Medicine as a science and an art--its philosophy, influences, purposes and results, its past and present condition and future prospects : being an address before the Medical Society of the District of Columbia, delivered by appointment, at the hall of the Smithsonian Institution, January, 1852 Tyler, Grafton, 1811-1884. Medicine Philosophy, Medical Washington : Printed and published by R.A. Waters, 1852 Medical Society of the District of Columbia. Lecture Text 35 p. nlm:nlmuid-101609071-bk 101609071 http://resource.nlm.nih.gov/101609071 OCLC: 857277972 English The National Library of Medicine believes this item to be in the public domain : https://creativecommons.org/publicdomain/mark/1.0/