Chap. XVII. Of Inspissated Juices,

481

Succus spissatus cicut.e. Dub,Inspissated Juice of Hemlock.Express the leaves of hemlock, gathered when the flowers arejust appearing, and allow the juice to stand six hours, untilthe fasces subside; then reduce the decanted juice to thethickness of an extract, with a moderate heat.

i

In this manner prepare

SUCCUS SPISSATUS

AtroPjE belladon^e. Ed.

ACONITI NAPELLT. Ed.CONII MACULATI. Ed.

CiclTjE Dub.Hyosciami NIGRI. Ed.Hyosciami. Dub.Lactucje viros.*;. Ed.Sambuci. Dub.

I

The inspissated juice ofDeadly Nightshade, from the

leaves.Wolfsbane, from the leaves.Hemlock, from the leaves, whenit is about to flower.

Henbane, from the leaves.

Poisonous lettuce, from the leaves,Elder Berries.

Extractum ACONm. Lond.Extract of Monkshood.Take of

Monkshood leaves, fresh, one pound.Bruise them in a stone mortar, sprinkling a little water uponthem: then express the juice, and evaporate it without se-parating the sediment, to a proper thickness.

In the same manner are prepared,

Extractum belladonjE. Lond.Extract of Bittersweet.

Extractum conii. Lond.

Extract of Hemlock.

Extractum hyosciami. Lond.Extract of Henbane.

These are not properly extracts, but inspissated juices.It is, however, necessary to observe, that the mode of prepa-ration directed by the London college differs from that ofthe others, in not separating the feculent matter which al-ways is deposited from expressed juices, before they are eva-porated. What the effect of this feculum is upon the vir-tues, consistency, or durability, of the inspissated juices, isnot well ascertained.

2 h '