SCHOOL AT LYONS. 
251 
quently watering their horses, are taking the most effectual means 
against the possibility of such diseases : or, should they occur, 
frequent washing with soap and water, and the application of 
emollient liquids, and regular and careful grooming, and frictions 
with oil of cade*, mixed with a third or half the quantity of 
olive oil, according to the degree of redness or tenderness of the 
part, will generally suffice for the cure. 
Now and then, however, we meet with cases of extraordinary 
obstinacy. A mare, belonging to General de St. Michel, had 
mange on her left thigh, which would not yield to any thing but 
the nitrate of silver. Our difficulty consisted in the almost im- 
possibility of preventing her from gnawing herself ; and it was 
not until after a multitude of contrivances that we could accom- 
plish our purpose. 
As for that species of mange in the dog which is accompanied 
by redness and exudation, we have never been able to produce 
more than temporary benefit. 
Rabies. — The experience of the last year confirms an opinion 
which we had previously entertained, — that it is not when the 
heat is greatest, but when the air is moist, whether accompanied 
by heat or cold, that this disease oftenest attacks the dog. In 
the months of September, October, April, and May more dogs 
died rabid than during the other eight months. We have, how- 
ever, but little advanced towards a knowledge of the successful 
treatment of this frightful disease. The cauterization of the 
wound, whether by the hot iron, or the butyr of antimony, or the 
nitrate of silver, continues to uphold its reputation as a pre- 
ventive. We have had sufficient proof in the dogs which the 
police have brought to our infirmary, that rabies does not appear 
in more than one dog in fifty of those who have been cauterized. 
Goitre. — With the exception of some dogs, such as the pugs, 
with large heads and short necks, and that are half stupid, this 
disease does not appear until some time after weaning. The 
gland continues to enlarge as the dog gets old, until it causes 
great difficulty of breathing, and shortens the life of the animal. 
The treatment had recourse to for the human being is often suc- 
cessful in the middle-aged dog. The old dog is with more diffi- 
culty acted upon, and, as for the young dog, we have observed 
that he dies within a few days after the disappearance of the 
goitre : the most careful dissection, however, has not detected 
the cause of death. 
* The oil of cade is obtained by the slow combustion of a species of 
juniper that grows in the south of France. It is of a brown colour, with 
a disagreeable odour, less fetid than animal empyreumatic oil, and more 
resembling tar. It is an oil of tar. — Edit. 
