1To James Madison from Andrew Ellicott, 22 January 1817 (Madison Papers)
I address you thus familiarly as an old friend, for the purpose of introducing to your acquaintance without ceremony the bearer Captn. Douglass of the Corps engineers, and assistant professor of natural and experimental philosophy in this seminary, a young gentleman equally distinguished for his scientific acquirements, and his knowledge of the theory and practice of engineering, in which he...