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BLACK-WATER FEVER DUE TO THE CTION OF A SPECIFIC HÆMOLYSIN.

    The resemblance between the action of specific hæmolytic serum and Black-
water Fever is very striking.

    It is easy to understand that in a crudely prepared serum (containing all
the elements of the blood) wherein especially powerful agglutinins existed, the pro-
minence of the erythro-katalytic process might be more accentuated than in
Black-water Fever.

    But though lysæmia is the characteristic feature of Black-water Fever our
observations show that both processes of blood destruction, which seem charac-
teristic of the action of blood destroying toxins acting in different ways, are con-
cerned in Black-water Fever.

    Parasitic, osmotic and chemical actions we have excluded as causes and it
seems to us therefore most probable that Black-water Fever is due to some specific
hæmolysin arising within the body as a result of the conditions we have pictured
in the earlier parts of this memoir.