A substance supposed to be Pumice, found floating on the Missisipi, has induced a conjecture, that there is a volcano on some of its waters; and as these are mostly known to their sources, except the Missouri, our expectations of verifying the conjecture would of course be led to the mountains which divide the waters of the Mexican Gulf from those of the South Sea; but no volcano having ever yet been known at such a distance from the sea, we must rather suppose that this floating substance has been erroneously deemed Pumice.[1]
QUERY V.
ITS CASCADES AND CAVERNS?[2]
The only remarkable cascade in this[3] country, is that of the
Falling Spring in Augusta. It is a water of James River,
where it is called Jackson's River, rising in the Warm Spring
mountains, about 20 miles Southwest of the Warm Spring, and
flowing from that valley. About three quarters of a mile from
its source, it falls over a rock 200 feet into the valley below.
The sheet of water is broken in its breadth by the rock in two
or three places, but not at all in its height. Between the sheet
- ↑ 2. Epoques, 91, 112.
- ↑ See Map No. 1, App. iv.
- ↑ Bouguer mentions a cascade of two or three hundred toises height of the Bogota, a considerable river passing by Santa Fé. The cataract is vertical, and is about 15 or 16 leagues below Santa Fé.—Bouguer, xci. Buffon mentions one of 300 feet at Terni, in Italy. 1. Epoques, 470.
