124 



FLETCHER, COWAN AND ARLITT 



TABLE 7 — Continued 



Trial 



No. of Chick 



1 



2 



3 



4 



5 



6 



7 



8 



9 



Average 



27 



29 



32 



33 



34 



35 



Average 



8 



10 



10.5" 

 9.8" 

 9 " 



11 " 

 2.6" 



3 " 

 15 " 



9 " 

 9.6" 



8+" 



4 " 

 3 " 

 9 " 

 8 " 

 6.8" 



29 " 



9+" 



6.5" 

 21 " 

 12 " 

 13.6" 



2.8" 



7 " 

 18 " 



4 " 

 9.4" 



10 + " 



2.8" 

 4.6" 



8 " 

 15.6" 



5 " 

 15.2" 



8+" 



11.5" 

 28 " 

 10.8" 

 13.2" 

 2 " 



5 " 

 26.6" 



4.2" 

 24 " 



13+" 



4 " 

 4.2" 



16 " 



17 " 



6 " 

 24 " 

 11+" 



3.8" 

 18.8" 



6 " 

 12.4" 



2.8" 

 4.8" 

 8.6" 

 4.2" 

 9 " 



7 + " 



5 " 

 2.8" 



8 " 

 8.2" 



10.8" 

 27 " 



10+" 



4 " 



45.2" 



12.4" 



9.4" 



3.4" 



4'. 4" 



23.2" 



11.6" 



13.6" 



14+" 



3.2" 



3 " 



9 " 



23. " 



10.6" 



16 " 



10+" 



Maze No. 2 



Maze 2 was a simple choice maze, consisting of one straight 

 alley with two slightly shorter alleys running at right angles 

 to it. The right hand alley ended blindly. The left hand 

 alley was open, permitting the chick to jump to the box in which 

 its companions were kept. The maze stood on a table, the 

 edge of which was six inches above the box. 



The subjects of the first experiment with this maze were 

 six normal and six alcohol chicks of the second set. The pro- 

 cedure was the same as that used with Maze 1. 



The difference in the behavior of normal and alcohol chicks 

 was more pronounced in these tests with Maze 2 than in any 

 of the other tests. It was thought at the time that this was 

 due to the increased difficulty of the maze problem which em- 

 phasized differences in learning capacity. But later results with 

 Maze 2 and with the still more complicated Maze 3 did not 

 bear this hypothesis out. In these tests with Maze 2 the normal 

 chicks with one exception, found the right path and thereafter 

 chose it. One chick chose the wrong alley on the second trial 

 and went half way to the end, then turned and chose the right 

 path. The normal chicks which went to the box slowly did so 

 because they stopped and pecked at the bright nail heads with 

 which the strips where the alleys joined were studded. 



