392 yournal of Comparative Neurology and Psychology. 



he went to the opeuiug and put his hands on the lower edge of the frame. 

 In the third and fourth trials No. 3 was wholly iiidifCerent to the device, 

 not going to it once. 



He was given a fifth trial of fifteen minutes in the new cage at the New 

 York Zoological Park. During this trial he went about the cage leisurely, 

 but gave the paper no attention. 



Imitation tests. — No. 3 imitating No. 2. — The two animals were in the 

 cage together in each of the following tests. 



First test. No. 2 tore the paper and got food, and No. 3 got some of the 

 seeds which No. 2 dropped. No. 3 did not go to the paper. This was repeated 

 twice; the third time No. 3 went to the paper and looked. The fourth and 

 fifth times No. 3 did not see, but the sixth time he went to the paper before 

 the screen was lifted and turned away as No. 2 tore the paper. The seventh 

 time No. 3 got food through the hole after the paper had been torn by No. 2. 



No. 2 was now taken out. No. 3 looked at the paper, but became inter- 

 ested in the other monkeys, who were chattering in the nearby cages. He paid 

 no further attention to the paper during the fifteen minutes. 



Second test. No. 2 tore a hole in the paper and stepped back. No. 3 went 

 up, thrust his hand through and got food. No. 2 was now taken out for 

 five minutes and No. 3 went to the paper and examined it. He did not 

 bite or push. This he repeated four times. 



Third test. No. 2 was now put back and immediately got food. No. 3 

 searched the box after him, but got nothing. When No. 2 opened it again 

 No. 3 got food, but he failed the next time. No. 2 was now removed. No. 3 

 went to the place and bit at the paper, but not hard enough to break it 

 through. This he repeated three times. 



Fourth test. No. 2 opened the paper and No. 3 grabbed the torn paper 

 and pulled it away. This was repeated twice and then, while No. 2 was 

 eating. No. 3 went to the paper, put his nose against it and pushed. He did 

 not, however, use his teeth. After No. 2 bit through the paper the next two 

 times No. 3 used his hands to tear a larger opening. 



When No. 2 was removed from the cage No. 3 went at once to the paper 

 and bit through and got food. This he repeated four times, getting food the 

 last time in ten seconds. 



TABLE 1.5. 

 No. 3 Imitating No. 2. 



