THE 
VETERINARIAN. 
VOL. XXXV. 
No.413. 
MAY, 1862 . 
Fourth Series. 
No. 89. 
Communications and Cases, 
PARTIAL BLOCKING UP OF THE TRACHEA OF 
A HORSE BY AN ORGANISED DEPOSIT. 
[with specimen.] 
By Henry Lefper, M.R.C.V.S., Aylesbury. 
Thinking that the accompanying portion of a diseased 
trachea might be interesting in a pathological point of view, 
I take the liberty of sending it to you, as being in my opinion 
a very rare specimen of disease. 
The history of the case is as follows: 
On the 3rd of February I was requested to see a bay 
carriage horse, four years old, well-bred, and in good condi¬ 
tion, the property of the venerable Archdeacon Bickersteth. 
The coachman complained that he made a great noise when 
driven, and more especially when going over rising ground. 
On testing him for roaring, I was much surprised at the 
difficulty of respiration which existed. The ordinary treat¬ 
ment of stimulating liniments to the throat was prosecuted 
for some time, but without any improvement. Trial was 
then given to the biniodide of mercury externally, and to 
daily doses of the hydriodate of potassium. During all this 
time the general health and spirits of the animal continued 
good, but the difficulty of respiration gradually got worse. 
On the 26th of February I adopted the recommendation of 
my much valued friend Mr. Robinson, and pretty freely 
applied the actual cautery to the skin, in the vicinity of the 
larynx, but without any relief being afforded. 
On visiting him a month afterwards, viz., on the 26th of 
March, I found him much worse, and that the noise could 
now be heard at some little distance, even when he was in a 
state of quietude. A few days later, I satisfied myself that 
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