246 TRANSLATIONS FROM CONTINENTAL JOURNALS. 
of liis time to distingiiisli the one from the other. But this 
is not the rule; in the ordinary way there are two successive 
eruptions^ one local and one general^ spread thinly over the 
whole surface of the body. If, therefore, the mare of M. 
Corail had received the disease by contagion from the human 
subject, she, it is supposed, would have communicated it in 
the same manner, that is, the two eruptions which are 
inherent to it would have followed. It is to be regretted 
that M. Sarrans did not try the inoculation of this variolous 
disease from one horse to another. 'We have tried the 
transmission of variola from one species of animal to another 
more than once, but without success. Yet others boast of 
having lieen more successful. Among them are Thiele, De 
Cazan, and Bobert Ceely. To this we have nothing to say, 
only the fact would.be invested with greater authority if it 
had been thus confirmed. When M. Cayril composed his 
part of the report, which is added to that of ]\I. Lafosse, he 
had already vaccinated more than 200 children with this 
new virus, and he had never seen more than one eruption, 
viz., the local; at least he does not mention any secondary 
or general eruption; and those who know him, know also 
that his silence is equivalent to a declaration. The fact of 
Toulouse is therefore isolated, and is an event in science 
which might be the inauguration of a new era in the history 
of vaccination. 
On meeting with the vaccine in the cow, which happens 
sometimes, there is nearly always something wanting. Sel¬ 
dom does the observer see the first period of the eruption; 
still more rarely is there a skilful hand to collect the virus on 
the udder of the animal. Jenner himself at first took it from 
the hands of those who had been accidentallv inoculated, and 
we have not been better favoured in 1836. It has not been our 
lot to see the vaccine on the udder of the cow; we have only 
seen the remnants of it; but who would dare, notwithstand¬ 
ing, to doubt the reality of the discovery ? 
The facts, however, mutilated as they are, have neverthe¬ 
less, according to our opinion, their full value and importance, 
the same as if they were the most complete. 
It is not always necessary to see the various stages of the 
affection, as the mind can easily supply that sense. But here 
there is nothing wanting. The malad}" of the horse was seen 
by those who were best qualified to appreciate it; it was not 
communicated accidentally or by chance; art took it at its 
source and inoculated it, and so through all its intermediate 
stages nothing more is av anted to give it its true designation. 
Nevertheless, the novelty of the malady has rendered us sus- 
