TUMOUR IN THE BRAIN OE A HORSE. 
83 
suitable instruments^ I had to make the best use I could of 
an old saw and an axe. In making the upper transverse 
section of the skull, I unfortunately cut through the mem¬ 
branes of the brain, when about two drachms of a dark, 
chocolate-coloured fluid escaped. On removing the detached 
piece of bone the tumour presented itself, lying in the same 
situation as the one did w'hich I sent up in October; but on 
detaching the head at the occiput there was nothing to indicate 
anything wrong with the posterior part of the brain as in 
that case. 
At first I did not think of forwarding the specimen to 
you, but afterwards I determined to do so, believing it would 
be interesting; more especially as it could be compared with 
the other. 
I have since learned that nothing very unusual was noticed 
about the mare before the 30th of September. That sub¬ 
sequently to that date she appeared dull, and had on one 
or two occasions stopped in her work as if stupified. In a 
few minutes these indications of ill health would go off, when 
she would resume her labour. No further notice was taken 
of her, as she did her work and improved in condition up to 
the time of visit. 
I should further observe that no paralysis w’as present in 
this case, and that the mare invariably turned on the near side. 
To Professor Yaenell. 
REMARKS ON THE ABOVE CASE BY PROEESSOR VARNELL. 
Individually I am much obliged to Mr. Toll for sending 
me a second very interesting case of disease of the brain of a 
mare, which lately occurred in his practice. It is some¬ 
what remarkable that the character of the disease in this case 
should so nearly resemble that of one which I received from 
him a short time since, which will be found to be recorded 
in the November number of the Veterinarian for 1862, with 
some observations that I made upon it. 
I think it important that the present case should also be 
recorded, as, in conjunction with the othfer, they will afford 
more matter for reflection, both in a pathological and a phy¬ 
siological point of view, than either of them could possibly 
do by itself. 
On comparing the symptoms of this case as described by 
Mr. Toll in his report with those of the former one, it will 
be observed that there is a great similarity between them. 
The most prominent symptoms in the present instance 
were, a torpid state of the bowels, extreme stupor, and a dis¬ 
position to turn round in the box. This turning, however, 
