56 TRAITS OF YOUNG CHIMPANZEES 



the interest of the animal practically disappeared, yielded 

 wholly negative results. 



The experimenter succeeded in training him to speak for 

 food as a dog may readily be taught to do. This he did, 

 however, not in imitation of the trainer but to secure the 

 food. 



Throughout the period of observation effort was con- 

 tinually made to interest Chim in human speech and in the 

 production of sounds. He was talked to a great deal and 

 naturally learned to respond properly to certain sounds or if 

 not to the sounds alone, to the situations which they accom- 

 panied. Occasionally he seemed to try to talk when persons 

 were talking in his presence. 



Although superficially considered these speech training 

 tests are discouraging they have served to throw valuable 

 light on certain of the characteristics of the chimpanzee and 

 have made possible the formulation of problems which are 

 well worth experimental attack. 



