The pharmacopoeia of the Royal College of Physicians of London, M.DCCC.IX

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ed by many practitioners, Who belleve that it unites s dative and tonic poWers, and thus forin a usesul combina

tion.

That the henbane itself is narcotic is abundantly proved, that the fame poWer is also found in iis tincture is also certain, but to produce the fame effecis it requires a much larger dose. In some of the statemenis made to the Collegea different opinion has been given, and twenty-sive drops have been considered as equivalent to tWenty of tincture os optum; it does not produce costiveness or the subsequent confusion ofhead whicli follows the use of opium, and will therefove be, even is iis poWers be weaden os considerable use.

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Τinctura Ialapii, P. L. 1787. P.L. I 45.

All the astringency of Lino is included in this preparation.

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Tinctura Cantharidis, P. L. 178T. Tinctura Cantharidum, P. L. I 745. P.L. 1720.

The colouring matter of the semer preparation is omittedas useless, and that of the fly increased. In order that this preparation may be certain, it is necessary that the insecisinould bo Dein and perfeci; where this has not been attendedio, I have seen very large doses given without any sensibie effeci.

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TINCTURA MYRRHAE

Tinctura Myrrhae, P. L. 1 8T. P. L. 1 45. Tinctura Myrrhae simplex, P. L. I 20.

Tinctura Opii, P. L. 1487.

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Selected common opium is here used instead of the puri- sed optum of the former Pharmacopoeia. A simple tinctureos optum was frst introduced irato the Pharmacopoeia of1787. It is oesy when in a state of dryn s sincient topowder that it is uniform in iis strength, as in iis ordinarystate it contaris an mequat quantity of Water. The strength, and there re the dose, remalias as in the former preparation, but it must always bo recollected in iis use, that the minimor fixtieth part of the fluidrachm is equat to tWo drops, ac- cor ling to the old division by that method.

Tinctura inabarbari, P. L. 1 78 . Tinctura rhabarbari spirituosa, P. L. I 65. Tinctura rhabarbari, P. L. II 20.

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TINCΤURA RHEI COMPOSITA.

Tinctura rhabarbari composita, P. L. I 787.

This menstruum extracis more of the purgative quality of the rhubarb than the former, and the root itself is also in greater proportion ; they are both retained stom the former Pharmacopoeia.

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TINCTURA SCILLAE.

Tinctura scillae, P. L. 1787.

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Tinctura serpentariae, P. L. 1787. P. L. 1745. Tinctura a Serpentariae Virginianae, P. L. 1720.

TINCTURA VALERIANAE.

TINCTURE OF VALERIAN.

Tinctura valerianae, P. L. 178I. Tinctura valerianae simplex, Ρ. L. 1715.

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TINCTU RES. 2IT

AMMONIATED TINCTU RE OF VALERIAN.

Tinctura valerianae ammoniatae, P. L. 1 8I. Tinctura valerianae volatilis, P. L. 1745.

Tinctura Zingiberis, P. L. I 87.

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AETHER SULPHURICUS

SULPHURIC AETHER.

temperature, during the mixture, may noteXCCed Iao'. Immerse the retori vel

cautiousty to a sand bath, previolasty heate lto 2 OOQ, so that the liquor may boil asspeedily as possibie; and let the AEther passover into a tubulated receiver; to the tubulure of which another receiver is applied, and Leptcold by immersion in ice or water. Distilthe liquor untii a heavier part also hegius