A discourse on the aborigines of the valley of the Ohio : in which the opinions of the conquest of that valley by the Iroquois, or Six Nations, in the seventeenth century, supported by Cadwallader Colden, of New York, Governor Pownal, of Massachusetts, Dr. Franklin, the Hon. De Witt Clinton, of New York, and Judge Haywood, of Tennessee, are examined and contested : to which are prefixed some remarks on the study of history / by Wm. Henry Harrison, of North Bend.