Published online by Cambridge University Press: 19 February 2018
Medical science on the experimental side has been productive of no more interesting or fruitful results than those which have appeared in connection with the study of hæmolysis. The groundwork of this subject was laid by Bordet (1) in 1900 by the discovery of the fact that an immune serum contains a thermostable substance (immune body), which, in the presence of the original immunising agent (blood-corpuscles or bacteria), is capable of absorbing complement; that is to say, a hæmolytic or bacteriolytic serum heated to 57° C. for an hour will lose its power of lysing the homologous blood or organisms, but it will retain thermostable substances whose activity can be restored by the addition of fresh non-immune serum.
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