396 
FISTULOUS PAROTID DUCT. 
^ sult of the first trial I have made the Society acquainted. I must 
now encroach upon their attention to hear the particulars of this 
second experiment. > 
The horse being cast and properly bound, with a view of con¬ 
ducting the injection with more effect, I made an opening into 
the main duct, just where it leaves the gland, and, turning the 
orifice of the syringe upwards, threw in the following injection : — 
Argent, nitrat. 3i, acid, nitric, ^ij, aquae 3xiv. 
The gland received the whole of the injection, and became com¬ 
pletely distended from it in every part. I kept the syringe pressed 
against the aperture for nearly a minute, and then removing it, 
found that much (if not most) of the injection ran out from the 
duct. I ought, perhaps, to mention that I tied the syringe with¬ 
in the duct as I would have done an injecting pipe within its ves¬ 
sel. The wound w^as left open, and a purging ball given. 
The injection was performed about eleven o’clock a.m. Towards 
night the gland began to grow tumid : the tumidity had a firm 
feel, and was not remarkably tender on pressure. 
2d Day. —The glandular tumour has increased, and the tume¬ 
faction has extended to the parts in its immediate vicinity. He 
evinces tenderness on pressure. A little serous fluid oozes from 
the wound, and, after pressure, come frothy saliva. Liq. plumb, 
frequently applied. At night, the gland and parts in the vicinity 
are involved in one mass of tumefaction, w^hich, though not pos¬ 
sessing much heat, is exceedingly tender. Skin under the throttle 
cedematous. He purges. 
Day. —Much the same. Continue the saturnine lotion. 
4:th Day. —The tumefaction has rather diminished. But there 
is a bare place observable upon the infero-posterior portion of the 
tumour, as if the part had been scalded, which has a soft doughy 
feel, and conveys an indistinct sense of fluctuation. Cont. lot. 
plumb, sumat indies, mass, purgant. 3ij. calomel 3 k. mass, 
diuretic 3ij. The appetite has not been affected throughout. 
5th Day. —The sense of fluctuation having become more dis¬ 
tinct, I punctured the bare place with a lancet, and gave vent to 
a little serous fluid. Cont. bol. et lot. 
7th Day. —The bare patch of skin has commenced the sloughing 
process. I cannot account for its beginning in this part in parti¬ 
cular, unless it be from some of the injection having gravitated 
and lodged herein. There has been no issue of pure saliva since 
the injection. A trifling purulent salivary discharge issues from 
the fistulous opening under the jaw. Cont. bol. et lotio. 
8/A Day. —The sloughing process is continuing, without my 
being able at present to determine its limits. Already an oval 
portion of skin, equal in extent to the surfoce of an egg, has se- 
