Simple Sulphuretted Waters. Pass sulphuretted hydrogen into cold water (previously deprived of air by boiling, and cooled in a closed vessel), till it ceases to be absorbed.

Aix-la-Chapelle Water. Bicarbonate of soda 12 grs., chloride of sodium 25 grs., chloride of calcium 3 grs., sulphate of soda 8 grs., simple sulphuretted water 2 1/2 oz., water slightly carbonated 17 1/2 oz.

Bareges Water. (Cauterets, Bagneres de Luchon, Eaux Bonnes, St. Sauveur, may be made the same). Crystallized hydrosulphate of soda (see SodAe Hydrosulphas (Sodii Sulphidum Crystallizatum), P. F.), crystallized carbonate of soda, and chloride of sodium, of each 1 1/2 grs., water (freed from air) a pint. A stronger solution for adding to baths is thus made: - Crystallized hydrosulphate of soda, crystallized carbonate of soda, and chloride of sodium, of each 2 oz., water 10 oz.: dissolve. To be added to a common bath at the time of using.

Naples Water. Crystallized carbonate of soda 15 grs., fluid magnesia 1 oz., simple sulphuretted water 2 oz. aerated water 16 oz. Introduce the sulphuretted water into the bottle last.

Harrogate Water. Chloride of sodium 100 grs., chloride of calcium 10 grs., chloride of magnesium 6 grs., bicarbonate of soda 2 grs., water 18 1/2 oz. Dissolve, and add simple sulphuretted water 1 1/2 oz.

Harrogate Salts. See Dr. Duffin's (back).