PHARMACY.

287

Mistura cretit. Chalk-mixture.—Take of prepared chalk, halfan ounce : relined sugar, three [drachms; gum acacia powdered,half an ounce ; water, one point. Mingle.

Mistura camphoree. Camphorated mixture.—Take of cam-phor, one drachm ; rectified spirit of wine, a little; refined sugar,half an ounce ; distilled water, one pint. Hub the camphor withthe spirit, afterwards with the sugar; add the water gradually, andstrain the mixture. It is given as a stimulant, in the dose of oneounce every second or third hour, in fever accompanied with de-bility,

Alistura moschi. Musk-mixture.—Take of musk, two scru-ples ; powdered gum arabic, refined sugar, of each one drachm ;rose-water, six ounces, lluh the musk with the sugar, then withthe gum, and add the rose-water gradually. The dose is oneounce, or an ounce and a half.

Mistura ammnniaci. Milk of gum ammoniac.—Take of gumammoniac, two drachms; distilled water, half a pint: triturate thegum-resin with the water poured on gradually, until it become anemulsion. It is given as an expectorant in a dose from half anounce to an ounce at a time.

CLASS XVI. Spikitus. Spirits.—Spiritus carui, spirit ofcaraway, Ed. and Loud.—Take of caraway-seeds, half a pound :pour on them nine pounds of diluted alcohol. Macerate in aclosed vessel for two days; then add as much water as is requiredto prevent empyreuma ; and distil over nine pounds.

In the same manner are to be prepared the following spirits,nine pounds being drawn from the quantities afiixed to each.

Spiritus corticis hiuri ciimamomi, cinnamon-spirit, (with onepound) Sp. cin. Loud.

- menlh. piperit. florcnlis, spirit of peppermint' (with

one pound and a half.) Sp. maith. p. Lond.

- uucis myristic. moschut. nutmeg-spirit (with two

ounces.) Spirit, nuc. mosch. Loud.

- Jructus myrti piment. pimento-spirit (with half a

pound.) Sp. piment. Loud.

Spiritus anisi compositus, compound spirit of anise.—Take ofanise and angelica seeds, of each bruised, half a pound; proof spirit,one gallon ; water, sufficient to prevent empyreuma. Distil onegallon.

The following are distilled with pure alcohol:

Spiritus luvcndidee spiem compositus, compound spirit of laven-der, Ed. Sp. tavend. comp. Lond.—'Fake of spirit of lavender(which is prepared with two pounds of lavender-flowers, and eightpounds of alcohol, seven pounds being distilled over in a water-bath) three pounds ; spirit of rosemary, one pound ; cinnamon,pile ounce ; cloves, two drachms ; nutmeg, half an ounce ; redsaumlers wood, three drachms. Macerate for seven days, andstrain.

Spiritus rorismarini officinalis, spirit of rosemary, Ed. Sp.rorism. Lond.—Take of fresh rosemary-tops, two pounds; alcohol,eight pounds. Draw ofl’ seven pounds by distilling in a water-bath.

Alcohol. In the London Ph. the following process is orderedfor its preparation.—'Fake of rectified spirit oi wine, one gallon ;snbearhouate of potass, three pounds. Mix a pound of the sub-carbonate of potass heated to 300° with the rectified spirit, anddigest for twenty-four hours, shaking them now and then. De-cant the spirit, to which put the rest of the subcarbonated potass,heated also to 300°, ami distil from a water-bath. The alcohol isto be kept in a closely stopped, vessel. The specific gravity of al-cohol to distilled water is as 815 to 1000.

CLASS XVII. 'I’lNCTURjK. Tinctures. — Tinctura aloes soco-toriiae, tincture of aloes, Ed. Tinct. aloes, Lond.—'Fake of pow-dered socotorine aloes, half an ounce ; extract of liquorice, anounce and a half; alcohol, four ounces ; water, one pound. Di-gest with a gentle heat for seven days in a closed vessel, frequentlyshaking it (which is to be observed in the preparation of all tine-Cires.) Dose, one ounce, as a cathartic.

J inctura aloes atkereu, ethereal tincture of aloes.—Take ofmyrrh, socotorine aloes, of cadi an ounce and a half; English saffron, one ounce ; spirit of sulphuric atther, one pound. Digesttile myrrh will) the spirit for four days in a closed vessel ; thenadd the aloes and saffron. Again digest for four days ; and when thelaces have subsided pour off the tincture. Dose, one or twodrachms.

