A text-book of electro-therapeutics and electro-surgery.

  • Butler, John
Date:
1880
Catalogue details

Licence: Public Domain Mark

Credit: A text-book of electro-therapeutics and electro-surgery. Source: Wellcome Collection.

Provider: This material has been provided by the Harvey Cushing/John Hay Whitney Medical Library at Yale University, through the Medical Heritage Library. The original may be consulted at the Harvey Cushing/John Hay Whitney Medical Library at Yale University.

    324/336 (page 318)
    Iii this connection it is well, perhaps, to give the prescriptions for making the exciting fluids for different forms of batteries: C R. Sulphuric acid, fort., . . . ,|j Smee Battery, < Water gx. (^ M. and allow to cool. Grenet, ( Bichromate of Potash, . . sviij. Bunsen, ] Water, Ov. Stohrer, ( Bnlph. acid, fort., .... gviij. M. For cautery purposes this may be made one-fourth stronger. For the DanielFs battery it is merely necessary to fill the outer and inner cell with water, and place in the cell containing the copper element, a much larger amount of crystals of sulphate of copper than the water is capable of dissolving. The action of the battery in a little while sets free sufficient sulphuric acid to act on the zinc. In case the battery is required for immedi- ate use after filling, a few drops of dilute sulphuric acid in the cell containing the zinc, will hasten the commencement of action. The same rule holds good for the Siemens and Halske bat- tery. For the Hill battery, where no porous cell is used, it is best to put into the vessel dry crystals of sulphate of copper, and then pour in the water, or a weak solution of sulphate of zinc, avoiding agitation.