It is a regulation of law that pilots are provided for all boats, descending the falls--a descent, by the way, which can only be made on the Indiana side. When this officer came on board, the owners thought best to go by land to Shippingport. I had less at stake in its safety than they, yet felt a desire to witness this novel mode of descent; nor did the result disappoint me. Standing on the deck, or rather flat roof of the ark, the view was interesting and exciting. The first point at which the mass of water breaks was the principal point of danger, as there is here a powerful reflux, or eddy current, on the right hand, while the main velocity of the current drives the vessel in a direction which, if not checked by the large sweeps, would inevitably swamp it. The object is to give this check, and shoot her into the eddy water. This was done. The excitement ceased in a few moments, and we passed the rest of the way with less exertion to the men, and got down the remainder of the falls in perfect safety. All this danger to the growing commerce of the west, is now remedied by the Louisville canal, which, by a work of but two miles in length, which holds the relative position of a string to the bow, connects the navigable waters above and below those falls, and permits all river craft of the largest burden to pass. It was about the falls of the Ohio, or a little above, that I first saw the gay and noisy paroquet, or little parrot of the west; a gregarious bird, whose showy green and yellow plumage makes it quite an object to be noticed and remembered in a passage on the lower Ohio. One of these birds, which had been wounded, was picked up out of the river, a few miles below the falls. It was evident, from the occurrence of this species, and other features in the natural history of the country, that we were now making a rapid southing. The red-bud, the papaw, the buckeye, and the cucumber tree, had all introduced themselves to notice, among the forest species, below Pittsburgh; although they are all, I think, actually known to extend a little north of that latitude; and we now soon had added to the catalogue, the pecan and cypress, and the cane, with the constant attendant of the latter, the green briar. I had no opportunity to examine the pecan, until we reached the mouth of the Wabash and Shawneetown, where I went on a shooting excursion with a young Kentuckian, who gave me the first practical exhibition of bringing down single pigeons and other small game with the rifle, by generally striking the head or neck only. I had heard of this kind of shooting before, and witnessed some capital still shots, but here was a demonstration of it, in brush and brier--catching a sight as best one could. The ball used on these occasions was about the size of a large buckshot.