iV CONTENTS. 



CHAPTER YIII. 



PAGE 



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 XL 

 Reflex Action and Unconscious Cognition. , • • 156 



CHAPTER XXL 

 Sensation, Ideation, and Perception . • • • . lt)8 



CHAPTER XIII. 

 Consciousness in lower Animals 195 



CHAPTER XIV. 

 Instinct: its Nature and Origin . • # • . 220 



CHAPTER XV. 



Nascent Reason, Emotion, Imagination and Volition . 23G 



CHART I^]R XVI. 

 The Brain of Quadrupeds and some other Mammals . 25'lf 



CHAPTER XVII. 

 The Brain of Quadrumana 286 



