File:American journal of pharmacy (1884) (14595005350).jpg

Identifier: americanjour564141884phil (find matches)
Title: American journal of pharmacy
Year: 1835 (1830s)
Authors: Philadelphia College of Pharmacy Philadelphia College of Pharmacy and Science
Subjects: Pharmacy Pharmacology
Publisher: Philadelphia : Philadelphia College of Pharmacy
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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cork bark (ci) is composedof twenty-five or thirty rows of regular thick-walled cells, filled withred coloring matter. The middle bark is composed of large, irregularparenchyma cells (d) making up the greater share of the whole bark.Throughout this portion of the. bark are numerous sclerenchyma cells(b) arranged in groups and also one to three rows are always foundclose to the outer bark. These sclerenchyma cells make a prominentmarking, as seen with naked eye, in cross-section fig. 2. Also atintervals, are one to three ranked series of sclerenchymatous fibres orbast-fibres (c) arranged tangentially, which turn brown after treatmentwith iodine. The inner bark does not differ very much from themiddle except it is divided by several rows of medullary rays (e) com-posed of regular cells. Chemical Examination:—A portion of drug dried at 110° C untilconstant weight, was found to lose 10 per cent, as moisture. Anotherportion was incinerated, leaving a white ash amounting to 4*55 percent.
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332 Cascara Amarga. (AmiST1, Soluble in water: K, Na, sulphate, carbonate 1*10 Soluble in dilute hydrochloric acid ; Aluminum, iron, phosphates and carbonates 2*89 Insoluble in sodium hydrate ; sand 56 Total 4-55 Several portions of drug were treated with benzol, alcohol and water : Amount extracted with benzol 2 72 per ct. alcohol (-889 at 60°) lOOO 11 cold water 4-16 44 The benzol residue was dried at a low temperature, that at 110° C.removing volatile oils and traces of moisture. This residue wastreated with several portions of warmed acidulated water, this solutiongiving reactions for an alkaloid, with tannic acid, Mayers reagent andother test-reagents. Residue was treated with eighty per cent, alcohol(sp. gr. 848 at 60°) dissolving resins leaving a residue of fixed oils,resins and .wax. The following table gives the systematic course of analysis: Benzol extract contains : Volatile oils driven off at 110° C 50 per ct. Soluble in acid water, reactions for alkaloids *22 Soluble

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