(643 ) 
as long as the current lasts, weak currents at the same time accel- 
eration (see fig. VII—X1). 
That of the N.lingualis N.trigemini always gives, just as the N. 
laryng. sup. an arrest in expiratory position, but with accelerated super- 
ficial breathings and long continued after-effects (see fig, XITI—-XV). 
The stimulation of the N. hypoglossus, the N. accessorius and 
the N. facialis proved to have no influence on the respiration. 
The stimulation of the fila oifactoria appeared to be exceedingly 
dangerous as there was a great chance of sudden death, but, gave 
in some cases a curve analogous to that of the stimulation of the 
N. sympathicus (see fig. VI and fig. XII). 
Under the given circumstances, i.e. chloroformnarcosis and mode- 
rately strong induction current (we cannot lay too much stress on 
this), all sensible nerves of the tractus intestinalis and of the 
airpassages proved to have a retarding influence, with the exception 
of N. trigeminus, which may be considered as being in secondary 
connection with the deeper organs, being primarily a sensible 
nerve of the outward cover of the body. The arrest is a position 
of rest when the N. Splanchnicus, N. Vagus and the N. olfactorius 
are stimulated and the arrest is a forced inspiratory position when 
the N. Glossopharyngeus is stimulated. This result agrees on the 
whole with what others, under different circumstances, have 
found. Yet there are important deviations in some points. PHILIP 
Kyou. states in the ,Sitzwngsberichte der Wiener Akademie” Bd. 86. 
p. 483 and Bd. 92. p. 315, that the ramus lingualis N. trigemini 
belongs to the nerves, the excitation of which always gives 
inspiratory effects, whereas experimenting on five dogs with 
numerous stimulations, I have never found an inspiratory effect, but 
constantly an expiratcry effect with acceleration of respiration. This 
is of importance because the statement of the author that there is 
no real difference in the working of the sensible stimulation for 
narcotized, not narcotized or brainless animals, proves not to be 
exact in all cases. 
But these results are also of importance with a view to the 
theoretical considerations of LABORDE and this is in fact what gave 
rise to this communication. 
LABORDE passes the N. glossopharyngeus over in a few words, 
which prove, that he does not pay sufficient attention to what is 
known about this nerve. He says about it: 
„Grace à un des résultats nouveaux de mes recherches personnelles 
ce nerf (c. a. s. N. Laryngé supérieur) n'est pas le seul qui puisse 
intervenir efficacement dans la réalisation fonctionelle dont il s’agit. 
