THECA KARY H80,205 June 5, 1952 Q72 (The rights of translation and of reproduction are reserved.) (general) PREFACE. My object in writing this volume has been to provide such of the general public as have the appetite and digestion for this kind of mental food-stuff with some account of the teachings of the modern philosophy of evolution in the matter of science and conduct. The book makes no pretension to be a scientific treatise, but at the same time I would fain hope that it breathes the scientific spirit. It propounds no final system of philosophy, and yet I trust that neither philosophy nor system are wholly absent. It lays no claim to originality, but still I hope it may show some signs of individual assimilation. It is throughout tolerably plain-spoken, and yet it has been my sincere desire to avoid giving offence to any. Some of the chapters have formed the basis of lectures, and have retained somewhat of their lecture form; and throughout it has been my tendency to fancy myself rather speaking to than writing for my readers. If this has led to a style too familiar, to an apparent want of |