It was in the year 1763 that Louisiana was ceded, by France, to Spain. In the year 1800, it was yielded back to France, under Napoleon, by a secret article in the treaty of Sn. Ildefonso. It had now become a matter of infinite moment to the United States that the great Republic should have undisputed command of the Mississippi, from its source to its mouth. President Jefferson instructed our Minister at Paris, Robert Livingston, to negotiate with the French Government for the purchase of Louisiana. France was then at war with England. The British fleet swept triumphantly all the seas. Napoleon, conscious that he could not protect Louisiana from British arms, consented to the sale. We are informed that on the 10th of April, 1803, he summoned two of his ministers in council, and said to them: "I am fully sensible of the value of Louisiana; and it was my wish to repair the error of the French diplomatists who abandoned it in 1763. I have scarcely recovered it before I run the risk of losing it. But if I am obliged to give it up it shall cost more to those who force me to part with it, than to those to whom I yield it. The English have despoiled France of all her Northern possessions in America, and now they covet those of the South. I am determined that they shall not have the Mississippi. Although Louisiana is but a trifle compared with their vast possessions in other parts of the globe, yet, judging from the vexation they have manifested on seeing it return to the power of France, I am certain that their first object will be to obtain possession of it. "They will probably commence the war in that quarter. They have twenty vessels in the Gulf of Mexico, and our affairs in St. Domingo are daily getting worse, since the death of Le Clere. The conquest of Louisiana might be easily made, and I have not a moment to lose in putting it out of their reach. I am not sure but that they have already began an attack upon it. Such a measure would be in accordance with their habits; and in their place I should not wait. I am inclined, in order to deprive them of all prospect of ever possessing it, to cede it to the United States. Indeed I can hardly say I cede it, for I do not yet possess it. And if I wait but a short time, my enemies may leave me nothing but an empty title to grant to the Republic I wish to conciliate. They only ask for one city of Louisiana; but I consider the whole colony as lost. And I believe that in the hands of this rising power, it will be more useful to the political and even the commercial interests of France, than if I should attempt to retain it. Let me have both of your opinions upon this subject." One of the ministers, Barbe Marbois, cordially approved of the plan of "cession." The other opposed it. After long deliberation, the conference was closed, without Napoleon making known his decision. The next day he sent for Barbe Marbois, and said to him: