Allen, Association in tlic Gui)iea Pig. 335 



Test XI. Means of Orientation. 

 It was hoped to determine more accurately the signs which 

 the guinea pig uses to learn its way. 



Tdxt-figtire 10. 



At c ir cards of different colors could be slipped into a frame. A A are blind 

 alleys, and// removable partitions of glass. X is the food. 



Preliminary experiments were made to see whether the 

 guinea pig tends to form a habit of going in a certain direction 

 for food. If any preference were shown it was for the right hand 

 path (Text-fig. 10.) A glass partition was then put at/ on the 

 left path. The right path was soon learned. The cards (white and 

 red) at c c were interchanged. Not a particle of difference was 

 noticeable in the action of the guinea pig. When the partition 

 was put to the right side the guinea pig learned the left path in 

 three trials, with numerous random movements. 



Two guinea pigs were tested a large number of times in 

 this way. For one a green card always indicated the side of 

 the partition, and when the partition was changed the card was 

 changed. With the other guinea pig several colors were tried. 

 They almost invariably chose the path which had led to the 

 food at the previous trial, regardless of the cards. Two guinea 

 pigs, tried without any cards, did the same thing. 



The apparatus was made of wire and glass, so that I could 

 wash it after each trial and thus do away with any possible path 

 odor. 



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