THE aim and scope of this book is sufficiently indicated by its title. I have endeavoured throughout to restrict my attention to questions connected with the origins of art. Points of history and criticism have been touched upon only in so far as they appeared to contribute towards the elucidation of this purely psychological and sociological problem. In order to save space as well as to spare the reader's attention, the descriptive parts have been concentrated as much as possible. As a rule, only one ethnological example, which has been selected as typical, is described in the text, while the corroborating examples are represented by references in the footnotes. And even of these references only such are adduced as have been considered especially significant. Only in one matter have I aimed at completeness, viz. that of reference to authors from whom I have borrowed facts or observations. And whenever in earlier literature I have found theories which have appeared similar to the views advanced in this book, these similarities have been pointed out in the footnotes.