402. SELTZER WATER.
Take of water any quantity. Impregnate it with about ten times its volume of carbonic acid gas, by means of a forcing pump.
403. LIQUID MAGNESIA.
Take of water 1 gallon,
carbonate of magnesia, 3 drachms, and
impregnate it as above.
404. POTASS WATER.
Take one ounce of subcarbonate of potass, and impregnate as above.
405. SODA WATER.
Take 2 ounces of subcarbonate of soda, and impregnate as above.
406. PORTABLE LEMONADE.
Take of tartaric acid, ½ oz.
loaf sugar, 3 oz.
essence of lemon, ½ drachm.