Simple Chalybeate Water. Water freed from air by boiling, 1 pint; sulphate of iron, 12 gr.

Aerated Chalybeate Water. Sulphate of iron, 1 gr.; carbonate of soda, 4 gr.; water (deprived of air and charged with carbonic-acid gas), a pint. Dr Pereira recommends 10 gr. each of sulphate of iron and bicarbonate of soda to be taken in a bottle of ordinary soda water. This is equivalent to 4 gr. of carbonate of iron.

Brighton Chalybeate. Sulphate of iron, chloride of sodium, chloride of calcium, of each 2 gr.; carbonate of soda, 3 gr.; carbonated water, 1 pint.

Bussang, Forges, Provins, and other similar waters, may be imitated by dissolving from 12 to 23rds of a grain of sulphate of iron, 2 or 3 gr. of carbonate of soda, 1 gr. of sulphate

of magnesia, and 1 of chloride of sodium, in a pint of aerated water.

Mont d’Or Water. Bicarbonate of soda, 70 gr.; sulphate of iron, 23 gr.; chloride of sodium, 12 gr.; sulphate of soda, 12 gr.; chloride of calcium, 4 gr.; chloride of magnesium, 2 gr.; aerated water, a pint.

Passy Water. Sulphate of iron, 2 gr.; chloride of sodium, 3 gr.; carbonate of soda, 4 gr.; chloride of magnesium, 2 gr.; aerated water, a pint.

Pyrmont Water. Sulphate of magnesia, 20 gr.; chloride of magnesium, 4 gr.; chloride of sodium, 2 gr.; bicarbonate of soda, 16 gr.; sulphate of iron, 2 gr.; Carrara water, a pint.

Various Aerated Medicinal Waters not resembling any Natural Spring.

Mialhe’s Aerated Chalybeate Water. Water, a pint; citric acid, 1 dr.; citrate of iron, 15 gr.; dissolve, and add 75 gr. of bicarbonate of soda.