Southern members of Congress, in the recent discussions, have conceded the power of a contingent abolition in the District, by suspending it upon the consent of the people. Such a doctrine from declaimers like Messrs. Alford, of Georgia, and Walker, of Mississippi, would excite no surprise; but that it should be honored with the endorsement of such men as Mr. Rives and Mr. Calhoun, is quite unaccountable. Are attributes of sovereignty mere creatures of contingency? Is delegated authority mere conditional permission? Is a constitutional power to be exercised by those who hold it, only by popular sufferance? Must it lie helpless at the pool of public sentiment, waiting the gracious troubling of its waters? Is it a lifeless corpse, save only when popular “consent” deigns to puff breath into its nostrils? Besides, if the consent of the people of the District be necessary, the consent of the whole people must be had—not that of a majority, however large. Majorities, to be authoritative, must be legal—and a legal majority without legislative power, or right of representation, or even the electoral franchise, would be truly an anomaly! In the District of Columbia, such a thing as a majority in a legal sense is unknown to law. To talk of the power of a majority, or the will of a majority there, is mere mouthing. A majority? Then it has an authoritative will—and an organ to make it known—and an executive to carry it into effect—Where are they? We repeat it—if the consent of the people of the District be necessary, the consent of every one is necessary—and universal consent will come only with the Greek Kalends and a “perpetual motion.” A single individual might thus perpetuate slavery in defiance of the expressed will of a whole people. The most common form of this fallacy is given by Mr. Wise, of Virginia, in his speech, February 16, 1835, in which he denied the power of Congress to abolish slavery in the District, unless the inhabitants owning slaves petitioned for it!! Southern members of Congress at the present session ring changes almost daily upon the same fallacy. What! pray Congress to use a power which it has not? “It is required of a man according to what he hath,”