46 



Art. 1.— K. Fuji: 



overlaps the secondary discharge of the first stimukis. Hence Ave 

 see that the apparent increase of tlie height may be due to the 

 summation effect of the secondary discharge. To make this fact 

 clearer, Ave may refer to the following table: — 



Table XVIIL 



Oscillogram No. 74. 



From the first set of curves the interval l)etAveen the first 



stimulus and the summit of the secondary discharge may ]>e 



found to be 193 2x10"* sec. 



In this table we see that tlie maximum ratio between the 

 height of the second discharge and that of the first, occurs Avhen 

 the summit of it just coincides in position witli that of the second- 

 ary discharge. 



Oscillogram No. G5 (Plate XX.) is another series of experi- 

 ments of the same kind. The corresponding numbers are tabulated 

 in the next table and plotted in Plate XII., Fig. 2. 



