Abstract
PARIS Academy of Sciences, February 25 (C.R., 200, 701–792). Louis LUMIERE: Coloured screens for stereoscopic projections. CHARLES CAMICHEL and MAX TEISSIE-SOLIER: The influence of a perturbation of an immersed body, under the Poiseuille condition. PAUL PASCAL and MARCEL PATRY: Introduction to the study of the telluric acids. Description of the effects on dehydration at increasing temperatures of orthotelluric acid. ALEXANDRE MINIATOFF: A property of transformations in space of two complex variables. GEORGES VALIRON: The number of transcendental singularities of the inverse functions of a class of algebroids. PIERRE DIVE: Coronas with constant logarithmic potential and integral relations characteristic of the ellipse. BORIS FUCHS: Limitations for the variation of an angle in the case of a pseudoconformal transformation in space of two complex variables. PETER THULLEN: The second problem of Cousin. Louis FEYLER: The course of the Tafassasset valley to the north of the Grand Erg of the Tenere and the probability of its prolongation, to the south, up to Tchad. J. TILHO: Remarks on the preceding communication. PAUL CHAMBADAL: The refrigeration of water by fractional evaporation. RENE PLANIOL: Currents of positive ions produced in a high vacuum. NY TSI-ZE and TSIEN LING-CHAO: The laws of the evolution of electricity by torsion in quartz. Two formulae have been suggested for the quantity of electricity evolved by torsion in quartz, one by the authors and another by E. P. Tawil. For certain dimensions of hollow cylinders either formula represents the experimental facts fairly well, but with a wider range of ratio of internal and external diameters, the authors' formula appears preferable. IGNACE ZLOTOWSKI: The passage of the current at potentials below the decomposition potential of electrolytes. EMILE THELLIER: An induction apparatus for the measurement of small magnetic moments. The apparatus described is designed to eliminate the errors due to the instability of the zero, to variations in the external magnetic field and to thermo-electric effects in the circuit. It is sufficiently sensitive to measure the magnetisation of rocks and baked clays. BERNARD LYOT: A green monochromatic filter. Combinations of neodymium glass, or a solution of neodymium nitrate, with Schott VG 3 glass. One combination transmits a band at 82 A. PIERRE AUGER: The absorption of the cosmic radiation. A discussion of the published work on this subject. The hypothesis of a single type of primary cosmic rays does not give an explanation of the whole of the experimental facts. JEAN GREVY: The viscosity of very dilute solutions of nitrocellulose in ether alcohol mixture. According to Staudinger, the specific viscosity of a colloidal solution is independent of the solvent. The specific viscosities of very dilute solutions of nitrocellulose in mixtures of ether and alcohol are given, the proportion of alcohol varying from 18 to 90 per cent. Between 20 and 90 per cent of alcohol, the specific viscosity is practically constant: with lower proportions of alcohol, the specific viscosity is lower. JAMES BASSET and MAURICE DODE: The direct synthesis of nitrates at ultra-pressures. The amounts of nitrate obtained by heating baryta, baryta plus potash and lime with mixtures of nitrogen and oxygen at pressures of 3600 kgm. are given for temperatures ranging from 500° C. to 900° C. RENE PERROTTE: The synthesis of ricinic acid (12-ketostearic acid). MARCEL GOD-CHOT, MAX MOUSSERON and ROBERT GRANGER: The dehalogenation of the cyclanic chlorhydrins with shortening of the ring. MAURICE BADOCHE: Researches on the dissociable organic oxides. The photo-oxidation of sodium 1, 1’, S’.triphenylrubene carboxylate. GEORGES RICHARD: Contribution to the study of the a-cblorketones. ANTOINE WILLE-MART: Contribution to the study of the preparation of coloured hydrocarbons of the rubene type. ANDRE WAHL and MARC RINGEISSEN: 2, 2’.Dihydroxy-l, I’.dinaphthyl sulphide. GEORGES DUPONT and WITOLD ZACHAREWICZ: The synthesis of nopinene and 1, S.pinadiene starting with pinene. The oxidation of pinene by selenium dioxide yields the myrtenol already described, nopinene and 1, S.pinadiene. CAMILLE LEFEVRE and CHARLES DESGREZ: Contribution to the study of the aromatic sulphides. The phenol mono- and di-sulphides previously described, as well as their complex mercury compounds, give well-defined stable salts. J. JUNG and M. ROQUES: The petrography of the crystallophyllian strata of the Bas-Limousin. E. CHAPUT: The Eocene of the plateau of Galatie (Central Anatolia). P. LEJAY: Study of the diurnal variation of atmospherics at Shanghai. Three years observations are summarised in monthly curves. PIEKRE DANGEABD: The structure of some quiescent nuclei. ALBERT PITOT: The morphology of the seed of the LeguminoseaG in its relations with systematics. EMILE SAIKLARD and ROGER SAUNIER: The determination of the ash of sugar beets by measuring the electrical conductivity. P. PORTIER and MLLE. A. RAFFY: The action of water with low surface tension on the plumage of aquatic birds. ETIENNE RABATJD and MLLE. MARIE LOUISE VERRIER: The swim bladder and the pneumatic canal. Reply to criticisms of J. Meierhans. EMIL CIONGA: The presence of a-pyrryl-methyl ketone in stabilised officinal valerian. This ketone is regarded as one of the active principles of valerian. EMILE BRUMPT: Paludism in birds. Plasmodium gallinaceum of the domestic fowl. MLLE. NINE CHOUCROUN and MAURICE PELTIER: The ultra-virus of murine leprosy. G. MOURIQUAND, J. ROLLET and M. COURRIERES: The ultra-violet test for A avitaminosis. ETIENNE SERGENT: The action of subcutaneous injections of water against fatal doses of snake poison. In experiments with mice, the specific serum saved 12 out of 30, a serum active against other snakes saved 10 out of 30, whilst physiological water saved 5 out of 30. ALEXANDRE BESREDKA and LUDWIK GROSS: Cuti-vaccination of mice against sarcoma.
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Societies and Academies. Nature 135, 595–596 (1935). https://doi.org/10.1038/135595a0
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DOI: https://doi.org/10.1038/135595a0