The country which France surrendered to Spain was of vast but indefinite extent. Added to her other North-American colonies, it gave to Spain control of more than half the continent. She continued in possession of Louisiana until the year 1800, when, during some European negotiations, Bonaparte concluded a treaty at San Ildefonso with Charles IV., by which the entire territory was retroceded to France. When the First Consul acquired Louisiana, he appeared to look forward to a career of peace,--an impression greatly strengthened by the conclusion of the treaty of Amiens the ensuing year. He added to his prestige as a ruler when he regained from Spain the American empire which the Bourbons had weakly surrendered thirty- seven years before, and he expected a large and valuable addition to the trade and resources of France from the vast colonial possession. The formal transfer of so great a territory on a distant continent was necessarily delayed; and, before the Captain- general of France reached New Orleans in 1803, the Spanish authorities, still in possession, had become so odious to the inhabitants of the western section of the Union by their suspension of the right of deposit at New Orleans, that there was constant danger of an armed collision. Mr. Ross of Pennsylvania, an able and conservative statesman, moved in the Senate of the United States that the government be instructed to seize New Orleans. Gouverneur Morris, a statesman of the Revolutionary period, then a senator from New York, seconded Mr. Ross. So intense was the feeling among the people that a large army of volunteers could have been easily raised in the Mississippi valley to march against New Orleans; but the prudence of Mr. Jefferson restrained every movement that might involve us in a war with Spain, from which nothing was to be gained, and by which every thing would be risked. THE PURCHASE OF LOUISIANA.