288 Account of a Filaria in a Horse’s Eye. 
tinct view of his tormentor. I believe the horse was quite blind 
in that eye, for it appeared as if all the humors were confounded 
together, and that the worm had the whole orb to range in, which, 
however, was not of a diameter sufficient for the worm to extend 
its whole length, as far as I could discover. As this is a very un- 
common Circumstance, and may affect some philosophical. doc- 
trines, it is much to be lamented that the horse had not been pur- 
chased, and the eye dissected for betterexamination. ‘That there 
was a living, self-moving worm-within the ball of the horse’s eye, 
free from all deception or mistake, I am most confident. How 
this worm got there, or if bred in so remarkable a place, where 
its parents came from, or-how they contrived to deposit their se- 
men or convey their egg into the eye of an horse, I leave for oth- 
ers to determine.” 
The additional particulars communicated by-Dr. Morgan, are 
that the horse was of a sorrel color, nine years old, and belonged 
to Dr. Dayton, near Elizabethtown, New Jersey. The first cir- 
cumstance which attracted the owner’s attention was, that from 
being very mild and gentle, the horse suddenly became vicious 
and unmanageable, and ran away and dashed the chair to pieces. 
When seen by Dr. Morgan the worm was about four inches in 
length, and “as thick as a knitting-needle, or piece of common 
twine.” -'The aqueous humor was of a white, milky appearance, 
bordering on the color of acataract, which was supposed to be 
owing to a breaking down of the vitreous humor, which had thus 
discolored the aqueous portion. The iris was thought to be de- 
stroyed, but this was doubtless a mistake. At this time the ani- 
mal passed freely from the anterior to the posterior chamber of 
the eye, and vice versa, which the Dr. supposed could not have 
happened unless the partition between had been broken down. 
But it so happens that there is no partition between the two ex 
cept the thin membrane of the ris, through which there is a0 
opening, the pupil, of sufficient size to permit a free passage- 
“It may be presumed,” says the writer, “that whatever might be 
the state of vision, that eye must be now blind. ‘The lids are 
commonly closed, probably owing to pain excited in the eye by 
So-ttoublesome a guest ; but there is no blood-shot appearance on 
the c hea, though the surrounding parts, namely, the palpebre, are 
umid. To get a view of the eye, the keeper commonly 
horse on its back with an open hand, at which, as if 
: i, 
cof See — 
