Simple Chalybeate Water. Water freed from air by boiling 1 pint, sulphate of iron 1/2 gr.

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

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

Bussang, Forges, Provins, and other similar waters, may be imitated by dissolving from 1/2 to 2/3rds of a grain of sulphate of iron, 2 or 3 grs. of carbonate of soda, 1 gr. of sulphate of magnesia, and 1 of chloride of sodium, in a pint of aerated water.

Most d'Or Water. Bicarbonate of soda 70 grs., sulphate of iron 2/3 gr., chloride of sodium 12 grs., sulphate of soda 1/2 gr., chloride of calcium 4 grs., chloride of magnesium

2 grs., aerated water a pint.

Passy Water. Sulphate of iron 2 grs., chloride of sodium

3 grs., carbonate of soda 4 grs., chloride of magnesium 2 grs., aerated water a pint.

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