CONTENTS. 



BOOK ONE, 



INTRODUCTOEY. 



CHAPTER I. 



THE SCIENTIFIC MOOD. 



PAGB 



The Meaning of Science. — A Contrast of Moods. — Charac- 

 teristics of the Scientific Mood. — (a) A Passion for 

 Facts. — (b) Cautiousness. — (c) Clearness of Vision. — 

 (d) Sense of Inter-Relations. — The Aim of Science. — 

 The Method of Science 1 



CHAPTER II. 



THE UNITY OF SCIENCE. 



Classification of the Sciences. — Correlation of Knowledge* 

 —Need for Criticism of Scientific Work.— The Unity of 

 Life.— The Unity of Science.— The Unity of Nature. ... 25 



CHAPTER III. 



PROGRESSIVENESS OF SCIENCE. 



The First Condition of Progress. — The Fact of Progress. — 

 Its Necessity. — Scientific Conclusions of the First Mag- 

 nitude. — Factors in Further Progress. — Justification of 



Science.— Science and Practical Utility 41 



vii 



