4587. Fluid Extract of Stillingia

4587.      Fluid Extract of Stillingia. Cut fresh root of stillingia, 16 troy ounces, into small pieces; cover with alcohol, and digest for 24 hours. Then transfer to a percolator, and pack it so as to run slowly; add alcohol gradually, returning the first that passes until it runs clear. Reserve the first 12 fluid ounces percolated ; then continue the percolation, with diluted alcohol, until the residuum is nearly exhausted; add 8 ounces white sugar to this dilute percolate, and evaporate by moderate heat to 4 fluid ounces. Add to this the reserved tincture, and 1 fluid drachm oil of caraway, and make 1 pint fluid extract. The dose is from 2 to 5 drops.

4588. Fluid Extract of Yarrow

4588. Fluid Extract of Yarrow. Take of yarrow (the recently dried herb) in coarse powder, 8 ounces; dilute alcohol (2 parts 95 per cent, alcohol and 1 part water), a sufficient quantity. Pour over the powdered herb 4 ounces of the diluted alcohol, and work through with the hands until thoroughly moistened; allow it to stand in a covered jar for 24 hours. Pack closely in a funnel or other displacer and proceed to displace until 24 fluid ounces are obtained, which, if performed with proper care, will exhaust the herb, as tested, by tasting the droppings.

The resulting liquid should be exposed in a shallow dish (in summer to a draught of air under an open window, in winter on a shelf near the top of the room), and allowed to evaporate spontaneously until it measures 16 fluid ounces; 30 or 40 grains bicarbonate of potassa in powder may then be added, which retains the extractive in solution, and clears the liquid without interfering with its properties. The evaporation of this fluid extract may be continued, if desired, with a very gentle heat (in a water-bath) until reduced to the consistence of an ordinary extract. The result in either case, fluid or solid, possesses in a marked degree the sensible and other properties of the herb, each tea-spoonful representing 30 grains of the herb.

4589. Procter's Fluid Extract of Wild

4589. Procter's Fluid Extract of Wild. Cherry Bark. Take of wild cherry bark, 24 ounces; sweet almonds, 3 ounces; and pure granulated sugar, 36 ounces. Macerate the powdered bark in 2 pints of 83 per cent, alcohol for 8 hours, introduce it into a percolator, and pour alcohol on it until 5 pints have passed, observing to regulate the passage of the liquid by a cork or stop-cock. Introduce the tincture into a capsule (or still, if the alcohol is to be regained), and evaporate it to a syrupy consistence; add 1/2 pint water, and again evaporate until all the alcohol is removed. Beat the almonds, without bleaching, into a smooth paste with a little of the water, and then sufficient to make the emulsion measure 11/2 pints, and pour it into a quart bottle, previously containing the solution of the extract of bark; cork it securely and agitate occasionally for 24 hours, so as to give time for the decomposition of the amyg-daline. The mixture is then to be quickly expressed and filtered into a bottle containing the sugar. "Water should be added to the dregs and they again expressed till sufficient liquor is obtained to make the fluid extract measure 3 pints. The proportion of sugar, though less than that in syrup, is sufficient to preserve the preparation, aided by the presence of hydrocyanic acid.