The Writings of James Madison, comprising his Public Papers and his Private Correspondence, including his numerous letters and documents now for the first time printed, ed. Gaillard Hunt (New York: G.P. Putnam’s Sons, 1900). 9 vols. http://oll.libertyfund.org/titles/1933,
A 9 volume collection edited by Gaillard Hunt in 1900-10.
The text is in the public domain.