Oil of Corian′der. Syn. Oleum coriandri, L. From the fruit (seeds) of Coriandrum sativum. Yellowish; aromatic; carminative. Prod. (Dried fruit) 51⁄2 to 6%.
Oil, Corn. The name given by Mulder to a peculiar fatty compound found in the fusel oil of the distilleries of Holland. It has a very powerful odour, resembling that of some of the umbelliferous plants, and is unaffected by caustic potassa. See Oil, Fusel (page 772).
Oil of Cu′bebs. Syn. Oleum cubebaram, O. cubebæ (B. P., Ph. E. & D.), L. From the fruit of Cubeba officinalis, or cubebs, coarsely ground. Aromatic, hot, and bitter tasted; odour, that of the fruit; faintly green, colourless when pure. Sp. gr. ·129. Prod. 9% to 11%.
Pur., &c. When pure, iodine has little action on this oil, and immediately gives it a violet colour, without any very marked reaction; nitric acid turns it opaque, and the mixture changes to a pale red when heated; sulphuric acid turns it of a crimson red. When adulterated with oil of turpentine, both its viscidity, solubility in rectified spirit, and its density, are lessened; when mixed with castor oil it leaves a greasy stain on paper.—Dose, 10 to 15 drops, in the usual cases in which cubebs in substance is given. 5 to 20 minims (B. P.), suspended in water by mucilage and sugar.
Oil of Cumin. Syn. Oleum cumini, O. cymini, L. From the fresh fruit (seed) of Cuminum Cyminum, or cumin. Pale yellow; smells and tastes strongly of the seeds. Sp. gr. ·975. Prod. 21⁄2% to 3%.
Obs. Oil of cumin is a mixture of two oils differing in volatility, and which may be separated by careful distillation. The more volatile one has been named cymol; the other, cuminol.
Oil of Dill. Syn. Oleum anethi (Ph. L. & E.), L. From the bruised fruit (seed) of Antheum graveolens. Pale yellow; odour, that of the fruit; taste, hot and pungent; carminative. Sp. gr. ·188 to ·882. Prod. 4% (nearly).
Oil of El′der. Syn. Attar of elder flowers; Oleum sambuci, L. From elder flowers (Sambucus nigra). Butyraceous; odour not very marked.
Oil of El′emi. Syn. Oleum elemi, L. From the resin. Isomeric with oil of turpentine.
Oil of Er′got. Syn. Ethereal o. of e.; Oleum ergotæ, O. e. æthereum, O. secalis cornuti, L. Prepared by evaporating the ethereal tincture at a very gentle heat, and, preferably, allowing the last portion of the ether to escape by spontaneous evaporation. Brownish-yellow; lighter than water; soluble in ether and solution of potassa; only partly soluble in alcohol. It appears to be a mixture of volatile and fixed oil, with some resinous matter.—Dose, 10 to 20 drops, in hæmorrhages; 10 or 12 drops every 3 or 4 hours, in diarrhœa; 20 to 50 drops, as a parturifacient, &c. Externally, in rheumatism, toothache, &c.