Percent of Right Cases 



Peppermint and left 58.3 



Assaf oedita and right 47.2 



Average 52.7 



The Guinea pig showed that he detected the difference 

 between the assafoedita and the peppermint for he would 

 often draw back from the assafoedita and then pass it rapidly, 

 always taking care to jump over the watch-glass. He usually 

 acted in this way when the assafoedita was first presented 

 after an interval of some hours, and he never acted so 

 toward the peppermint. 



The results are not ground for assuming that the 

 Guinea pig benefited at all from the practice, although the 

 practice was equal in amount to that which was sufficient 

 for creating the spatial association of the previous experi- 

 ment. 



Experiments to determine the guinea pig's ability to 

 give different specialized reactions to two sounds were 

 negative. 



Experiments to determine the Guinea pig's ability to 

 associate different end terms with two series of motor re- 

 actions, gave fairly positive results, showing the characteric 

 reduction of time and errors. 



[EIGHTEEN 



