Researches on the Discharge of the Electric Oro-an. 



41 



for various licights of the stimuli. But tiio coefïicieuts of tlie normal 

 equations became very different in order of magnitude, and perliaps 

 for this reason, no significant values could be obtained. Hence 

 we abandoned these calculations, and we shall leave the problem 

 without any presumption upon tlie variations of the constants 

 witli regard to tlie height of tlie stimulus, until we shall have liad 

 an opportunity of obtaining more trustworthy results free from 

 i:)rogressive changes. 



In short, except No. 37, the results of tlie experiments were 

 not perfect; but taking into consideration the difficulty of the 

 measurement of the small duration of the stimulus, and the influence 

 of the troublesome factor of the progressive change, these results 

 rather prove the correctness of the decrement factor of Hoorweg. 



Next we shall give an experiment of indirect stimulation, in 

 which momentary stimuli of different heights were given. The 

 relation between the height of tlie stimulus and the height of the 

 corresponding discharge is given in the next tal»le and in Plate 

 X., Fig. 3. 



Table XVI. 



Oscihogram No. 40 (Plate XXVI IL). 



Temperature of the organ: 8-2X'. 



Additional resistance inserted in series: 200 ohms. 



The stimuli given: Descending. 



(The stimulus of Curve No. 1 was ascending by accident.) 



