Front matter
Elizabeth L. Baldwin translation
BY KARL GROOS PROFESSOR OF PHILOSOPHY IN THE UNIVERSITY OF BASEL AUTHOR OF THE PLAY OF ANIMALS TRANSLATED WITH THE AUTHOR’S CO-OPERATION By ELIZABETH L. BALDWIN WITH A PREFACE BY J. MARK BALDWIN, Ph. D., hon. D. Sc. (Oxon.) PROFESSOR IN PRINCETON UNIVERSITY
NEW YORK D. APPLETON AND COMPANY 1901
Copyright, 1901, By D. APPLETON AND COMPANY.