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CONTENTS 



PAGE 



Preface vii 



Introduction xi 



CHAPTER I 

 Man and His Relation to the Living World i 



CHAPTER II 

 Features Common to Man and the Lower Animals i6 



CHAPTER III 

 Man and the Apes 15 



CHAPTER IV 

 The World and the Butterfly 30 



CHAPTER V 

 Life's Background 37 



CHAPTER VI 

 Factors Affecting Animal Life 43 



CHAPTER VII 

 More About Animal Life ^2. 



CHAPTER VIII 

 Land and Sea Compared 58 



CHAPTER IX 

 Special Relationships and Contacts 73 



CHAPTER X 

 The Most Ancient and the Living Animals 91 



CHAPTER XI 

 The Past and the Present 100 



[V] 



