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Vichy Water (Sulphate of potassa drachms)

Sulphate of potassa, 2 drachms; sulphate of soda, 4 scruples; phosphate of soda, 25 grains; common salt, 6 drachms; bicarbonate of soda, 54 ounces; carbonate of ammonia, 10 grains. Mix. Add water, 1/2 gallon. Let it stand half a day; filter, add 10 gallons water, and charge with gas. water, 1 gallon. Chiefly used for baths.