Introductory lecture to the course of medical institutes, in the University of Pennsylvania : delivered November 4, 1842 Jackson, Samuel, 1787-1872. Physiological Phenomena Philadelphia : Merrihew & Thompson, printers, 1842 University of Pennsylvania. Lectures Text 26 p. nlm:nlmuid-9617045-bk 9617045 http://resource.nlm.nih.gov/9617045 English The National Library of Medicine believes this item to be in the public domain : https://creativecommons.org/publicdomain/mark/1.0/