2. (Extractum lupulinæ coctione paratum.) From the decoction. Both similar to extract of hops, but stronger. The first is the most aromatic; the last the most bitter.

Extract of Mad′der. Syn. Extractum rubiæ. L. Prep. (Ph. Hamb.) From the tincture of dyer’s madder (Rubia tinctorum), made with rectified spirit, 1 part, and water, 3 parts.—Dose, 10 gr. to 30 gr.; as a diuretic, emmenagogue, and parturifacient; and in jaundice, &c.

Extract of Mahog′any. Syn. Extractum swieteniæ, L. From the chips and sawdust of mahogany (Swietenia Mahogoni). It is astringent, and is frequently sold for kino. It is also employed in tanning.

Extract of Male Fern. Syn. Alcoholic extract of male fern; Extractum filicis, B. P. Prep. 1. (Dr Ebers.) From the tincture of the dried root of male fern (Lastræa Filix-mas), made with rectified spirit. In tape-worm.—Dose, 20 gr. to 12 dr., twice a day, made into an electuary with powdered sugar, and followed by a strong dose of castor oil.

2. (Ethereal.) B. P. (Extractum filicis liquidum.) Fern root, in coarse powder, 1; ether, 212, or a sufficiency. Pack closely in a percolator with 1 of the ether, add the rest at intervals, until it passes through colourless, distil off the ether, and the liquid extract remains.—Dose, 30 to 60 minims. See Oil of Male Fern.

Extract of Malt. Syn. Extractum malti, E. Bynes, L. Prep. 1. From the infusion made with water at a temperature ranging between 160° and 170° Fahr., drained off, without pressure, and evaporated to the consistence of honey. Nutritious and laxative.—Dose. A table-spoonful, or more, ad libitum.

2. Extract of malt, ferrated. (Ph. G.) Extract of malt, 4712 oz., mixed with 1 oz. of pyrophosphate of iron and citrate of ammonia, dissolved in 112 oz. of water.

Extract of Ma′′rygold. Syn. Extractum calendulæ, L. Prep. 1. (Guibourt.) By maceration of the herb and flowers of the common marygold (Calendula officinalis) in tepid water for 24 hours, and subsequent coction for 15 or 20 minutes.

2. (Ph. Baden.) As EXTRACT OF ANGELICA—Ph. Baden.—Dose, 2 to 10 gr.; cordial, diaphoretic, alterative, and emmenagogue; in dyspepsia, and scirrhous and cancerous affections.

Extract of May-apple. Syn. Extractum podophylli. L. Prep. (Ph. U. S. 1841.) From the tincture of the root (rhizomes) of may-apple (Podophyllum peltatum).—Dose, 5 to 15 gr.; as a substitute for extract of jalap. See Podophyllin.