Abstract
PARIS. Academy of Sciences, June 24.—Marcel Brillouin: Movements of the oceans. The Newtonian potential of the ridge in cylindrical co-ordinates.—B. Cabrera and A. Duperier: The paramagnetic properties of the rare earths. Details of measurements of the variations of the magnetisation coefficients of suiphates and oxides of the rare earths between 20°C. and 400°C. The Curie-Weiss law applies to some of the rare metals, but not to all.—F. E. Myard: The correct control of a motor-car.—Bertrand Gambier: Geometrical configuration of right lines or circles.—S. Finikoff: The periodic series of Laplace containing a W congruence.—Pasquale Calapso: Rectilineal congruences on focal surfaces to which correspond lines of curvature.—Georges de Rham: Multiple integrals and Analysis situs.—Maurice Gérey: Hypotheses concerning the solution of problems at the limits of the elliptic type.—J. Delsarte: A fundamental problem of the theory of vortices.—R. Wavre:A desideratum formulated by Tisserand and the theory of planetary figues.—Marcel Chopin: High temperature determinations of the specific heat of nitrogen and carbon dioxide. The method used aims at the nearly complete elimination of the corrections in a calorimetric measurement of the specific heats of gases at high temperatures. For nitrogen,
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Societies and Academies. Nature 124, 215–216 (1929). https://doi.org/10.1038/124215a0
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DOI: https://doi.org/10.1038/124215a0