CONTENTS xiii 



PART VI 

 THIRD POINT OF VIEW CONSERVATION OF ENERGY 



CHAPTER XXIII PAGE 



THE STUDY OF LIFE AND THE CONSERVATION OF ENERGY 

 NEW PROOF THAT LIFE is A PHENOMENON SUBJECT TO THE 

 LAWS OF MECHANICS ... .141 



BOOK SECOND FACTS 

 PART VII 



PHENOMENA OF LIFE COMPARED WITH PHENOMENA OF 

 NOT-LIVING MATTER 



CHAPTER XXIV 

 MORPHOLOGY OF THE CELL AND ITS MOVEMENTS . . .149 



CHAPTER XXV 

 GENERAL PLAN OF MULTICELLULAR BEINGS . 154 



CHAPTER XXVI 



SPONTANEOUS MOVEMENT . .157 



Tactisms and Tropisms 



