An inaugural dissertation, on the chemical and medical properties of the persimmon tree, and the analysis of astringent vegetables : submitted to the examination of the Revd. John Ewing, S.T.P. provost ; the trustees and medical professors, of the University of Pennsylvania ; for the degree of Doctor of Medicine / by James Woodhouse, A.M. ; honorary member of the American and Philadelphia medical societies.
- James Woodhouse
- Date:
- [1792]
Licence: Public Domain Mark
Credit: An inaugural dissertation, on the chemical and medical properties of the persimmon tree, and the analysis of astringent vegetables : submitted to the examination of the Revd. John Ewing, S.T.P. provost ; the trustees and medical professors, of the University of Pennsylvania ; for the degree of Doctor of Medicine / by James Woodhouse, A.M. ; honorary member of the American and Philadelphia medical societies. Source: Wellcome Collection.
Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)
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![L to ] tnus to a bright red. A black friable matter remained in the retort, which poiTefTcd the properties of the acid in a fmall degree, and when burned to afhes in the open air, gave the earth of alum. EXPERIMENT II. One drop of the \inripe juice, dropped in a gallon of rain water, in which one grain of green vitriol was d;f- folved, produced a purple color in the liquor. EXPERIMENT III. Iron filings digefted in the unripe juice, -was changed t© the confidence of a pafte, upon approaching a candle to the mouth of the matrafs, in which the experiment was made, a loud explofion took place. EXPERIMENT IV. Mixt with common fpirit, it forms a jelly, with the fpirit of fal ammoniac, it forms a coagulum of the con- fidence of foft foap. EXPERIMENT V. Infpiffated in the fun, it yields a large quantity of a brown, tranfparent, aftringent gummy fubfiance, of which common fpirit diffolves a larger quantity, than fpirit of wine, or the vegetable oils. Pure iEther has no action Upon it. Spirit of wins extracts the virtues of that part, which is infoluble in water. EXPERIMENT VI. The infoluble part of this fubftance, fufpended in wa- ter, appears like a jelly, collected, dried and diddled, H yields water, acid, oil and fixed air.](https://iiif.wellcomecollection.org/image/b21165373_0012.jp2/full/800%2C/0/default.jpg)
