98 
ON CHRONIC MENINGITIS IN THE DOG. 
his travels, and always with a quick pace. Latterly he began to 
take a circular course, instead of following that of the walks, 
which were rectangular. He then traversed the squares, totally 
regardless of, or not seeing, the obstacles that were in his way. 
When he was stopped by some obstacle, he at first endeavoured 
to make it give way ; but if it resisted his efforts in a circular 
direction he turned aside, but always towards the left. The 
nearer he approached his end the smaller were the circles that 
he took ; and, in the latter period of his existence, he did little 
more than turn, as he would on a pivot. When the time arrived 
that he could walk no more he used to lay himself down on his 
left side, or, if we put him on the right side, he turned his head 
always to the left. 
During the whole of the case I did not observe any very evi- 
dent sign of palsy. For a considerable period he had eaten with 
appetite ; but, nevertheless, he grew thin from day to day, al- 
though he was too well fed by the owners, who continually 
crammed him with food, notwithstanding my efforts to pre- 
vent it. 
At the post-mortem examination I found a remarkable thick- 
ness of the meninges on almost the whole of the left lobe of the 
brain. 
The dura-mater, the two leaves of the arachnoid membrane, 
and the pia-mater, did not constitute more than one mem- 
brane of the usual thickness, and presented a somewhat yellow 
colouring. The cerebral substance of the left lobe appeared to 
be a little firmer than that of the right lobe. The scissures of 
the cerebral circumvolutions were here much less deep than 
those of the other side. The red vessels which ran in the scis- 
sures were of smaller size, and, in some places, could scarcely be 
discovered. 
I will conclude this article by mentioning, very briefly, a fact 
which has some analogy to the former, but has for its object a 
dog that has been completely cured. 
Madame C — , Rue Faubourg Poissonniere, 20, had a small dog, 
five months old, that had already been attacked several times with 
epilepsy, and now became subject to the almost continual presence 
of it, and had already a propensity to the left : his head retained a 
degree of heat when the fits had passed. I was glad to see this 
symptom disappear, which had given me the most uneasiness, 
because it is usually a very serious one, and generally announces 
a permanent lesion. I contented myself by prescribing manna in 
the drink, and ice on the head. Madame C — had sufficient deter- 
mination to pass two days and two nights with the poor animal, 
and to continually keep the ice on his head. The dog was living 
four years after the last fit. 
