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Biographical sketch of
- Fragments of the natural history of Pennsylvania; folio, 42 pages —1799.
- New views of the origin of the tribes and nations of America— octavo, 165 pages—1798.
- Supplement to a memoir concerning the fascinating faculty which has been ascribed to the rattlesnake and other North American serpents, in a letter to professor Zimmerman of Brunswick, in Germany—octavo, 38 pages, 1800.
- Memoir concerning the disease of Goitre, as it prevails in different parts of North America; octavo, 94 pages, 1800.
- Collections, &c. part first, second edition—64 pages, octavo— 1801.
- Elements of botany, or, outlines of the natural history of vegetables, illustrated by 30 plates, first edition, two volumes octavo, together 508 pages—1803.
- Collections, &c. part second first edition, 53 pages octavo— 1804.
- Facts, observations, and conjectures relative to the generation of the opossum of North America, in a letter to mons. Roume of Paris 8vo. 14 pages, 1809.
- A discourse on some of the principal desiderata in natural history, and on the best means of promoting the study of this science in the United States; read before the Philadelphia Linnean Society, on the 10th of June 1807—octavo, 90 pages—1807.
- Some account of the Siren Lacertina, and other species of the same genus of amphibious animals: in a letter to Mr. John Gottlob Schneider of Saxony, with an outline engraving of the animal, from a finished drawing made by myself. Octavo, 34 pages, 1808.
- Collections, &c. 3d edition, octavo, 120 pages; 1810.
- A memoir concerning an animal of the class of reptilia, or amphibia, which is known in the United States by the names of alligator and hell-bender, with an engraving; octavo, 26 pages—1812.
- Flora Virginica: sive plantarum, praecipue indigenarum, Virginiae Historia inchoata. Iconibus illustrata.[1] Pars prima, octavo, 74 pages. Printed in 1812, and going only as far as the
- ↑ There are no plates in it