Chap. XLI,

Of Liniments, c§r.

651

Emplastrum galbani compositum. Lond.Compound Plaster of Galbanum.

Take of

Strained galbanum, eight ounces ;Plaster of lead, three pounds ;Turpentine, ten drachms;Frankincense, in powder, three ounces.

With the galbanum and turpentine melted together, mix firstthe frankincense, and afterwards the litharge plaster, melt-ed also with a very slow fire, and make a plaster.

All these plasters are used as digestives and suppuratives;particularly in abscesses, after a part of the matter has beenmaturated and discharged, for suppurating or discussing theinduration which remains.

B

Emplastrum opii. Lond.Plaster of Opium.

Take of

Hard opium, in powder, half an ounce;

Frankincense, in powder, three ounces j

Lead plaster, one pound.Add the opium and frankincense to the melted plaster, and

mix.

Opium plaster is applied in rheumatisms and other localpains, and is supposed to act by absorption.

Ceratum saponis. Lond.Soap Cerate.

Take of

Hard soap, eight ounces ;

Yellow wax, ten ounces ;

Semi-vitrified oxide of lead, powdered, one pound ;

Olive oil, one pint;

Vinegar, one gallon.

Boil the vinegar with the oxide of lead, over a slow fire, con-stantly stirring, until they unite; then add the soap, andrepeat the boiling in the same manner, until the moisturebe entirely evaporated ; and, lastly, mix with them the waxpreviously melted in the oil.

This acts in reality as a saturnine application, the soaphaving only the effect of giving a very convenient degree ofadhesiveness.

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