ANALYTICAL INDEX AND TABLE OF CONTENTS. 



CHAPTER VIII. 



OBSERVATIONS ON THE SPLEEN 



Shape of tlit; spleen in different animals 



Comparative weights of the spleen .... 



General considerations ...... 



116 

 116 

 119 

 121 



CHAPTER IX. 



OBSERVATIONS UPON THE KIDNEY 



General considerations . 

 Comparative weight of the kidneys 

 Conclusions 



123 



123 

 124 

 12G 



CHAPTER X. 



URINE OF COI 



Fishes . 

 Reptiles 



Serpents . 



Saurians . 



Cheloniana 

 Comparison between warm anil cold-blooded animals 



n-BLOODED ANIMALS 



128 

 128 

 128 

 128 

 129 

 129 

 136 



