The pharmacopoeia of the Royal College of Physicians of London, MDCCCIX

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PILULAE HYDRARGYRI SUBMURIATIS.

Rub the Submuriate of Mercury si si Withthe precipitat est Sulphuret of Antimony, then mitti the Guaiacum Gum resin, and addus much Copaiba as may be requisite to give

These directions are introduced, because the subject of them is in very generat use as an alterative Pili. The combination was first recommended by Dr. Plummer in the Edinburgii Medicat Essays.

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Beat them together, untii they are thoroughly incorpora ted.

This is substituted sor the former Pilulae opii, in whichopium Was mixed with the fame proportion of extraci os liquorice. That composition, is long Eepi, greW hard, and pilis made of it have been very osten found to pass the intestinat canal undissolved. Soap, there re, to which the fame objection does not apply, has been substituted for the Extracts as Was formerly done in the Pharmacopoeia os II 5, under the name of Pilulae Saponaceae. In that formula, too, the iaste of the soap was covered by the addition of essentialoil of lemon, Which has not now been thought neceSSary.

PILULAE SCILLAE COMPOSITAE.

Pilulae Scillae, P. L. I 78 I.

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PILI S

These diTer only in name frona the former squill pilla, and the propriety of that alteration is evident froin the wbstances which enter into their composition. Perhaps theammoniae might have been increased in iis proportiou, to amore essicient dose.

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PRAEPARATA EX ANIMALIBUS.

Adeps suilla praeparata, P. L. I 87. Axungia porcina curarata, P. L. 1 Φ5.

Cur the lard into pleces; meli it theri overa gloW sire, and press it through a linen cloth.

Is mater be used in this purification os lard, or that offuet, thev become rancid much sooner.

CORNU USTUM.

Cornu cervi ustum, P. L. I 787. Cornu cervi calcinatum, P. L. 1745. Cornu cervinum ustum, P. L. I 72O.

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ANIMAL SUBSTANCES. 213der them, and prepare them in the mannei directed sor the preparation os challi.

Hartshorn is too expensive an animal bone to be emplo'ed for the common preparations of Ammonia, for Whichpurpose the bones, Whicli are the refuse of the streeis, areusod; and is aster distillation thev be further burni in anopen fre, the residue in each instance Will be the fame, anuchiefly phosphato os time. Hartshorn, hoWever, affordsthat particular modification os bone to Whicli the preferenceis gi ven for the purposes of pharmacy, and the consumptionis not so great as to vender the direction either too expensive or dissiculi to be complied with. The phosphate oflimo test amounts to 57,5 of the bones employed; thes ap- Pear also to contain a finali quantity of carbonate os lime and phosphate of magnesia, and the remainder is animal matter, whicli passes away in various compound gasses under thecircumstances in Whicli it is in this preparation directed tobe placed.

SEVUM PRAEPARATUM.

PREPARED SUET.

Sevum ovillum praeparatum, P. L. t 787. Sevum ovillum Curatum, P. L. t 745.

Cui tho su et into pie es : then meli it overa sto sire, and press it through a linen cloth.

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Spongia usta, P. L. I 87. P. L. II15.

Cui the sponge into picces, and beat itiliat any extraneolas adherent matterS maybe separa ted: thon burn it in a close ironvcsset untii it hecoines hi ach and friable: lastly rub it to a very sane POWdCr.

Burni sponge appears practicatly to produce essects whichno mixture of the athali and charcoal does, especialty in theremovat of bronchocele; and it is therelare retained.

TESIVE PRAEPARATAE.

Testae ostreorum praeparatae, P. L. II 87. P.L. II15.

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and red coral, Whicli possess no superiority Whatever, beingomitted. They have an advantage over the minerat carti Nates of lime, especialty chath, in being purer. Withthe other carbonates, the communds of them, as the Pulvis Chelarum cancri compositus, Which was formerly celebratedunder the name of Gascoign's PoWder, are also omitted, and the orater sitelis are considered as equivalent to the whole.

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TMPLASTRA.

EMPLASTRUM AMMONIACI.

Dissolve the ammoniacum in the acid, theu evaporate the liquor in an iron vessel

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PLASTERS. by means of a Water bath, constantly Stiri ingit untii it acquires a proper ConSi Sten CC.

EMPLASTRUM AMMONIACI CUM HYDRARGYRO.

Emplastrum ammoniaci cum hydrargyro, P. L. t 787. plaStrum ex ammoniaco cum mercurio, P. L. t 745.

Sulphura ted Oil, a fluidi achm. Rub the mercury With the sulphura ted olluntii the globules dis pelir: then adii by

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EMPLASTRUM CERAE.

plastrum cerae, P. L. I 87 plastrum attrahens, P. L. II 45. Emplastrum de meliloto simplex, P. L. 172O.

riters are inmetimes dressed with this plaster sor thepar se os promoting a discharge

EMPLASTRUM CUM INI.

Tmplastrum cumini, P. L. 17SI. Emplastrum e cymino, P. L. 1745. P. L. II2O.