"The Triton crieth, 'Who cometh now from shore?' Neptune replieth, ''Tis the old Commodore. Long has it been since I saw him before. In the year '75 from Columbia he came, The pride of the Briton, on ocean to tame. * * * * * "'But now he comes from western woods, Descending slow, with gentle floods, The pioneer of a mighty train, Which commerce brings to my domain.'" But Neptune and the Triton had no further occasion to exchange notes of astonishment upon the appearance of river-built ships on the ocean. The "St. Clair" was the first and last experiment of the sort. Late in the nineties, the United States Government tried building a torpedo-boat at Dubuque for ocean service, but the result was not encouraging. Year after year the steamboats multiplied, not only on the rivers of the West, but on those leading from the Atlantic seaboard into the interior. It may be said justly that the application of steam to purposes of navigation made the American people face fairly about. Long they had stood, looking outward, gazing across the sea to Europe, their sole market, both for buying and for selling. But now the rich lands beyond the mountains, inviting settlers, and cut up by streams which offered paths for the most rapid and comfortable method of transportation then known, commanded their attention. Immigrants no longer stopped in stony New England, or in Virginia, already dominated by an aristocratic land-owning class, but pressed on to Kentucky, Ohio, Tennessee, and Illinois. As the lands filled up, the little steamers pushed their noses up new streams, seeking new markets. The Cumberland, and the Tennessee, the Missouri, the Arkansas, the Red, the Tombigbee, and the Chattahoochee were stirred by the churning wheels, and over-their forests floated the mournful sough of the high-pressure exhaust. In 1840, a count kept at Cairo, showed 4566 vessels had passed that point during the year. By 1848, a "banner" year, in the history of navigation on the Mississippi, traffic was recorded thus: 25 vessels plying between Louisville, New Orleans and Cincinnati 8,484 tons 7 between Nashville and New Orleans 2,585 tons 4 between Florence and New Orleans 1,617 tons 4 in St. Louis local trade 1,001 tons 7 in local cotton trade 2,016 tons River "tramps" and unclassified 23,206 tons It may be noted that in all the years of the development of the Mississippi shipping, there was comparatively little increase in the size of the individual boats. The "Vesuvius," built in 1814, was 480 tons burthen, 160 feet long, 28.6 feet beam, and drew from five to six feet. The biggest boats of later years were but little larger. [Illustration: THE MISSISSIPPI PILOT]