1 inctura aloes cum myrrhu, tincture of aloes with mvrrh,

Tinct. Ed. aloes comp. Lond.— r l'ake of powdered myrrh' ’twoounces : alcohol, one pound and a half; water, half a pound.Mix the alcohol with the water, then add the myrrh. Digest forfour days, and now add an ounce and a half of socotorine aloes,and one ounce of English saffron ; again digest for three days, andpour oil'the pure tincture.

Tinctura aviomi repentis, tincture of cardamom, Ed. Tinct.cardamomi, 1 ,ond.—'Fake of cardamom-seeds four ounces; di-luted alcohol, two pounds and a half. Digest for seven days, andstrain through a paper. This is a grateful aromatic. - in the i.on-don Ph. a compound tincture of cardamom is ordered, in whichare introduced caraway, cinnamon, and raisins.

Tinctura aristolochia: serpentariir, tincture of snake-root, Ed.Tinct. serpent. Lond. Take of snake-root, two ounces; cochinealone drachm; diluted alcohol, two pounds and a half. Digest forseven days, and filtre'through paper. Dose, two drachms.

Tinctura assajktidir, tincture of assafmtida, Ed. Tinct assa-ffvtid. Lond.—'lake of assafeetida, four ounces; alcohol, twopounds and a half. Digest for seven days, and strain through pa-per. Dose, one drachm.

Tinctura benzocs composita, compound tincture of benzoin,Ed. Tinct. batz. c. Lond.— Fake ot benzoin, three ounces ; Pe-ruvian balsam, two ounces ; hepatic: aloes, half an ounce ; alcohol,two pounds. Digest for seven days, and strain. This tincture isin vulgar use to recent wounds.

Tinctura cassia, senna■ composita, tincture of senna-, Ed. Tinct.senna', Lond.—Take of senna-leaves, two ounces; jalap-root, oneounce: coriander-seeds, half an ounce; diluted alcohol, threepounds and a half. Digest for seven days, and to the tinctureiiltred through paper add four ounces of refined sugar, Dose, anounce.

Tinctura castorei, tincture of castor, Ed. and Lond.—Take ofRussian castor, an ounce and a half; alcohol, one pound. Digesttor seven days, and strain through paper. In the London Ph.diluted alcohol is employed. Dose, one drachm.

Tinctura cinconu officinalis, tincture of Peruvian bark, Ed.Tinct. cincon. Lond.—Take of Peruvian bark powdered, fourounces; diluted alcohol, two pounds and a half. Digest for sevendays, and filtre through paper. Dose two drachms.

Tinctura calombae, tincture of calumba, Ed. Tinct. calumb.Lond.— l ake of calumba-root, beaten into powder, two ounces;diluted alcohol, two pounds. Digest for seven days, and strain.Dose two or three drachms.

Tinctura convolvuli jalapie, tincture of jalap, Ed. Tinct.jalap. Lond.—Take of jalap in powder, three ounces; dilutedalcohol, fifteen ounces. Digest for seven days, and filtre throughpaper.

Tinctura digitalis purpurea;, tincture of foxglove.—Take ofthe leaves of foxglove dried, an ounce ; diluted alcohol, eightounces. Digest for seven days, and strain through paper. Amost active and useful medicine. Dose, ten grains, gradually in-creased.

Tinctura guaiaci, tincture of guaiac.—Take of guaiac-resin.onepound; alcohol, two pounds and a half. Digest for seven days,and filtre through paper. Dose, two or three drachms,

Tinctura hyoscyami nigri, tincture of black henbane.—Take ofblack henbane-leaves dried, an ounce ; diluted alcohol, eightounces. Digest for seven days, and strain through paper.

Tinctura lauri cinnamomi, tincture of cinnamon, Ed. Tinct.dunum. Lond.—lake ot cinnamon-bark, three ounces ; dilutedalcohol, two pounds and a half. Digest for seven days, and strainthrough paper.

Tinctura mimosa; catechu, tincture of catechu, Ed. Tinct.catechu, Lond.—Take of catechu, three ounces; cinnamon, twoounces ; diluted alcohol, two pounds and a half. Digest for sevendays, and strain through paper. Dose, one drachm. "

Tinctura myrrlnc, tincture of myrrh, Ed. and Lond_Take of

bruised myrrh, three ounces ; alcohol, twenty ounces ; water, tenouuces. Digest fov seven days, and filtre through paper.

Tinctura opii, tincture of opium, Ed. and Lond.—Take ofopium, two ounces: diluted alcohol, two pounds. Digest for sevendays, and filtre through paper. Dose, from fifteen to twenty-livedrops.

Tinctura rhtti palmuti, tincture of rhubarb, Ed. Tinct. rhei.Lond.—Take of the rhubarb-root, three ounces; less cardamoms,half an ounce; diluted alcohol, two pounds and a half. Di-

gest