Yg Art. 1.— K. Fuji: 



6) When a stiniulatioQ is given to a nervo, there remains a 

 fatigue which recovers in a very short interval and wliich is called 

 the tem'povary fatigue by the author. 



7) Tlie fatigue is characterised by 



a) The prolongation of the modal latent period of the 

 discharge in response to a stimulus given in the 

 inter^'al influenced by that fatigue. 



1)) The decrease in the intensity of the discharge denoted 

 by A in the discharge formula. 



8) The time relation of the recovery of this fatigue measured 

 by the excess of the modal latent period of the second discharge 

 compared with the same of the first may be expressed by an 

 exponential function Me~''\ and tliis law of the recovery holds 

 good also in the case of similar results obtained by Lucas in nerve- 

 muscle preparation. 



0) The abnormal increase in the intensity of the second of 

 the discharges, evoked by two successive stimuli, may l)e inter- 

 preted by the superposition of the secondary discharge. 



10) The behaviour of the discharges in response to the two 

 submaximal indirect stimuli, separated by an interval shorter 

 than the refractory period, gives support to the "all or none" 

 theory. 



11) In this case, a new phenomenon is probably involved, i.e. 

 the shortening of the modal latent period of the discharge, caused 

 by the summation of the two subminimal stimuli. 



12) The discharges in response to submaximal closing and 

 opening-stimulus indirectly given may superpose, and the modal 

 latent period corresponding to the opening-stimulus shows the 

 prolongation in the modal latent period. In this case also, the 

 phenomenon ma_y be explained by the "all or none" theory, 

 together with the assumption that the subminimal stimulus may 

 cause some local change, which is made apparent from the prolonga- 

 tion of the modal latent i)eriod of the succceeding discharge and 

 which is not yet otherwise confirmed. 



: 13) The fatigue curve in the case of the electric organ very 



closelv resemldes that of tlie contraction of muscle. In both- 



