Encloses an address [extant]. He has sent his “critical observations on some errors of Pursh” by another conveyance. Death of Dr Bery Barton, a member of the Linnean Society. Collecting a new herbarium, currently has 3000 specimens of 150 species. Hopes to be an occasional correspondent with Smith.

“Circular address on Botany and Zoology; followed by the prospectus of two periodical works: Annals of Nature and Somiology of North America. By C S Rafinesque” [33 pp].

Introduces [John] Bradbury, who is returning to England after travelling up the Missouri river. Rafinesque asks for his papers to be returned if they are not being published in "Linnean Transactions". Requests introductions to [William Elford] Leach, [Robert] Brown, [Aylmer Bourke] Lambert, [Richard] Salisbury, and "other eminent botanists and zoologists". Criticises Pursh's "Flora America Septentrionalis" for copying names previously published himself. Dr [Samuel Latham] Mitchill of New York [(1764-1831) naturalist] has published 60 new species of fish in first volume of "Transactions of the [New York] Society" and presented them with account of reptiles, crustaceans, testaceurs etc. Rafinesque has discovered new additional species: 'Perca mucronata', 'Petromyzon xanthodon', 'Phycis marginatus', and presented memoir to New York Philosophical Society on Sturgeons of North America. Plans to explore Lakes Champlain and George, [Vermont and New York] for fish.