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.

  • Woodhouse, James, 1770-1809.
Date:
[1792]
Catalogue details

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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    In oppofition to this it may be faid, the urine always contains a fuperabundant acid, which keeps the calcare- ous matter diflblved ; confequently, whatever tends to rid the urine, of this excefs of acid, favours the depofition of the calcareous matter. It may likewife be faid, the aftrin- gent matter enters the courfe of circulation, and difiblves the (lone. Another objection to the opinion of Dr. Cullen, is, that all (tones taken from the bladder, are not compofed of the fame principles; fome containing an acid, others be- ing evaporable by heat, while others are converted into quick lime. * To afcertain whether the aflringent matter, was taken into the courfe of circulation, or into the bladder unalter- ed, I fwallowed (ix ounces of a ftrong infufion of the Per- fimmon gum diluted with half a pint of water; and after frequent micturition at different intervals, could not difco- ver it in the urine by the addition of green vitriol. At the fame time I opened a vein in the arm, and could not difcover it in the (brum, by the fame tefl. To fee the effe£l of a concentrated aflringent, on the calculus, I put one fcruple of a ftone taken from the blad- der of a horfe, reduced into an impalpable powder, into Perfimmon juice, one fcruple into water, and another into recent urine, and after the mixtures had flood twenty four hours, I filtered the water, and having dried the powder, * PercivaVs Ejp/ysvol. I. AndTranfatlions of'theRoyal Society of Edinburgh vol. 3.