TRAINING IN WHITE RATS UPON VARIOUS SERIES OF MAZES 29 



TABLE 23 



The Average Number of Trials per Rat Required in Learning a Maze by 

 Groups Having Previously Learned One, Two, Three, or Four Mazes 



Maze A Maze B Maze C Maze D Maze E 



Group having learned one pre- 

 ceding maze 21.40 11.62 12.20 18.00 7.11 



Group having learned two pre- 

 ceding mazes 6.89 19.00 9.75 27.60 7 30 



Group having learned three pre- 

 ceding mazes 6.50 11.44 7.00 25.56 4.40 



Group having learned four pre- 

 ceding mazes 6.40 13.20 9.00 22.10 4.00 



■^ 3 6 O £ 



30 



7?;e /7i^e'rz?g& Ai<rr7^/^ cf 7?/a/5 /:?er ^z- /rhoi/y're'c:^ /r? 

 ^/7€> or A/orv Afi^:z-<^3. 



♦ " " 7>W " " 



" * " -T TTynee " " 



* " " f^tyr- " " V 



The figures in table 23 show that the groups which have 

 learned more than one maze before attacking another do 

 not necessarily and invariably enjoy any advantage in 

 the learning of the new maze, as compared with the trial- 

 record of the group that came to the maze with but one 

 prior maze-learning. The groups learning maze A showed 

 a nominal increase of savings with the increase in the num- 

 ber of previous maze-learnings, but the group that had 

 had four maze-learnings saved but .1 of a trial as compared 

 with the one having had three, and the one that had had 

 three saved but .4 of a trial as compared with the one 

 having had two. If the group with two previous maze- 



