males and four females numbers IB, 1^,20,21,23 and 24, while the 

 night group included tv.o malea and four females numbered 6,7,8,'^ 

 10,15 and 17. The averages ahow the night grou] to be superior 

 to the day grouj in every respect save that of final efficiency. 

 Mevertheless, we are inclined to hold to our previous statement 

 that no difference is shov.'n in learning ability, for the follov/- 

 ing reason^ the general average for the females of this group 

 was considerably higher than that for the males exoeit in the 

 matter of absolute time. In the day group there were only two 

 males and four females. Were the number of males the same as 

 the number of females it is our belief that the average would 

 be considerably lowered and the day and night grouj^s prove to 

 have practically the same ability in learning the maze problem. 



TABLE X. 



AVERAGES 



Time 

 Trials Absolute Total Distance 



25 days : 



Day ES 5.5 sec. 207 min. 247.4 meters 



Night 31 5.4 " 159 " 261.6 



200 days: 



Day 41 6.2 " 461 " 373.5 



Night 34 7.2 " 325 " 267.9 



Continuation of V/ork after the Problem has been Learned. 



Another question which interested us was, what would be 



