Solutions. In pharmacy, a solution consists of water in which a certain fixed quantity of a soluble substance has been dissolved. (Sec No. 29).

4770. Solution of Acetate of Morphia

4770.     Solution of Acetate of Morphia. Mix 4 drachms acetate of morphia with 15 drops acetic acid, 1 pint distilled water, and 1/2 pint proof spirit. Dose, from 5 to 20 drops.

4771. Solution of Sulphate of Morphia

4771.    Solution of Sulphate of Morphia. Dissolve 1 grain sulphate of morphia in 1 fluid ounce distilled water. Dose, 1 teaspoonful, used in tho same cases as opium

4772. Compound Solution of Alum

4772.    Compound Solution of Alum. Rub together 1 ounce each alum and sulphate of zinc; dissolve in 3 pints boiling water. If necessary, filter. This is detergent and astringent, and is used as a lotion for old ulcers, excoriations etc.; and, largely diluted with water, as an eye-wash and injection.

4773. Solution of Ammonio-Nitrate of Silver

4773.    Solution of Ammonio-Nitrate of Silver. Dissolve 44 grains pure crystallized nitrate of silver in 1 fluid ounce distilled water; add gradually ammonia water until the precipitate at first thrown down is very nearly, but not entirely, redissolved. This solution is used as a test for arsenious acid, in combination with which it forms a yellow precipitate, arsenite of silver.

4774. Solution of Chloride of Barium

4774.     Solution of Chloride of Barium. Dissolve 1 drachm chloride of barium in 1 fluid ounce water, and filter the solution. Dose, 5 drops, gradually increased to 10 or 12 drops, 2 or 3 times a day, for scrofula, scirrhous affections, and worms. Is used externally, largely diluted, as a lotion in scrofulous ophthalmia ; also as a test for sulphuric acid and the soluble sulphates, in contact with which it makes a heavy white precipitate, insoluble in either hydrochloric or nitric acid. It is said to detect the presence of 1/10000 part of! sulphuric acid.

4775. Solution of Diacetate of Lead

4775.    Solution of Diacetate of Lead - sometimes called Extract of Lead. Boil 27 ounces acetate of lead, and 16 ounces finely powdered litharge, in 3 quarts water for 1/2 an hour, constantly stirring; then add sufficient distilled water to make up 3 quarts. If required, filter, and keep in a closed vessel. This solution is almost the same in strength and preparation as the solution of Subacetate of lead of the U. S. Pharmacopoeia.

4776. Goulard's Water or Lotion

4776.     Goulard's Water or Lotion. Mix 11/2 fluid drachms diacetate of lead with 2 fluid drachms proof spirits and 1 pint distilled water. This lotion is sedative, refrigerant, and astringent. This is the dilute solution of diacetate (or Subacetate) of lead.

4777. Donovan's Arsenic and Mercury Solution

4777.    Donovan's Arsenic and Mercury Solution. Triturate 6 grains finely powdered pure arsenic, 1C grains pure mercury, and 501/2 grains pure iodine, with 1/2 fluid drachm alcohol, until dry; then add gradually 8 fluid ounces water, triturating constantly; heat the mixture in a flask until it begins to boil, and, when cold and filtered, add sufficient water to make up to 8 fluid ounces 6 fluid drachms. Dose 10 to 30 drops, 2 or 3 times a day, soon after a meal, for scaly skin diseases.