The beach or sloping part of the immediate bank of the Ohio, throughout its whole extent, is of rather gradual ascent, and covered with timber a considerable distance below high-water mark. The average rapidity of the current of the Ohio is about two and a half miles per hour, and the descent of its surface nine inches per mile, as estimated by Dr. Drake of Cincinnati. The annual inundations happen in the spring. The range between extreme high and low water, in the upper part of the river, is more than 60 feet; but below, where it is not confined by high banks, it is much less. [pg091]
About the falls of Ohio, the cane, (myegia macrosperma of Persoon,) begins to be seen, and increases in quantity thence westward to the Mississippi. The "Cave Inn Rock," or "House of Nature," which we have before mentioned, is an immense cavern penetrating horizontally into a stratum of compact limestone, which forms the river bank for some distance above Golconda in Illinois. Its entrance is a large and regular arch, placed immediately on the brink of the river, and a similar form is preserved in some degree through its whole extent. The Battery Rock is a high mural precipice of the same stratum, running in a straight line, and forming the northern bank of the river which washes its base. The face of this precipice is smooth and naked, and it is surmounted {40} by a heavy growth of timber. This limestone is compact, entirely horizontal in its position, and filled with organic remains. It is traversed by veins containing sulphuret of lead; and at several places near Golconda, this is accompanied by fluat of lime, in beautiful yellow and violet-coloured crystals. Fluat of lime is also found disseminated in small and irregular masses throughout the rock. At Golconda, six miles below the cave, a coarse gray flinty sandstone is found, extending some distance to the west. This rock forms broad hills on the Kentucky side, between the Cumberland and Tennessee rivers; where it abounds in iron ore of several kinds. Perhaps these hills ought to be considered as a spur from the Cumberland hills. At the mouth of the Tennessee river, is a locality of the columnar argillaceous oxide of iron, which rises from the surface in pyramidal and columnar masses, somewhat resembling the cypress knees.
An extensive tract of land between the Tennessee and[pg092] Mississippi rivers, included in the recent purchase from the Cherokees,[056] is rocky and broken, abounding in ores of iron and lead, and probably some other minerals. We have seen a specimen of sulphuret of antimony, in possession of an inhabitant, who being a sort of alchymist, greatly delighting in mystery, thought it imprudent to reveal the secret of its particular locality. It is to be hoped, future and more minute examinations than we had the opportunity of making, may hereafter detect valuable mineral depositions in this tract.
The confluence of the Ohio and Mississippi, is in latitude 37° 22′ 9″ north, according to the observations of Mr. Ellicott, and in longitude 88° 50′ 42″ west, from Greenwich.[057] The lands about the junction of these two great rivers are low, consisting of recent alluvion, and covered with dense forests. At the time of our journey, the spring floods having subsided in the Ohio, this quiet and gentle river {41} seemed to be at once swallowed up, and lost in the rapid and turbulent current of the Mississippi. Floods of the Mississippi, happening when the Ohio is low, occasion a reflux of the waters of the latter, perceptible at Fort Massac, more than thirty miles above. It is also asserted, that the floods in the Ohio occasion a retardation in the current of the Mississippi, as far up as the Little Chain, ten miles below Cape Girardeau.[058] The navigation of the Mississippi above the mouth of the Ohio, also that of the Ohio, is usually obstructed for a part of the winter by large masses of floating ice. The boatmen[pg093] observe that soon after the ice from the Ohio enters the Mississippi, it becomes so much heavier by arresting the sands, always mixed with the waters of that river, that it soon sinks to the bottom. After ascending the Mississippi about two miles, we came to an anchor, and went on shore on the eastern side. The forests here are deep and gloomy, swarming with innumerable mosquitoes, and the ground overgrown with enormous nettles. There is no point near the confluence of the Ohio and Mississippi, from which a distant prospect can be had. Standing in view of the junction of these magnificent rivers, meeting almost from opposite extremities of the continent, and each impressed with the peculiar character of the regions from which it descends, we seem to imagine ourselves capable of comprehending at one view all that vast region between the summits of the Alleghanies and of the Rocky Mountains, and feel a degree of impatience at finding all our prospects limited by an inconsiderable extent of low muddy bottom lands, and the unrelieved, unvaried, gloom of the forest.
Finding it necessary to renew the packing of the piston in the steam-engine, which operation would require some time, most of the gentlemen of the {42} party were dispersed on shore in pursuit of their respective objects, or engaged in hunting. Deer, turkeys, and beaver are still found in plenty in the low grounds, along both sides of the Mississippi; but the annoyance of the mosquitoes and nettles preventing the necessary caution and silence in approaching the haunts of these animals, our hunting was without success.
We were gratified to observe many interesting plants, and among them several of the beautiful family of the[pg094] orchidæ,[059] particularly the orchis spectabile, so common in the mountainous parts of New England.
The progress of our boat against the heavy current of the Mississippi, was of necessity somewhat slow. Steam-boats in ascending are kept as near the shore as the depth of water will admit; and ours often approached so closely as to give such of the party as wished, an opportunity to jump on shore. On the first of June, several gentlemen of the party went on shore, six miles below the settlement of Tyawapatia bottom, and walked up to that place through the woods. They passed several Indian encampments, which appeared to have been recently tenanted. Under one of the wigwams they saw pieces of honey-comb, and several sharpened sticks, that had been used to roast meat upon: on a small tree near by was suspended the lower jaw-bone of a bear. Soon after leaving these they came to another similar camp, where they found a Shawanee Indian and his squaw, with four children, the youngest lashed to a piece of board, and leaned against a tree.
The Indian had recently killed a deer, which they purchased of him for one dollar and fifty cents—one-third more than is usually paid to white hunters. They afterwards met with another encampment, where were several families. These Indians have very little acquaintance with the English language, and appeared reluctant to use the few words they {43} knew. The squaws wore great numbers[pg095] of trinkets, such as silver arm-bands and large earrings. Some of the boys had pieces of lead tied in various parts of the hair. They were encamped near the Mississippi, for the purpose of hunting on the islands. Their village is on Apple Creek, ten miles from Cape Girardeau.
June 2d. As it was only ten miles to Cape Girardeau, and the progress of the boat extremely tedious, several of the party, taking a small supply of provisions, went on shore, intending to walk to that place.
Above the settlement of Tyawapatia, and near Cape à la Bruche,[060] is a ledge of rocks, stretching across the Mississippi, in a direct line, and in low water forming a serious obstacle to the navigation. These rocks are of limestone, and mark the commencement of the hilly country on the Mississippi. Here the landscape begins to have something of the charm of distant perspective. We seem released from the imprisonment of the deep monotonous forest, and can occasionally overlook the broad hills of Apple Creek, and the Au Vaise,[061] or Muddy river of Illinois, diversified with a few scattered plantations, and some small natural meadows. [pg096]