?ART III.

Distilled, or Volatile Oils

727

of mucilage. It is more generally empIo\'ed externally its arubefacient in rheumatism and paralysis ; and a mixture of f %\.of this oiJ with f|ss. of tincture of opium has been found be-neficial as a friction to the affected part in tic doloureux; andin hooping-cc uj bed upon the chest twice or three times

a. day. '

Officinal preparation. Spiritus Ammonia; succinates.

OLEUM TEREBlNTHINEiE, Dub. Oil of Turpentine.

" Take of common Turpentine, Jive pounds ; water, fourpints. Distil the oil from a copper alembic. Yellow resinwill re main in the retort after the distillation."

OLEUM TER.EBINTHINJE RECTIFICATUM,Lond. Dub. Rectified Oil of Turpentine.

" Takeof oil of Turpentine, a pint (two pints, Dub.); water,four pints. Distil the oil (a pint and a half of the oil. Dub.)

Oleum volatile Pini purissimum, Edin. Purified Oilof Turpentine.

" Take of oil of Turpentine, one part; water, Jour parts.Distil as long as any oil passes over."

Syn. Huile essentiale de Tirebenthine (F-), Terbenthiitfhl (GO, Olio diTrementina {I.), Aieyte de Pino (S-).

The chemical qualities and medicinal properties of oil ofTurpentine have been already noticed. (See Pinus, Part ii.)The rectification of it is a troublesome process, and on ac-count of the great inflammability of the vapours, much cau-tion is required to prevent them from escaping through thelutings of the vessels, and catching fire. The rectified oil isa little lighter than the common oil, and completely free fromany resinous admixture; but in other respects it has no pecu-liar excellence to recommend it. "What remains in the retortis a thick resinous matter, and is denominated balsam of tur-pentine.

Medictd properties and uses. — These have been already men-tioned {Part. ii.). I have had several opportunities of ascertain-ing the efficacy of oil of Turpentine as a remedy for tape-worm.In every case in which I have administered it, the worm hasbeen expelled, and the symptoms relieved. In general, theanimal has been voided of a livid hue, and evidently killed; butin one instance, in which a portion of five feet in length waspassed after two fluid ounces of the oil had been taken, it wasnot livid, and when voided, exhibited evident signs of anima-tion. In no instance have we perceived that the large dosesof the oil, which were taken for the above purpose, producedany particular effect on the urinary organs. The more usualsensible effects are temporary intoxication, accompanied with

'- The empirical nostrum, known by the name of Roche's Kmbvccatum, forhooping cough, consists of two parts of Olive oil, one part of oil of Amber, andone part of oil of Clores.

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