802 TRANSLATIONS FROM CONTINENTAL JOURNALS. 
the lower parts of the legs of the horse, which has hitherto 
been confounded with grease, which, however, with careful 
examination might easily be distinguished from it; and it will 
further make them comprehend the necessity and importance 
of studying the diagnostic characters on every occasion, so 
as to ascertain with all possible authenticity the property 
they may possess of producing the vaccine by inoculation 
either in the cow or in children. One word more and 1 have 
finished. M. Bouley, a little while ago enumerated several 
diseases very different from each other which according to 
some experimenters had, when inoculated either in the cow 
or children, produced the vaccine. These were grease, cu¬ 
taneous furuncle (Javart), and a gangrenous affection of the 
legs described by M. Herting of Berlin. Our colleague 
seems to accept these results as if they were well established 
facts, insomuch that he does not contest them. I say with 
M. Depaul that, in a matter of such importance, what I have 
heard on the reality and the scientific certitude of the results 
are neither sufficiently defined nor circumstantiated enough to 
edify me. I will further state that so great is the confusion 
on this question as to its origin, that, if we are to believe 
Careno, of Vienna, quoted by Bousquet in his report, and 
who was the translator in Latin of the English text of Jenner’s 
work, M. Bouley might have added to his list and cited also 
another malady of the horse which according to some authors 
is likely when inoculated to produce the cowpox, viz., the 
canker that affects the frog and sole and sometimes the whole 
of the bearing structure of the foot of that animal. It is 
from this in fact, if the Latin translation of Careno is correct, 
that the illustrious author derived the origin of the cow- 
pox, under the denomination of grease. This is the transla¬ 
tion, ^^planta pedis inflammata tumet, unde materia peculiaris 
indalis profluit, quae in corpore humano morbum variolis ita 
similem excitat ut plane non dubitem variolas ipsas ab hac 
materia originem traxisse.'^ If it is the fact that it was 
the foetid secretion from the tumefication situated under the 
foot that Jenner considered as the affection from the inocu¬ 
lation of which was produced the vaccine, I can conceive no 
other affection to which the application could be made except 
to the affection designated canker. M. Depaul fears that 
he has not been understood in the last meeting, pressed as he 
was for time and obliged to pass rapidly over the subject, he 
therefore wishes to refer back to some points of his argu¬ 
ment. There are two distinct phases in the history of the 
fact of Toulouse, as, first, it was believed that it was the grease 
which had been inoculated; afterwards it was no longer the 
