TO DOCTOR BARTON.
Washington, October 18, 1807.
Dear Sir,—I received last night a diploma from the Linnæan Society of Philadelphia, doing me the honor of associating me to their body. I pray you to do me the favor of assuring the society of my sensibility for this mark of their notice, and of my thanks. Sincerely associated with the friends of science, in spirit and inclination, I regret the constant occupations of a different kind, which put out of my power the proper co-operations with them, had I otherwise the talents for them. I shall gladly embrace any occasion which can be offered of being useful to the society, as a mark of my acknowledgments for their favors, with my thanks for the copy of your discourse, enclosed at the same time. I pray you to receive my friendly salutations, and assurances of great respect and esteem.