ANALYTICAL INDEX AND 



T ABLE 



OF CONTENTS. 



V 



CHAPTER VIIL 



TAGB 



OBSKRVATIONS ON THE Sl^LEEN . . . .116 



Shape of the spleen ill different auimals ....... 116 



Comparative weights of the spleeu . . . . . . . .119 



General considerations . . . . . . . . . .121 



CHAPTER IX. 



OBSERVATIONS UrON THE KIDNEY 



General considerations ...... 



Comparative weight of the Iddneys .... 



Conclusions ....... 



CHAPTER X. 



URINE OF COLD-BLOODED ANIMALS . . . .128 



Fislies ............ 128 



Reptiles ........... 128 



Serpents. .......... 128 



Saurians ........... 129 



Chelonians .......... 129 



Comparison between warm and cold-blooded animals . . . . . .136 



123 

 123 

 124 

 126 



