There are no illustrations to this work, but I have annexed a long list of illustrated works on art. My aim in teaching, and writing, has been consistently to induce my hearers and readers to think and study for themselves. Bad or even good wood-cuts are by no means essential in art-books, for we possess in the British, Christy’s, and South Kensington Museums such invaluable art-collections, that we may write books without illustrations if we can induce readers and students to verify what we say by a diligent study of these specimens. Theoretical generalisation ought always to precede our special studies. We only then know when we are able to systematise, to group, to draw analogies, or to arrange our details according to some general principle. If we enter on any study without having prepared our mind to grasp the connecting links in an artistic or scientific subject, our knowledge of an incoherent mass of details will only dwarf our understanding, instead of brightening and clearing it, and we shall become technically-trained machines, instead of self-conscious and self-reasoning creators in any branch of art. The Art Library at the South Kensington Museum is, without any exaggeration, the completest in the world; it abounds in the best illustrated works of all nations. Art-books with bad or indifferent illustrations, or even with good illustrations, are not so much needed as art-books with unbiased theories, esthetical principles, and philosophical ideas, which may awaken the power of reasoning in both readers and students. It is only too often the case that, in seeing bad illustrations, the student imagines he knows everything about the work spoken of and produced in outlines. He must, however, go and see for himself. Art has its own fairy domain and its own most catholic realm, in which everyone is welcome who can contribute to the improvement, delight, and happiness of man. To induce readers and students to visit, with some fore-thought and fore-knowledge, our vast and unparalleled art-collections, and to convince them, that to detach the study of art from a correct appreciation of the ideas that engendered its forms, is an impossibility, was the task I set myself in writing the pages of this book. LONDON: _October 1876_. CONTENTS. CHAPTER I. PROLEGOMENA. PAGE The phenomena of destruction and combination in Nature--The difference between the sublime and beautiful--Without man no beauty--Science, industry, and art--The utilitarian principle--Choice--The realistic, historical, and critical points of view in art--Crystallisations and their elements --Symmetry and eurythmy--Proportion, action, and expression --Man is the symbol of earthly perfection 1 CHAPTER II. ETHNOLOGY IN ITS BEARING ON ART.