LIST OF TABLES. x {[ 



PAGE 



Tables showing the length of the alimentary canal in different animals . . .92, 93 



Tables showing the comparative weight of the pancreas in different animals . . .101 



Table showing the comparative weight of the liver of animals . . . . .113 



Table showing the weight of the body and spleen in different animals . . . .119 



Table showing the comparative weight of the spleen in animals . . . .120 



Table showing the comparative weight of the kidneys in animals . . . .125 

 Table showing the specific gravity of the urine in its normal condition, and during starvation 



and a change of diet ....... 130 



Table showing the loss of weight and the amount of urine excreted by Chclonians deprived of 



food and drink ........ 135 



Table showing the effects of starvation and thirst, also of a change of diet upon the urine of 



Chclonians 



137 



