692 INORDINATE EXCITATION OF FACIAL NERVE. 
The generally aggravated conditions remained continuously 
so affected for about three days, the more severe under pallia¬ 
tive treatment gradually disappeared, and food eventually 
could be freely taken in; the ordinary health of the animal, 
which had been much affected during the severity of the 
attack, gradually also regained its ordinary status, and we 
were much pleased at the time that so favorable a termina¬ 
tion was being brought about; but the recovery has not been 
a complete one, inasmuch as there still remains a small, yet 
apparently uncontrollable, twitching of some lower facial 
muscles. Some weeks have now elapsed, and no further 
change in this condition has taken place. 
During the three days of severe excitation, when 
apparently the whole facial nerve seemed under excita¬ 
tion, the animal was troubled with a very excessive flow 
of salivary secretion, occasionally completely flooding the 
floor of the manger, and, concomitant with this, the sub¬ 
maxillary glands, particularly the near side gland, in¬ 
creased in size, and as a further result of this vascular 
excitation and increase of gland structure, there was slight 
involvement of contiguous tissue, and a small abscess pre¬ 
sented itself. I must notice that this excessive salivary 
secretion gradually abated prior to the third day, and I may 
particularly state that these conditions did not show any 
appearance during the early slight muscular contractions of 
the lips, which were continuously noticed, more or less, for 
a week or two, but only presented themselves along with the 
exaggerated symptoms. It may be concluded from these condi¬ 
tions that we have had a striking instance of implication of the 
chorda tympani, this nerve in the main being the producer of 
the increased vascularity and tissue change noticed in the sub¬ 
maxillary glandular structure, and the excessive salivary secre¬ 
tions doubtless were largely due to the influence of the inor¬ 
dinate excitation of this nerve. There is no reason to doubt 
but that the parotid and other salivary secreting glands were 
also more or less similarly influenced, as the parotid, through 
the medium of the auriculo-temporal (lesser superficial petro¬ 
sal, as stated by Ludwig and Bernard) is in receipt of facial 
supply, and so likewise is the sublingual (Heidenhain). 
Can we, therefore, accept from these conditions, with 
regard particularly to the involvement of the submaxil¬ 
lary glands, that it directly gives proof to the generally 
acknowledged doctrine that the chorda is a branch dis¬ 
tinctively of the facial, and that through excitation of the 
latter it became similarly implicated ? It is pretty generally 
conceded by neuro-physiologists, i.c. by such men as Bernard, 
