Note 75 — VII

That the Mississippi, the Missouri, and, indeed, most of the great rivers of the West, are annually enlarging, as progress is made in clearing and cultivating the regions drained by them, scarcely admits a doubt. Within the past thirty years, the width of the Mississippi has sensibly increased; its overflows are more frequent, while, by the diminution of obstructions, it would seem not to have become proportionally shallow. In 1750, the French settlements began upon the river above New-Orleans, and for twenty years the banks were cultivated without a levee. Inundation was then a rare occurrence: ever since, from year to year, the river has continued to rise, and require higher and stronger embankments. A century hence, if this phenomenon continues, what a magnificent spectacle will not this river present! How terrific its freshets! The immense forest of timber which lies concealed beneath its depths, as evinced by the great earthquakes of 1811, demonstrates that, for centuries, the Mississippi has occupied its present bed.—Flagg.