48 



Art. l.-K. Fuji: 



discharge to that of tlio first, we can see that it iias a maximum 

 value as in No. 74 — No. 75. In this oscillogram the interval be- 

 tween the first stimulus and the summit of the secondary discharge 

 may be measured from the first set of the discharges, and as tliis 

 value we obtain '22o x 10"^ sec. Here we see again that tiie 

 maximum of the ratio of the height of the second discharge to 

 that of the first occurs Avhen its summit just coincides with that of 

 the secondary discharge. The relation is shown in the following 

 table : — 



Table XX. 



Oscillogram No. 05. 



Interval between the first stimulus and the sunimit of tlie 

 secondary discharge: 223 x 10"* sec. 



Now since it was not plain to me whether tlie seat of tlie 

 phenomena is in tlie nerve or in the organ, an experiment Avas 

 made to determine the question. By giving a pair of stimuli with 

 a fixed interval between them, and by inserting proper resistance 

 in the discharge circuit, we carried out a series of experiments with 

 equal stimuli and difïerent heights of discharges. Changing the 

 magnitude of discharges by varying the resistance, the delay of the 

 second discharge with respect to the first was measured. The fol- 

 lowing table shows tlie results. 



