Societies and Academies

Abstract

PARIS. Academy of Sciences, August 9.—M. A. Chatin in the chair.—The Perpetual Secretary announced to the Academy the loss it had sustained by the death of M. Tholozan, Correspondant in the Section of Medicine and Surgery. He also announced the sudden death of Prof. Victor Meyer at Heidelberg.—On the number and symmetry of the ligneous bundles of the appendices (leaves) in their relation to organic perfection, by M. Ad. Chatin. A classification is given according to the number of bundles in the petiole.—On the crystalline form of the chloroplatinates of the diamines, by M. J. A. Le Bel. Measurements are given of the axial ratios for a large number of chloroplatinates of amines of the type NH.R₁R₂, where R₁ and R₂ may be any pair of the methyl, ethyl, normal or isopropyl, normal butyl, or amyl groups.—On some ketonic ethers, by M. A. Collet.