Sketches on animal life : an inaugural essay, submitted to the consideration of the Honourable Robert Smith, provost ; and of the regents of the University of Maryland / by John Cromwell, of Huntingdon County, Pennsylvania, member of the Baltimore Medical Society.

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Sketches on animal life : an inaugural essay, submitted to the consideration of the Honourable Robert Smith, provost ; and of the regents of the University of Maryland / by John Cromwell, of Huntingdon County, Pennsylvania, member of the Baltimore Medical Society. Public Domain Mark. Source: Wellcome Collection.

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