Haggerty, luutntion in Monkeys. 359 



lookiug at it. After examination, lie puslied his luuul up the inside and 

 toiiclied the string. Then he became very eager to work and would have 

 worlved continually (fig. 4). 



C. Behavior of No. 13. 



Preliminanj trials. — First trial, August 23. On entering the cage. No. 13 

 climbed to X where he sat for a short time. He then walked along the brace 

 until opposite the chute, when he leaned out toward the chute and touched 

 it with his hands, a little way above the lower edge. Drawing his body back 

 from the chute, he walked along to X and went down to the floor. Several 

 times he climbed up and down the wire parts of the cage and then tried to 

 get out at the door. He went back and forth from the door to X. In his 

 endeavor to get out of the cage, he pushed on the small doors repeatedly 

 and even climbed the wire front to push on the upper part of the large 

 door. Next he settled at X and looked about. He moved down to the floor 

 and up and down the wire. Moving along the brace to the door, he tried to 

 push it open. He then descended to the floor. He tried to climb the corner 

 post opposite X and then climbed the wire to the top of the front, going 

 to the floor again and then up to A'. He was active during the entire time 

 he was in the cage, but he took no notice of the chute after the first three 

 minutes. 



Second trial, August 24. The movements of No. 13 on this day were as 

 follows : Up the end of the cage ; to the floor ; up to the brace and along the 

 brace to opposite the cliute ; leaned over to the chute and put hands on the 

 lower rung ; felt up and down the edges of the chute nearest him ; tried to bite 

 the edges of the chute ; back to the wire and to the floor ; again up to 

 the brace and leaned over to the chute ; again bit the edges of the chute ; to 

 the floor, about, and looked up at the chute from exactly under it ; to the 

 door ; up to Z and perched ; to the floor and hunted about ; bit the door ; 

 again to X and perched, looking out through the wire; down to the floor to 

 get a roach and back to the brace ; up the wire front, and back to X; to the 

 door and back to A'; along the brace; putting his hands over on the 

 chute, he swung his body to the chute and climbed up on it to the top 

 of the cage and looked at the screws, etc. ; tried to bite rung ; back to brace 

 and perched at X. 



Third trial, August 2G. Behavior as follows: Climbed wire; perched at X; 

 to the floor ; to the door ; up front and around to the top of the wire end ; 

 back to X where he sat for a little time; to the floor and hunted all about; to 

 the place where L* had been and hunted for it ; back to X and along the 

 brace to the large door ; turned around, faced the chute, but paid no attention 

 to it; to the floor, all about and back up to X; along the brace to the chute; 

 leaned over to it ; put hands on the near edges and looked up and down ; 

 grasped rung in one hand and pushed other up and down the edges of the 

 chute; back to X; to the chute and clung to it while he examined the top of 



*An opening where he had gotten food in a previous experiment. 



