to bring about the conduct of the tactile impressions from the right 
half of the body. The tactile sense of the right side remains therefore 
undisturbed. 
II. The paralysis of the swallowing muscles to the left (that has 
been much meliorated) and the lasting paralysis of the muscles of 
the larynx on that side are symptoms following almost necessarily 
from the former. The ventral (motor) nucleus of the IXth, Xt and 
XItt nerve has been destroyed by the lesion. 
Whether the dorsal vagus nucleus has been injured, forms an 
independent question. For the moment the sense of taste to the left 
has suffered only very slightly. Those who believe the tractus solitarius 
to be a continuation of centripetal glosso-pharyngeus-fibres as it 
doubtlessly is in part and who consider it as a tract conducting 
taste-impulses, will be rather inclined to think it has not been injured. 
On the other hand the analgesia trangresses into the zone of the 
N. trigeminus in the region of the ear, whilst pain- and heat-sensation 
are disturbed in the dermal branch dependent on the N. X, a fact 
easily: to be understood, considering the destroying of the forthcoming 
roots of this nerve. 
ill. The dissociation of the conjugate movement of the eyes and 
the head towards the right. 
I believe this symptom to be a consequence of the portio interna 
corporis restiformis to the left. Within this portion is contained the 
radix descendens N. VIII. It contains the descending root-tibres of 
of the N. vestibularis, which enter into it on a higher plane than 
that where is situated the focus of disease. The N. vestibularis here- 
fore bas been destroyed partially, not completely — the coldwater- 
reaction of Barany proves that vestibularis-impulses still act upon 
the double-eye. 
The influence of the one-sided destruction of the vestibular tonus 
on the double-eye is well-known. Both in man and in animals the 
uni-lateral eye is turned downward and inward, the contro-lateral 
one upward and outward. They deviate therefore in a direction 
opposite to the lesion. 
In the present case however that involuntary stand of the eyes 
has found compensations, amongst others the oblique attitude of the 
head. The motor mechanism for the double eye is consequently 
brought into another state of equilibrium than the normal one. It 
undergoes an innervation tendency to direct both eyes more than 
is usual towards the left side. | 8 
This mechanism has been disposed in that way by means of reflex- 
actions through the exercise that has led to compensation. 
