400 
PHYSIOLOGY. 
from man to animals, have ended in merely giving rise to in 
flammatory lesions, manifested around the grafted fragments 
which have always, however, afterward completely disap 
peared by resorption. The conditions of this first series o 
experiments are such that it may be concluded that cancerou: 
neoplasms are not absolutely transmissible from one anima 
to another of a different species. In respect to the attempt: 
made to effect the transmission of the disease from dog to dog 
differently from what might be inferred from facts obtainec 
by others, they have in the hands of the writer been followed 
only by negative results. But in default of further experi 
ments and more numerous observations, made under mon 
favorable conditions, the author does not desire to be under 
stood as definitively accepting the negative theory.— Rev. dt\ 
Sc. Med. 
PHYSIOLOGY. 
UPON THE SUPERIOR LARYNGEAL NERVE OF THE HORSE. 
% ■> 
By Sig. Exner. 
Professor Moller had observed in two experiments, tha 
the section of the superior laryngeal nerve in the horse gav(j. 
rise to a degeneration of the muscles of the larynx on the side 
operated upon. 
S. Exner has also discovered by means of the laryngoscope 
that the section of the same nerve in the . horse immediately 
brought on paralysis of the vocal cord on the same side. 
These experiments and their results being denied by H 
Munk and his students, Breisacher and Gutzloff, Exner re 
newed his observations on two other horses, and observed, thij 
time, that the section of the laryngeal nerve did not pro 
duce the paralysis of the vocal cord. 
The most plausible, if not only possible explanation o 
such contradictory conclusions, reached by equally conscien 
tious and careful observers, must be looked for in the sug 
gestion that the superior laryngeal nerve in the horse, is, b 1 
its physiological composition, subject to a considerable degre» 
of individual discrepancy and inconsistency.— Rev. des S( 
Mied. 
