Etsearclies on the Discliarge of the Electric Ori^-iu. 7Q 



cases, thoro exist the so-called staircase phenomenon and the other 

 details in a similar way, and this fact indicates the failure of 

 Fröhlich' s explanation in the case of muscle. 



14) The speed of propagation of the excitation is uniform 

 throughout the nerve-trunk Avliether the point concerned is near 

 to or far from the stimulated point, if the nerve is in tlie normal 

 state. 



15) In the altered part of a nerve, near its periphery end, 

 the speed of propagation hecomes smaller and is accompanied by 

 the decrease of the intensity of the corresponding discliarge. 



10) A spontaneous discharge curve of the living fisli Astrajje 

 consists always of two peaks, sometimes followed by a very low 

 irregular one. The second and the following discharge may l)e 

 considered to l)e the secondary discharge, etc. evoked l^y the first. 



17) The prolongation (jf the modal latent period from 

 its normal value, of whatever cause it may l)e, is necessarily 

 accompanied by the enfeeblement of the discharge, while the feel:)le 

 discharge evoked by the weak stimulus does not indicate the same 

 prolongation. 



In closing this paper, I wish to express my best thanks to 

 Prof. K. Osawa, Director of the Physiological Institute, whose 

 liberality enabled me, for such a long period, to carry out in the 

 Institute, these costly experiments. Also cordial thanks are due 

 to Dr. 8. Oinuma who was my zealous collaborator at the begin- 

 ning of these researches, who kindly collected and placed at my 

 disposal the literature relating to the subjects discussed in this 

 paper, and who gave me many valual)le advices. 



