GALVA.—That electricity has proved of great use in the treatment of disease is unquestionable, though it is quite as certain that it has opened a way to quacks and other swindlers of fleecing invalids and others, and in this way it has proved a great enemy to medicine. As regards its uses in medicine, it has given us the electro-cautery, electrolysis, the portable electric light—a most valuable addition to our consulting-rooms—and it has given us the electric currents so much used in the treatment of nervous diseases. No person should start practising on herself with the electric current. Useful as this agent is in some cases, it requires very careful judgment in its use. Each case requires a different strength of current and a different length of time of application from any other. The indiscriminate use of electricity can do great harm. As regards the abuses of electricity—the quack apparatus by which the unsuspecting public is “gulled”—we might occupy the whole volume in discussing it. It requires a large current to pierce the human skin and so have any effect upon the muscles or nerves. An electric current which will light a small incandescent lamp will have not the slightest effect upon a man holding the wires in his hands. The “electropathic belts,” rings, stockings, boots, hats, ties, stays, etc., etc., either produce no electric current at all, or else they give so little electricity that it avails nothing. To take a concrete example:—if it requires a strength of current corresponding to the size of our earth in magnitude to pierce the human skin and be felt by the patient, the strength of current given out by an electric belt would be compared with a grain of sand in magnitude. That is, the current is many thousands of times too weak to be of any good. MINERVA.—There is no safe method by which you can make your eyes glisten. Some foolish actresses put atropine (belladonna) into their eyes to brighten them. Belladonna dilates the pupil widely, thus giving the eyes a very brilliant appearance, but it is an exceedingly injurious thing for several reasons. The drug paralyses the muscles of the eyes which enable us to see near objects. The widely-dilated pupils will not contract in the presence of a bright light. This is exceedingly painful, causing headache and delirium, and the effects upon the eyes of putting belladonna into them last for over a week. Lastly, and most important, atropine is a deadly poison—it is one of the most poisonous drugs known. It is therefore exceedingly unsafe to use. So poisonous is it that some deaths have occurred from dropping one drop of the solution of atropine, _i.e._, one-hundredth of a grain of the drug, into the eyes for cosmetic purposes. Fortunately you would find great difficulty in obtaining the drug, but it is inconceivable to us how you could be sufficiently foolish to wish to use it.