360 'Journal of Comparative Neurology and Psychology. 



the cage ; ou the chute two minutes and theu slid dowu to the end and 

 dropped off; again to the chute and examined the cracli in the top of the 

 cage; perched on the rung and loolied out of the cage; bit at the edges and 

 then jumped off. 



Fourth trial, August 27. Behavior as follows : To X and sat down ; along 

 the brace and back to X and to the floor ; up the front and along the brace to 

 X and up the end of the cage; to the floor and about all the edges looking 

 for food ; up to X. along the brace, and to the floor ; about the floor and to 

 the door, which he tried to open; to the end of the cage; up, around to the 

 front and sat at X; up the end of the cage and down to the floor; to the 

 corner opposite X; to the front, up and sat at X; up and down the wire; up 

 the front, around to the end and back to the front; to the end and down to 

 the floor; up to X and sat; up the front of the cage and shook it. 



Fifth trial, August 29. Behavior as follows : Up and down the end of the 

 cage; to the door and up the front; to the chute and sat on the rungs; back 

 to front and to X where he sat for some time; to the floor and to the door, 

 which he tried persistently to open; climbed the front and looked about; to 

 the floor and pushed on the door very hard; up the front and perched at X; 

 up the end of the cage and back to X; along the brace and pushed at the 

 chute; to X and down to the door; up the front and to the chute; back to 

 the brace and along it to the end of the cage and back to X; to the floor 

 and back to X; looked up at X from the floor; afterward climbed to X and 

 sat there during the remaining part of the time. 



Imitation test. — No. 13 imitating No. 4.* First test. No. 13 was put into the 

 observation box and the box was set on the floor of the cage so that No. 

 13 could have a good view of the chute. No. 4 was put into the cage and, 

 at once, began to get food from the chute. No. 13 was attentive to every 

 movement. His record in seeing is as follows : 



Performance 1. No. 13 saw perfectly and became very threatening and eager 

 to get out of the cage. 



P. 2. Just as No. 4 thrust her hand up the chute, No. 13 looked down. 

 As a result he did not see the pull. He saw her eating food and shook his 

 box with such force that he moved it about over the floor. 



P. 3. No. 13 saw perfectly and sat on the floor of his box attentively watch- 

 ing No. 4 eat her food. 



P. 4. No. 13 saw perfectly and was eager to get out. 



P. 5. No. 13 saw fairly well ; he was eager to get out of the box ; failing to 

 get free he sat on the floor of his box and watched No. 4 eat the food. 



These performances did not occupy more than flve minutes. No. 4 was now 

 removed and No. 13 was released in the cage. At first he looked about over 

 the floor for food and then climbed the front wire, stopping on the brace 

 opposite the chute. He leaned over to the chute and while still standing on 

 the brace with his feet, tried to thrust a hand into the bottom of the chute. 

 Failing in this, he ran along the brace to A' and back again to opposite the 



*The learning of No. 4 will be given later. 



