366 SMALL-POX IN THE DOG. 
I should also add a short account by Hurtrel d’Arboval, in his 
Medical and Surgical Dictionary, of an eruptive disease that oc- 
cured in the veterinary school at Lyons, which was propagated 
by contagion, and to which the name of small-pox was given. 
It is unfortunate that this malady is not at all satisfactorily de- 
scribed*. 
The variola of the dog is, nevertheless, not a rare disease ; at 
least it has often come under my observation, and I do not 
think that I am singular in this respect. It has much analogy 
to the small-pox of the human being, and the clavelee of the sheep. 
Barrier has very fairly described it, except that he has insisted 
too much on the accessory symptoms, and neglected the essen- 
tial ones. These accessory symptoms are exceedingly variable : 
the greater part of those which Barrier mentions are also of rare 
occurrence, and they are very far from appearing in the order in 
which he has described them. I have never had the opportunity 
of seeing many of them. My advice is, that in our description 
of the variola of the dog, it would be better to neglect these acci- 
die symptoms of measles except the cough, and, instead of that, there was a 
violent heaving at the flanks. The same medicine was given to it as to the 
children : the eruption and its disappearance were precisely like those of the 
human being. 
M. Barrier quotes this from Paulet’s History of the Small-pox; and he 
mentions one circumstance that, I apprehend, stands quite alone in medical 
history. The pulse of this monkey — a very small one — could scarcely be 
reckoned on account of its rapidity ; but at length, examining it at the axil- 
lary artery, he found it to be about 400 per minute. — Y. 
* The passage in Hurtrel d’Arboval is as follows : “In 1809 there was ob- 
served at the Royal Veterinary School at Lyons, an eruptive malady among 
the dogs, to which they gave the name of small-pox. It appeared to be 
propagated from dog to dog by contagion. It was not difficult of cure, and 
it quickly disappeared when no other remedies were employed than mild 
aperients and diaphoretics. A sheep was inoculated from one of these dogs. 
There was a slight eruption of pustules around the place of inoculation, 
but nowhere else ; nor was there the slightest fever. It is to be regretted 
that some other experiments had not been tried on this and other sheep.” 
At another time, and also at the Lyons school, a sheep died of the regular 
sheep-pox. A part of the skin was fastened during four-and-twenty hours 
on a healthy sheep, and the other part of it on a dog, likewise in apparent 
good health. No effect was produced on the dog, but the sheep died of con- 
fluent sheep-pox. 
Paulet, in his valuable “ Recherches sur les Maladies Epizootiques,” speaks 
of what he calls la clavelee in turkeys and geese, but altogether a different 
disease. “It is manifested principally at the head and neck by the appear- 
ance of inflammatory tumours of different forms — sometimes as large as a 
pigeon’s egg, which change into abscesses, with profuse suppuration and 
destruction of the neighbouring parts, and in this case the ultimate destruc- 
tion of the patient.” This is an aggravated form of that mysterious and 
misunderstood and murderous disease, the pip. Vol. ii, p. 343. 
I am collecting these passages, so far as my limited reading will supply 
them, in order to enable us to form a more correct opinion of the theory 
which M. Leblanc adopts in the very ingenious paper which we are now 
translating. — Y. 
