Abstract
Abstract In a preceding communication (1) it was shown that certain peptone fractions cause hemolysis and agglutination of different species of red blood cells. The peptones used in the tests were the individual fractions obtained by separation of Witte's peptone and those arising from the peptic digestion of casein. As stated there, corresponding peptone fractions from the two sources, possess similar properties, although in certain instances the reactions obtained differ in degree. The hemolysis produced by the peptones is as follows: Peptone B (Witte) hemolyzes ten species of red blood cells: Human beef, horse, goat, rabbit, guinea-pig, cat, dog, mouse and pig. Peptone B (Casein) hemolyzes ten species of red blood cells: Human, beef, horse, goat, rabbit, guinea-pig, cat, mouse, goose and pig. Peptone A (Witte) hemolyzes ten species of red blood cells: Human beef, horse, goat, sheep, rabbit, guinea-pig, dog, goose and pig. Deuteroalbumose B (Witte) hemolyzes nine species of red blood cells: Human, beef, horse, goat, sheep, rabbit, guinea-pig, cat and goose.
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