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2524. The eye: its imperfections and their prevention : comprising a familiar description of the anatomy and physiology of the organ of vision : rules for the preservation, improvement, and restoration of sight : with remarks on near sight and aged sight, on optics, and the use and abuse of spectacles, with directions for their selection

2527. An experimental enquiry into the properties of the Polygala senega: submitted, as an inaugural thesis, to the examination of the Reverend John Andrews ..., the Trustees, and medical professors of the University of Pennsylvania, on the eighth day of June, 1803 for the degree of Doctor of Medicine