Abstract
PARIS. Academy of Sciences, August 31.—M. Bouchard in the chair.—Concerning Trypanosoma congolense: A. Laveran. Details are given of experiments on goats. In one case the animal acquired complete immunity against T. congolense, but this immunity did not extend to infection by T. dimorphon. In the second case, immunity against T. congolense was also attained, and experimental inoculations with T. dimorphon are in progress.—Pfaff's problem: A. J. Stodolkievicz.—Periodic functions: P. Cousin.—The temperature of dissociation of ammonia and carbon monoxide: Herman C. Woltereck. Ammonia, carefully purified from moisture and traces of organic matter, was passed through a Jena glass tube, the temperature of which was controlled by a Le Chatelier pyrometer. The first traces of dissociation were observed at 620° C.; the lower temperatures noted by other investigators are probably due to the presence of traces of impurity. Carbon monoxide commences to dissociate between 570° C. and 580° C.—The white disease of the oak and Erysiphe quercus: M. Boudierv—The action of human serum on Trypanosoma pecaudi. The differentiation of T. pecaudi and T. gambiense: A. Thiroux and L. d'Anfreville. From experiments on apes it is concluded that human serum exerts a preventive and curative effect as regards infection with T. pecaudi, and this effect falls off very slowly.
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Societies and Academies . Nature 78, 472 (1908). https://doi.org/10.1038/078472a0
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DOI: https://doi.org/10.1038/078472a0