THE VETERINARY ART IN INDIA. 
15 
and intestines ; and such have been the advantages I have found 
it to possess, that I feel the greatest confidence in recommending it, 
with the hope that every member of the profession will give this 
drug a full fair trial. The following is the form I have generally 
adopted : — Tobacco Jss to §j, boiling water Oj to Oij ; macerate 
for ten or twenty minutes in a vessel lightly covered : strain off 
and give warm, either alone or with other suitable medicines. 
THE VETERINARY ART IN INDIA. 
By J. Grellier, Esq., M.R.C.S. 
[Continued from p. 701, vol. xvi.] 
I SHALL now proceed to describe the diseases to which the eye 
is liable, which, though much fewer in number than in the human 
subject, are more frequent and fatal to vision. In the horse we 
have but three diseases, viz. ophthalmia, or inflammation of the 
eye ; gutta serena, or palsy of the eye ; and the worm in the eye. 
Inflammation, as I before observed, generally arises from na- 
tural, very seldom from accidental causes : if, however, it should 
proceed from external violence, it will always disappear under 
the directions I shall lay down for the constitutional treatment 
of which I am about to speak. 
It generally appears about the age of five or six, being the time 
the animal arrives af maturity. The proximate causes are, mostly, 
too much or too little exercise, want of fresh air, foul litter, &c. 
That the latter is frequently so, I am much inclined to believe 
from horses in Europe that are kept in close and foul stables, 
as in London, being much more liable to this disease than in the 
country, where the stables are cleaner and less confined. In this 
case, the effluvia arising from the dung and urine mixed with 
the litter corrode the extreme delicate coats of the eye, which 
soon attracts the blood in large quantities to the seat of irritation, 
whence proceed all its symptoms. 
The more external symptoms are, an increased discharge of acrid 
tears, which corrode in their passage down the cheeks, and may be 
likewise observed dropping from the nose. The eyelids, particu- 
larly the upper, are more or less swelled, and the eye looks cloudy 
and becomes divested of its transparency. The pupil is scarcely 
discernible. Sometimes a bright yellow appearance occupies the 
centre of the eye ; the patient becomes heavy, and hangs down his 
head, which he frequently shakes : the haws, if the inflammation 
