18 



Art. 1. K. Fuji: 



Date of experiment : 

 Organ : 



Nov. G, 1909. 



Left organ (wliole) of a fish of mid- 

 dle size. 

 Temperature of the organ: 8-5° — 7-2°C. 

 Resistance of the organ: A])Oiit 240 olims. 

 Reading on tlie first rail of the stininlation-apparatus (circuit- 

 breaker): 64-0 mm. 



Reading on the second rail of tlie stimulation-apparatus 

 (connection-changer): 60- mm. 



The ordinates of tlie points on the curves were measured for 

 e\'ery one mm. of abscissa on the oscillogram, and they were 

 plotted on a section paper, the value of the abscissa being converted 

 to the unit of 10"'' sec. (Plate VI.). The following table shows 

 the constants obtained by applying the method a])ove described 

 on the reproduced curves: — 



T.Vi-.LK I. 



L. P. means latent period (ordinary usage). 



M. L. P. means modal latent period. 



Full details of calculations are given in the Appendi x. 



