An inaugural essay, on the eye, and on vision : submitted to the examination of the Rev. John Andrews ..., the Trustees and medical professors of the University of Pennsylvania, on the 5th day of June, 1805, for the degree of Doctor of Medicine / by Elisha de Butts, of Maryland.

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An inaugural essay, on the eye, and on vision : submitted to the examination of the Rev. John Andrews ..., the Trustees and medical professors of the University of Pennsylvania, on the 5th day of June, 1805, for the degree of Doctor of Medicine / by Elisha de Butts, of Maryland. Public Domain Mark. Source: Wellcome Collection.

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