Abstract
PARIS. Academy of Sciences, August 23.—M. Bouquet de la Grye in the chair.—The calculation of the roots of numerical equations: M. Lemeray. Referring to a recent paper by M. de Montessus on this subject, the author points out that he published a method on the same principle in December, 1898.—Movements from the vertical due to the attraction of the moon and sun, the earth being supposed absolutely rigid: Ch. Lallemand.—A poison elaborated by yeast: A. Fernbach. It has been recently shown by F. Hayduck that there exists in the yeast cell a substance which is toxic to yeast. The present paper contains some new observations on the same subject. A solution of the toxic substance is shown, not only to be antiseptic to yeast cells, but also to bacteria such as B. coli and Staphylococcus, although it has no effect on moulds. The most remarkable property of this substance is that it is volatile under reduced pressure at a temperature not above 40° C. The distillate contains no formaldehyde; fiuther researches on the nature of this substance are in progress.—The development of the eggs of Philine aperta exposed to the action of radium: Jan Tur.
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Societies and Academies . Nature 81, 300 (1909). https://doi.org/10.1038/081300a0
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DOI: https://doi.org/10.1038/081300a0