saline ingredients are separately dried by a very gentle heat, then mixed in a dry room with the ginger and essence of lemon, and at once put into bottles.

b. By adding to the ‘acidulated kali,’ noticed at page 929, about 1-16th of its weight of the finest powdered Jamaica ginger (i. e. 12 dr. to each oz.; 1 oz. to each lb.) at the time of mixing the ingredients together. A dessert-spoonful, thrown into a tumbler two thirds filled with cold water, produces an excellent glass of ginger beer.

Powders, Ink. The article usually sold under this name is noticed under Ink. Another formula, which we have adopted with considerable success, is as follows:—Good black ink, 3 pints, lump sugar, 112 oz., and gum Arabic, 12 oz., are put into a clean iron pan, and evaporated by the heat of boiling water, with occasional stirring, to dryness; the dried mass is reduced to powder, and divided into 12 parts, which are enveloped in either tin-foil or glazed paper, and kept dry. One of these papers dissolved in 14 pint of hot water forms that quantity of excellent black ink, without sediment, and which answers well with the copying press.

Powders, Lem′onade. Syn. Lemon sherbet; Limonadum siccum, Pulvis pro liminado, L. Prep. 1. Powdered citric or tartaric acid, 12 gr.; powdered white sugar, 12 oz.; essence of lemon, 1 drop (or a little of the yellow peel of a lemon rubbed off on a piece of sugar); mix. For one glass.

2. White sugar, 4 lbs.; citric or tartaric acid, 112 oz.; essence of lemon, 14 oz.; mix well, and preserve it in a bottle for use. 1 to 2 dessert-spoonfuls make a glass of lemonade. It is also put up in papers containing about 212 dr. each.

3. (Effervescing.)—a. For the blue papers, take of powdered white sugar, 1 lb.; bicarbonate of soda, 14 lb.; essence of lemon, 112 dr.; mix, and divide it between 6 dozen papers. Next divide tartaric or citric acid, 5 oz., between 6 dozen white papers. Or the two may be kept in bulk, in separate bottles.

b. (In one bottle.) As ‘ACIDULATED KALI,’ Some makers slightly increase the quantities of acid and essence of lemon there ordered.

Powders, Orangeade. Syn. Aerated sherbet. Prep. Powdered sugar, 1412 oz.; powdered orange peel, 12 gr.; oil of orange peel, 60 drops; essence of cedrat, 12 drops; bicarbonate of soda, 312 oz.; mix, and put 145 gr. in each blue paper. In the white paper put 32 gr. of tartaric acid (or 30 gr. of citric acid). Or the alkaline and acid powders may be put into separate bottles, with a measure holding the proper proportions of each. The orange peel may be omitted, if necessary.

Powders, Pol′ishing. Prep. 1. (For brass and copper.)—a. From rotten stone, 3 oz.; powdered soap, 1 oz.

b. From rotten stone, 7 oz.; powdered oxalic acid, 1 oz. Both are used with a little water. See Brass paste.