Our information as to the country is very incomplete; we have taken measures to obtain it full as to the settled part, which I hope to receive in time for Congress. The boundaries, which I deem not admitting question, are the high lands on the western side of the Mississippi enclosing all its waters, the Missouri of course, and terminating in the line drawn from the northwestern point of the Lake of the Woods to the nearest source of the Mississippi, as lately settled between Great Britain and the United States. We have some claims, to extend on the sea coast westwardly to the Rio Norte or Bravo, and better, to go eastwardly to the Rio Perdido, between Mobile and Pensacola, the ancient boundary of Louisiana. These claims will be a subject of negotiation with Spain, and if, as soon as she is at war, we push them strongly with one hand, holding out a price in the other, we shall certainly obtain the Floridas, and all in good time. In the meanwhile, without waiting for permission, we shall enter into the exercise of the natural right we have always insisted on with Spain, to wit, that of a nation holding the upper part of streams, having a right of innocent passage through them to the ocean. We shall prepare her to see us practise on this, and she will not oppose it by force.

Objections are raising to the eastward against the vast extent of our boundaries, and propositions are made to exchange Louisiana, or a part of it, for the Floridas. But, as I have said, we shall get the Floridas without, and I would not give one inch of the waters of the Mississippi to any nation, because I see in a light very important to our peace the exclusive right to its navigation, and the admission of no nation into it, but as into the Potomac or Delaware, with our consent and under our police. These federalists see in this acquisition the formation of a new confederacy, embracing all the waters of the Mississippi, on both sides of it, and a separation of its eastern waters from us. These combinations depend on so many circumstances which we cannot foresee, that I place little reliance on them. We have seldom seen neighborhood produce affection among nations. The reverse is almost the universal truth. Besides, if it should become the great interest of those nations to separate from this, if their happiness should depend on it so strongly as to induce them to go through that convulsion, why should the Atlantic States dread it? But especially why should we, their present inhabitants, take side in such a question? When I view the Atlantic States, procuring for those on the eastern waters of the Mississippi friendly instead of hostile neighbors on its western waters, I do not view it as an Englishman would the procuring future blessings for the French nation, with whom he has no relations of blood or affection. The future inhabitants of the Atlantic and Mississippi States will be our sons. We leave them in distinct but bordering establishments. We think we see their happiness in their union, and we wish it. Events may prove it otherwise; and if they see their interest in separation, why should we take side with our Atlantic rather than our Mississippi descendants? It is the elder and the younger son differing. God bless them both, and keep them in union, if it be for their good, but separate them, if it be better. The inhabited part of Louisiana, from Point Coupée to the sea, will of course be immediately a territorial government, and soon a State. But above that, the best use we can make of the country for some time, will be to give establishments in it to the Indians on the east side of the Mississippi, in exchange for their present country, and open land offices in the last, and thus make this acquisition the means of filling up the eastern side, instead of drawing off its population. When we shall be full on this side, we may lay off a range of States on the western bank from the head to the mouth, and so, range after range, advancing compactly as we multiply.

This treaty must of course be laid before both Houses, because both have important functions to exercise respecting it. They, I presume, will see their duty to their country in ratifying and paying for it, so as to secure a good which would otherwise probably be never again in their power. But I suppose they must then appeal to the nation for an additional article to the Constitution, approving and confirming an act which the nation had not previously authorized. The Constitution has made no provision for our holding foreign territory, still less for incorporating foreign nations into our Union. The executive in seizing the fugitive occurrence which so much advances the good of their country, have done an act beyond the Constitution. The Legislature in casting behind them metaphysical subtleties, and risking themselves like faithful servants, must ratify and pay for it, and throw themselves on their country for doing for them unauthorized, what we know they would have done for themselves had they been in a situation to do it. It is the case of a guardian, investing the money of his ward in purchasing an important adjacent territory; and saying to him when of age, I did this for your good; I pretend to no right to bind you: you may disavow me, and I must get out of the scrape as I can: I thought it my duty to risk myself for you. But we shall not be disavowed by the nation, and their act of indemnity will confirm and not weaken the Constitution, by more strongly marking out its lines.

