Allen, Association in the Guinea Pig. 



313 



When put inside, the guinea pig immediately pushed the 

 wire at the point where the swinging door had been before, and 

 so pushed the wire box against the other wire (as in the dotted 

 Hues, Text-fig. 3), thus cutting off one path to the second opening. 



Text-Jig are j. 



It Still scratched and gnawed at the old place, but failing to get 

 out, set out on an exploring tour. In 1.33 min. it had found 

 the door. It then ran around the box in the direction of the 

 arrows to get out at y, but found itself shut off there. It began 

 to look again, and in .58 min. had found the opening at s. To- 

 tal time, 2.083 "'''"• 



Replaced in A (Text-fig. 4). 



The guinea pig sat perfectly still for 1.91 min. Then it 

 turned around and pushed gently at the point where the door 

 had been in the first problem. Not finding the wire to swing 

 easily, it turned directly back and pushed the door open with- 

 out any random movements. Time, 2. 16 min. Then it again 

 went in the direction of the arrows, and found its way closed ; 

 then turned and immediately found the opening at z. Total 

 time, 2.5 min. The smoked paper showed a minimum of ran- 

 dom movements. 



Results : At the age of two days there is unquestionable 

 evidence of recollection. It will be noticed that the random 

 movements made in the last trial are almost identical with those 



[21] 



