. Electro-therapeutics and X-rays . repelling the like kind to thedistal end. Rheophores are wires or conducting cords connecting theelectrodes with the battery. Conducting cords should beproperly insulated. The insulation is for the purpose of pre-venting the two conducting cords coming together and thusmaking a short circuit, by which the current would suddenlybe taken from the patient, and this with no little shock andpain if the application was made to a sensitive part; a similarshock would result upon the disengagement of the connections of connecting cords and electrodes produ
. Electro-therapeutics and X-rays . repelling the like kind to thedistal end. Rheophores are wires or conducting cords connecting theelectrodes with the battery. Conducting cords should beproperly insulated. The insulation is for the purpose of pre-venting the two conducting cords coming together and thusmaking a short circuit, by which the current would suddenlybe taken from the patient, and this with no little shock andpain if the application was made to a sensitive part; a similarshock would result upon the disengagement of the connections of connecting cords and electrodes producefrequent shocks by breaking the current. A rheostat, or current-controller, is a contrivance for regu-lating the amount of flow of electricity. By its use thewhole or any number of cells from the series may be used atonce. The current can be regulated with perfect certainty, DEFINITIONS OF ELECTRICAL TERMS. 31 and can be increased or diminished very gradually with abso-lutely no chance of producing shocks. In all delicate opera-. Fig. 2.—A Diagram Showing Under Side of Switch-board andMethod of Making Cell Connections. (The Electro-Therapeutist.)Connecting the Cells: Place the cells in a cabinet, or on shelves, as desired,then connect zinc of first cell by means of a short wire, with the carbon ofnext, and so on until all are connected; that is, zinc to carbon; zinc tocarbon; zinc to carbon, and so on until all are connected in continuouschain. Do not connect zinc of last cell to carbon of first. Connecting theCells to the Switch-board: Connect wire No. o, to carbon of first cell, wireNo. I, to zinc of first cell, and continue till all are connected. Then therewill be two wires fastened to zincs of all cells but the last. Any number ofcells can be used with this circle by skipping cells with the wires to buttons,thus putting 2, 3, or 5 cells to a button if desired. When connected thus theo wire will be positive, and 1, 2, 3, etc., will be negative. It will be remem-bered th
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