1To Thomas Jefferson from Christiaan Hendrik Persoon, 15 December 1807 (Jefferson Papers)
C’est comme á l’envi que les deux mondes s’empressent de Vous faire hommage des productions de...
2From Thomas Jefferson to Christiaan Hendrik Persoon, 15 July 1808 (Jefferson Papers)
I recieved safely, through the good offices of mr Warden, the copy of your Synopsis, which you...