The Florida agriculturist. [volume] (DeLand, Fla.) 1878-1911, 1881-10-19
Discovery RivalIng Doctor
Jenner'S.
From the Baltimore Sun.

From the Baltimore Sun,
One of the most imp ortant papers
read at the meeting Of the IDterna>
tional Medical Congress, held in Ions
don, was that OF NJ. PaSteur, the dis
tinguished biologist, Oh certain dls>
coverles of his which will enable ply
slclans to CONVEX! vaccination from
being an isolated and empiric prrcau.
ton INTO wide system OF treatment,
applicable to many kinds OF fever of
both man and ANIMALS. invests
cations have resulted not alone in
preventives Tor tour distinct violent
diseases, but in knowledge OF a
method of preparing a vaccine tor
preventing tevels and many { it not
aiD contagious diseases. M. Pasteur, in
his address as reported 10y the London
Times, gives in detail mis- discoveries
with respect TO two Diseases
chicken cholera and splen.G fever. 1t
will suffice TO trace his method OF
preparing vaccine to prevent the
first. He takes a chicken about to
die Of the cholera and draws from its
VEINS small quantity of blood. Under
the microscope this blood is seen to
be full OF small living creatures,
which for better name, we shall call
microbes the name employed by M.
Pasteur. A drop OF this blood is
placed Ill close glass vessel contain
ing clear strained recently boiled
broth, made from chicken or other
flesh. Great precaution is taken TO
exclude the organic germs floating
i'll the air; in TACT the glass neck OF
the vessel is closed with plug OF
cotton OF Is drawn out In lamp flame
and Theoretically sealed. The glass
vessel, or flask, is kept at tempera>
ture of about 81 degrees Of Fanren-
heit. Its contents at first become
turbid from the growth OF the mirco-
bes nourished by the broth, but at
the end of couple OF days the thick
ness of the broth disappears because
the microbes have ceased TO develop
and have fallen to the bottom OF the
flask, and things will remain III this
condition for months without either
liquid or sediment undergoing any
visible change provided the atmo'
spheric germs are kept excluded
After an interval of a month, the
flask is shaken to mingle its contents,
and drop from it is placed i'll a
second flask, containing fresh broth.
A crop of microbes is produced as
before, followed by the same clearing
OF the liquid and falling OF the sedi>
ment. The interval Of a months
waiting is repeated and drop from
this second flask is employed TO pros
duce microbes in third and SO on
until there has been say a dozen
crops OF microbes raised. AT tie end
OF the process it will be found that
the cultured microbes" to employ
Nj. Pasteur's language, are innocent,
and, when introduced into the veins
OF healthy chicken, fail 10 produce
cholera, as their uncultured ancestors
did, yet, at the same time, they pre-
vent the chicken from catching the
cholera. In word, the cultured
mlcrobe can be used to vacclnate,
and thus protect the farmers chick
ems from one of the worst diseases TO
which fowl flesh is heir.
The rationale of the process is that
the vlgor OF the microbes is exhaust
ed by any considerable period OF sus'
pended animation, a month or less
and when the process is often repeat
ed the enfeebled microbe loses the
/ Yirulence OF his ,,ooanitors ohio