St. Louis 29th. Octr. 1804—
Captain Lewis, before he left this, engaged a trader on the River Demoine to procure vocabularies of the Ayovais and Sioux languages. The trader has obtained that of the former, which I do myself the honor to enclose: That of the latter will be furnished sometime next spring, when it will be transmitted to you agreeably to the request of Capt. Lewis.
I am, Sir, with sentiments of high respect, Your very huml. Servt.
Amos Stoddard, Capt
corps of Artillerists
DLC: Papers of Thomas Jefferson.