37^ journal of Comparative Neurology and Psychology. 



TABLE 9. (Continued.) 

 Results of Chute Experiment A and Chute Experiment B. 



II. 



Cases of imitatiou when the imitator was confined during the activity 



of the imitatee 5 



Cases of imitation when both animals were together in the cage 



III. 



Cases of immediate imitatiou 4 



Cases of gradual imitation 1 



IV. 



Cases of imitation in which the imitating animal did not himself experi- 

 ence the result of the act before performing 3 



Cases of imitation in which the imitating animal did experience the result 

 of the act before performing it 2 



3. Rope Experiment. 



A. Description of Device. 



For this experiment a hole 5 cm. square was cut in board D, 26 cm. from 

 the top of the cage, fig. 5. A door was hinged to one side and opened 

 outward. It was cut so as to fit snugly and when closed was flush with the 

 inside of the board. The only evidence of an opening was the sharp line 

 around the square where the door fitted the board. Before this door, and 

 27 cm. from it, an inch rope, h, hung from a screw eye in the top of the 

 cage to the floor. 



In order to get food the animal must climb the rope and, while supporting 

 himself on the rope, push the door open, reach through it and get the food 

 on the outside of the cage. The food was supplied by means of a two- 

 inch leatherette belt connected with the experimenter's table, which stood 

 four feet from the cage. This convenience, together with a string by 

 which the door could be closed after the animal had opened it, made it 

 possible to manage the entire apparatus from the experimenter's table. 



There was nothing on the inside of the cage to denote the food on the 

 outside. 



B. Behavior of No. 2. 



Preliminary trials. — The following preliminary observations were made 

 in the old cage at the Harvard Laboratory. Each trial lasted 30 minutes. 



First trial. At first No. 2 walked about the floor and climbed the 

 front of the cage. He then went about the cage, and once, in passing, 

 touched the rope with his hand. Again he touched it as he went about the 

 cage. He was very active and ran aboufe the cage very rapidly, but made 

 no effort to climb the rope. 



