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Start Over Authors Watts, Washington. ✖Remove constraint Authors: Watts, Washington. Titles An inquiry into the causes and nature of the yellow fever: submitted to the examination of the Rev. John Ewing, S.T.P. provost, the trustees and medical professors of the University of Pennsylvania, on the sixth day of June, 1799, for the degree of Doctor of Medicine ✖Remove constraint Titles: An inquiry into the causes and nature of the yellow fever: submitted to the examination of the Rev. John Ewing, S.T.P. provost, the trustees and medical professors of the University of Pennsylvania, on the sixth day of June, 1799, for the degree of Doctor of Medicine

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  • An inquiry into the causes and nature of the yellow fever: submitted to the examination of the Rev. John Ewing, S.T.P. provost, the trustees and medical professors of the University of Pennsylvania, on the sixth day of June, 1799, for the degree of Doctor of Medicine1