when a country is invaded, and two hostile armies are set in martial array, the commanders of both armies have power to emancipate all the slaves in the invaded territory. Nor is this a mere theoretic statement. The history of South America shows that the doctrine has been carried into practical execution within the last thirty years. Slavery was abolished in Columbia, first, by the Spanish General Morillo, and, secondly, by the American General Bolivar. It was abolished by virtue of a military command given at the head of the army, and its abolition continues to be law to this day. It was abolished by the laws of war, and not by municipal enactments; the power was exercised by military commanders, under instructions, of course, from their respective Governments. And here I recur again to the example of Gen. Jackson. What are you now about in Congress? You are about passing a grant to refund to Gen. Jackson the amount of a certain fine imposed upon him by a Judge, under the laws of the State of Louisiana. You are going to refund him the money, with interest; and this you are going to do because the imposition of the fine was unjust. And why was it unjust? Because Gen. Jackson was acting under the laws of war, and because the moment you place a military commander in a district which is the theatre of war, the laws of war apply to that district. I might furnish a thousand proofs to show that the pretensions of gentlemen to the sanctity of their municipal institutions under a state of actual invasion and of actual war, whether servile, civil or foreign, is wholly unfounded, and that the laws of war do, in all such cases, take the precedence. I lay this down as the law of nations. I say that military authority takes, for the time, the place of all municipal institutions, and slavery among the rest; and that, under that state of things, so far from its being true that the States where slavery exists have the exclusive management of the subject, not only the President of the United States, but the Commander of the Army, has power to order the universal emancipation of the slaves. I have given here more in detail a principle which I have asserted on this floor before now, and of which I have no more doubt than that you, sir, occupy that chair. I give it in its development, in order that any gentleman from any part of the Union may, if he thinks proper, deny the truth of the position, and may maintain his denial; not by indignation, not by passion and fury, but by sound and sober reasoning from the laws of nations and the laws of war. And if my position can be answered and refuted, I shall receive the refutation with pleasure; I shall be glad to listen to reason, aside, as I say, from indignation and passion. And if, by the force of reasoning, my understanding can be convinced, I here pledge myself to recant what I have asserted.