Sea Water. Chloride of sodium 4 oz., sulphate of soda 2 oz.. chloride of calcium 1/4 oz., chloride of magnesium 1 oz., iodide of potassium 4 grs., bromide of potassium 2 grs., water a gallon. A common substitute for sea water as a bath is made by dissolving 4 or 5 oz. of common salt in a gallon of water.

The following mixture of dry salts may be kept for the immediate production of a good imitation of sea water. Chloride of sodium (that obtained from evaporating sea water and not recrystallized, in preference) 85 oz., effloresced sulphate of soda 15 oz., dry chloride of calcium 4 oz., dry chloride of magnesium 16 oz., iodide of potassium 2 drs., bromide of potassium 1 gr. Mix, and keep dry. Put 4 or 5 oz. to a gallon of water.

Balaruc Water. Chloride of sodium 1 oz., chloride of calcium 1 oz., chloride of magnesium 1/2 oz., sulphate of soda 3 drs., bicarbonate of soda 2 drs., bromide of potassium 1 gr., water a gallon. Chiefly used for baths.