42 



G. V. HAMILTON 



trials; alley No. 2, 20 trials; alley No. 3, 43 trials; alley No. 4, 

 25 trials. During his 100 formal trials he entered alley No. 1 

 65 times, alley No. 2 99 times, alley No. 3 119 times and alley 

 No. 4 86 times. 



TABLE 13 



Alleys Entered by White Rat 6 During 14 Habit-Forming Trials 

 1st trial— 3-4-3-4-3-2-3-4-1 



In this table, as in tables 10, 11 and 12, we have an example 

 of habit formation which evidently depended not only upon 

 the operation of the factors of recency and frequency as such, 

 but upon recency and frequency of advantage. 



White Rat 8 



This subject had 25 pure recency and 7 recency-frequency 

 first choices, which were distributed as follows: alley No. 1, 12 

 trials; alley No. 2, 16 trials; alley No. 3, 47 trials; alley No. 4, 

 25 trials. It is significant that this subject displayed a larger 

 number of recency first choices and a smaller number of fre- 

 quency first choices than did any subject of the six that were 

 used for the studies of habit formation. He entered alley No. 1 

 90 times in 100 formal trials, alley No. 2 85 times, alley No. 3 

 98 times and alley No. 4 76 times. 



TABLE 14 

 Alleys Entered by White Rat 8 During 8 Habit-Forming Trials 



