Whoever will look at a map of the United States, will observe that Louisiana lies on both sides of the Mississippi river, and that the States of Arkansas and Mississippi lie on the right and left banks of this great stream--eight hundred miles of whose lower course is thus controlled by these three States, unitedly inhabited by hardly as many white people as inhabit the city of New York. Observe, then, the country drained by this river and its affluents, commencing with Missouri on its west bank and Kentucky on its east bank. There are nine or ten powerful States, large portions of three or four others, several large Territories--in all, a country as large as all Europe, as fine as any under the sun, already holding many more people than all the revolted States, and powerful regions of the earth. Does any one suppose that these powerful States--this great and energetic population--will ever make a peace that will put the lower course of this single and mighty national outlet to the sea in the hands of a foreign government far weaker than themselves? If there is any such person he knows little of the past history of mankind, and will perhaps excuse us for reminding him that the people of Kentucky, before they were constituted a State, gave formal notice to the federal government, when Gen. Washington was President, that if the United States did not require Louisiana they would themselves conquer it. The mouths of the Mississippi belong, by the gift of God, to the inhabitants of its great valley. Nothing but irresistible force can disinherit them.