This mixture when heated separates into two layers,
the upper one viscid and forming a sort of "glycerol," the lower
clear. The latter will completely sterilize a thread dipped in a pure
culture of the diphtheria bacillus. Corrosive sublimate was not
examined because in strong enough doses it would be dangerous and in
weaker ones it would be useless.
The facts obtained in regards to the streptococcus of erysipelas are
reported as follows: That both chemical and experimental evidence
teach the extreme ease of a renewed attack of the disease; that it is
possible to kill guinea pigs by an intoxication when they are immune
to an inoculation of the culture in ordinary quantities. And this
latter fact should warn experimenters trying to obtain immunity in man
by the inoculation of non-pathogenic bacteria, because the same
results may be reached.
A new theory in regard to fevers and the relation of micro-organisms
is suggested by Roussy, viz.: That it is a fermentation produced by a
diastase or soluble ferment found in all micro-organisms and cells,
and which they use in attacking and transforming matter, either inside
their substance or without it.
The resemblance of the malaria parasite to that of recurrent fever is
noted in the work of Sacharoff.
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