8 CONTENTS 



PART II 



COMPARATIVE ZOOLOGY 

 CHAPTER IV 



PAGE 



MINERALS AND ORGANIZED BODIES DISTINGUISHED . . .215 



CHAPTER V 

 PLANTS AND ANIMALS DISTINGUISHED . ... . .217 



CHAPTER VI 

 RELATION BETWEEN MINERALS, PLANTS, AND ANIMALS ' . , . 224 



CHAPTER VII 

 LIFE . ,'.--,;.. . ... . .225 



CHAPTER VIII 



ORGANIZATION . . . . r . ^ . . . . . . 227 



1. Cells . . . . . . . . , .228 



2. Tissues . . . . 229 



3. Organs and their Functions ... . . . . 240 



CHAPTER IX 

 NUTRITION . . . . . . . . . . . 244 



CHAPTER X 

 THE FOOD OF ANIMALS . 247 



CHAPTER XI 



How ANIMALS EAT 250 



1. The Prehension of Food 250 



2. The Mouths of Animals . 256 



3. The Teeth of Animals 265 



4. Deglutition, or How Animals Swallow . . . . . 274 



