REPORTS OF OASES. 
327 
I was assisted in the operation by Drs. Howe, Dayton and 
Charlesworth, Springfield ; Drs. Kerr, Urbana, and Logan, 
Bellefontaine, administered the ansesthetic. The subject was 
an old gelding at least twenty years old, and in an emaciated 
condition. He had a chronic discharge from the nasal pas¬ 
sages with considerable rattling in the head and trachea. The 
least exertion would cause very loud roaring and upon being 
severely exerted, the animal would stagger and nearly fall 
down if not stopped. The readers of this article will no 
doubt agree with the writer that this was not a very favor¬ 
able subject for the operation. 
The animal was thrown down and secured, and a suitable 
stage of anaesthesia was reached in about ten minutes. The 
hair was clipped as closely as possible over the region of the 
larynx, the skin was sponged with a solution of hydrarg bi. 
chlor., then an incision about five inches in length was made 
in the median line through the skin and muscles, exposing the 
larynx and trachea. The hemorrhage was controlled by cold 
water sponging and torsion of some small vessels. When 
the hemorrhage had entirely ceased the larynx was opened, 
including the first two rings of the trachea. Considerable 
mucus mixed with pus escaped from the wound, coming up 
from the trachea and bronchi. 
The true cause of roaring in this case was fully demon¬ 
strated, as the left arytenoid cartilage was perfectly immov¬ 
able, and the muscles of the same side were plainly atrophied, 
while the right arytenoid and the muscles were in a normal 
condition and expanded and contracted at each respiratory 
act. The left vocal cord was severed from its anterior at¬ 
tachment and it, with the arytenoid cartilage, was entirely 
removed. All partially detached pieces of tissue and shreds 
of mucous membrane were taken away by the means of 
curved shears. As the hemorrhage was slight, it was not 
thought necessary to pack the trachea. What hemorrhage 
there was was controlled by cold water, antiseptically treated 
with hydrarg. bi chlor., and applied with small silk sponges 
attached to the end of pieces of whalebone. The wound 
