Gentlemen tell us we ought not so closely to scrutinize the conduct of the Legislature of South Carolina. I am, said Mr. L., far from scrutinizing in this instance the conduct of that State. I respect the people of South Carolina. Their situation may, perhaps, be such as in a great measure to justify their conduct, though I am far from saying that I approve it. But when we lay a tax on the importation of slaves, it is a sufficient reply to such remarks to say that the tax is not laid exclusively on slaves admitted into South Carolina. It does not therefore apply to South Carolina alone. That State has an undoubted right to admit the importation; but Congress have also an undoubted right of taxing them. The resolution, therefore, does not encroach on the rights of that State. The United States and South Carolina form two bodies politic, both of which are possessed of constitutional rights. To the one belongs the right of importing, to the other, the right of taxation; and this last right may be exercised without involving any censure of the State of South Carolina. The only necessary inquiry is, whether the proposed tax will be oppressive or unjust. I believe it will be universally agreed that an imported article worth four hundred dollars will not be taxed high compared with other articles, when it pays a duty of ten dollars. As to the constitutionality of the tax not a word need be said; that has not and cannot be disputed. WEDNESDAY, February 15. _Importation of Slaves._ The House again resolved itself into a Committee of the Whole, on Mr. BARD’s resolution to impose a tax of ten dollars on every slave imported into the United States; the debate on which occupied the remainder of the sitting. Mr. LUCAS supported, and Mr. HOLLAND opposed the resolution. Mr. EARLE moved that the committee rise and report progress. His reason for this motion was, that, from information received from South Carolina, on which he placed much reliance, it was expected that the Legislature would meet in April, and would then repeal the act admitting the importation of slaves. Should the committee rise, he would move a postponement of the consideration of the resolution to the first Monday in May. Mr. GREGG.--I hope the motion for the committee to rise will prevail; and that any further proceeding on this subject will be postponed for the present. It has been said by the gentleman from South Carolina who made the motion, and I have heard it mentioned by others, that a considerable ferment has been excited in that State by the passage of the law authorizing the importation of slaves, and that it is highly probable the Legislature, at its next session, will repeal that law. That session, it is expected, will be held in April, the Governor having it in contemplation to convene the Legislature at that time for the purpose of submitting to their consideration the proposed amendment to the constitution.