Abstract
PARISAcademy of Sciences, September 16.—M. Fizeau in the chair.—The following papers were read: —On the cause of the periodic movements of flowers and leaves, and on heliotropism, by M. P. Bret.—On a new telephonic transmitter, by M. P. Dupont.—Remarks on a new proposal made with regard to the analysis of milk, by M. E. Marchand.—Description of a new apparatus for the transfer of gases from one vessel to another, by M. A. Blanc. The appatatus is constructed with the special view of avoiding any loss of gas on its being transferred over mercury.—Various communications regarding phylloxera, by MM. E. Fortier and Capbladoux.—On the intra-Mercurial planet seen in the United States during the solar eclipse of July 29 last, by Mr. Swift.—On the observations made of the transit of Mercury on May 6, 1878, at the Imperial Observatory of Rio de Janeiro, after the new method, by M. Emm. Liais.—On the form of the integrals of differential equations of the second degree in the neighbourhood of certain critical points.—On the compressibility of gases at high pressures, by M. E. H. Arnagat.—New researches on the physiology of the vesicular epithelium, by MM. P. Cazenove and Ch. Lyon.—Note on the interior temperature of the globe, by Mr. W. Morris.—Note relating to an apparatus named galioscope, by M. A. Boillot. This apparatus is constructed to demonstrate the invariability of the direction of the plane of oscillation of a pendulum.—Note relating to a new thermohydrometer, by Mr. H. Douglas.
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