. Medical electricity; a practical treatise on the applications of electricity to medicine and surgery. w Forms of electrodes used in the various kinds of electrical applications. 1. Laryngeal (Dr. Strawbridges Eustachian 6. Interrupting handle. tube) electrode. 7. For special nerves. 2. Eye electrode. 8. Large sponge electrode. 3. Tongue 9. Uterine and rectal electrode. 4. Ear 10. Urethral electrode. 5. Nasal ELECTRICITY IN LOCAL DISEASES. 247 Fig. 11. Cup-shaped for mouth of womb. 12. Vaginal electrode. 13. Sympathetic nerve electrode. 14. 15, 16. Disks, olives, points, etc. 17. Carbon
. Medical electricity; a practical treatise on the applications of electricity to medicine and surgery. w Forms of electrodes used in the various kinds of electrical applications. 1. Laryngeal (Dr. Strawbridges Eustachian 6. Interrupting handle. tube) electrode. 7. For special nerves. 2. Eye electrode. 8. Large sponge electrode. 3. Tongue 9. Uterine and rectal electrode. 4. Ear 10. Urethral electrode. 5. Nasal ELECTRICITY IN LOCAL DISEASES. 247 Fig. 11. Cup-shaped for mouth of womb. 12. Vaginal electrode. 13. Sympathetic nerve electrode. 14. 15, 16. Disks, olives, points, etc. 17. Carbon electrode. 18. Wire-brush 19. Foot-plate 20 Spinal PART V. ELECTRICITY IN SURGERY. CHAPTER I. ELECTROLYSIS. Definitions.—The term electrolysis signifies the decom-position of substances by the electric current. An electro-lyte is such substance, and is changed into its constituentelements at the points where the current enters and leavesthe solution, whence electrodes, 060;, a way. The elementswhich appear at the positive electrode or pole are electro-negative, and those which appear at the negative electrodeor pole, are electropositive. Two conditions are necessaryto electrolytic decomposition : the substance must be ina liquid state, and it must be a conductor of or compound radicals, freed by the electric cur-rent, do not lose their chemical properties. In the passageof the current from one pole to the other, polarizatio
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