Congratulates Smith on knighthood. Has some of [Thomas] Nuttall's [(1786-1859)] living plants from the banks of the Missouri, including 'Jussieua angulata' and 'Mentzelia oligosma', hopes to be able to confirm Smith's conjecture that it is the same genus as 'Loasa'. Received [Matthew] Flinders' "Voyage [to Terra Australis]", would like Smith's opinion of [Robert] Brown's observations on natural order. Has 'Lathyrus amplicarpos' in flower answering to the "old Morrison" description, asks if Smith described it from a dyed specimen in the "Encyclopedia" [Abraham Rees' "Cyclopedia"].