TREATMENT OF NASAL GLEET BY TREPHINING THE SINUSES. 381 
horse suffering from a severe nasal discharge of a fetid 
character on the off side. On investigating the history of the 
case I found that the horse had done no work for three months ; 
the discharge with the accompanying debility being so great 
as totally to incapacitate him. 
After a careful examination I came to the conclusion that 
he was suffering from an extension of catarrhal disease to the 
facial sinuses, and that trephining was the only remedial mea- 
sure calculated to be beneficial. In this opinion Professor 
Pritchard, who afterwards saw the case, fully concurred. 
After the administration of mineral tonics for a week I cast 
the horse for the operation, and commenced by applying the 
ether spray, which answers well for all cutaneous operations 
with the knife. On opening the frontal sinus the appearance 
of a quantity of thick white pus immediately proved that our 
diagnosis was correct. I then directed the ether spray to the 
maxillary sinus, on trephining which a very small quantity of 
pus exuded, the fetor of which was considerable. 
On further investigation of the sinuses I found that some 
of the inner plates of the frontal bone were affected with 
necrosis ; this condition of parts accounted for the great fetor 
which existed. 
After clearing the sinuses by means of probes, forceps, 
syringes, warm water, &c., and taking away as much of the 
diseased plates of bone as possible, I allowed the animal to 
get up, and had him placed in a loose box. 
The following day there was scarcely any discharge from 
the nose, but a quantity from the openings which I had made. 
After having the sinuses well syringed with warm water for 
two or three days, I applied a weak solution of Cal. Chlor. in 
order to destroy if possible the great fetor, which had been daily 
increasing: by application of the solution twice a day for a week 
I succeeded not only in freeing the sinuses from fetor, but 
likewise the pus. This treatment was followed up by a weak 
solution of Zinci Sulph. In about three weeks the discharge 
had entirely ceased from the nose. The frontal and maxillary 
sinuses and the wounds in the skin had partially healed over. 
The horse was put to work, and has been at work every day 
since. 
When I saw him last week the only symptom which had not 
been effectually subdued was a slight faint smell from the 
nostril, but in every other respect he was perfectly well, and 
evidently not in the slightest degree suffering from constant 
work. 
XLIII. 
26 
