IV CONTENTS. 



CHAPTER VII. 



EYES AND OTHER OBJECTS 



CHAPTER VIII. 

 VEGETABLE PRODUCTIONS ........ 79 



CHAPTER IX. 

 ORGANIC REMAINS, CRYSTALS, AND ARTIFICIAL OBJECTS . . 93 



CHAPTER X. 

 THE ANIMALCULES AND OTHER MINUTE INHABITANTS or WATER 105 



CHAPTER XI. 

 THE ANIMALCULES, CONTINUED .121 



CHAPTER XII. 

 CIRCULATION OF THE BLOOD .... 133 



