Where an antiseptic mouth wash is needed, Mr. Sewill prescribes the use
of perchloride of mercury in the following form: One grain of the
perchloride and 1 grain of chloride of ammonium to be dissolved in 1 oz.
of eau de Cologne or tincture of lemons, and a teaspoonful of the
solution to be mixed with two-thirds of a wineglassful of water, making
a proportion of about 1 of perchloride in 5,000 parts.--_Chemist and
Druggist_.
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