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Oleoresin of Male Fern

Pack tle heat (in a water-bath) until reduced to closely 2 pounds avoirdupois, male fern, in the consistence of an ordinary extract. The coarse powder in a percolator; displace with result in either case, fluid or solid, possesses 4 imperial pints ether, or until it passes color- in a marked degree the sensible and other proless Let the ether evaporate on a water- perties of the herb, each tea-spoonful reprebath, or recover it by distillation, and pre-senting 30 grains of the herb. serve the oily extract. (Br. Ph.) This prep- 4589. Procter's Fluid Extract of aration by its character decidedly belongs to 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 88 per cent. alcohol for 8 hours, introduce it into a the oleoresins; it has long been known and much used in Europe, under the name of oil of fern, in the treatment of the tapeworm.

It is believed to have all the vermifugal powers of the male fern, and may be given in 1/2 percolator, and pour alcohol on it until 5 fluid drachm doses. (U. S. Dis.) 4586. Fluid Extract of Rhubarb and passage of the liquid by a cork or stop-cock. pints have passed, observing to regulate the Potassa. Grind or coarsely bruise 2 pounds Introduce the tincture into a capsule (or still, avoirdupois best India rhubarb, 1 pound cassia if the alcohol is to be regained), and evapoor cinnamon, and i pound golden seal; mace- rate it to a syrupy consistence; add½ pint rate for 24 hours or more in 1 gallon good water, and again evaporate until all the alco- French brandy; express strongly, and add 1 hol is removed. Beat the almonds, without fluid drachm oil of peppermint previously bleaching. into a smooth paste with a little of dissolved in a little 90 per cent. alcohol. the water, and then sufficient to make the Break up the compressed residue, and per- emulsion measure 14 pints, and pour it into a colate with warm water until exhausted. quart bottle, previously containing the solu- Evaporate this solution to 4 pints, and, while tion of the extract of bark; cork it securely warin (not too hot), dissolve in it 2 pounds and agitate occasionally for 24 hours, so as to bicarbonate of potassa, and 3 pounds refined give time for the decomposition of the amygsugar; evaporate, if necessary , to the quan- daline. The mixture is then to be quickly tity that the first macerated tincture lacks of expressed and filtered into a bottle containing 1½ gallons. Lastly mix the two together. It the sugar. Water should be added to the is used for the same purposes as the compound dregs and they again expressed till sufficient powder of rhubarb, 2 fluid drachms of the extract being equivalent to 1 drachm of the powder. (Am. Dis.) A simple alkaline ex tract of rhubarb is given in No. 4591.