Abstract
PARIS. Academy of Sciences, Aug. 6.—A. Lacroix: The pegmatitoids of volcanic rocks with basalt facies.—S. Winogradsky: The oxidation of cellulose in the soil. The greater part of the work of the disintegration of cellulose in the soil is done by aerobic organisms. A method of culture is described which permits of the direct observation of the changes in the structure of filter paper brought about by the organism under examination.—V. Grignard and J. Dœuvre: Citronellol and rhodinol. The results of a quantitative study of the products of the ozonisation of rhodinol. It is concluded that the rhodinol of Barbier and Bouveault does not exist as a chemical entity in natural essential oils.—O. Borůvka: A class of minimum surf aces plunged in a space of four dimensions with constant curvature.—A. Danjon: The photometric study of the earth shine from the moon.—Pierre Leroux: Study of the influence of the temperature on the absorption of a specimen of tourmaline. The apparatus utilised for the absorption measurements consisted of a photo-electric cell with a quadrant electrometer. For temperatures not exceeding 250° C., the variation of the absorption coefficient as a function of the temperature is linear and reversible.—Minesaburo Akiyama: The condensation of water vapour on the charged atoms of actinium - A.—C. Marie and G. Lejeune: Researches on the electrolytic oxidation of organic substances.—Rangier: The condensations of glycerol. A detailed study of the products obtained by heating glycerol with fused sodium acetate at varying temperatures.—G. Vavon and N. Zaharia: The extractibility of phenols by ether starting with their alkaline solutions. It is usually assumed that a mixture of phenols with other ether soluble substances can be separated by making the mixture alkaline and extracting with ether. This is not the case, since all phenols are partly removed from alkaline solution by ether, the quantity varying with the structure of the phenol.—V. Babet: The crystallophyllian rocks of the Mayombe (French Equatorial Africa).—Henri Termier: The ankaratrites of Central Morocco.—Pierre Lamare: A type of tectonic accident affecting the lower folds of the Pyrenees of the Spanish Pay Basque.—Raymond Furon: Geological observations on the Hodh (Circle of Néma, French Sudan).—Jules Welsch: Contribution to the knowledge of the Jurassic fauna of Poitou. Oxfordian Ammonites to the south of Niort.—M. Collignon: Explosions at a great distance.—Emile F. Terroine and R. Bonnet: The modes of utilisation by the organism of the energy set free by oxidations and the problem of the food value of alcohol. It is concluded that oxidations in living organisms fall into one of two classes: in one class, of which the oxidation of glucose is the type, the energy can be utilised both for mechanical and chemical work; the other class, of which alcohol is the type, can only give rise to heat.—E. Kohn-Abrest and Lupu: The fate of hydrocyanic acid in the blood.
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Societies and Academies. Nature 122, 461–462 (1928). https://doi.org/10.1038/122461a0
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DOI: https://doi.org/10.1038/122461a0