A CHIMPANZEE CALLER I 87 



caused him to refuse, because he did not want the other to 

 share my attentions.. I gave the food sound, but I could 

 not induce the visitor to come nearer. I failed to get a 

 view of him so as to tell how large he was, but from his 

 voice I judged that he must have been about full-grown. 

 Whether he was quite alone or not I was not able to tell ; 

 but only the one voice could be heard. 



Another time while I was sitting quite alone, a young 

 chimpanzee, perhaps five or six years old, appeared at 

 the edge of a small opening of the bush. He plucked a 

 bud or leaf from a small plant. He raised it to his nose 

 and smelt it. He picked three or four buds of different 

 kinds, one or two of which he put in his mouth. He 

 turned aside the dead leaves that were lying on the ground, 

 as if he expected to find something under them. I spoke 

 to him, using the call sound ; he instantly turned his eyes 

 towards me, but made no reply. I uttered the food sound, 

 and he replied but did not move. He betrayed no sign of 

 fear and but little of surprise. He surveyed the cage and 

 myself. I repeated the sound two or three times. He 

 refused to approach any nearer. He turned his head from 

 side to side for a moment, as if in doubt which way to go ; 

 then he turned aside and disappeared in the bush. He 

 did not run or start away as if in great fear, but by the 

 sound of the shaking bushes it could be told that he 

 increased his speed after he had once disappeared from 

 view. 



One day I had been for a stroll with Moses and the boy. 

 As we returned to the cage we saw a chimpanzee about 

 half grown ; he was crossing a rugged little path about 



