31836 THE COLOUR-SENSE: Its Origin and Development. AN ESSAY IN COMPARATIVE PSYCHOLOGY. BY GRANT ALLEN, B.A., AUTHOR OF "PHYSIOLOGICAL ÆSTHETICS." BOSTON: HOUGHTON, OSGOOD, & COMPANY. PREFACE. on THE materials which form the nucleus of the present volume were originally collected as part of the basis for a chapter on "the Genesis of Esthetics" in my little work Physiological Œsthetics," published some two years since. I found, however, when I came to arrange them, that the subject had grown under my hands, and that it would be impossible fully to develop my ideas except in the form of a separate treatise. The omission seemed all the more desirable, because my former work dealt only with Esthetics as an element of human psychology: while the materials here collected refer rather to the wider science which studies the phenomena of mind throughout the whole animal world. Accordingly, I deferred their publication for the time, only mentioning my original intention in a footnote on p. 156 of "Physiological Esthetics." But most of the critics who kindly noticed that little work were so unanimous in calling attention to the hints which I had thrown out with reference to the Colour-Sense, and the love for colour which forms such a striking characteristic of mankind, that I determined on following up the subject on a wider basis, and eluci b |