A manual of practical medical electricity : the Röntgen rays and Finsen light . iodide - - - i gramme. Glycerine - - - - 5 grammes. Aqua destillata - - - - 20 grammes. In a case of sycosis of the upper lip, which had resisted formore than two years all other treatment—parasiticideointments, scarification, epilation, etc.—he obtained byeighteen sittings, using the solution just mentioned, mostsuccessful results. A case of extensive actinomycosis ofthe face yielded in three weeks to similar treatment {RevuedElectrotherapie, October, 1891). The Rontgen rays orultra-violet light are likely to be o
A manual of practical medical electricity : the Röntgen rays and Finsen light . iodide - - - i gramme. Glycerine - - - - 5 grammes. Aqua destillata - - - - 20 grammes. In a case of sycosis of the upper lip, which had resisted formore than two years all other treatment—parasiticideointments, scarification, epilation, etc.—he obtained byeighteen sittings, using the solution just mentioned, mostsuccessful results. A case of extensive actinomycosis ofthe face yielded in three weeks to similar treatment {RevuedElectrotherapie, October, 1891). The Rontgen rays orultra-violet light are likely to be of service in this direc-tion. CHAPTER VITHE ELECTRIC CAUTERY AND LIGHT The Electric Cautery. The best types of cells and their arrangement for thesepurposes have already been described. Fig. 132 represents Dr. Schechs universal cautery-handle. It is provided with a trigger for opening andclosing the circuit, so as to allow of the instrumentsintroduction when cold. The cautery itself is made of platinum, which, being apoorer conductor than the copper connecting wires, can. Fig. 132.—Dr. Schechs Galvano-Cautery Handle. be brought by the passage of a current of sufficientstrength to the desired temperature. (By Joules law theheating effect of a current depends upon the resistance,multiplied by the square of the currents strength.) Theplatinum should be maintained at a steady red heat bymeans of a German silver wire rheostat (see p. 99); if itbe hotter than this, haemorrhage may follow. The fullresistance of the rheostat should be put into the circuit 20—2 3o8 A Manual of Practical Medical Electricity when the current is first turned on, and then graduallydiminished by manipulation of the sliding contact untilthe right temperature is attained. The incautious passageof too strong a current will fuse and destroy the accumulators are used, a rheostat is indispensable,but in the bichromate of potash cell the current-strengthcan be adjusted by raising or lowering
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