1st. _The Orleans_--the first boat built at Pittsburg, owned by and constructed under the superintendence of Mr. Fulton. Sailed from Pittsburg in October, 1811, and arrived at her destination, Natchez, about the 1st January, 1812. She ran between New Orleans and Natchez about two years, making her voyages to average seventeen days; was wrecked near Baton Rouge, where she sunk on the upward bound passage; 400 tons burthen. 2d. _The Comet_--owned by Samuel Smith; built at Pittsburg by Daniel French; stern-wheel and vibrating cylinder; on French's patent granted in 1809. The Comet made a voyage to Louisville in the summer of 1813; and descended to New Orleans in the Spring of 1814; made two voyages to Natchez, and was sold; the engine put up in a cotton gin; 45 tons burthen. 3d. The _Vesuvius_--built at Pittsburg by Fulton, and owned by a company of gentlemen belonging to New York and New Orleans. Sailed from New Orleans in the Spring of 1814, commanded by Captain Frank Ogden. She was then employed some months between New Orleans and Natchez, under the command of Captain Clemmont, who was succeeded by Captain John DeHart; shortly after she took fire, near the city of New Orleans and burned to the water's edge; having a valuable cargo on board. She was afterwards raised and built upon at New Orleans. She has since been in the Louisville trade, and has lately been sold to a company at Natchez; 390 tons burthen. 4th. The _Enterprise_--built at Brownsville, Pennsylvania, on the Monongahela, by Daniel French, on his patent, and owned by a company at that place. She made two voyages to Louisville in the summer of 1814, under the command of Captain J. Gregg. On the first of December she took in a cargo of ordinance stores at Pittsburg, and sailed for New Orleans, commanded by Captain H. M. Shreve, and arrived at New Orleans on the 14th of the same month. She made one voyage to the Gulf of Mexico as a cartel; one voyage to the rapids of Red River with troops; nine voyages to Natchez; set out for Pittsburgh on the 6th May, and arrived at Shippingport on the 30th, (25 days out,) being the first steamboat that ever arrived at that port from New Orleans. From thence she proceeded on to Pittsburgh, and the command was given to Captain D. Wooley, who lost her about twelve months after in Rock harbor at Shippingport; 45 tons burthen. 5th. _Etna_--built at Pittsburg, and owned by the same company as the _Vesuvius_; sailed from Pittsburg for New Orleans in March, 1815, under the command of Captain A. Gale, and arrived in April following; continued in the Natchez trade. Was then commanded by Captain R. De Hart, who made six voyages in her to Louisville; and is now commanded by Captain A. Gale in the same trade.