4. From PALE BARK:—(Liquor cinchonæ pallidæ; Infusum cinchonæ spissatum—Ph. L.) From pale bark, as the last. See Infusion of Cinchona.

Liquor, Disinfect′ing. See Solution (Chlorides of Lime, Soda, and Zinc), and Disinfecting compounds.

Liquor of Er′got. Syn. Essence of ergot of rye, Concentrated infusion of e.; Essentia secalis cornuti, Liquor ergotæ, Infusum ergotæ concentratum, L. Prep. Recent ergot of rye (reduced to coarse powder by pounding, or preferably by grinding it in a pepper-mill), 112 lb., and boiling distilled water, 4 lbs., are digested together in a closed vessel, with frequent agitation until cold, and then put into a wide-mouthed bottle, along with rectified spirit, 2 lbs.; the whole is then allowed to macerate for a week, after which the liquor is expressed and filtered. Obs. 4 fl. dr. of this essence are equal to 1 dr. of ergot in substance. It is 8 times the strength of the INFUSION (as usually prepared according to the formula of Pereira and others), and 212 times the strength of the TINCTURE OF ERGOT of the London Apothecaries’ Hall. This is the only ESSENCE OF LIQUOR OF ERGOT known in the wholesale trade.

Liquor of Flints. See Solution.

Liquor of Gutta Percha. B. Syn. Liquor Gutta percha. Gutta percha in thin slices, 1 oz.; carbonate of lead in fine powder, 1 oz.; chloroform, 8 fl. oz. Add the gutta percha to 6 fl. oz. of chloroform in a stoppered bottle, and shake them frequently till solution has been effected. Then add the carbonate of lead previously mixed with the remainder of the chloroform, and having several times shaken the whole together set the mixture aside, and let it remain at rest until the soluble matter has subsided. Lastly, decant the clear liquid and keep in a well-stoppered bottle.

Liquor, Libavius’s. Bichloride of tin.

Liquor of Mat′ico. Syn. Concentrated infusion of matico; Liquor maticonis, Infusum maticonis concentratum, L. Prep. From matico leaves, 1 lb.; rectified spirit, 12 pint; distilled water, 32 fl. oz.; digest 10 days, express, and filter. 1 fl. dr. added to 7 fl. dr. of water is equal to 1 fl. oz. of the common INFUSION.

Liquor of Myrrh. Syn. Solution of myrrh; Liquor myrrhæ, Loco liquaminis myrrhæ,

L. Prep. (Ph. Bor.) Extract of myrrh (Ph. Bor.), 1 oz.; distilled water, 5 fl. oz.; mix thoroughly, decant, and strain. It should be of a brownish-yellow colour, and turbid.—Dose, 12 to 1 fl. dr.

Liquor of O′pium. Syn. Liquor opii, L. o. concentratus, L. opiatus, L. See Black drop.[20]