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1 From the Wellcome Bureau of Scientific Research, 183, Euston Road, London, N. W. 1
1. A series of tervalent and quinquevalent organic antimonials has been tested for toxicity, irritancy and trypanocidal activity, and the results assessed by accurate methods.
2. Trypanocidal activity has been determined by two methods, one depending upon the removal of trypanosomes from the peripheral blood, and the other upon the survival times of infected mice. Differences have been observed between the results in the case of phenyl stibonic acid derivatives.
3. The properties investigated are shown to be independent of antimony content, but to have some correlation with one another and with the initial rate of excretion of the antimony.
Submitted on March 2, 1944