TRANSLATIONS FROM FOREIGN PAPERS. 
395 
child. Each had a magnificent generalized eruption. Since that 
time I have vaccinated them three times without result. They 
were sold before I could make another attempt. 
Upon horses brought to our hospitals for various diseases, I 
have, almost every year, practised numerous inoculations, from 
horse to horse and from cow to horse, and I have always met with 
refractory subjects. 
It is certain, then, that while experimenting upon horses of all 
ages, one will meet with a number and variety of negative facts, 
no matter by what process the experiments may be conducted. 
For this reason, I believe other proofs necessary, before accepting 
as definitive the conclusion of M. Chauveau, viz., that animals, in 
which the injection of vaccine under the skin or into blood ves“ 
sels has remained negative, possess, nevertheless, the aptitude to 
contract the disease, but were protected, however, by this experi¬ 
ment which gave no apparent result. 
However, it is now established that the horse-pox may be in¬ 
oculated in horses up to that time virgin of it, by all the process¬ 
es which have for their first effect to introduce the virus intact in¬ 
to the economy. Besides, from what precedes, it results that the 
surest process of transmission, as well as the simplest and the ea¬ 
siest, is the sub-epidermic insertion with the lancet. And last, 
it is also proved, by other experiments of M. Chauveau, that in 
other species, and the domestic hybrids of the genus equus , the 
facts are the same as in horses. 
The mode, so ingenious, of inoculation with the liquid obtain¬ 
ed from the surface of the cutaneous pustules of the horse, is not 
the only one by which one may propagate the disease; there are 
others, not published as yet, but which by their interest as affect¬ 
ing the history of horse-pox, I may be allowed to mention here. 
In a paper addressed to the Central Society of Veterinary 
Medicine, M. Charles Martin reports that he has succeeded in in¬ 
oculating gourme by taking the liquid from the nostrils and from 
the pus of an abscess, introduced under the epidermis of healthy 
horses. He obtained two negative and twelve positive results 
out of fourteen experiments. 
But a single fact would be sufficient, especially if absolutely 
