Poinsett, J. R. (1841). Discourse, on the objects and importance of the National institution for the promotion of science: Established at Washington, 1840, delivered at the first anniversary. Washington: P. Force, printer.

Poinsett, Joel Roberts. Discourse, On the Objects and Importance of the National Institution for the Promotion of Science: Established At Washington, 1840, Delivered At the First Anniversary. Washington: P. Force, printer, 1841.

Poinsett, Joel Roberts. Discourse, On the Objects and Importance of the National Institution for the Promotion of Science: Established At Washington, 1840, Delivered At the First Anniversary. Washington: P. Force, printer, 1841.