102 VOICE AND "language" OF CHIMPANZEES 



act on her part. As she reached for his milk, there came this 

 new motive: 



$■ 



^ b # ^ ^ b ^ P =P=^ 



160 



ee - ee - eeh, 



And later this: 



i 



*=^^=^ 



161 



ooh, ooh, 



ooh, ooh, ooh, 



