CONTENTS. 



CHAPTER I. PAGE 



The Cell 1 



CHAPTER II. 

 Chemical Constituents of the Body and Food 24 



CHAPTER III. 

 Digestion 46 



CHAPTER IV. 

 Absorption 135 



CHAPTER V. 

 The Blood 166 



CHAPTER VI. 

 The Circulation 219 



CHAPTER VII. 

 Respiration 334 



CHAPTER VIII. 

 Secretion '. 398 



CHAPTER IX. 

 Metabolism 467 



CHAPTER X. 

 Animal Heat 506 



CHAPTER XL 

 The Muscles 528 



CHAPTER XII. 

 Voice and Speech 563 



CHAPTER XIII. 

 Electro-physiology 575 



CHAPTER XIV. 

 Nervous System 596 



(vii) 



