TABLE OF CONTENTS. Ill 



Page 



CHAPTER SEVENTH. 



OF THE BLOOD AND CIRCULATION .... 86 



CHAPTER EIGHTH. 

 OF RESPIRATION ... 92 



CHAPTER NINTH. 



OF THE SECRETIONS 98 



CHAPTER TENTH. 

 EMBRYOLOGY 102 



SECTION I. 



Of the Egg 102 



Form of the Egg 103 



Formation of the Egg 104 



Ovulation 105 



Laying 105 



Composition of the Egg 107 



SECTION H. 

 Development oftJie Young within the Egg 109 



SECTION in. 

 Zoological Importance of Embryology 122 



CHAPTER ELEVENTH. 



PECULIAR MODES OF REPRODUCTION 125 



SECTION I. 

 Gemmiparous and Fissiparoiis Generation ..... 125 



SECTION H. 

 Alternate and Equivocal Reproduction 127 



