A system of electrotherapeutics as taught by the International correspondence schools, Scranton, Pa.

  • International Correspondence Schools.
Date:
1899-1902
Catalogue details

Licence: Public Domain Mark

Credit: A system of electrotherapeutics as taught by the International correspondence schools, Scranton, Pa. 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.

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    iron and carbon are used as elements, and a solution of ferric chlorid as the electrolyte. The ferric chlorid is decomposed into ferrous chlorid and free chlorin, the latter uniting with Fib 6. the iron element. There is no polarization, as tlu_ erates itself by absorbing oxygen from the air. constant, but of low E. M. F.. about .78 volt. liquid regen- It is very CELLS* WITH A LIQUID DEPOLARIZER. 38. Nitric Acid as a Depolarizer.—Nitric acid (HN03), being rich in oxygen, is largely used as a depolarizing liquid in this class of cells. Its use is objectionable from the fact that, when deprived of a part of its oxygen, it gives off a gas, nitric oxid, which, on combining with the oxygen of air, becomes nitrogen peroxid, a disagreeable and even dangerous corrosive gas ; con- sequently, the best of ventilation is essential where cells with this depolarizer are used. 39. Grove and Bunsen Cells.—The principal cells using this depolarizer are the Grove and the Bunsen cells, and some of