Abstract
PARIS. Academy of Sciences, September 21.—M. Albert Gaudry in-the chair.—Parthenogenesis by carbonic acid ' obtained with eggs after the emission of the polar globules, by M. Yves Delage. It has been shown in previous work by the author that the eggs of the sea urchin are absolutely refractory to the action of carbonic acid. The effect of heat alone, or of srfaking alone, gave also negative results, but moderate shaking at 30° C. in presence of carbonic acid was successful in producing the desired result, segmentation taking place in about 60 per cent, of the eggs.—On the production of sugar in the blood during the passage of the latter through' the lungs, by MM. R. Lépine and Boulud. From the experiments described the authors conclude that, during the passage of the blood through the lungs, there is not only a glycolytic, but also a glycogenic process, hitherto unnoticed.—On monodrome functions and differential equations, by M. Edm. Maillet.—On the properties and constitution of the manganese steels, by M. Le´on Guillet. The metallographic and mechanical tests are in perfect agreement with each other, and show that there is great similarity between nickel and manganese steels.—The diagnosis of biliary calculi by preliminary radiography, by MM. Mauclaire and Infroit.—The germination of orchids; by M. Nöel Bernard.
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Societies and Academies . Nature 68, 544 (1903). https://doi.org/10.1038/068544b0
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DOI: https://doi.org/10.1038/068544b0