Abstract
PARIS.
Academy of Sciences, October 26.-M. Ed. Perrier in the chair.-G. Bigourdan: Astronomical observations made in France before the foundation of the Academy of Sciences. An outline of the life of Fabri de Peiresc (1580-1637).-H. Le Chatelier and B. Bogitch: The preparation of alkaline nitrates starting with calcium nitrate. The preparation of ammonium nitrate by the interaction of calcium nitrate and ammonium sulphate presents difficulties on the large scale owing to the pasty mass being nearly impossible to filter. After heating under pressure in a closed vessel to 150° C., the calcium sulphate forms larger crystals, and the ammonium nitrate can be readily removed by washing.-Fre*d. Wallerant: Some crystallo-graphic peculiarities of aniline nitrate. This salt is dimorphous, with a well-marked transition point at 97-6° C.-Henryk Arctowski: Variations in the ratios between faculae and sun-spots.-Luc Picart: A criterion for the identification of the minor planets.-Ernest Esclangon: The quasi-periodic integrals of a linear differential equation.-A. Angelesco: Associated polynomials with several variables.-St. Procopiu: Electromotive force due to motion. A study of the electromotive forces set up in a symmetrical cell (metal-electrolyte-metal) by motion of one electrode or of the electrolyte.-A. Guilliermond: Some cytological observations on the mode of formation of anthocyanic pigments in flowers.-G. Riviere and G. Bailhache: Amygdalopersica formonti. An account of some peculiarities in the growth of an almond grafted on to a peach tree.-Th. Guilloz and E. Stock: A compass for the location of metallic fragments in the body.-E. Vasticar: The structure of the auditory cell.-F. d'Herelle: The biological method for the destruction of locusts. Details of an improved method for utilising the Coccobacillus acridiorum for the destruc-of locusts.-E. Aubel and H. Colin: The reaction of the medium and filtration of toxins.
Article PDF
Rights and permissions
About this article
Cite this article
Societies and Academies . Nature 96, 277 (1915). https://doi.org/10.1038/096277a0
Issue Date:
DOI: https://doi.org/10.1038/096277a0