Note 2 — EIGHTH CONGRESS.—FIRST SESSION.

Boundaries of the Province of Louisiana, as contained in a paper communicated by Mr. Jefferson to Congress.

The precise boundaries of Louisiana, westward of the Mississippi, though very extensive, are at present involved in some obscurity. Data are equally wanting to assign with precision its northern extent. From the source of the Mississippi, it is bounded eastwardly, by the middle of the channel of that river, to the thirty-first degree of latitude; thence, it is asserted, upon very strong grounds, that, according to its limits, when formerly possessed by France, it stretches to the east as far, at least, as the river Perdido, which runs into the bay of Mexico, eastward of the river Mobile.

It may be consistent with the view of these notes to remark, that Louisiana, including the Mobile settlements, was discovered and peopled by the French, whose monarchs made several grants of its trade, in particular to Mr. Crozat, in 1712, and some years afterwards, with his acquiescence, to the well-known company projected by Mr. Law. This company was relinquished in the year 1731. By a secret convention, on the 3d November, 1762, the French Government ceded so much of the province as lies beyond the Mississippi, as well as the island of New Orleans, to Spain; and, by the treaty of peace which followed in 1763, the whole territory of France and Spain, eastward of the middle of the Mississippi, to the Iberville, thence, through the middle of that river and the lakes Maurepas and Pontchartrain to the sea, was ceded to Great Britain. Spain having conquered the Floridas from Great Britain, during our Revolutionary war, they were confirmed to her by the Treaty of Peace of 1784. By the Treaty of St. Ildefonso, of the 1st of October, 1800, His Catholic Majesty promises and engages on his part to cede back to the French Republic, six months after the full and entire execution of the conditions and stipulations therein contained, relative to the Duke of Parma, “the colony or province of Louisiana, with the same extent that it actually has in the hands of Spain, that it had when France possessed it, and such as it ought to be after the treaties subsequently entered into between Spain and other States.” This treaty was confirmed and enforced by that of Madrid, of the 21st of March, 1801. From France it passed to us by the Treaty of the 30th of April last, with a reference to the above clause as descriptive of the limits ceded.