Abstract
PARIS. Academy of Sciences, August 29.—M. Armand Gautier in the chair.—Joannes Chatin: The posterior sclerotic ring in birds.—M. Gonnessiat: Observation of the Arrest comet at the Observatory of Algiers. This comet was detected at Algiers on August 26, appearing as a feeble nebulosity with a slight central condensation of the fourteenth magnitude.—M. Baillaud: Remarks on the above. This comet has a period of six years eight months, and was not Seen in 1904. Its position coincided with the calculations of M. Leveau, the difference between the calculated and observed positions being less than the ordinary field of a telescope.—Kotaro Honda: The law of variation of the coefficient of specific magnetisation of the elements by heating. Instead of the two laws of Curie, the author proposes the following: the effect of a rise of temperature on the magnetisation coefficient of an element is similar to that of a small increase of the atomic weight of the element. The experimental data in support of this are given.—G. D. Hini-ichs: The atomic weights of precision of oxygen and silver.—M. Busigrnies: Some ethylenic cyclic derivatives (ether oxides) and their bromine derivatives. The alkyloxybenzophenones are treated with magnesium alkyl iodides, and give alkyloxydiphenyl-ethylene and its homologues. The bromine addition compounds of these have also been prepared.—E. Voisenet: New researches on bitter wines and the acrylic fermentation of glycerol. Determinations of the amounts of acrolein in various wines showed that the bitterness increased with the amount of acrolein present.—Z. Skrzynski: Contribution to the study of mycosic sero-diagnosis.
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Societies and Academies . Nature 84, 324 (1910). https://doi.org/10.1038/084324a0
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DOI: https://doi.org/10.1038/084324a0