Typed carbon transcript from a draft of John Bartram's journal of a trip to Maryland and Virginia in 1738. Note on transcript "most important, never published in full, EGS." EGS is Earl Gregg Swem. Another note states, "the journey of 1738, which is outlined in [William] Darlington, letter to [Peter] Collinson, December 1738. See 'Brothers of the Spade' [by E.G. Swem]." Includes notes and correspondence on John Bartram by Earl Gregg Swem in 1926.

Copies of letters written by John Clayton author of Latin text Flora Virginica, exhibens plantas (Lugduni Batavorum, 1762), to Carl von Linne [Carolus Linnaeus] concerning Linnaeus' published works, seeds, Gmelin's Flora Siberica, and Clayton's election to the Swedish Royal Academy of Science; and to [John] Bartram concerning seeds, and a trip by Bartram to Florida.