Abstract
PARIS. Academy of Sciences, September 3.—M. Maurice Lévy in the chair.—Physiological action and therapeutical applications of compressed oxygen, by M. A. Mosso. The author has verified and extended the observations of Haldane upon the simultaneous action of compressed oxygen and carbonic oxide upon various animals. Where at the ordinary pressure of the atmosphere 0.5 per cent. or less of the carbonic oxide is fatal, animals are not poisoned in an atmosphere of oxygen at two atmospheres containing 6 per cent. of the gas. This result is of interest from the physiological point of view as showing that animals may live, without red corpuscles, on the oxygen dissolved in the blood plasma, provided that the amount in solution is sufficiently increased by pressure. The last sign of life, by M. Augustus D. Waller. Living matter responds to an electrical stimulus by a current in the same direction. The same substance, killed by heat, either gives no response or gives a polarisation current in the opposite sense. This method is applied to determine the last sign of life.—On the Laplace equations with quadratic solutions, by M. Tzitzeica.—On singularities of analytical functions, and in particular of functions defined by differential equations, by M. Paul Painleve. The effects of work of certain muscular groups on other groups doing no work, by MM. Kronecker and Cutter. The muscles of the lower limbs exercised in climbing were found to exert an influence upon the biceps of the arm. A moderate amount of work done by one group of muscles appears to have a strengthening effect upon another group not taking part in the action, the effect being probably due to an increase in the circulation of the blood and lymph.—On a perpetual calendar, by M. 1'abbé Salvatore Franco.
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Societies and Academies . Nature 62, 492 (1900). https://doi.org/10.1038/062492b0
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DOI: https://doi.org/10.1038/062492b0