32 



Frogs of the Okefinokee Swamp 



Crest of Ovulation 



Table 13 



Quite obviously the evidence of minima, etc. for Rana aesopus, Scaphio- 

 pus holbrookii, Pseudacris ocularis, Rana virgatipes and Rana heckscheri is 

 too scanty to be sure of their place in this table. In Okefinokee swamp 

 humidity is the great factor in precipitating ovulation. 



