124 Journal of Comparative Neurology and Psychology. 



TABLE I. 



Body Weight 

 IN Grams. 



R. pipiens 14 g 



23 .2 

 30.8 

 43-^ 



R. esculenta j r n 



22.0 



35-0 

 40.2 



R. temporaria irn 



23.1 

 28.0 

 31-3 



Body Weight 

 PER Millime- 

 ter IN Grams. 



. I02 



•13s 

 .168 

 .218 



114 



134 

 199 

 208 



107 



137 

 162 



177 



10 



K 



20 



PF» 



30 



35 



40 



^ 



CHART I. 



Showing the average amount of body weight for each running millimeter of totaflength. 

 R. p. = Rana pipiens. 

 R. e. = Rana esculenta. 

 R. t. = Rana temporaria. 



