An international system of electro-therapeutics : for students, general practitioners, and specialists . of am convincedthat wherever thisbattery is used it willprove itself possessedof undeniable advan-tages OA^er all Ghloride-of-Silver Cell.—Marie Davy appears to have been the first to suggest the use of silver chloride as a depolarizer (about 1860), although it owes its present prominence to the investigations of Warren de la Rue. 1 y \ \ r / y^ / / \ \ 9 / h \ / / / -it J • -Si ?/ / -a ? -i- -J -a - COCO o c z a:< ^ ?3 lij uu t ?~z - ^ 1- ^ c 4 i UJl ! / 3 J r— s /
An international system of electro-therapeutics : for students, general practitioners, and specialists . of am convincedthat wherever thisbattery is used it willprove itself possessedof undeniable advan-tages OA^er all Ghloride-of-Silver Cell.—Marie Davy appears to have been the first to suggest the use of silver chloride as a depolarizer (about 1860), although it owes its present prominence to the investigations of Warren de la Rue. 1 y \ \ r / y^ / / \ \ 9 / h \ / / / -it J • -Si ?/ / -a ? -i- -J -a - COCO o c z a:< ^ ?3 lij uu t ?~z - ^ 1- ^ c 4 i UJl ! / 3 J r— s / ?« / r Z / \ It??/ 1 \ \ X A / \ ^ \ \ 1 s % S 5 ?.snoA ri S H 2 ^i «S3d3dHV 1 i S S 3 «19HH0 --3SSaSSSS35 ii^VM GALVANISM. A-265 The elements are zinc and the silver chloride, the latter of which isreadily reduced to metallic silver by nascent hydrogen. The excitingfluid of De la Rues battery is ammonium chloride, and contains 23grammes to 1 litre of distilled water. The initial electro-motive force of a silver-chloride cell is about 1 2 3MINUTES 8 19 20 volts. Its internal resistance falls rapidly upon first closing the circuit, on account of the reduced silver. It polarizes but slightly, and recovers promptly. It is employed chiefly for testing purposes. It is now much used by physicians. The Gaiffe and other chloride-of-silver batteries are very extensively used for induction coils, or to furnish continuous currents for medicinal purposes. This is a small cell, hermetically closed in ebonite boxes having screw-tops. This battery is transportable, and has no free liquid, the two electrodes being separated by six or eight sheets of blotting-paper saturated with a solution containing 5 per cent, of chloride of zinc. Gaiffe formerly employed powdered chloride of silver, but he now seems to prefer the melted silver. There are also other forms of this battery on the market. Among other varieties of the closed-circuit batteries may be mentioned the Gethius, Delanys m
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectuterus, bookyear1894
