Science papers : chiefly pharmacological and botanical / by Daniel Hanbury ; edited, with memoir, by Joseph Ince.

Daniel Hanbury

Date:: 1876

Credit: Science papers : chiefly pharmacological and botanical / by Daniel Hanbury ; edited, with memoir, by Joseph Ince. Source: Wellcome Collection.

192/578 page 172

$1859. The results I have tabulated as under:— Table showing the Eesults of a comparative Examination OF twelve samples of Otto of Eose. No. Place of Manufacture, and Manufacturer's Name. Fusing Point. Percentage of Stearoptene. Other Characters. 1 English. London—Messrs. Allen and Hanburys. 91° F. 68 1 Of a pale straw colour, crystalline, odour weak and not remarkably fragrant. 2 London—Mr. Whipple, at Messrs. Barron and Go's. 87° F. 50-6 Eesembles No. 1. 3 French. Paris—M. Chardin Ha- dancourt. 85-5° F. 60-8 A crystalline mass, of a pale green colour; odour weak but agreeable. 4 Grasse — M. Antoine Chiris. 74° F. 37-2 Of a straw colour ; when congealed, form- ing a highly crystalline mass; odour very fragrant. 5 Grasse—M. Mero. 71° F. 41-9 Of a brownish yellow; forming, when congealed, a transparent mass of platy crystals. 6 Cannes~~]Vl]\I. Herman Frei-es. 70° F 35 0 7 Turkish. Kizanlik, 65° F. 6-7 Colour veiy pale yellow; when congealed, it constitutes a confused mass of platy crystals ; odour exceedingly fragrant. 8 ? seal G. S. & Co. 63° F. 7-3 Co'our very pale yellow; a mass of platy crystals when congealed. 9 9 62° F. 6-4 Resembles No. 8. 10 9 62° F. 6-6 The finest Otto of the London market. In its characters it resembles No. 8. 11 ? 61° F. 4-6 Resembles No. 8. 12 ? second quality. 56° F. 4-25 Wholesale price in London, in large quantities, 14s. per ounce. This table shows that the fusing-point of Otto of Kose, and the proportion of stearoptene varies greatly in different samples. But it will also be observed that there is a similarity in the Otto produced in each locality. Thus, that of the South of England and North of France (samples Nos. 1, 2, and 3) has a Variation of high fusing-point (varying from 85° to 91°), and contains a large fusing-point. percentage (50 to 68) of stearoptene. The Otto of the South of France fuses betwen 70° and 74°, and affords from 35 to 41 per cent, of stearoptene. That of Turkey, if we may consider$