A manufactory of this hydraulic cement or water-lime is now established on the bank of the canal, on a scale capable of supplying the United States with this much-valued material for all works in contact with water or exposed to moisture; the nature of this cement being to harden in the water; the grout used on the locks of the canal is already harder than the stone used in their construction.
After passing through the stratum which was commonly called the water-lime, about ten feet in thickness, the workmen came to a more compact mass of primitive gray limestone, which, however, was not penetrated to any great depth. In many parts of the excavation masses of a bluish white flint and hornstone were found enclosed in or incrusting the fetid limestone. And from the large quantities of arrow-heads and other rude formations of this flint stone, it is evident that it was made much use of by the Indians in forming their weapons for war and hunting; in one place a magazine of arrow-heads was discovered, containing many hundreds of these rude implements, carefully packed together and buried below the surface of the ground.
The existence of iron ore in considerable quantities was exhibited in the progress of the excavation of the canal, by numerous highly-charged chalybeate springs that gushed out, and continued to flow during the time that the rock was exposed, chiefly in the upper strata of limestone.—Louisville Directory for 1835.—Flagg.
[7] A circumstance, too, which adds not a little of interest to the spot, is the old Indian tradition that here was fought the last battle between their race and the former dwellers in Kentucky—the white mound-builders—in which the latter were exterminated to a man. True or false, vast quantities of human remains have, at low stages of the Ohio, been found upon the shores of Sandy Island, one mile below, and an extensive graveyard once existed in the vicinity of Shipping-port.—Flagg.
[8] Kentucke is said to have a similar meaning.—Flagg.
[9] Ohio is thought by some philologists to be a corruption of the Iroquois word, "Ohionhiio," meaning "beautiful river," which the French rendered as La Belle Rivière; see also Cuming's Tour, in our volume iv, p. 92, note 49.—Ed.
[10] At the age of twenty-five, Henry M. Shreve (1785-1854) was captain of a freight boat operating on the Ohio. In 1814 he ran the gauntlet of the British batteries at New Orleans, and carried supplies to Fort St. Phillip. The following year, in charge of the "Enterprise" he made the first successful steamboat trip from New Orleans to Louisville. Later he constructed the "Washington," making many improvements on the Fulton model. Fulton and Livingstone brought suit against him but lost in the action. May 24, 1824, at the instigation of J. C. Calhoun, then secretary of war, Congress appropriated seventy-five thousand dollars (not $105,000, as Flagg says) for the purpose of removing obstructions from the Ohio and Mississippi rivers. As early as 1821, Shreve had invented a device for removing snags and sawyers from river beds. But it was not until after two years' fruitless trials with a scheme devised by John Bruce of Kentucky, that Barbour, at Calhoun's suggestion, appointed Shreve superintendent of improvements on Western rivers (December 10, 1826). This position he held until September 11, 1841, when he was dismissed for political reasons. In the face of discouraging opposition Shreve constructed (1829) with government aid the snagboat "Heleopolis" with which he later wrought a marvellous improvement in navigation on the Ohio and Mississippi. From 1833 to 1838 he was engaged in removing the Red River "raft" for a distance of a hundred and sixty miles, thus opening that important river for navigation. For a good biography of Shreve, see the Democratic Review, xxii (New York, 1848), pp. 159-171, 241-251. A fair estimate of the importance of his work can be gained from the following statistics; from 1822-27 the loss from snags alone, of property on the Ohio and Mississippi rivers, including steam and flat-boats and their cargoes, amounted to $1,362,500; the like loss from 1827-32 was reduced to $381,000, although the volume of business had greatly increased.—Ed.
[11] The "Baltimore" (73 tons) was built at Pittsburg in 1828; the "Roanoke" (100 tons), at Wheeling in 1835. It is reported that from 1831 to 1833, of the sixty-six steamboats which went out of service, twenty-four were snagged, fifteen burned, and five destroyed by collision with other boats. See James Hall, Notes on the Western States (Philadelphia, 1838), p. 239.—Ed.
[12] The keel-boat Hindoo, with merchandise to the amount of $50,000, is a late instance.—Flagg.
[13] Brown's Island, two miles and a half long by half a mile at its greatest width, is located six or seven miles above Steubenville, Ohio, following the course of the river.—Ed.