CONTENTS. 



BOOK ONE. 



INTRODUCTORY. 

 CHAPTER I. 



THE SCIENTIFIC MOOD. 



Mi 



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

 teristics of the Scientific Mood (a) A Passion for Facts 

 (6) Cautiousness (c) Clearness of Vision (d) Sense of 

 Inter-Relations. The Aim of Science. Scientific Method.. 1 



CHAPTER II. 



THE UNITY OF SCIENCE. 



Classification of the Sciences. The Correlation of Knowledge. 

 Need for Criticism of Scientific Work. Unity of Life. 

 Unity of Science. Unity of Nature 25 



CHAPTER III. 



PROGRESSIVENESS OF SCIENCE. 



The First Condition of Scientific Progress. The Fact of Pro- 

 gress. Its Necessity. Scientific Conclusions of the First 

 Magnitude. Factors in Further Progress. Justification 

 of Science. Science and Practical Utility 41 



