There is, perhaps, no stream which presents a greater variety of feature than the Mississippi, or phenomena of deeper interest, whether we regard the soil, productions, and climate of its valley, its individual character and that of its tributaries, or {80} the outline of its scenery and course. The confluents of this vast stream are numerous, and each one brings a tribute of the soil through which it has roamed. The Missouri pours out its waters heavily charged with the marl of the Rocky Mountains, the saffron sands of the Yellow Stone, and the chalk of the White River; the Ohio holds in its floods the vegetable mould of the Alleghanies, and the Arkansas and Red Rivers bring in the deep-died alluvion of their banks. Each tributary mingles the spoils of its native hills with the general flood. And yet, after the contributions of so many streams, the remarkable fact is observed that its breadth and volume seem rather diminished than increased.[75] Above the embouchure of the Missouri, fifteen hundred miles from the Mexican gulf, it is broader than at New-Orleans, with scarce one tenth of its waters; and at the foot of St. Anthony's Falls its breadth is but one third less. This forms a striking characteristic of the Western rivers, and owes, perhaps, its origin partially to the turbid character of their waters: as they approach their outlet they augment in volume, and depth, and impetuosity of current, but contract their expanse. None, however, exhibit these features so strikingly as the grand central stream; and while, for its body of water, it is the narrowest stream known, it is charged with heavier solutions and has broader alluvions than any other. The depth of the stream is constantly varying. At New-Orleans it exceeds one hundred feet. Its width is from half of one mile to two miles; the breadth of its valley {81} from six miles to sixty; the rapidity of its current from two miles to four; its mean descent six inches in a mile, and its annual floods vary from twelve feet to sixty, commencing in March and ending in May. Thus much for Statistics.