Note 181 — LETTER IV

Whitestone is the name given by Lewis and Clark to the stream afterwards known as the Vermilion—see our volume vi, p. 87, note 31; for the Big Sioux see ibid., p. 85, note 30; Floyd's Creek comes in just below the bluff of the same name, where Sergeant Charles Floyd of the Lewis and Clark expedition was buried—see our volume v, p. 91, note 56; the Boyer (Roger) is noted in our volume xxiv, p. 105, note 83; the Maringoin is probably intended for the Moingoina (Des Moines), a western tributary of the Mississippi; see our volume vi, p. 73, note 24, for the Nishnabotna; and v, p. 37, note 5, for the Nodaway (Nedowa).—Ed.