The Frog Book 



Plate L> 



Fig. 251 (i). — Structure study of Rana diayloiiii Bd. and Gird. (Female. Half-grown.) South San Francisco, Cal. 



Fig. 252 (2).— Photograph of foot of Rana draylonii (female) to show size and number of the tubercles on the sole and 

 under the joints of the toes. (In water.) 



Fig. 253 (3). — Frog of Figs. 251 and 254. Note the length of the fingers. 



Fig. 254 (4). — Photograph (in water) to show one possibility in size and arrangement of spots. 



