X. HEALTH CONDITIONS AND LEARNING ABILITY 



IT is generally conceded that bodily changes in the general health 

 of an animal may greatly tend to interfere with the formation of 

 habits. This investigation, however, has shown that a number of ani- 



tKe 



Trials 



10 



FIG. 9. Daily Eecord Curve for 156, White d, that gave good records although 

 stunted and very ill throughout all the test. 



mals have made exceedingly good records although they were appar- 

 ently in very poor health. They were put through the tests, more 

 out of curiosity to see what they would do than for anything else, 

 and the experimenter was surprised to find them making very good 



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