368 yournal of Comparative Neurology and Psychology. 



in that No. 13 and No. 4 both repeated the act which they had seen imme- 

 diately. No. 11, on the other hand, seemed to learn a part of the act at a 

 time, and only after repeated opportunity to see it, did he learn fully to 

 attend to the act as it was performed in his presence. 



TABLE 5. 



No. 11 Imitating No. 4. 



F. Bcharior of Xo. 6 



Preliminary trials. — First trial. The first few minutes were spent on the 

 floor. After four minutes No. 6 climbed the cage front and reached to the 

 chute with his hands. He repeated this a minute later. A minute later he 

 looked at the chute from the floor, climbed the front of the cage and grabbed 

 the lower edge of the chute in his hands. This he repeated once, and then 

 spent the rest of the time on the floor of the cage. 



Second trial. On the second day No. G climbed about the cage, then reached 

 to the chute and put one hand slightly into the end of it. He gave no further 

 attention to it and went to the floor. Later, he climbed the front and while 

 liolding with tall and feet to the wire reached to the chute, clasping a hand 

 on each side of it about four inches from bottom. This he repeated after eight 

 minutes, and once more before the close of the time. 



Third trial. On the third day. No. 6 reached to the chute as on the previous 

 day, after five minutes in the cage. Later, he reached to the chute and 

 tried to get his hands and feet on it while holding to the wire with his tail. 



Fourth trial. On the fourth day his only attention to the chute was to 

 look at it once and to attempt to get to it as on the previous day while holding 

 to the wire with his tail. Failing, he spent the rest of his time on the floor. 



Fifth trial. On the fifth day No. 6 once climbed the wire and looked at 

 the chute. Later, after running about the floor, he climbed the front of the 

 cage and jumped to the chute to get a cockroach on the back of the cage. 

 While there he explored the top of the cage and jumped back to the side. 

 Once more he leaped to the chute, but he leaped back immediately. During 

 the latter part of the time he remained quietly on the floor of the cage. 



Imitation tests. — No. 6 imitating No. 2. — First test. No. 6 was put into the 

 observation-box, which was set on the bottom of the experiment cage. No. 2 

 was free in the cage. No. 2 was interested in No. 6 and pretended fight. 

 Once he ran up the wire, jumped to the chute and leaped to the wire again 



