A Book of the United States. Various
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to the brink, feels his attention imperceptibly riveted to the novel and striking phenomenon before him, and at this moment is apt either to overrate or to underrate the magnitude of the Fall. It is not easy to erect a standard of comparison; and the view requires to be studied, in order to attain a just conception and appreciation of its grandeur and its beauties. The ear is at first stunned by the incessant roar, and the eye bewildered in the general view. In proportion as these become familiarized, we seize upon the individual features of the landscape, and are enabled to distinguish between the gay and the sombre, the bold and the picturesque, the harsh and the mellow traits, which, like the deep contrasted shades of some high wrought picture, contribute to give effect to the scene.
‘It was some time before I could satisfy myself of the accuracy of the accredited measurements of the height of the Fall, and not until after I had made repeated visits, and spent a considerable time in the abyss below. There appears a great disproportion between the height and the width of the falling sheet, but the longer I remained, the more magnificent it appeared to me; and hence it is, that with something like a feeling of disappointment, on my first arrival, I left the Falls after a visit of two days, with an impression of the scene which every thing I had previously read, had failed to create. At the time of my visit, the wind drove the floating ice out of Lake Erie, with the drift-wood of its tributary rivers, and these were constantly precipitated over the Falls, but we were not able to discover any vestiges of them in the eddies below. Immediately in front of the sheet of falling water on the American side, there was also an enormous bank of snow, of nearly an hundred feet in height, which the power of the sun had not yet been fierce enough to dissolve, and which, by giving an Icelandic character to the landscape, produced a fine effect. It appeared to me to owe its accumulation to the falling particles of frozen spray.
‘What has been said by Goldsmith, and repeated by others, respecting the destructive influence of the rapids15 above to ducks and other water fowl, is only an effect of the imagination. So far from being the case, a wild duck is often seen to swim down the rapid to the brink of the Falls, and then fly out, and repeat the descent, seeming to take a delight in the exercise. Neither are small land-birds affected on flying over the Falls, in the manner that has been stated. I observed the blue-bird and the wren, which had already made their annual visit to the banks of the Niagara, frequently fly within one or two feet of the brink, apparently delighted with the gift of their wings, which enabled them to sport over such frightful precipices without danger. We are certainly not well pleased to find that some of the wonderful stories we have read of the Falls, during boyhood, do not turn out to be the truth; but, at the same time, a little attention is only necessary to discover that many interesting facts and particulars remain unnoticed, which fully compensate for others that have been over-strained or misstated. Among these, the crystalline appearances disclosed among the prostrate ruins, and the geological character of the Fall itself, are not the least interesting.
Bridge and Rapids above the Falls.
‘The scenes where nature has experienced her greatest convulsions, are always the most favorable for acquiring a knowledge of the internal structure of the earth. The peaks of the highest mountains, and the depths of the lowest ravines, present the greatest attractions to the geologist. Hence this cataract, which has worn its way for a number of miles, and to a very great depth, through the stony crust of the earth, is no less interesting for the geological facts it discloses, than for the magnificence of its natural scenery. The chain of highlands, called the Ridge, originates in Upper Canada, and running parallel with the south shore of Lake Ontario, forms a natural terrace, which pervades the western counties of New-York, from north to south, affording, by its unbroken chain, and the horizontal position of its strata, the advantages of a natural road, and terminates in an unexplored part of the county of Oswego, or thereabout. It is in crossing this ridge, that the falls of the Niagara, of the Gennessee, and of the Oswego rivers, all running into Lake Ontario, are produced; together with those of an infinite number of smaller streams and brooks. Through this, the Niagara has cut its way for a distance of seven miles, and to a depth of more than two hundred feet, disclosing the number, order of stratification, and mineral character, of the different strata of secondary rocks, of which it is composed.
‘These rocks, (sandstone, slate, and limestone,) however their properties may be found modified by future discoveries, will probably be found, with a proper allowance for local formations and disturbances, to pervade all that section of country, which lies between the Niagara and Seneca rivers, between lakes Ontario and Seneca, and between the Alleghany river and the south shore of Lake Erie, as general boundaries. All this section of country appears to be underlayed by a stratum of red sandstone, such as appears at the Gennessee Falls, but which is imbedded at various depths, as the country happens to be elevated above, or depressed below the level of the Niagara stratum, in which no inclination is visible. No order of stratification could have been effected by nature, which would have afforded greater facilities to the wasting effects of falling water, so visible as these Falls. The slate which separates the calcareous from the sandstone rock, by a stratum of nearly forty feet in thickness, is continually fretting away, and undermining the superincumbent stratum of limestone, which is thus precipitated in prodigious masses into the abyss below. The most considerable occurrence of this kind, that has recently taken place, is that of the Table Rock,16 on the Canadian shore, which fell during the summer of 1818, disclosing a number of those crystallized substances, which have already been alluded to. By these means, the Falls, which are supposed by the most intelligent visitors to have been anciently seated at Lewiston, have progressed seven miles up the river, cutting a trench through the solid rock, which is about half a mile in width, and two hundred feet in depth, exclusive of what is hidden by the water. The power, capable of effecting such a wonderful change, still exists, and may be supposed to operate with undiminished activity. The wasting effects of the water, and the yielding nature of the rocks, remain the same, and manifest the slow process of a change, at the present period, as to position, height, form, division of column, and other characters, which form the outlines of the great scene; and this change is probably sufficiently rapid in its operation, if minute observations were taken, to imprint a different character upon the falls, at the close of every century.’
The Great Falls of the Missouri are the grandest in all North America, those of Niagara excepted, and though inferior to these in volume of water, depth of descent, and awful grandeur, yet they are far more diversified and beautiful. These Falls are within sixty geographical miles of the easternmost range of the Rocky Mountains. Here the river, two hundred and eighty yards, or eight hundred and forty feet wide, is pressed in by a perpendicular cliff on the left, one hundred feet high, and extending for a mile up the river; on the right, the bluff, or high steep bank, is also perpendicular for three hundred yards above the falls. For ninety or one hundred yards from the left cliff, the water falls in one smooth even sheet over a precipice of eighty-seven feet eight inches, according to Captain Lewis; but ninety-eight feet, according to Cass, and Captain Clarke. The remaining part of the river precipitates itself with a more rapid current; but being received as it falls by the irregular and projecting rocks below, forms a splendid prospect of perfectly white foam, two hundred yards in length, and eighty in perpendicular elevation. This spray is dissipated into a thousand different shapes; sometimes flying up in columns of fifteen or twenty feet, which are then oppressed by larger masses of the white foam, on all which the sun impresses the brightest colors of the rainbow. As it rises from the fall, it beats with fury against a ledge of rocks extending across the river, at one hundred and fifty yards from the precipice. From the perpendicular cliff on the north, to the distance of one hundred and twenty yards, the rocks rise only a few feet above the surface of the water; and when the river is high, the stream finds a passage across them; but between the southern extremity of this ledge and the perpendicular cliff on the south, the whole body of water runs with great rapidity. At the distance of three hundred yards is a second abutment of solid perpendicular rock, sixty feet high, projecting at right angles from the small plain on the north for one hundred and thirty-four yards into the river. Below this, the Missouri regains its usual breadth of three hundred yards, but there is a continued succession of rapids and cascades. At the second grand fall, the river, four hundred yards wide, precipitates itself, for the space of three hundred yards, to a depth of nineteen feet perpendicular,