any country under Heaven. Nothing but the most profound ignorance could lead any one to assert the contrary. Mr. Thompson had a colleague in his recent exhibitions in London, who seemed to have taken interludes in all Mr. T's speeches. In one of these, that colleague had said, he knew of his own knowledge a case, in which a man had given $500 for a slave, in order to burn him alive! Mr. Thompson, no doubt knew, that even on the supposition that such a monster was to be found, he was liable in every part of the United States, to be hanged as any other murderer. Slavery was bad enough anywhere; but to say that it was more unmitigated in America than in the West Indies, where emigration had always been necessary to keep up the numbers, while in America, the slave population increased faster than any part of the human race, was a gross exaggeration, or a proof of the profoundest ignorance. To say that the slavery of the District of Columbia was the most horrid that ever existed, when it, along with the whole of the slavery on that continent, was so hedged about by human laws, that in every one of the states cruelty to the slave was punished as an offence against the state; the killing of a slave was punished every where with death; while in all ages, and nearly in all countries where slavery has existed besides, the master was not only the exclusive judge of the treatment of his slave, but the absolute disposer of his life, which he could take away at will; these statements can proceed only from unpardonable ignorance, or a purpose to mislead. As to the abolition of slavery in the District of Columbia, there might, at first sight, appear to be some grounds of accusation; but yet, when the subject was considered in all its bearings, so many pregnant, if not conclusive, reasons presented themselves against interference, that though much attention had been bestowed upon it for many years, the result had been that nothing was done. It was to be recollected that the whole District of Columbia was only ten miles square; and that it was surrounded by states in which slavery was still legalized. It was thus clear, that though slavery were abolished in Columbia, not an individual of the six thousand slaves now within its bounds, would necessarily be relieved of his fetters. Were an abolition bill to pass the House of Representatives to-day, the whole six thousand could be removed to a neighboring slave state before it could be taken up in the Senate to-morrow. It was, therefore, worse than idle to say so much on what could never be a practical question. Again; the District of Columbia had been ceded to the General Government by Maryland and Virginia, both slaveholding states, for national purposes; but this would never have been done had it been contemplated that Congress would abolish slavery within its bounds, and thus establish a nucleus of anti-slavery agitation in the heart of their territory. The exercise of such a power, therefore, on