NAPH
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brown, somewhat translucent, but not transparent, in tears of anirregular form, but these sometimes broken, and it is also light.Medicinally it is a warm aromatic, tonic, stimulant, and expectorant,also diaphoretic, and said to be emenagogue. The dose is gr. x to5J along with nitrate of potass, camphor, or alkaline sulphates, forchlorosis, dyspepsia, hysteria, humoral asthma, catarrh, amenorr-hoea atonica, foetid belchings, &c. Externally it is used in form oftincture, &c, for spongy gums, aphthie, and for gangrenous, carious,and fistulous sores. It is often used in stimulant compounds.
Myrtle. Myrtus communis. P. The leaves and berries are aro-matic, warm, and astringent, and are sometimes prescribed inprofluvia.By the perfumer myrtle-leaves are used for herb snuff, and myrtlewater. The leaves should be fresh from the tree, and the commonsort are always to be preferred to any of those called the sweet-smelling sorts.
Myrtle Water. Macerate Ifcj of fresh myrtle-leaves, or twigs, in agallon of soft water, and after it has stood a day, add Jj cr more ofgood yeast. Let it stand other two days, and then put it into aretort with Jij of bay salt; draw off all the water, to which addmore fresh leaves or twigs, and proceed as at first, repeating thisprocess three or four times. It ought to be kept well stopped, andin a place neither too warm nor too cold.Poisonous, producing burning of the throat, thirst, pain of the stomach,convulsions, and death. The best treatment is a smart emetic, fol-lowed by castor oil, or saline purgatives and mucilaginous drinks.
Myrrhus. See Pimento Baccze.
N.
Xanceic Acid. This is procured from sour rice and other ascescentvegetable substances, and is without colour, does not crystallize,and tastes very sour. It is named by Bracconot in honour of thetown of Nancy, where he resides.
Naphtha is a fine transparent, colourless, or pale yellow fluid, foundnatural in some parts of Persia, issuing out of clay soils. A sub-stance little different is procured by distillation from coal tar. Theodour is penetrating, and not disagreeable. Its chief use is chemi-cal. It is used for preserving potassium from oxidizing. It is usedexternally as a stimulant, &c.
Naphthaline is a white crystalline body procured by gentle distilla-tion from coal tar.