National Institutes of Health Bulletin Volume 86-90 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 edition. Excerpt: ...crop Of l11mPe1' bemes is said to be only one-third of last year's.--Pr0c. N. W. D-A 1911' p. 86. An unsigned review of the Ph. Germ. V (Pharm. J. 1911, "' 86' P' 654) points out that the specific gravity is now given:18 0-560 to 0.880, instead of 0.865 to 0.880, and it is required to be soluble in 10 parts of alcohol.. _ The Committee of Reference in Pharmacy (Third Report, p. 14) describes juniper oil as distilled from the ripe fruit, instead of from the full grown unripe green fruit, as now. Specific gravity, 0.862 to 0.890, increasing with age; optical rotation, --3 to--15; refractive index at 25, 1.472 to_1.488; soluble, when freshly distilled, in 4 volumes of 95 per ccnt alcohol. See also Pharm. J. 1911, v. 87, p.591. Parry, Ernest J., thinks that the monograph for oil of juniper is disappointing. Enormous quantities of carefully prepared turpentine can be added without interfering with the figures given.--Chem. & Drug. 1911, v. 79, p. 450. Hill and Umney, commenting on the paper by Parry, point out that they have stated (Perf. & Ess. Oil Rec., Sept. 1910, p. 229) that the refractive indices of the higher fractions arc of considerable importance, a hint that may be taken note of by the Committee of Reference in Pharmacy in the final revision of the pharmacop(nia.--Chem. & Drug. 1911, v. 79, p. 492. Evans Sons Lescher & VVebb (Analytical Notes, 1911, 1912, p. 40) report the following constants observed in 13 samples of apparently genuine oil of juniper: Specific gravity from 0.8649 to 0.8741, Optical rotation from--8 to--10.12, refractive index from 1.4758 to 1.4809, and soluble in 6 to 10 volumes of 90 per cent alcohol. See also p. 77. Southall Bros. & Barclay (Rep. 1911, Birmingham, 1912, ...