432 'Journal of Comparative Neurology and Psychology. 



TABLE 33. 

 No. 13 Imitating No. 5. 



Summary of the Results of the String Experiment. 



After Xo. 13 bad failed to solve the problem iu bis pivliminary 

 trials, be was allowed to see Xo. 5 pull the string. During the first 

 tests be was confined in the observation-box. After four tests he 

 still failed, when left alone in the cage. He was then jiut into the 

 experimeut cage with Xo. 5. The two animals were strange to each 

 other, and Xo. 18, being the larger, was inclined to follow Xo. 5 

 about the cage, punishing her as opportunity offered. Because of 

 this, he was usually near Xo, 5, when she pulled the string, and 

 often frightened her away before she could get the food. After she 

 bad been removed, Xo. 13, repeatedly searched the food opening, 

 and worked alternately with the three strings nearest the food open- 

 ing. He seemed to have associated the strings with the getting of 

 food. 



When Xo. 5 was put back into the cage, X^«. 13, was more atten- 

 tive than formerly. After Xo. 5 had been removed, Xo. 13, worked 



more continuously at L and at the strings. 



He now singled out 



string 2 from the others. He grabbed the knob at the end of the 

 string, in his hands ; he pounded it against the board, carried it up 

 the wire, and pounded it against the knobs altached to the other 

 strings. Frequently, during this behavior he droj^ped the string and 

 searched L for food. He had advanced one step in his learning. It 

 was not strings that were associated Avith the getting of food, but it 

 was a particular string. 



