372 'Journal of Comparative Neurology and Psychology. 



corner post and pushed the chute with her hands. She was taken with 

 sneezing and, descending, rubbed her nose on the floor. Her time was up 

 soon after this. 



Second trial, July 31. On the second day No. 5 reached to the chute with 

 her hands, put one hand up the inside and pulled at the string, but not 

 hard enough to cause the food to drop. Five minutes later she did the same 

 except that she did not pull the string. After the next five minutes she 

 climbed up on the chute and examined the top of the cage. Then she swung 

 her head and shoulders down, touched the string with her hand and dropped 

 to the floor. 



Third trial, July 31. On the third day No. 5 was quiet about the cage as if 

 nothing interesting were present. She spent most of her time on the floor. 



Fourth trial, August 1. No. 5 ran up and down the wire several times. 

 Then she surveyed the chute and the whole top of the cage from below. 

 She climbed to the chute and examined the top and back of the cage. Then 

 she remained quietly on the floor for ten minutes, after which she looked 

 up at the chute, climbed the cage, reached the chute and struck at the 

 string several times with her hand. 



Fifth trial, August 1. At the fifth trial No. 5 was iudift'erent in the cage 

 for five minutes. Then she climbed to the chute, examined the top of the 

 cage, threw her head down, reached to the string and played with it but 

 did not pull it. Later she jumped to the chute again and examined the 

 back of the cage. The remainder of the time she spent on the floor. 



Imitation tests. — No. 5 imitating No. 2. — First test. No. 2 and No. 5 were 

 put into the cage together. After a little time No. 2 jumped to the chute. 

 No. 5 climbed the wire opposite the chute, leaned over, put her hand up 

 the inside and touched the string, but did not pull it. No. 5 then went to 

 the floor and No. 2 pulled the string. Two seeds fell to the floor and No. 5 

 got them. No. 5 did not see the string pulled. The second time No. 2 pulled 

 the string, No. 5 did not see. She heard the seeds drop to the floor and 

 got them, jumping down from the wire front ahead of No. 2. The third 

 time. No. 5 heard No. 2 at the chute and looked up just in time to see 

 him pull the string and to see the seeds fall. No. 5 then went up the wire, 

 jumped to the chute, and tried to pull the string, but did not pull hard 

 enough to get food. No. 2 then became excited and refused to work. 



Second test. No. 5 was put into the observation-box and the box was 

 set on the floor of the cage. No. 2 was put into the cage and at once 

 went to work. 



Performance 1 to P. 5. No. 5 saw No. 2 on the chute and saw the food 

 drop. She did not see him pull the string. 



P. 6. She saw the entire performance. 



P. 7. She saw it in part. 



When No. 2 was out No. .5 was released. She climbed the front of the 

 cage and leaning over to the chute tried to put one hand up the inside, but 

 could not do it. Time : 50 seconds. She went down to the floor and at 

 once climbed the wire again. She jumped to the chute, wrapped her tail 

 around it, put her feet on the rung, threw head and shoulders down and 



