Washington Jan. 12. 07.
I am again to return the tribute of my thanks for the continued proofs of favor from the American Philosophical society; and I ever do it with sincere gratitude, sensible it is the effect of their good will, and not of any services I have it in my power to render them. I pray you to convey to them these expressions of my dutiful acknolegements; and to accept yourselves thanks for the favorable terms in which your letter of the 2d. inst. announces the suffrage of the society.
I am happy at the same time to greet them on the safe return of a valuable member of our fraternity from a journey of uncommon length & peril. he will ere long be with them, & present them with the additions he brings to our knolege of the geography & natural history of our country, from the Missisipi to the Pacific.
Tendering them my humble respects, permit me to add for yourselves my friendly salutations & assurances of high consideration.