American journal of pharmacy . rch in the roots of Coptis Teeta, Wallich, found in the Mishmi Mountains, eastwardof Assam, and recognized by Fliickiger and Han bury as the officinalcoptis, starch is known to be present; though in 1873 Mr. E. B. Grossfailed to detect it in our American Coptis trifolia. Mr. Burr hasrepeatedly verified his observation on authentic specimens. Mr. Wm. C. McFetridge, p 4 working upon the Apocynumcannabinum, succeeded inisolating very readily thelaticiferous vessels. The il-lustration shows this quiteclearly on longitudinal sec-tion. A transverse se
American journal of pharmacy . rch in the roots of Coptis Teeta, Wallich, found in the Mishmi Mountains, eastwardof Assam, and recognized by Fliickiger and Han bury as the officinalcoptis, starch is known to be present; though in 1873 Mr. E. B. Grossfailed to detect it in our American Coptis trifolia. Mr. Burr hasrepeatedly verified his observation on authentic specimens. Mr. Wm. C. McFetridge, p 4 working upon the Apocynumcannabinum, succeeded inisolating very readily thelaticiferous vessels. The il-lustration shows this quiteclearly on longitudinal sec-tion. A transverse sectionshows the same tissue in a very striking man-ner, with this difference, that in the latter casethe vessels are seen as oval, isolated openings,containing bodies of granular matter insidea very delicate cell wall. There are two specialpoints about these vessels in this species;first the ease with which they may be studied,and second, their relation to the rather anoma-lous laticiferous vessels in the various ANALYSIS OF THE LEAVES OF CEANOTHUS AMERI-CANUS, LlNNE. By J. H. M. Clincpi, an Inaugural Essay. Five grams of the air-dry leaves subjected to a heat of 100 °C. untilthey ceased to lose weight, weighed 4*455 grams, showing a loss of•545 grams == 10*9 per cent, amount of moisture. Forty grams of the air-dry leaves were incinerated and yielded 1*895grams of ash == 5*31 per cent., of which 50*526 per cent, was solublein water, 48*629 per cent, was soluble in hydrochloric acid, *8 percent,was soluble in boiling sodic hydrate. An analysis showed the presenceof potassium, calcium, magnesium, aluminium, iron and silica, com-bined as chlorides and sulphates in the aqueous solution, and as 132 Ceanothus Amerieanus. j Am. Jour. Pharm.(. March, 1884. phosphates, sulphates, and carbonates in the hydrochloric acid solution(the iron may have been derived from the mill during grinding). Thirty grams of the powdered air-dry leaves were exhausted withpure be
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Keywords: ., bookcentury1800, bookidamerica, booksubjectpharmacy, bookyear1835
