.\... till I h'Hsroxsi': or toads to sound 679 



response to tlie calls from the males. The second time, we separated 

 all the couples in sight, nine I think, and placed the females as 

 before, the males a little farther away. The third tune, we sepa- 

 rated them all, l)iit [)ut the males on the island where the females 

 had been and carried the females at least thirty feet away towards 

 the side where the males had been. In fifteen minutes, m both 

 cases, every female was taken. In the last case one that had at 

 first hopped ten feet in the wrong direction turned completely 

 around in her tracks at the call, and at the next call, started towards 

 the male. 



I lici-c were many interestuig tilings observed during the experi- 

 meiits. lor one thing the males as well as the females responded 

 to tiie call, which they could locate verv acciiratelv. At the begin- 

 ning ot an exj)(Tin\cnt. as soon as the inalcs wvvv put down ihvy 



