Lectures on nervous diseases from the standpoint of cerebral and spinal localization, and the later methods employed in the diagnosis and treatment of these affections . ^ spiral (as well as in the iron core which it invests) and alsoin the secondar^^ helix. These currents are of no therapeutical valuewithout the iron core, as they lack sufficient intensity. If the secondary helix is composed of very fine wire, the currentinduced within it is extremely painful. The number of coils and thethickness of the wire selected for the primary and secondary helixshould he graduated to a proper relation
Lectures on nervous diseases from the standpoint of cerebral and spinal localization, and the later methods employed in the diagnosis and treatment of these affections . ^ spiral (as well as in the iron core which it invests) and alsoin the secondar^^ helix. These currents are of no therapeutical valuewithout the iron core, as they lack sufficient intensity. If the secondary helix is composed of very fine wire, the currentinduced within it is extremely painful. The number of coils and thethickness of the wire selected for the primary and secondary helixshould he graduated to a proper relation to each other and the electro-motive force of the generating cell Fig. 136.—A Static Machine in Use.— The direct spark is here represented as beingdrawn, / e., the patient being charged positively and the electrode being connected with thenegative pole of the machine. No jars are employed in this form of administrationof static electricity. The indirect spark is more commonly employed than the direct,one pole being attached, in this case, to the insulated platform, the other being grounded bya brass chain, and the electrode being grounded by a chain attached to a gas-pipe, a water-faucet, or the like. The term ?? priTnarij current is often used as sjmon^-mous with thegalvanic. It is incorrectly applied l)y some authors to that faradaiccurrent which is induced by the magnetizing and demagnetizing of thesoft-iron core of the helix. Static electricity is derived from friction, A revolving plate, orby preference several plates, of glass may be employed as a electricity is sometimes called frmiklinism. This form of curren
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Keywords: ., bookcentury1800, bookdecade1880, bookidlecturesonne, bookyear1888
