Diary of Societies
1907; Nature Portfolio; Volume: 76; Issue: 1962 Linguagem: Inglês
10.1038/076144a0
ISSN1476-4687
Resumoeasily coagulated than fresh milk by this ferment.-Themeasurement of the mechanical work furnished bv oxen of the Aubrac breed: M.Ringelmann.-Th,; frontal gibbosity in fishes of the genus Ptychochromis : Jacques Pellegrin.-Theduration of the larval life of Eucyphotes : H. Coutiere.-Tneresults furnished by the complete realisation of the physiological conditions which should be satisfied by the respiratory apparatus to permit man staying and working without danger in irrespirable atmospheres : J. Tissot.The conditions necessary are laid down in the following order, from the points of view of mechanics, chemistry, security, and efficiency.-Thework developed during phonation : M. Mat<age.The work is measured by VH, where V is the volume of air which escapes from• the lungs in a given time, and H its pressure.The author was.able to make measurements of these magnitudes in two subjects, one with an artificial larynx, the other with normal vocal cords and with a tracheal cannula.For 'public speaking, the study of breathing is of the first• importance ; more energy is expended in speaking in a low pitch than a high one.-Researcheson the action of waters containing •sulphur compounds in the mercurial treatment : A. Desmoulieres and A. Chatin.It is now well known that syphilitic• patients under mercurial treatment who, are taking"'sulpqurolls waters can tolerate doses of mercury compounds four or five times as great as those permissible without the use of such waters.This tolerance has been usuallv attributed to the precipitation of the mercury as sulphide,• an insoluble form, but according to the ;1uthors' researches this is not the case.The effect is produced by increasing the solvent power of the blood serum with respect to the mercury albuminates.-Contributionto the study of the oscillations of the coast line in the Bav of Callao: P. Berthon.-The volcanoes of the Log.udoro and Campo d'Ozieri, Sardinia: G. Deprat.-Thed&mes of the Coal-measures in French Lorraine: J. Bergeron.
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