TABLE OF CONTENTS. 



CHAPTER SEVENTH. 



Page 



OF THE BLOOD AND CIRCULATION Ill 



CHAPTER EIGHTH. 



OF RESPIRATION . .... 118 



CHAPTER NINTH. 



OF THE SECRETIONS 126 



CHAPTER TENTH. 

 EMBRYOLOGY 131 



SECTION I. 



Of the Egg 131 



Form of the Egg 133 



Formation of the Egg 13<J 



Ovulation 134 



Laying 135 



Composition of the Egg . .... 137 



SECTION II. 

 Development of the Young within the Egg 139 



SECTION III. 

 Zoological Importance of Embryology 153 



CHAPTER ELEVENTH. 

 PECULIAR MODES OF REPRODUCTION 156 



SECTION I. 

 Gemmiparous and Fissiparous Reproduction .... 156 



SECTION II. 

 Alternate and Equivocal Reproduction 158 



