viii CONTENTS 



CHAP. PAGE 



XIV. The Regulation of Temperature . . 248 



XV. The Nervous System : 



Part I. The Neurone and the Nervous 



Impulse .... 252 



Part II. The Central Nervous System . 264 



Part III. Reflex Action . . .272 



Part IV. The Exteroceptive System . 281 



1. Cutaneous and Deep Sensation . 282 



2. Vision . . . . .286 



3. Hearing ..... 300 



4. Smell and Taste . . . .307 



5. Motor Functions of the Cortex . 309 



6. Speech . . . . .311 



7. The Functions of the Cerebrum . 314 

 Part V. The Proprioceptive System . 318 

 Part VI. The Autonomic System . . 327 



XVI. Muscular Activity and Fatigue . . 336 



XVII. Reproduction 342 



XVIII. Defence 368 



Index ....... 379 



