Original Vaccine Ihistitution. 367° 
ceptibte of the small-pox, it was very conceivable that a 
failure might not yet have occurred in many places ; and it 
was remarked that on this:account, without supposing any, 
imposition, a delusion might subsist for some time that per- 
sons were secure who in reality were not so. 
With regard to the accounts from abroad, the Seitedcs 
was almost entirely negative with regard to failures. This 
evidence, however, was stated to be of little weight com- 
paratively to that in London, for various reasons. 
Ist. For the reasons assigned for the exemption from fai- « 
lures in this country out of London. 
2d. Because the mass of people bad not the liberty of 
acting or speaking as they profess under our government ; 
howeyer, lately accounts had arrived, and more might be 
expected, of failures in India. 
In the last place was discussed the proportion ae failures 
in the small-pox inoculation ; and here it appeared astonish- 
ing, that any sensible practitioners should ever have consi- 
dered the small-pox inoculation as upon the same footing ° 
as vaccination upon this point. It would be unjust to place 
the'two modes of inoculation upon the same footing 5 for 
the most extensive inoculators ia this country had declared 
they had never seen the small-pox twice in the same per- 
son. Such was the evidence of the late Dr. Archer, baron 
Dimsdale, sir William Watson, Dr. Woodville, and the 
whole family of the Suttons. Thus, while in the course 
of sixty years, or from 1746 up to 1806, at the Small- . 
pox Hospital, amongst 60,000 persons who had under- 
‘gone the small-pox, not one had been known to have 
taken the small-pox a second time; yet in the course of 
seven years vaccine practice at the samé place, it was well 
known that a certain number had taken the small-pox sub- 
sequently to the cow-pock, 
Tt was ‘not to be concluded, however, from. these state- 
ments, that vaccination was not greatly preferable to vario- 
lation ; but'it was to show tlie necessity of a second inocu- 
lation until the circumstances ‘should be known im which ° 
seeurity could be given ‘by one inoculation, 
It was the conduct of the too sanguine and. prejudiced 
eft 1A advocates 
