One can hardly pass these broken eminences, with the knowledge that they tally in their calcareous structure and position with the rock formation of the Missouri state border, lying immediately west of them, without regarding them as the apparent monuments of some ancient geological change, which affected a very wide space of country north of their position. A barrier of this nature, which should link the Tennessee and Missouri coasts, at Grand Tower, would have converted into an inland sea the principal area of the present states of Illinois, Indiana, and Southern Ohio. The line of separation in this latitude is not great. It constitutes the narrowest point between the opposing rock formations of the east and west shores, so far as the latter rise through and above the soil.
I was still in a floating Monongahela ark as we approached this coast of cliffs. The day was one of the mildest of the month of June, and the surface of the water was so still and calm that it presented the appearance of a perfect mirror. Our captain ordered alongside the skiff, which served as his jolly boat, and directed the men to land me at the Great Cave. Its wide and yawning mouth gave expectations, however, which were not realized. It closes rapidly as it is pursued into the rock, and never could have afforded a safe shelter for gangs of robbers whose haunts were known. Tradition states, on this point, that its mouth was formerly closed and hid by trees and foliage, by which means the unsuspecting voyagers with their upward freight were waylaid. We overtook the slowly floating ark before it had reached Hurricane Island, and the next land we made was at Smithfield, at the mouth of the Cumberland. While here, several discharged Tennessee militiamen, or volunteers from the still unfinished Indian war in the south, landed on their way home. They were equipped after the fashion of western hunters, with hunting shirts and rifles, and took a manifest pride in declaring that they had fought under "old Hickory"—a term which has, since that era, become familiar to the civilized world. I here first saw that singular excrescence in the vegetable kingdom called cypress knees. The point of land between the mouth of the Cumberland and Ohio, was a noted locality of the cypress tree. This tree puts up from its roots a blunt cone, of various size and height, which resembles a sugar loaf. It is smooth, and without limb or foliage. An ordinary cone or knee would measure eight inches in diameter, and thirty inches high. It would seem like an abortive effort of the tree to put up another growth. The paroquet was exceedingly abundant at this place, along the shores, and in the woods. They told me that this bird rested by hooking its upper mandible to a limb. I made several shooting excursions into the neighbouring forests, and remember that I claimed, in addition to smaller trophies of these daily rambles, a shrike and a hystrix.
At length a keel boat came in from the Illinois Saline, commanded by a Captain Ensminger—an Americo-German—a bold, frank man, very intelligent of things relating to river navigation. With him I took passage for St. Louis, in Missouri, and we were soon under weigh, by the force of oars, for the mouth of the Ohio. We stopped a short time at a new hamlet on the Illinois shore, which had been laid out by some speculators of Cincinnati, but was remarkable for nothing but its name. It was called, by a kind of bathos in nomenclature, "America." I observed on the shores of the river at this place, a very recent formation of pudding-stone, or rather a local stratum of indurated pebbles and clay, in which the cementing ingredient was the oxyde of iron. Chalybeate waters percolated over and amongst this mass. This was the last glimpse of consolidated matter. All below, and indeed far above, was alluvial, or of recent origin. Nothing could exceed the fertile character of the soil, or its rank vegetation and forest growth, as we approached the point of junction; but it was a region subject to periodical overflows, the eras of which were very distinctly marked by tufts and bunches of grass, limbs, and other floating matter which had been lodged and left in the forks and branches of trees, now fifteen or twenty feet above our heads. It was now the first day of July, and I felt the most intense interest as we approached and came to the point of confluence. I had followed the Ohio, in all its sinuosities, a thousand miles. I had spent more than three months in its beautiful and varied valley; and I had something of the attachment of an old friend for its noble volume, and did not well like to see it about to be lost in the mighty Mississippi. Broad and ample as it was, however, bringing in the whole congregated drain of the western slopes of the Alleghanies and the table lands of the Great Lakes, the contest was soon decided. The stream had, at that season, sunk down to its summer level, and exhibited a transparent blue volume. The Mississippi, on the contrary, was swelled by the melting snows of the Rocky Mountains, and was in its vernal flood. Coming in at rather an acute angle, it does not immediately arrest the former, but throws its waters along the Tennessee shores. It runs with prodigious velocity. Its waters are thick, turbid, and replete with mingled and floating masses of sand and other comminuted rock and floating vegetation, trees, and rubbish. For miles the line of separation between the Ohio and Mississippi waters was visible by its colour; but long before it reaches the Iron Banks, the modern site of Memphis—the Father of Waters, as it is poetically, not literally, called—had prevailed, and held on its way to make new conquests of the St. Francis, the White, the Arkansas, and other noble streams.
Our captain, although he had no lack of self-confidence, did not seem to be in haste to grapple with this new foe, by plunging at once into the turbid stream, but determined to try it next morning. This left me, a good part of the day, in a position where there was not much to reward inquiry. I fished awhile from the boat's side, but was rewarded with nothing besides a gar, a kind of sword, or rather billed fish, which appears to be provided with this appendage to stir up its food or prey from a muddy bottom. Its scales and skin are nearly as hard and compact as a shark's, and its flesh is equally valueless. It is at this point that the town of Cairo has since been located. There were, at the period mentioned, several arks and flat-boats lying on the higher banks, where they had been moored in high water. These now served as dwellings, and by cutting doors in their sides they formed rude groceries and provision stores. Whatever else, however, was to be seen at so low and nascent a point, the mosquito, as night came on, soon convinced us that he was the true magnate of those dominions.
The next morning at an early hour our stout-hearted commander put his boatmen in motion, and turned his keel into the torrent; but such was the velocity of the water, and its opacity and thick turbidness, that I thought we should have been precipitated down stream, and hurled against sunken logs. Those who have ascended this stream in the modern era of steamboats, know nothing of these difficulties. It seemed impossible to stem the current. A new mode of navigation, to me at least, was to be tried, and it was evidently one which the best practised and stoutest-hearted men by no means relished. These boats are furnished with a plank walk on each side, on which slats are nailed to give a foothold to the men. Each man has a pole of ash wood about 16 feet long, with a wooden knob at the head to rest against the shoulder, and a blunt point at the other end shod with iron. Planting these upon the bottom near shore, with their heads facing down stream, the men bend all their force upon them, propelling the boat by their feet in the contrary direction. This is a very laborious and slow mode of ascent, which has now been entirely superseded on the main rivers by the use of steam.
Such is the fury and velocity of the current, that it threatens at every freshet to tear down and burst asunder its banks, and run lawless