An inaugural dissertation on the chemical properties of atmospheric air : submitted to the examination of the Rev. John Ewing, S.T.P. provost, the trustees and medical professors of the University of Pennsylvania : for a degree of Doctor of Medicine, on the twelfth day of May, 1791 / by William R. Cozens, of New-Jersey, member of the Philadelphia Medical Society.

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An inaugural dissertation on the chemical properties of atmospheric air : submitted to the examination of the Rev. John Ewing, S.T.P. provost, the trustees and medical professors of the University of Pennsylvania : for a degree of Doctor of Medicine, on the twelfth day of May, 1791 / by William R. Cozens, of New-Jersey, member of the Philadelphia Medical Society. 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.)