354 Karyokinesis 
completely different from those of the other germ, and 
consequently they are incapable of vibrating together 
with the same rhythmicity. 
Finally as to indirect or karyokinetic cell division, let 
us admit that, when each of the two coupled accumu- 
lators, in consequence of the continual increase of its 
mass attains too high a potential, the two halves of each 
of these accumulators will tend to repel each other, just as 
would for example, the two halves of a conducting sphere 
or disc, charged with too great a quantity of static 
electiicity of the same sign. 
It we admit at the same time, that the separation of 
the two halves of each accumulator would break the cir- 
cuit of oscillation, as would seem indicated by the rupture, 
retraction, and disappearance of the meshes of the nuclear 
reticulum during mitosis, and thus suspend abruptly the 
oscillating discharge, then the actual energy of this dis- 
charge still in activity at that moment will become trans- 
formed into potential energy, and discharge itself upon 
the first little bit of substance, or centrosome, most 
capable of receiving it. Consequently, without pretending 
thus to be able to penetrate into the smallest details of 
this phenomenon, we understand nevertheless how the 
vital phenomena of dynamic order, which are due to the 
oscillating nervous discharge, must then necessarily be 
followed by phenomena of static order, like those which 
are characteristic of the karyokinetic cell division. 
We limit ourselves here to recalling only: 
1. Delage’s observation that in indirect division the 
longitudinal splitting of the chromosomes or of the 
nuclear filament begins before achromatic filaments are 
present which are capable of exerting upon them any pull 
