44 TRAITS OF YOUNG CHIMPANZEES 



initiative and versatility of this chimpanzee are remarkable in contrast 

 with those of Julius (an orang-utan). 



A few days later, in summary comment on the behavior of 

 Chim in this initial type of situation, the following record 

 appears: 



In the banana and string experiment he has thus far used his experi- 

 ence and skill in climbing with or without rope, in jumping and in swing- 

 ing from it. His versatility and skill in securing the banana thus are 

 very great. The methods which he has thus far used with success are 

 (1) springing from floor and seizing banana; (2) seizing rope, running 

 back and swinging on same until banana can be reached; (3) seizing rope 

 while above floor, swinging on same by body contraction and seizing 

 banana; (4) mounting beam, drawing up rope, holding same with one 

 hand and grasping banana with other as he jumped toward it; (5) 

 swinging from under side of beam and trying to grasp it as he hurtled 

 past. I record this as successful because he evidently could get the 

 banana in this way if permitted to take the risk. He also examined the 

 possibihty of climbing along rafter and has given indication of desire to 

 jump from beam directly toward banana. 



The second test of insight was made with the aid of a 

 bottle about 12 inches long, 4 inches wide at the bottom and 

 2 inches at the top, the neck of which projected through a 

 hole just sufficient to allow for it in a box 6 inches deep, 20 

 inches long by 15 inches wide, the side of which next the floor 

 had been removed. Into this bottle in the presence of Chim 

 a banana was dropped. As the neck of the bottle was too 

 small to admit the haiid of the animal, the easy way to secure 

 the reward was to turn the box over, pull the bottle out and 

 inverting it, shake the banana out of it. 



With this device Chim was given several opportunities to 

 experiment. The greater part of his time and effort was 

 given to trying to force his hand into the bottle or attempting 

 to haul the bottle, neck first, through the hole in the box, a 



