Abstract
PARIS. Academy of Sciences, September 26.—M. Bouchard in the chair.—The president announced the death of Mme. Pasteur.—M. Darboux presented vol. xiv. of the Travaux et Mémoires du Bureau international, containing a full account of the measurements of the exact volume of the kilogram of water. Three different methods have been employed, and the mean of the closely concordant results gives 1.000027 cubic decimetres as the volume of the kilogram of water at 4° C. and under normal atmospheric pressure.—A. Laveran: The treatment of different trypanosomiases by arsenic and antimony emetic. The compound used was obtained in large crystals by crystallising together under certain conditions aniline-arsenyl-tartrate and aniline-antimonyl-tartrate. Details of the methods and dosage are given. Fifteen guinea-pigs infected with T. evansi, T. gambiense, T. dimorphon, or by T. congolense were cured. In four of these cases there was a relapse, which was cured by a second treatment. The possibilities of application to the human subject are discussed.—R. Bourgeois: The comparison of two astronomical pendulums with the aid of electrical signals transmitted by a submarine cable of great length. A Thomson siphon recorder was modified in a manner to suit this work. The method will be used to determine the difference of time between Brest and Dakar, a distance of about 4500 kilometres.—A. Demoulin: Ihe families of Lamé composed of surfaces possessing singular points.—Gaston Darboux: Remarks en the preceding communication.—Carl Störmer: The canonical forms of the general equations of motion of a particle in a magnetic field and an electric field superposed. —H. True and C. Flcig: Experimental ocular action of the dust on tarred roads. Dust from tarred roads is shown experimentally to be capable of provoking much more serious eye troubles than dust from untreated roads, and the smaller the lapse of time since the road has been tarred the more serious are the lesions produced. —H. Guillemard and G. Regnier: Observations on animal calorimetry made on Mt. Blanc. Increase of altitude has no sensible effect on the body temperature, but there is a marked increase in the amount of heat evolved by the body as the altitude increases, amounting to more than 30 per cent, between Chamonix and the summit of Mt. Blanc. A discussion of the results leads to the conclusion that protection against the cold is the best way of combating mountain sickness.—Charles Nicolle and E. Conseil: Properties of the serum of convalescents and animals cured of exanthematic typhus. Serum collected from the ninth to the fourteenth day of convalescence has well-marked preventive and curative properties against the disease. The curative effects disappear if the serum is collected later.—Joseph Roussel: The mode of formation of tricalcium phosphate in Algeria and Tunis.
Article PDF
Rights and permissions
About this article
Cite this article
Societies and Academies . Nature 84, 456 (1910). https://doi.org/10.1038/084456a0
Issue Date:
DOI: https://doi.org/10.1038/084456a0