The electro-therapeutic guide, or, A thousand questions asked and answered . it and vice versa with oxygenand the negative. Change thei poles and the ions would, if possible, allreverse their position on the list, metallic mercury, being near the center,would not care much which way it went, but the oxy-chloride of mercury,negatively attracted would be repelled most under the positive ions may be on the same side of the neutral point, and partake of andbe attracted by the same polarity, but would be mutually repellant, andthe weaker would be pushed back, just as two strong men wi
The electro-therapeutic guide, or, A thousand questions asked and answered . it and vice versa with oxygenand the negative. Change thei poles and the ions would, if possible, allreverse their position on the list, metallic mercury, being near the center,would not care much which way it went, but the oxy-chloride of mercury,negatively attracted would be repelled most under the positive ions may be on the same side of the neutral point, and partake of andbe attracted by the same polarity, but would be mutually repellant, andthe weaker would be pushed back, just as two strong men will contend forthe same prize but the stronger will overcome the weaker and keep himawaj from first place. When a difference of potential is established by a direct current ofelectrification sent through a collection of molecules, each atom or corpuscleof any substance that is free to move, deports itself according as the electriccharge it receives is positive or negative. Those atoms of corpuscles witha negative charge will move toward the anode, and those with a positive. ^^^/-•^^*^ i SHORT ct»icuiT CFUL >l I ElECTROi-YtE 1 > loo a3(9(] I00399 (T - I9339O0 11 - »O3930 Q - >3CI33»Q 1 ^ charge, toward the cathode. The direction therefore, which a medicine insolution will travel, whether from anode or cathode, or the reverse, whenthe attempt is made to use it phorically, will depend on its initial charge. Solutions of cocaine, and adrenalin hydrochlorate, aconitine or tinc-ture of aconite, helleborine, mercuric bichloride, mercuric succinide, lith-ium chloride, strychnine nitrate, menthol, thymol, hammemelis and thuja,can when used in contact with the anode, be conveyed into the tissuesby anaphoresis; while sulphur, ichthyol, eosine, calcium, lithium, sod-ium and potassium iodide and bromide, find entrance by way of the cathode. 78 THE EIvECTRO-THERAPEUTlC GUIDE The drugs most used in electric phoresis are the alkaloids and halo-gen salts, the chief ones being cocai
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