The Duration of Habits 



259 



TABLE 49 



WHITE -BLACK TRAINING. TEN TESTS PER DAY 

 Males 



in the re-learning series by an interruption of the training 

 between the seventh and the eighth series. Had his training 

 been completed by the sixth series he too would have had the 

 same number of tests in training and re-training. More- 

 over, and this is of preeminent importance for a fair inter- 

 pretation of the results, in several instances even those 

 individuals which exhibited as strong a preference for the 

 black in the memory series as in the preliminary series 

 re-learned more quickly than they had learned. Number 



