SOUNDS ASSOCIATED WITH OTHER CREATURES 127 



On another day Chim and D. played still more energetic- 

 ally, swinging on the ropes, jumping on the floor, and chasing 

 each other about. In all their sport Chim was quick to imi- 

 tate any new stunts. D. 's bantering seemed to trouble Pan- 

 zee greatly. She struck at him whenever she could, and 

 uttered the follomng tones loudly and deliberately as she 

 tried to reach him: 



i 



2^y ooh ooh ooh - - ooh ooh ooh ooh ooh ooh ooh ooh 



On a morning when the chimpanzees were alone Chim sat 

 at the opposite end of the room, and Panzee ran to him utter- 

 ing the phrase below. This is the only instance noted of her 

 greeting him entirely on her own initiative, without some 

 evident cause. 



238 



ooh ooh ooh ooh 



Play 



The pasture was the scene of the chimpanzees' activities 

 in the open. Their trips to and fro gave us some of our finest 

 records. 



A good-sized, irregular hill- top spreads out into several 

 fields, divided by stone walls and rail fences. Dotted over it 

 are frequent clumps of young birch trees; and here and there 

 great stone ledges, characteristic of the foot-hills of the 

 White Mountains, emerge from the turf. A birch bordered 



