ENLARGED THYROID GLANDS IN A COW. 
499 
was always attended with great risk, from the hemorrhage of the 
neighbouring bloodvessels, and I have now entirely discontinued it. 
These tumours are sometimes loosely attached to the subcuta- 
neous cellular tissue, while at other times they are firm and indu- 
rated, pressing on the larynx, and causing stertorous and, not unfre- 
quently, difficult respiration. That they are of a scirrhous nature 
there can, l think, be little doubt ; although I have sometimes 
found, in the very centre of the gland, a small quantity of matter, 
not purulent, but of a caseous character. In the commencement 
it appears to cause little or no pain to the animal, but, in more 
advanced stages there is frequently very considerable pain. 
My treatment is simple. It consists chiefly in the application 
of that potent drug iodine, or rather ung. hyd. biniodid. to the 
gland, and the administration at the same time of the hydriodate 
in small doses. 
The case which I am about to describe is that of a valuable 
three-year-old roan cow, of the pure short horn breed, the pro- 
perty of Wm. Hutton, Esq., which was brought to me for exami- 
nation. I heard her breathing very loud at a considerable dis- 
tance, and, when hurried, she seemed quite exhausted. Saliva 
was drivelling from the mouth — she was very much out of con- 
dition, and had a calf which she then suckled. 
I observed the enlarged gland at the posterior angle of the jaw 
filling up the entire space, and extending outwardly with consider- 
able volume. The near side was indurated. Pressure on the part 
did not appear to produce pain, but only increased stertorous 
breathing. I was informed that she had always breathed hard 
from a calf, and that the enlargement had gradually increased. 
There was no apparent disease or malformation of the epiglottis. 
My treatment in this case consisted in performing the ope- 
ration of bronchotomy, and inserting a canula, which gave im- 
mediate relief to the breathing. I had the gland daily rubbed 
with ung. biniod. hydrarg. ; and, in a fortnight, there was evident 
improvement of condition — the gland was a little reduced — and 
there was considerable vesication. 
On plugging up the tube the breathing again became loud. 
I continued the same treatment, and now gave small but 
gradually increasing doses of potass, hydriod. 
In a fortnight more there was great amendment — the gland 
was gradually reducing, and the animal regaining condition and 
feeding well. I then discontinued the iodine, and ordered her to 
be turned out to graze. The canula having remained in another 
week, I removed it, and applied sutures to the wound, which 
healed quickly. 
The breathing was now quite natural ; the gland gradually sub- 
