CONTENTS 



PART I 



The History and Significance of Science 



CHAPTER PAGE 



I. THE MEANING OF SCIENCE TO MANKIND 3 



II. THE ORIGINS OF SCIENCE IN THE ANCIENT WORLD . . 11 



III. THE DECLINE OF ANCIENT LEARNING 42 



IV. THE EMERGENCE OF MODERN SCIENCE 66 



V. THE FURTHER GROWTH OF SCIENCE . . 94 



PART II 



The Science of Biology 



VI. THE BIOLOGICAL SCIENCE OF THE MODERN PERIOD: 



THE CELL-DOCTRINE 119 



VII. THE BIOLOGICAL SCIENCE OF THE MODERN PERIOD: 



THE THEORY OF ORGANIC EVOLUTION 155 



VIII. CURRENT PROBLEMS AND METHODS OF ZOOLOGICAL 



SCIENCE 187 



PART III 



The Present Importance of Science 



IX. PHILOSOPHICAL AND PSYCHOLOGICAL ASPECTS OF 



SCIENCE 223 



X. THE NATURE AND MEANING OF SCIENTIFIC RESEARCH 242 

 XI. THE ROLE OF SCIENCE IN THE SOLUTION OF SOCIAL 



PROBLEMS 263 



XII. THE HIGHER VALUES OF SCIENCE 290 



XIII. MANKIND AND THE FURTHER PROGRESS OF SCIENCE . . 314 



INDEX .' . . . 321 



vii 



