NEUROBIOTAXIS 289 
a 
with the process seen in muscles, which at the closure of the 
current exhibit, besides the contract'on at the kathode, also 
an extension at the anodal pole, the broad analogy between the 
law of stimulation for muscles and nerves being known. 
Scyllium canicula 
(Fish) 
Rad. desc. N.V. - i ae oe oe " Varanus salvator 
Sse ide z 
aS (Reptile) 
VII nucleus -—\: 
. Ib N ee 
Axons -- ee pcaradh be 
Mus musculus 
ars: 
ae un 3 (Mammal) 
VII nucleus -- - 
Pyramid spies, ole ee eee EEO as 
Fig. 5 Migrations of the motor facialis nucleus in the animal series, which 
is correlated with a shortening of the dendrites and an elongation of the axis- 
cylinders. 
