NORTH OF ENGLAND VETERINARY MEDICAL ASSOCIATION. 489 
By degrees the marked suspicion with which all passing 
objects are at first regarded grows less as the affection pro¬ 
ceeds ; the ears are brought more into requisition, and espe¬ 
cially is this to be observed in those instances where pressure 
causes blindness of one eye only. 
In the case before us blindness took place gradually, and 
became complete in both organs shortly before professional 
assistance was sought. For some time prior to the loss 
of vision the peculiarity of the disease was manifested also 
by a practice, which increased with it, of the animal violently 
rubbing the right nostril against the nearest object, and 
when doing so, being entirely oblivious to all that was 
passing. 
It was at the commencement of the present year that the 
case was first introduced to the notice of Mr. Thompson, 
when the symptoms were developed in their intensity. The 
appetite was ravenous , other functions performed with regu¬ 
larity; the condition, as indicated by appearances, all that 
could be desired. 
As will be already supposed, the progress of such a case 
would be the reverse of favorable, yet the owner pressed for 
something to be done, and accordingly our friend placed a 
smart blister to the poll, and administered cathartic medi¬ 
cine. Shortly afterwards consent was given for the destruc¬ 
tion of the creature, which was all but useless, from the 
violence of the symptoms. The head being reserved for 
examination, on Thursday, the 18th of February, Mr. 
Thompson kindly forwarded me an invitation to be present; 
and from the state of the diseased parts as they were exhi¬ 
bited to view I have been enabled to put together these 
few remarks, under the belief that at least the subject is of 
an interesting nature, and calculated to form an integral 
part of our Society's transactions. 
EXAMINATION OF THE BRAIN. 
The frontal and parietal bones were carefully removed, 
when sufficient evidences existed of a turgid state of the cir¬ 
culatory system within and around the organ; but as it was 
finally removed from its well-adapted case, the larger and 
important network of vessels at the base were fully filled, and 
when necessarily divided by the scalpel, clots of blood rolled 
out. 
An incision was carried through the right hemisphere, 
commencing over the corpus callosum, in the anterior lon¬ 
gitudinal fissure, dividing the lobe over the lateral ventricle, 
xxxvii, 32 
