TABLE OF CONTENTS 



CHAPTER I PAGE 



INTRODUCTION 11 



CHAPTER II 

 THE ENERGY RELATIONS OF PLANTS AND ANIMALS 20 



CHAPTER III 



THE NATURE AND THE MEANS OF DIGESTION 28 



CHAPTER IV 

 THE WORK OF MUSCLES AND GLANDS 36 



CHAPTER V 

 REFLEX ACTION 46 



CHAPTER VI 

 THE ALIMENTARY CANAL 54 



CHAPTER VII 



THE MOUTH SWALLOWING, SALIVARY DIGESTION 63 



CHAPTER VIII 

 THE MOVEMENTS OF THE STOMACH 70 



CHAPTER IX 

 GASTRIC SECRETION AND DIGESTION '. . . 78 



CHAPTER X 



THE SMALL INTESTINE: ITS MOVEMENTS, SECRETIONS, AND 

 DIGESTIVE PROCESSES. . 



