LABYRINTH HABITS OF THE PIGEON 



287 



TABLE III 

 Records for Labyrinth B 



Table III presents the average times taken and the average 

 errors made in learning this maze. It will be seen from this 

 and the graphic representations in figure 5 * that decrease in 



* The graphs repre.sented in figures 5, 6, 7, and 9 were construeted by the follow- 

 ing method: The minimal time average, e.g., was subtracted from each time aver- 

 age thus giving the surplus values to be eliminated. In order to shorten the curve 

 to a convenient length and to reduce the irregularities in it the surplus values were 

 then averaged in pairs, omitting the first trial. The reason for not including this 

 trial in the averages was that it was desired to show the relation of sub,sequent 

 learning to the record first established. The results obtained by so manipulating 

 the surplus values were now thrown into percentages, the first trial being rated as 

 100%. These percentages were then plotted. It was thought advisable to plot in 

 terms of percentages in order that the time and the error graphs might be com- 

 pared directly. 



