20 
TETANUS SUPERVENING OPEN-JOINT. 
other day on other business, I called to see these animals, 
and operated upon two of them by slitting open the cornea 
with a pair of scissors, and allowing the parasite to escape. 
In every case it comes away alive, and can be kept alive in 
water. 
These geese have access to a rivulet, with a clay bottom, 
that communicates with the River Fayne, and in which are 
numbers of the common ditch leech. Is it possible that 
the leech-spawn swallowed by the animal could be thus gene¬ 
rated, or how gets the parasite into the chamber of the eye ? 
On the subject of worms in the eye of the horse, the fol¬ 
lowing short letter is published in 4 PercivalPs Lectures/ 
vol. iii, page 235 : 
44 I have been favoured lately with some observations on 
the presence of these worms in horses by W. Twining, Esq. 
(surgeon to the Commander-in-Chief), who has written on 
the subject in the 4 Medical Society’s Transactions’ at Calcutta, 
from which I will now give you an extract. He says— 
4 Sir E. Home mentions ’ in his 4 Lectures on Comparative 
Anatomy,’ that the arteries of the ciliary processes in the 
horse are comparatively very large; and that Sir E. is led 
to believe that the two species of worms, the strongylus and 
filaria , found alive in the aqueous humour of that animal in 
India, obtains access through these arteries; and this opinion 
is the more probable since similar worms are known to be 
occasionally in the blood.’ Mr. T. adds that several cir¬ 
cumstances concur to render it probable that the ova of 
th z filaria equi are received into the stomach with the food, 
and that these ova, taken up by the absorbents, flow with the 
blood into various parts of the body favorable to the deve¬ 
lopment of the w orm, which having been accomplished, its 
further progress may be impeded by its augmented size. Sir 
A. Cooper’s observations on worms found within the coeliac 
artery of the ass may be considered corroboratory of all this, 
though it must be confessed the subject yet lacks eluci. 
dation.” 
TETANUS SUPERVENING OPEN-JOINT. 
By F. F. S. Constant, M.R.C.V.S., V.S. B.H.A., India. 
On perusing some of my notes on the treatment of horses, 
the property of officers, I find the following : — I was called to 
