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EXTEACTS.

EXTHACTUM Ol'II.

Take of Opium, one pound ;

Water, five pints ;Cut the opium into small fragments, ma-cerate it for twenty-four hours in a pint ofwater, break down the fragments with thehand, express the liquid with pretty strongpressure ; break down the residuum againin another pint of the water, let it maceratefor twenty-four hours, and express the li-quid ; repeat the maceration and expressionin the same way tili the water is all used.Filter the successive infusions as they aremade, passing them through the same filter;unite and evaporate them in the vapour-bath to the due consistence.

EXTRACTUM PAPAVERIS.

Take of Poppy-heads without the seeds, fif-teen ounces ;Boiling water, a gallon ;Macerate for twenty-four hours ; boil downto four pints ; filter the liquor hot, and eva-porate over the vapour-bath to the due con-sistence.

EXTRACTUM PAREIRJ3.

This extract is to be prepared from Pareira-root in the same way with the extract ofLiquorice-root.