710 
SOCIETY MEETINGS. 
carefully to see if any signs of periodic ophthalmia were pres¬ 
ent. I passed the horse and regret it ever since. That horse 
had periodic ophthalmia. 
Dr. Hazvley : Why did yon pass the horse ? j 
Dr. Quitman : To do justice to the dealer as well as to the 
buyer. We often find horses with such opacities, or rather 
specks which are all right. Possibly this horse was prone to | 
periodic ophthalmia. j 
Dr. Hazvley : Then yon did an injustice to the buyer. j 
Dr. Ryan : In regard to this speck in the eye, I think any j 
scar or speck causes a defect of vision. If it was very close to j 
the sclerotic it would not cut much figure. But if there is any | 
speck within the cornea I would not hesitate to pronounce him I 
unsound. ' 
Dr. Htighes: I think we should all join Dr. Merrillat in | 
congratulating Dr. Hawley on his paper. It deserves every 
consideration and I hope to see it published. I would like to | 
hear an expression of opinion in regard to the nature of crib- ■ 
bing. I would like to know whether it is possible for such an | 
animal to actually swallow air and inflate himself. With regard I 
to weaving, what is a weaver anyhow ? What is the cause of i 
it ? ^ Is it a nervous disease ? If it is- what authority is there for j 
saying so ? Physicians often ask us these questions and it is a j 
slur on us not to be able to answer these questions satisfac- I 
torily. I 
Dr. Campbell: Dr. Merrillat will read on weaving and 
cribbing. 
Dr. Hughes : If such is the case, I withdraw my questions, i 
Dr. Robertson : In regard to the scar in the e3^e. Another i 
thing I would like to know about. There are some operators i 
that operate on periodic ophthalmia. At the time of opera- j 
tion there was a distinct scar on the eye. The operator assured | 
me that after he operated on the eye there would be positively ; 
no return of the ophthalmia. Even if the eye was clear from 
opacity and only the scar from the operation I am dubious ! 
whether I would be justified to pass such a horse. I had a horse : 
with a speck in the eye and he would at times jump as if sur- ' 
prised by something being due to interference with his vision i 
and I think that a veterinarian cannot be too careful in such 
cases, and attention of the buyer should be called to such specks j 
or scars whenever there are any. • 
Dr. Quitman : What was this operation you refer to and > 
how would it prevent further ophthalmia ? 
