CURRENT OF DEATH 



I6 9 



It will be observed that as we proceed from the dead to 

 the dying, the negativity of the latter rapidly 'increases, the 

 maximum being at 30 mm. from the zero-point taken on the 



15 20 25 30 35 40 



4GO 



FIG. 113. Distribution of Electric Potential in Lamina of Colocasia along 

 a radial line from dead to living through intermediate stages. Ab- 

 scissa gives distance in mm. from chosen centre in dead tissue, ordinate 

 represents galvanometric negativity in divisions. Dead tissue repre- 

 sented dark, dying shaded, and living white. 



dead tissue. This point of maximum-negativity almost 

 coincides with the visible border-line between the yellow 

 and the green. Beyond this, however, there is an electrical 





