Abstract
PARIS Academy of Sciences, August 27 (C.K., 199, 501-544). Louis BLARINGHEM:—TJhe temperature of flowers. From the results of about 3,000 observations, the author concludes that most plants, at certain stages of growth and especially in the course of the develop ment of the flowers, show a regular excess of tem perature of the internal tissues and of the floral organs over the temperature of the surrounding air. This excess is usually lp-6° but in one case amounted to 9°. EMILE MATHIAS:—Blue globular lightning. HANS SCHWERDTFEGER: The characteristic roots of the matrices of linear forms. Y. WHY FSCHEN: Remark concerning the solution of the mixed problem relating to the equation Aul/co2w = 0 for cooo. ROLF NEVANLINNA:—The harmonic measure ment of ensembles of points. EDGAR ODELL LOVETT:—Bertrand's problem for certain curves which generalise conies. CHARLES PLATRIER:—The most general infinitely small isothermal transforma tion of the homogeneous material medium. MIROSLAV NENADOVITCH: Contribution to the theory of supporting wings. PIERRE LEJAY: Gravity anomalies in the south of Indo-China. A map is given showing the anomalies. ALBERT PERARD and MIROSLAV ROMANOWSKI: New comparisons of national standards of electrical resistance. Com parison of the standard ohms of Germany, United States, France, Great Britain, Japan and Russia, showing secular changes between December 1932 and November 1933. PAUL JANET: Remarks on the preceding note. It is pointed out that this is the first work done by the Bureau international des Poids et Mesures in the field of electrical units. ARCADIUS PIEKARA: The magnetic anisotropy of the fatty acids. PIERRE BRICOUT and ROBERT SALOMON: The use of the cathode ray oscillograph for the study of the magnetisation of ferromagnetic substances. The apparatus described showed differ ences between specimens of identical composition when the annealing temperatures differed by only 10° G. It has proved capable of showing when the time of annealing has been sufficient to bring about the steady magnetic state. CHARLES COURTOT and ABBAS MOTAMEDI: Introduction to the study of the chemistry of diphenylene selenide. PAUL SELTZER: The vertical distribution of temperature in a forest. JACQUES EMILE ABELOUS and RENE ARGAUD: The formation of adrenaline in the supra renal capsule. The role of lipids and lipoids in adrenalogenesis. MARC ANDRE: An American cray fish multiplying near Paris. MAURICE DOLADILHE: Researches on the complementary power of blood sera. MLLE. MATHILDE ZIRNHELT: A new culture medium specially favourable to the development and maintenance of the virulence of B. typhi murium. Sterilised rye, impregnated with oMinary peptone broth, forms an excellent medium for the culture of this organism. The virulence is increased and the rye can be directly used for the destruction of rats.
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Societies and Academies. Nature 134, 582–583 (1934). https://doi.org/10.1038/134582a0
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DOI: https://doi.org/10.1038/134582a0