A discourse on some of the principal desiderata in natural history : and on the best means of promoting the study of science, in the United-States ; read before the Philadelphia Linnean Society, on the tenth of June, 1807 Barton, Benjamin Smith, 1766-1815. Natural History -- education Biomedical Research -- education Philadelphia : Printed by Denham & Town ..., 1807 Philadelphia Linnean Society. Addresses Text [7], 10-90 p. nlm:nlmuid-2542053R-bk 2542053R http://resource.nlm.nih.gov/2542053R English The National Library of Medicine believes this item to be in the public domain : https://creativecommons.org/publicdomain/mark/1.0/