Electro-therapeutics, or, Electricity in its relation to medicine and surgery.

  • King, William Harvey, 1861-1942.
Date:
[1889], [©1889]
Catalogue details

Licence: Public Domain Mark

Credit: Electro-therapeutics, or, Electricity in its relation to medicine and 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.

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    In my office work I use the form of switch-board, current selector, etc., as shown in Fig. 8. This switch-board is design- ed for economy of space in office and for convenience as well. The current selector is universal, and by it any number of cells from any part of the series may be brought into the circuit. Fig. 8. The selecting lever slides over pins, instead of the buttons used in most switch batteries. The socket, (shown on pin in the figure) is removable, and the lever always being kept in advance of the socket, the pole changer (P) always points toward the positive pole; but, should the socket be placed in