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PARIS Academy of Sciences, July 22 {CM., 201, 245–308). Louis BLARINGHEM: A new case of unilateral heredity observed on hybrids of sages (Salvia nemorosa X S. Sclarea). STANISLAS GOLAB: The relation between the ideas of measurements of angles and areas in Finsler spaces. ANDRE FOUILLADE: Unicity with a nearly constant factor, in an un-decomposable ensemble, of a function of the ensemble invariant with respect to the transformation associated with a positive, linear functional transformation maintaining unity. JEAN BRAITZEFF: A particular case of the distribution of the singular points of a function defined by a Dirichlet series. MIECISLAS BIERNACKI: Some majorants of the theory of uni-valent functions. PAUL NOAILLON: Sudden expansion in a gas. MIROSLAV NENADOVITCH and MAURICE DENIS: Contribution to the experimental study of the stability of certain biplane cells at large incidences. P. CHEVENARD and X. WACHE: The accelerating effect of a sinusoidal mechanical tension on the changes in a hypertempered iron-nickel-chromium-carbon austenite. The accelerating effect of the sinusoidal pressure on the precipitation of the carbides is very marked. This results in a certain increase in the mechanical resistance when hot; but in some cases leads to fragility, giving rise to breakage without sensible deformation. RAYMOND TREMBLOT: A contrast star photometer. A modification of the Fabry and Buisson photometer without diffusing screens allowing a better utilisation of the light available when the measurements are carried out on point sources of light of very small luminosity. An accuracy of 0.01-0.02 magnitude is possible. ANDRE LEAUTE: The capillary ascent of tars and bitumens. Application of the method previously described to the study of the causes of the changes in a road surface, originally satisfactory but later slippery. MME. LINA GUASTALLA: The oxido-reduction process at the level of a (kaolin) partition interposed in a copper solution, in the course of electrolysis. The factors determining the velocity of its appearance. MARCEL CAU and FELIX ESCLANGON: The coherence of light radiations and the possibility of using interference apparatus as monochromatic light sources. WITOLD BRONIEWSKI and W. LEWANDOWSKI: The influence of sulphur on the properties of copper. Amounts of sulphur varying from 0*0 to 0*7 per cent were added to copper, and measurements made of the changes in electrical conductivity, temperature coefficient of the electrical conductivity, thermo-electric power (against lead), breaking load, elastic limit, elongation before breaking and Brinell hardness. The results are given graphically. ROGER PERROT: The action of nitrosyl chloride on some silver salts. M. TIFFENEAU, P. WEILL, J. GUTMANN and B. TCHOUBAR: Molecular transpositions in the cyclane series. Lengthening and shortening of the rings. CHARLES DUFRAISSE and ANDRE ETIENNE: The dissociable organic oxides. The anthracene structure possesses reversible oxidisability: a dissociable oxide of mesodiphenylanthracene. From the study of the rubenes, the authors have deduced a structure for substances capable of reversible photoxidation, and mesodiphenylanthracene possesses such a structure. This substance has been found to absorb free oxygen, forming a crystallised photo-oxide: it dissociates at 200 ° C. into pure oxygen and the free hydrocarbon. ALBERT F. DE LAPPARENT: The Trias band of Barjols (Provence). JACQUES FROMAGET: The existence of the lower Trias with ocean facies to the south of Luang-Prabang (Laos) and on the palseo-geography of south-eastern Asia at this period. CHARLES PEREZ: Stages in the disappearance of the roots of Peltogaster after the fall of the visceral sac. PIERRE GRASSE and PAUL BONNEVILLE: Non-swarming imagos or achrestogonimes of the Protermitids. MARIUS BACCINO: The thermal adaptation of the nests of mammals during the growth of the young. The temperature of the nest in the case of rabbits falls as the age of the young increases. For each age there is a temperature of maximum growth. ALBERT and PAUL CHAUCHARD and MME. BERTHE CHAUCHARD: The action of nicotine on the preganglion and postganglion sympathetic nerve fibres. FRIEDRICH L. HAHN: The determination of very small quantities of ethyl bromide in biological media. ANDRE KLING, EMILE GELIN and JULES DEMESSE: The possible substitution, for the analysis of various natural plant products or their derivatives, of the determination of total carbon for that of the dry extract. The carbon dioxide obtained on oxidation with chromic and sulphuric acids gives a measure of the dry extract with sufficient approximation and offers a considerable saving in time. EDGAR LEDERER: Echinenone and pentaxanthine: two new carotinoids found in Echinus esculentus. A. BESREDKA, J. MAGAT and P. BESNARD: The vaccination of rabbits against cutaneous epithelioma. EMILE ROUBAUD and MARC TREILLARD: A coccobacillus pathogenic for tsetse flies.
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Societies and Academies. Nature 136, 448–450 (1935). https://doi.org/10.1038/136448a0
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DOI: https://doi.org/10.1038/136448a0