We have nothing later from Europe than the public papers give. I hope yourself and all the western members will make a sacred point of being at the first day of the meeting of Congress; for vestra res regitur.

Accept my affectionate salutations and assurances of esteem and respect.

TO THE SECRETARY OF STATE.

Monticello, August 25, 1803.

Dear Sir,—Your two favors of the 18th and 20th were received on the 21st. The letters of Livingston and Monroe were sent to Mr. Gallatin as you proposed. That of Simpson to Mr. Smith for the purpose of execution. All of them will be returned. Thornton's, Clarke's, Charles's, Picnau's, Appleton's, Davis's, Newton's, and Dericure's letters are now enclosed. With respect to the impressment of our seamen I think we had better propose to Great Britain to act on the stipulations which had been agreed to between that Government and Mr. King, as if they had been signed. I think they were, that they would forbid impressments at sea, and that we should acquiesce in the search in their harbors necessary to prevent concealments of their citizens. Mr. Thornton's attempt to justify his nation in using our ports as cruising stations on our friends and ourselves, renders the matter so serious as to call, I think, for answer. That we ought, in courtesy and friendship, to extend to them all the rights of hospitality is certain, that they should not use our hospitality to injure our friends or ourselves is equally enjoined by morality and honor. After the rigorous exertions we made in Genet's time to prevent this abuse on his part, and the indulgencies extended by Mr. Adams to the British cruisers even after our pacification with France, by ourselves also from an unwillingness to change the course of things as the war was near its close, I did not expect to hear from that quarter charges of partiality. In the Mediterranean we need ask from no nation but the permission to refresh and repair in their ports. We do not wish our vessels to lounge in their ports. In the case at Gibraltar, if they had disapproved, our vessels ought to have left the port. Besides, although nations have treated with the piratical States, they have not, in malice, ever been considered as entitled to all the favors of the laws of nations. Thornton says they watch our trade only to prevent contraband. We say it is to plunder under pretext of contraband, for which, though so shamefully exercised, they have given us no satisfaction but by confessing the fact in new modifying their courts of Admiralty. Certainly the evils we experience from it, and the just complaints which France may urge, render it indispensable that we restrain the English from abusing the rights of hospitality to their prejudice as well as our own.

Graham's letter manifests a degree of imprudence, which I had not expected from him. His pride has probably been hurt at some of the regulations of that court, and has had its part in inspiring the ill temper he shows. If you understand him as serious in asking leave to return, I see no great objection to it. At the date of your letter you had not received mine on the subject of Dovieux's claim. I still think the limits therein stated reasonable. I think a guinea a day till he leaves Washington would be as low an allowance as we could justify, and should not be opposed to anything not exceeding the allowance to Dawson. Fix between these as you please. I suppose Monroe will touch on the limits of Louisiana only incidentally, inasmuch as its extension to Perdido curtails Florida, and renders it of less worth. I have used my spare moments to investigate, by the help of my books here, the subject of the limits of Louisiana. I am satisfied our right to the Perdido is substantial, and can be opposed by a quibble on form only; and our right westwardly to the Bay of St. Bernard, may be strongly maintained. I will use the first leisure to make a statement of the facts and principles on which this depends. Further reflection on the amendment to the Constitution necessary in the case of Louisiana, satisfies me it will be better to give general powers, with specified exceptions, somewhat in the way stated below. Mrs. Madison promised us a visit about the last of this month. I wish you could have met with General Page here, whom, with his family, I expect in a day or two, and will pass a week with us. But in this consult your own convenience, as that will increase the pleasure with which I shall or may see you here. Accept my affectionate salutations and constant attachment.

P. S. Louisiana, as ceded by France to the United States, is made a part of the United States. Its white inhabitants shall be citizens, and stand, as to their rights and obligations, on the same footing with other citizens of the United States in analogous situations.