uniquely his own, a learning and process of reflection has become, the more every particular art, nay, every branch of the same, now renders necessary the completeness of a treatment of it from the individual's standpoint. As a corollary the historical aspect of such a survey and the criticism of works of art, which becomes inevitable, only add yet further to the learning and range of the subject. It is, moreover, essential before we take part in any discussion over the details of matters of artistic import that we should already have seen much and many times. Personally I have no doubt seen a considerable amount, but by no means all that is necessary to enable me to discuss the material of art exhaustively. All such difficulties, however, we may meet with the simple response that it does not lie within the aim of the present work to teach art-criticism, or to bring forward an historical review of such learning, or only to the extent such is necessary to apprehend on philosophical principles the essential and universal aspects of our subject, and their relation to the idea of the beautiful in its realization within the sensuous medium of art. If we keep this aim before us the variety of artistic effects we above indicated need cause us no embarrassment; for despite this complexity the essential character of the subject-matter according to its notional idea is the controlling factor; and although this is frequently lost in accidental matter by virtue of the medium in which it is realized, points of view are none the less in evidence, in which it is as clearly proclaimed. To grasp these aspects, and to develop them in a scientific way, is the very problem which it is the function of philosophy to elucidate. FIRST SUBSECTION ARCHITECTURE