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founuit so successful that I think a few words may
be said about it. A person doing the process may
follow Green's description in the Lancet of June 20th
1903 until the place where he says The Chloroform"
is evaporated till no trace remains, such evaporation
is most/quickly effected by passing a stream of sterile
air through the emulsion." It will be noticed that no
Indication of the time necessary is given and no. test
for the end point. These details may be published elsewhere.
I use the following method and test. When the passage
of Chloroform vapour has been stopped I cause the sterile
air to bubble through not merely briskly but furiously
for 6 hours I then test a little of the vaccine by
heating with a few drops of aniline and caustic potash
solution in a test tube) If there is any difference between
the smell of the tube and the control without vaccine
I go on passing air until the difference dissapears.
I glycerinate the vaccine just after doing the first
test.
Dr Netld Cook, Indian Medical Gazette May 1907, says
ed of his chloroform vaccine "I found it less reliable
than glycerinated and other experimenters have arrived
at the same conclusion". I must say that though my