ii6 



KANSAS UNIVERSITY QUARTERLY. 



Tlie following is a report (illustrated by curve) of a series of igo 

 tests to explain Wundt's Law: 



Diaqrata IZ. 



lis* 56 



UiaqrartL jy.. 



7 8 9 l6 n 12 13 14 15 J6 17 18 19 



(i; 



(H v 

 Table V. 



Dist., 2 00 3 00 4.50 5 00 i.M 3 00 2.00 i.hO 9 00 10.00 9 00 4 50 2.00 3.50 13.00 15.00 13.00 5.50 2.00 

 Est.. l.tiO 2.r5 3.05 4.45 4.40 3.75 1 ()5 3.9.) fl 9J 8.15 0.90 3.90 1.55 4.15 8.60 11 35 10.10 5.30 1.55 



In the table a series of positions is shown, such that the object 

 observed is part of the time approaching the observer and part of the 

 time receding, at equal distances each. In the plot the heavy line 

 represents the true distances and the dotted line the judgments, the 

 left hand side of the figures showing the forward movement, the 

 right hand side the backward. 



Remembering that the relative accuracy is shown in the above 

 diagram by the tendency of the two lines to come together, 

 we conclude that the accuracy in (I) and (Til) is greater when 

 the object seen approaches than when it recedes, although in 

 (II) there seems to be no marked tendency either way. A numeri- 

 cal statement of all the different judgments is shown in the follow- 

 ing table. 



In the following table Roman numerals correspond to those in 

 the preceding diagram. 



Table VI. 



Estimations. 



From the above numerical statement it would appear that, within 



