388 
FISTULA OF THE PAROTID DUCT. 
By the Same. 
One of the worst cases of the above I ever remember 
having seen, existed in a fine young grey mare, given over to 
the Military Train at Woolwich by the Royal Artillery, on 
the 28th of April, along with a number of other transferred 
horses. She was recommended to be cast, as the injury had 
been done many months before, had resisted many attempts 
to repair it, and was now in a chronic state. Certainly, on 
examination, it appeared bad enough, for, in addition to an 
unhealthy looking fistulous sore, the tissues in the vicinity 
were in a callous condition, and very much thickened, evi- 
dent^ the result of the accident that divided the duct, and 
the inflammation subsequently set up by the use of caustics 
or the actual cautery. 
The wound is situated immediately upon the external 
margin of the inferior maxilla, just where the duct turns to 
ascend the cheek, and is about the size of a half-crown. Its 
edges are very much elevated, and on a level with the tumefied 
textures which encircle it. Its centre is depressed, and 
exhibits an opening sufficiently large to admit a goose-quill. 
The damage has, judging from appearances, been done by 
the head-collar, as the opposite jaw bears the mark of a con- 
tused wound. When food is given, the saliva flows in a 
pretty considerable stream from the opening, even after the 
motion of the jaws has ceased ; and sometimes when no food 
is given, though then not in such quantity. 
Thinking it a pity to see such a good animal thrown away, 
from such a seemingly trivial cause ; and as we did not then 
require her services, I thought the chance a good one for 
making a trial of collodion, and if that failed, then I could 
destroy the function of the gland and render the mare, for 
our work, serviceable. 
Having procured some good collodion, I was obliged to 
throw the mare down before I could have the diseased surface 
properly prepared, and the dressings applied in the manner 
recommended by Mr. Gowing. His mode of after-treatment 
was also closely followed up, and every precaution taken in 
order to ensure success. 
I may add, that over the whole dressing was applied strips 
of brown paper steeped in glue, and on them a la} 7 er of tow. 
Over all I had a three-tailed bandage placed, one tail going 
over the head behind the ears, another across the brow, and 
