[274] Pharm. Journ. vii. (1866) 183.
[275] Collected in 1829 by Biltz and obligingly placed in 1867 at my disposal by his son.—F. A. F.
[276] The statement of Biltz (1831) that an opium collected by himself from poppies grown in 1829 at Erfurt afforded 33 per cent. of narcotine is contrary to the experience of all other chemists. The same must be said of Mulder’s assertion respecting an opium giving 6 to 13 per cent. of narceine.
[277] In selecting a sample for analysis, care should be taken that it fairly represents the bulk of the drug. We prefer to take a little piece from each of several lumps, mix them in a mortar, and weigh from the mixed sample the required quantity.
[278] See also Proctor, Pharm. Journ. vii. (1876) 244, and Yearbook of Pharm. 1877. 528.
[279] See Tingling, J. F. B., The poppy-plague and England’s crime, London, 1876 (192 p.); Turner, F. S. (Secretary of the Anglo-Oriental Society for the Suppression of the Opium Trade), British Opium Policy and its results to India and China. London, 1876 (308 pages); Sir Edw. Fry, England, China, and Opium, 1878 (61 p.).
[280] Botanique et Matière Méd. de Pline, ii. (1833) 446.
[281] Mommsen in Berichte der sächs. Gesellsch. der Wissenschaften zu Leipzig, 1851. 1-80.
[282] Enclosed pasture land in England was rare, and there was but scanty provision for preserving stock through the winter, root crops being unknown. Hence in November there was a general slaughtering of sheep and oxen, the flesh of which was salted for winter use.—See also Pharm. Journ. viii. (1876, April 27) 862.
[283] Rogers, Hist. of Agriculture and Prices in England, i. (1866) 223.