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The best practical antiseptic for sanitary purposes is cleanliness; the best disinfectants are heat, bichloride of mercury, sulphate of iron, chloride of zinc, sulphurous acid, chlorine, sunlight, and pure air, and, for yellow fever, cold.

After anointing, you had better wash your hands carefully in water in which a bichloride of mercury tablet has been dissolved—do not use soap and do not put the bichloride in a metal vessel.

Second ditto, including Archer’s collodion process, bichloride of mercury bleaching and intensifying, and gutta-percha transfer process, 1856.

If this fails, give one-twelfth of a grain of bichloride of mercury thrice daily.

Be careful of the bichloride of mercury, because it is a poison.