Abstract
1. By following the method of Osborne, Mendel and Harris, we can obtain an extremely potent toxin from the castor bean. 2. It would appear, as a result of testing this preparation at the end of two and a half years, that the agglutinating function and the toxic function are two distinct properties. 3. This result is also borne out by the behavior under the electric current; either we are dealing with two different substances or else with a single substance with two distinct toxiphore groups, one of which is stable and the other labile.
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