brought about the Renaissance. The sequential aspect of line appeared, permitting of rhythm and demanding organisation. Cimabue and Giotto were the most prominent exponents of this advance. From that time forward the emotion derived from actual form was looked upon by artists as a necessary adjunct to a picture. With this attitude came the aristocracy of vision and the abrogation of painting as mere exalted craftsmanship.
After that the evolution of art was rapid. In the contemplation of solidly and justly painted figures the artist began to extend his mind into space and to use rhythm of line that he might express himself in depth as well as surfacely. Thus he preconised organisation in three dimensions, and by so doing opened the door on an infinity of æsthetic ramifications. From the beginning, tone balance—that is, the agreeable distribution of blacks, whites and greys—had gone forward with the development of line, so that at the advent of depth in painting the arrangement of tones became the medium through which all the other qualities were made manifest.
In the strict sense, the art of painting up to a hundred years ago had been only drawing. Colour was used only for ornamental or dramatic purposes. After the first simple copying of nature’s tints in a wholly restricted manner, the use of colour advanced but little. It progressed toward harmony, but its dramatic possibilities were only dimly felt. Consequently its primitive employment for the enhancement of the decorative side of painting was adhered to. This was not because the older painters were without the necessary pigments. Their colours in many instances were brighter and more permanent than ours. But they were satisfied with the effects obtained from black and white expression. They looked upon colour as a delicacy, an accessory, something to be taken as the gourmet takes dessert. Its true significance was thus obscured beneath the artists’ complacency. As great an artist as Giorgione considered it from the conventional viewpoint, and never attempted to deviate toward its profounder meanings. The old masters filled their canvases with shadows and light without suspecting that light itself is simply another name for colour.
The history of modern art is broadly the history of the development of form by the means of colour—that is to say, modern art tends toward the purification of painting. Colour is capable of producing all the effects possible to black and white, and in addition of exciting an emotion more acute. It was only with the advent of Delacroix, the first great modern, that the dramatic qualities of colour were intelligently sensed. But even with him the conception was so slight that the effects he attained were but meagrely effective. After Delacroix further experiments in colour led to the realistic translation of certain phases of nature. The old static system of copying trees in green, shadows in black and skies in blue did not, as was commonly believed, produce realism. While superficially nature appeared in the colours indicated, a close observation later revealed the fact that a green tree in any light comprises a diversity of colours, that all sunlit skies have a residue of yellow, and hence that shadows are violet rather than black. This newly unearthed realism of light became the battle cry of the younger men in the late decades of the nineteenth century, and reached parturition in the movement erroneously called Impressionism, a word philologically opposed to the thing it wished to elucidate. The ancients had painted landscape as it appeared broadly at a first glance. The Impressionists, being interested in nature as a manifestation in which light plays the all-important part, transferred it bodily onto canvas from that point of view.
Cézanne, looking into their habits more coolly, saw their restrictions. While achieving all their atmospheric aims, he went deeper into the mechanics of colour, and with this knowledge achieved form as well as light. This was another step forward in the development of modern methods. With him colour began to near its true and ultimate significance as a functioning element. Later, with the aid of the scientists, Chevreul, Bourgeois, Helmholtz and Rood, other artists made various departures into the field of colour, but their enterprises were failures. Then came Matisse who made improvements on the harmonic side of colour. But because he ignored the profounder lessons of Cézanne he succeeded only in the fabrication of a highly organised decorative art. Not until the advent of the Synchromists, whose first public exhibition took place in Munich in 1913, were any further crucial advances made. These artists completed Cézanne in that they rationalised his dimly foreshadowed precepts.
To understand the basic significance of painting it is necessary to revise our method of judgment. As yet no æsthetician has recorded a rationale for art valuation. Taine put forth many illuminating suggestions regarding the fundamentals of form, but the critics have paid scant heed. Prejudice, personal taste, metaphysics and even the predilections of sentiment, still govern the world’s judgments and appreciations. We are slaves to accuracy of delineation, to prettiness of design, to the whole suite of material considerations which are deputies to the organic and intellectual qualities of a work of art. It is the common thing to find criticisms—ever from the highest sources—which praise or condemn a picture according to the nearness of its approach to the reality of its subject. Such observations are confusing and irrelevant. Were realism the object of art, painting would always be infinitely inferior to life—a mere simulacrum of our daily existence, ever inadequate in its illusion. The moment we attach other than purely æsthetic values to paintings—either ancient or modern—we are confronted by so extensive and differentiated a set of tests that chaos or error is unavoidable. In the end we shall find that our conclusions have their premises, not in the work of art itself, but in personal and extraneous considerations. A picture to be a great work of art need not contain any recognisable objects. Provided it gives the sensation of rhythmically balanced form in three dimensions, it will have accomplished all that the greatest masters of art have ever striven for.
Once we divest ourselves of traditional integuments, modern painting will straightway lose its mystery. Despite the many charlatans who clothe their aberrations with its name, it is a sincere reaching forth of the creative will to find a medium by which the highest emotions may most perfectly be expressed. We have become too complex to enjoy the simple theatre any longer. Our minds call for a more forceful emotion than the simple imitation of life can give. We require problems, inspirations, incentives to thought. The simple melody of many of the old masters can no longer interest us because of its very simplicity. As the complicated and organised forces of life become comprehensible to us, we shall demand more and more that our analytic intelligences be mirrored in our enjoyments.
II
PRECURSORS OF THE NEW ERA
The nineteenth century opened with French art in a precarious and decadent condition. To appreciate the prodigious strides made by Géricault and Delacroix, even by Gérard and Gros, one must consider the rabid antagonism of the public toward all ornament and richness in painting and toward all subject-matter which did not inspire thoughts of inflexible simplicity. This attitude was attributable to the social reaction against the excesses of the voluptuous Louis XV. Vien it was who, suppressing the eroticism of Boucher, instigated the so-called classic revival founded on Græco-Roman ideals. The public became so vehement in its praise of this hypocritical and austere art, that Fragonard, that delicious painter of boudoirs, was dismissed as indecent. Even