384 'Journal of Comparative Neurology and Psychology. 



force of ber effort affected the board than the door. Then she changed 

 back to the right hand and planted it squarely in the center of the door, 

 neither her fingers nor palm touching the board. She gave a hard push and 

 the door opened. Time : two minutes. She got the piece of food near 

 the door and thrust her arm farther out and got the piece of banana on 

 the place next below. Then she pushed the door open as fast as I closed 

 it and got food three times. This she repeated ten times as rapidly as 

 the device was reset. 



Her hand when placed flat against the door reached from the top to 

 the bottom and was almost as broad as the door. To open the door she 

 must place her hand in the center of it, in order not to strike the edges 

 of the board in some place. 



Summary of Behavior of No. 4 in the Rope Experiment. 

 The problem as it came to No. 4 was different from the problem of No. 2. 

 She did not need to learn to climb the rope. She did this as if it were a 

 familiar act during her first few minutes in the cage. Wliat she had to 

 learn was to open the food door. Her own unaided efforts helped her 

 not at all, and during the last four preliminary trials she kept entirely 

 away from the rope. Her first observation of the imitatee attracted her 

 again to the rope and to the food door, but she did nothing except to 

 nose about the door. Her second test again directed her attention to 

 the door and possibly increased that attention. The third test augmented 

 Iier attention to the door and she rubbed her palm over it and fingered 

 the edges. After the fourth test her interest seemed to lag, but after the 

 fifth her attention was as great as after the third. In both the third and 

 fifth tests she used her hand at the proper place and in much the same 

 manner as had the performing animal. The sixth test served to make 



TABLE 11. 

 No. 4 Imitating No. 2. 



No. 4 Imitating No. 6. 



Aug. 11 . 

 Aug. 11 . 

 Aug. 12. 

 Aug. 12. 



Totals . 



18 

 7 

 9 



17 



65 



26 



4 

 2 

 3 

 1 



15 



10 



10 



10 



2 



52 



