138 HELEN B. HUBBERT AND K. S. LASHLEY 



by which the getting of food fixes the habit. It indicates that 

 this is not the formation of a series of conditioned reflexes such 

 as was outlined in the first part of the paper. It suggests fur- 

 ther that the same mechanism is involved in learning similar 

 reactions in different parts of the maze and that the rate of 

 learning is the same irrespective of the temporal relation of these 

 to the getting of food. 



LITERATURE CITED 



Bechterew, W. von. Objective Psychologie oder Psychoreflexologie. Leipzig, 



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Dontchef-Dezeuze, M. L'image et les reflexes conditionnels dans les travaux 



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 Hachet-Souplet, P. De l'animal a l'enfant. Paris, Alcan. 



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1914. Notes psychologiaue sur les chiens de guerre. Jour, de Psych, norm. 

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Hubbert, H. B. Elimination of errors in the maze. Jour. Animal Behav., 5, 



1915. 66-74. 



Vincent, Stella B. The white rat and the maze problem. I. The introduction 

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