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14
and water with vaccine lymph, and it has
been proved microscopically that such admixture
has the effect of destroying pathogenic
and other micro-organisms existing therein;
it is, therefore, impossible that hereditary,
specific, or indeed any form of disease can
be conveyed by means of vaccination to the
system of an infant through the medium of
lymph so prepared.
There is nothing very new in the practice of
diluting animal or human virus by adding
water or glycerine, or both combined, in times
of Small-pox epidemics or when sufficient
lymph per se could not be obtained from arm
to arm, should that method of operating be
required, but it has been reserved to the more
exact processes of modern investigation to
shew, upon bacteriological grounds, that a far
more significant and beneficial advantage is
obtained from glycerinated lymph than the
mere increase of bulk of the inoculating
material.
Science has thus once again come to the aid