An inquiry into the effects of light in respiration : submitted, as an inaugural essay, to the examination of the Rev. John Ewing, S.T.P. provost ; the trustees & medical faculty, of the University of Pennsylvania, on the thirty-first of May 1800 ; for the degree of Doctor of Medicine / by Joseph Trent, of Richmond, Virginia, member of the Philadelphia medical and chemical societies.

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An inquiry into the effects of light in respiration : submitted, as an inaugural essay, to the examination of the Rev. John Ewing, S.T.P. provost ; the trustees & medical faculty, of the University of Pennsylvania, on the thirty-first of May 1800 ; for the degree of Doctor of Medicine / by Joseph Trent, of Richmond, Virginia, member of the Philadelphia medical and chemical societies. Public Domain Mark. Source: Wellcome Collection.

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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.)