HUMAN AND ANIMAL VARIOLAS. 
same as the children in the Ilopital de la Charite. This kind of 
inoculation is now-a-days well known, and it is really not neces¬ 
sary to have recourse to a new inquiry to appreciate its signifi¬ 
cation with regard to the doctrine of identity of variola and 
vaccinia. What did Thiele and Ceely communicate to the cow ? 
Was it cow-pox? It was nothing of the kind. The excellent 
drawings made by the Commissioners, representing the characters 
of the eruption produced in the ox by variolation, are evidence 
that there is not a very distant analogy between cow-pox and the 
results of small-pox inoculation. The Commissioners had not 
seen Ceely’s drawings, consequently they did not know if they 
differed from those it produced; but they ventured to assert that 
if they differed from these, and represented eruptions of veritable 
small-pox, the artist had not been absolutely inspired by the real 
truth. Nothing that Thiele and Ceely had done in inoculating 
the cow with variola could have produced anything resembling 
cow-pox, not even the extensive variolous wounds that were ob¬ 
tained, by making long and deep incisions in the skin, and pour¬ 
ing large quantities of small-pox virus therein. But if their cows 
did not have cow-pox, how were these two experimenters able to 
vaccinate children with the matter from them ? The cows could 
not give that which they had not, say the Commissioners; and 
this is why, they affirm, the children operated on by Thiele and 
Ceely received small-pox ; and it was nothing but small-pox which 
was developed on all their inoculated subjects. It was variola 
such as the Commissioners had seen in their own experiments— 
variola limited sometimes to the local primary eruption, and quite 
like vaccinia; variola often accompanied by a secondary eruption, 
which gave it its special physiognomy. Between the descriptions 
of the two experimenters, and those given by the Commissioners, 
as to the eruptions which offered benignant characters, there was 
not the slightest difference; and if the children inoculated by the 
latter were affected with variola in consequence, so should those 
of Thiele and Ceely. If the virus of the latter is really vaccine, 
then it should give cow-pox to the cow at once, like the Jennerian 
vaccine; if not, then it will only produce papules of the variolic 
eruption. 
