VIH CONTENTS. 



CHAPTER VII. 



PAGE 



DATA CONCERNING THE BRAIN DERIVED FROM THE STUDY OP THE 



NERVOUS SYSTEM OF INVERTEBRATES 107 



PART III. 



THE BRAIN OF VERTEBRATES AND THE INTELLI- 

 GENCE OF LOWER ANIMALS GENERALLY. 



CHAPTER VIII. 

 THE BRAIN OF FISHES AND OF .AMPHIBIA . . . . .111 



CHAPTER IX. 







THE BRAIN OF REPTILES AND OF BIRDS ...... 125 



CHAPTER X. 

 THE SCOPE OF MIND ..'....... 138 



CHAPTER XI. 

 REFLEX ACTION AND UNCONSCIOUS COGNITION . . , . , .156 



CHAPTER X7I. 

 SENSATION, IDEATION, AND PERCEPTION 168 



CHAPTER XIII. 

 CONSCIOUSNESS IN LOWER ANIMALS 195 



CHAPTER XIV. 

 INSTINCT : ITS NATURE {AND ORIGIN 220 



CHAPTER XV. 



NASCENT REASON, EMOTION, IMAGINATION AND VOLITION . . . 236 



