1To Thomas Jefferson from Richard Harlan, 7 April 1826 (Jefferson Papers)
Some months Since, I had the honour to present to you, a Copy of my work, the Fauna Americana,—the receipt of which was politely acknowledged by You— Since which time the work has been rudely attacked both in Phil d and Boston—& feel well assured that you possess sufficient interest to induce you to give your attention to the accompanying offensive pamphlet when you have done with it, do me...
2From Thomas Jefferson to Richard Harlan, 23 June 1825 (Jefferson Papers)
I thank you, dear Sir, for the copy of your Fauna Americana which you have been so kind as to send me, with the 2. interesting pamphlets on the Genus Salamandra and Agama. you have rendered a service of essential value to science in bringing to-gether the American subjects of Nat Hist. separately from those of the other quarter’s of the globe and relieving them at length from the Confusion...
3To Thomas Jefferson from Richard Harlan, 10 June 1825 (Jefferson Papers)
Ambitious to have my name associated, in some respects, with one who has so long and so justly enjoyed so liberal a share of public estimation, has induced me to take this opportunity of addressing you, and of requesting you to accept of a copy of my recent work, which has for its object, a concise and s-cientific des-cription and classifycation of the mammiferous animals of N.America.—At the...