The results produced by this technique, as it was employed in the great period of the art, have no parallel. When Dürer, in the fifteenth century, brought wood and steel engraving to such brilliant perfection, he determined the future history of European engraving, fixing the line of greatest development in the region of black-and-white, where, except for sporadic excursions of debatable merit, it has continued ever since. Fortunately, in Japan, colour and line did not part company, but in combination progressed toward a unique triumph. A print produced by this technique is simply a sheet of paper upon which are impressed, by means of hand-charged wood blocks, a series of patches of colour that combine into a design. In general, each of these patches is flat and unshaded; its edges are sharp, definite, bounded by a line as distinct as the line of the lead used in stained glass. In the print, as in the stained-glass window, only major lines and important colour-masses can be shown; thus elimination of the incidental and selection of what is vital are imperatively demanded of the designer. Salient curves and expressive outlines are the essential requisite. One reason why these prints seem classic is that they are purged of the thousand unimportant and meaningless gradations of tone that are easy to use in a painting and impossible here. Singular purity and loftiness of effect is the result, together with a certain abstract aloofness from reality that has a high æsthetic value. Into the drawing of these few lines, and into the construction of these few flat colour-spaces, went all the artist's sense of proportion and rhythm, grace and dignity, movement and tone. On the flat wall of his printed sheet he devised a pattern that should weave, out of figures and objects, a decorative design upon whose harmonious mosaic the eye would willingly linger. There he played his music to allure and beguile and absorb the spectator. Like his fellow-painters of all Asia, the print-designer did not feel that literal accuracy greatly concerned him. If the figures moved with a stately godlike grace in rhythmic procession, what matter if they were taller or shorter than real beings? If their faces were expressive of a noble calm or a sublime fury, why ask for a detailed mirroring of a real face? If the landscape was beautiful, was it important that the real scene could never look exactly thus?