American journal of pharmacy . ous course, andsometimes their two rows ot cells separate and encase one of theselarge oil cells. The resin is probably held in solution by the the fibrous and corky layers of the bark, a double row ofpeculiarly shaped cells are observable, probably a layer ofphellogen. The corky cells are empty and rather large, presenting no pointsof particular interest. A thin epidermis covers the corky layer,easily detachable and often wanting. 538 A ra Ha Nu die a u lis. Am. Jour. 1897. CHEMISTRY. Samples of Aralia nudicaulis were gathered in the f
American journal of pharmacy . ous course, andsometimes their two rows ot cells separate and encase one of theselarge oil cells. The resin is probably held in solution by the the fibrous and corky layers of the bark, a double row ofpeculiarly shaped cells are observable, probably a layer ofphellogen. The corky cells are empty and rather large, presenting no pointsof particular interest. A thin epidermis covers the corky layer,easily detachable and often wanting. 538 A ra Ha Nu die a u lis. Am. Jour. 1897. CHEMISTRY. Samples of Aralia nudicaulis were gathered in the fall in the hillywoods in Bergen County, N. J., and most of the chemical exami-nations were made on these samples. A further supply was collectedin the following spring, when the flowers of the plant were inbloom. The general plan of the work was: (i) To determine the presence or absence of alkaloids or gluco-sides. (2) To determine the presence of other important constituents. O0o0o<^n^^0°p^^^n000n toU o o OOqOoO (^n^ Of)L. Fig. J.—Wood, from pith to bark, longitudinal section. (3) To undertake a systematic analysis and estimation of theconstituents. For the first part of the work, testing for alkaloids and glucosides,samples of the drug gathered in the fall as well as in the springwere finely ground and digested for three days in a closely stopperedflask with Prollius fluid. After filtering, the liquid was treated withacidulated water (sulphuric acid i part, water 5 parts) and the aque-ous liquid submitted to examination. Wagners reagent, tannin, ^?«r-} Aralia Nudicaulis. 539 picric acid, platinic chloride, sodium phospho-molydate, and Mayersreagent, gave no precipitate. All the tests were repeatedly verifiedby using larger quantities of acidulous solutions. For the further determination of important constituents, togetherwith alkaloids and glucosides, the following experiments weremade: Large samples of the finely ground rhizome of the plant, gatheredboth in s
Size: 1824px × 1370px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookidamericanjournal69phi, booksubjectpharmacy
