Note 112 — Chapter XXXI · VOYAGE FROM THE CANTONMENT OF LEAVENWORTH TO PORTSMOUTH, ON THE MOUTH OF THE OHIO RIVER, FROM MAY 18TH TO JUNE 20TH

See our volume xv, p. 173. The theory there advanced is, that the land between the Mississippi and Missouri "would appear rather to have subsided from the waters of a quiet ocean than to have been brought down from above."—Ed.