Closely connected with this subject to which Mr. Webster’s remarks, during the debate, related, was another which excited some warm discussion—the topic of slavery—and the effect of its existence or non-existence in different States. Kentucky and Ohio were taken for examples, and the superior improvement and population of Ohio were attributed to its exemption from the evils of slavery. This was an excitable subject, and the more so because the wounds of the Missouri controversy in which the North was the undisputed aggressor, were still tender. Mr. Hayne from South Carolina answered with warmth and resented as a reflection upon the Slave States this disadvantageous comparison. Mr. Benton of Missouri followed on the same side, and in the course of his remarks said, “I regard with admiration, that is to say, with wonder, the sublime morality of those who cannot bear the abstract contemplation of slavery, at the distance of five hundred or a thousand miles off.” This allusion to the Missouri controversy, and invective against the free States for their part in it, by Messrs. Hayne and Benton, brought a reply from Mr. Webster, showing what their conduct had been at the first introduction of the slavery topic in the Congress of the United States, and that they totally refused to interfere between master and slave in any way whatever. But the topic which became the leading feature of the whole debate, and gave it an interest which cannot die, was that of nullification—the assumed right of a State to annul an act of Congress—then first broached in the Senate—and in the discussion of which Mr. Webster and Mr. Hayne were the champion speakers on opposite sides—the latter voicing the sentiments of the Vice-President, Mr. Calhoun. This turn in the debate was brought about, by Mr. Hayne having made allusion to the course of New England during the war of 1812, and especially to the assemblage known as the Hartford Convention, and to which designs unfriendly to the Union had been attributed. This gave Mr. Webster an opportunity to retaliate, and he referred to the public meetings which had just then taken place in South Carolina on the subject of the tariff, and at which resolves were passed, and propositions adopted significant of resistance to the act; and consequently of disloyalty to the Union. He drew Mr. Hayne into their defence and into an avowal of what has since obtained the current name of “_Nullification_.” He said, “I understand the honorable gentleman from South Carolina to maintain, that it is a right of the State Legislature to interfere, whenever, in their judgment, this government transcends its constitutional limits, and to arrest the operation of its laws,*** that the States may lawfully decide for themselves, and each State for itself, whether, in a given case, the act of the general government transcends its powers,*** that if the exigency of the case, in the opinion of any State government require it, such