Berry, luiitation in White Rats. 



345 



times he followed him all about the box. And finally he reached 

 a point where he ran back and forth to the door while No. i was 

 pulling on the bar. 



NO. 3 IMITATING NO. i 



No. J folloz'.s A'o. 5 



No. I out gets out 



Time 

 5' 



45 

 7,°" 

 25" 

 15" 



Totals 



The interesting feature in connection with No. 3 was the way 

 he learned to get out. At first he accidentally touched the bar; 

 then his attention was attracted to it. After he had learned that 

 pulling the bar was connected with opening the door he did not go 

 directly to the bar from the door when put in the box, but first he 

 smelled of the floor in various places and finally when he came 

 almost under the bar, and his attention was attracted to it, he stood 

 upon his hind legs and pulled it at once. It was not until the 

 last three or four trials that he went directly to the bar from the 

 door. Several times after he had opened the door by pulling the 



