TRANSLATIONS FROM CONTINENTAL JOURNALS. 761 
The same as if it were admitted as complete and undeniable 
as the case communicated by M.M. Maunoury and Pichat^ 
which is a case in which a man had been affected with vaccinal 
pustules after having been in contact with a horse affected, 
with grease. It would be necessary to say that a tuberculous 
malady of the skin of the horse has the property of creating 
the vaccine. There would thus be two maladies of the horse^ at 
least^whichj being very different in themselves,would be capable 
of producing the vaccine, and as, in my opinion, and in the 
opinion of many others, the vaccine is also created by itself, 
or spontaneously, and without the assistance of variola, or 
grease, medical men will, therefore, have no lack of vaccinal 
matter for some time to come. 1 would, however, advise them 
not to put too much dependence on that which is to be derived 
from the variola or the grease of the horse. Nature is not 
in the habit of deviating manifestly from the rule which has 
been traced for her. It is telling you, gentlemen, that I still 
believe in the spontaneous vaccine in the cow only, and I 
will not admit of any other origin of this malady, until facts 
more conclusive than those which are known up to the 
present time, have demonstrated to me that the vaccine may 
be created at will, and under influences determined before¬ 
hand, and notably under the influence of the contact with, or 
the inoculation of the grease of, the horse, and of a pustulous 
disease described by MM. Lafosse and Sarraus; and as the 
grease is not very rare, and the malady of Rieumes must also 
be common, there is every reason to hope that some fresh 
observations will soon be made to resolve this interesting 
question which is at present the subject of discussion. But 
it will be indispensable that great care should be taken to 
avoid the negligence with which the authors of these facts 
published on the origin of j^accine have been reproached—neg¬ 
ligence which has hitherto prevented formulating a definitive 
conclusion. The few words spoken by M. Renault at the last 
meeting, gave me an opportunity to relate what took place 
relative to the diagnosis of the malady of the mare from which 
the matter was taken by which M. Lafosse inoculated. From 
what I had read and seen, it was with the greatest astonish¬ 
ment that I learned from the medical journals that they had 
succeeded, at the Veterinary School of Toulouse, in producing 
the vaccine by ihe inoculation of the matter from the grease 
of the horse. I immediately resolved to go and assure 
myself, not whether the mare of M. Corail was affected with 
the grease—a fact which I could not doubt, from what had 
been announced in the letters from Toulouse, which had 
been published—but to see in what state the grease was which 
XXXVI. 50 
