382 TREPHINE IN DISEASE OF SINUSES OF THE HEAD. 
carcass and make a minute post-mortem examination, which 
was accordingly done on the 25th, before several gentlemen. 
Post-mortem examination .—Although the colt had now been 
buried sixteen days, very little decomposition of the body 
had taken place. Having removed the extremities, the head, 
fauces, and spine were minutely examined, and found to be 
in a normal state. The stomach, which was moderately 
filled with food, was carefully taken out and opened; and, 
principally in its cuticular portion, a quantity of masticated 
vew leaves and small branches of the tree were met with. 
There were also several detached bots in the stomach, but 
there was not the slightest discoloration of the lining mem¬ 
brane of this organ or the intestines, and the rest of the 
abdominal viscera were healthy, as were also the lungs and 
heart; but upon opening the pericardium, it was found 
about half full of a thick sanguineous fluid. 
I have been induced thus to trespass upon your space, 
so that the owners of horses may be put upon their guard 
respecting the poisonous properties of the yew, for I am 
surprised how few gentlemen know that it is poisonous. To 
our own profession I think it is a most important subject, 
and one which we should be well acquainted with. 
I am sorry that so much time elapsed between the death of 
the animal and the post-mortem examination, as otherwise 
the morbid changes which had taken place might have been 
easier traced to their true cause. 
THE USE OF THE TREPHINE IN CASES OF 
DISEASE OF THE SINUSES OF THE HEAD. 
By A. J. Owles, Y.S., H. M. Carabineers, Muttra, Bengal 
Presidency. 
The paper in a late number of the Veterinarian , 6 On Dis¬ 
eases of the Nasal Cavities/ by Professor Del wart, with your 
editorial remarks thereon, corroborative of the beneficial 
result to be expected from the use of the trephine in certain 
cases of discharge from the nostrils, induces me to send you 
a short account of a case which has lately been under my 
care. I could add others, if my object were merely to write 
a long letter, but I assure you my desire is to testify to the 
good of trephining in diseases of the sinuses of the head, as 
far as my own experience enables me to do so. 
