EXTRACTS.

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Electuary for the Palsy.—Take of powdered mustard-seed, and con>erve of roses, each an ounce; syrup of ginger, enough to make an electvary.—A tea-spoonful of this may be taken three or four times a-day.

Electuary for the Rheumatism.—Take of conserve of roses two ounces;cinnabar of antimony, levigated, an ounce and a half; gum guaiacum, inpowder, an ounce ; syrup of ginger, a sufficient quantity to make anelectuary.—In obstinate rheumatisms, which are not accompanied witha fever, a tea-spoonful of this electuary may be taken twice a-day withconsiderable advantage.

EMULSIONS.

Emulsions, besides their use as medicines, are also proper vehiclesr or certain substances which could not otherwise be conveniently taken:u a liquid form. Thus camphor, triturated with almonds, readily uniteswith water into an emulsion. Pure oils, balsams, resins, and othelsimilar substances, are likewise rendered miscible with water by the in-'ervention of mucilages.

Milk of Almonds, or Common Emulsion—Take of sweet almonds, anounce and a half; refined sugar half an ounce; water, two pints.—Letthe almonds be blanched, and beat up in a marble mortar with the sugar,adding the water by little and little, so as to make an emulsion ; after-wards let it be strained.

Arabic Emulsion—This is made in the same manner as the above,adding to the almonds, while beating, two ounces and a half of themucilage of gum arabic.—Where soft cooling liquors are necessary, theseemulsions may be used as ordinary drink.

Camphorated Emulsion.—Take of camphor, half a drachm; sweetalmonds, half a dozen; white sugar, half an ounce; mint water, eightounces. Grind the camphor and almonds well together in a stone mor-tar, and add by degrees the mint water; then strain the liquor and dis-solve in it the sugar.—In fevers, and other disorders which require theuse of camphor, a table-spoonful of this emulsion may be taken everytwo or three hours.

Oily Emulsion.—Take of soft water, six ounces; compound spirit oJammonia, two drachms; Florence oil, aa ounce: shake them well to-gether, and add of simple syrup half an ounce.—In recent colds andcoughs, this emulsion is generally of service ; but if the cough provesobstinate, it will succeed better when made with the tincture of opiumammoniated of the Edinburgh Dispensatory, instead of the volatilearomatic spirit. A table-spoonful of it may be taken every two or threehours.

EXTRACTS.

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Extracts are prepared by boiling the subject in water, and eva-porating the strained decoction to a due consistence. By this processsome of the more active parts of plants are freed from the useless dis-soluble earthy matter which makes the larger share of their bulk. Water,however, is not the only menstruum used in the preparation of extracts:sometimes it is joined with spirits, and at other times rectified spiritalone is employed for that purpose. Extracts are prepared from a varietyof different drugs, as the bark, gentian, jalap, &c.; but as they require* troublesome and tedious operation, it will l><; more convenient for