To this may be added the testimony of the present Vice President of the United States, Hon. Richard M. Johnson, of Kentucky. In a speech before the U.S. Senate, Feb. 1, 1820, (National Intelligencer, April 20, 1820) he says: "In the District of Columbia, containing a population of 30,000 souls, and probably as many slaves as the whole territory of Missouri, THE POWER OF PROVIDING FOR THEIR EMANCIPATION RESTS WITH CONGRESS ALONE. Why, then, this heart-rending sympathy for the slaves of Missouri, and this cold insensibility, this eternal apathy, towards the slaves in the District of Columbia?"

It is quite unnecessary to add, that the most distinguished northern statesmen of both political parties, have always affirmed the power of Congress to abolish slavery in the District: President Van Buren in his letter of March 6, 1836, to a committee of gentlemen in North Carolina, says, "I would not, from the light now before me, feel myself safe in pronouncing that Congress does not possess the power of abolishing slavery in the District of Columbia." This declaration of the President is consistent with his avowed sentiments touching the Missouri question, on which he coincided with such men as Daniel D. Tompkins, De Witt Clinton, and others, whose names are a host.[A] It is consistent, also, with his recommendation in his late message, in which, speaking of the District, he strongly urges upon Congress "a thorough and careful revision of its local government," speaks of the "entire dependence" of the people of the District "upon Congress," recommends that a "uniform system of local government" be adopted, and adds, that "although it was selected as the seat of the General Government, the site of its public edifices, the depository of its archives, and the residence of officers entrusted with large amounts of public property, and the management of public business, yet it never has been subjected to, or received, that special and comprehensive legislation which these circumstances peculiarly demanded."

[A]: Mr. Van Buren, when a member of the Senate of New-York, voted for the following preamble and resolutions, which passed unanimously:—Jan 28th, 1820. "Whereas the inhibiting the further extension of slavery in the United States, is a subject of deep concern to the people of this state: and whereas, we consider slavery as an evil much to be deplored, and that every constitutional barrier should be interposed to prevent its further extension: and that the constitution of the United States clearly gives congress the right to require new states, not comprised within the original boundary of the United States, to make the prohibition of slavery a condition of their admission into the Union: Therefore,

"Resolved, That our Senators be instructed, and our members of Congress be requested, to oppose the admission as a state into the Union, of an territory not comprised as aforesaid, without making the prohibition of slavery therein an indispensable condition of admission."

The tenor of Mr. Tallmadge's speech on the right of petition, and of Mr. Webster's on the reception of abolition memorials, may be taken as universal exponents of the sentiments of northern statesmen as to the power of Congress to abolish slavery in the District of Columbia.

An explicit declaration, that an "overwhelming majority" of the present Congress concede the power to abolish slavery in the District, has just been made by Hon. Robert Barnwell Rhett, a member of Congress from South Carolina, in a letter published in the Charleston Mercury of Dec. 27, 1837. The following is an extract:

"The time has arrived when we must have new guaranties under the constitution, or the Union must be dissolved. Our views of the constitution are not those of the majority. AN OVERWHELMING MAJORITY think that by the constitution, Congress may abolish slavery in the District of Columbia—may abolish the slave trade between the States; that is, it may prohibit their being carried out of the State in which they are—and prohibit it in all the territories, Florida among them. They think, NOT WITHOUT STRONG REASONS, that the power of Congress extends to all of these subjects."

Direct testimony to show that the power of Congress to abolish slavery in the District, has always till recently been universally conceded, is perhaps quite superfluous. We subjoin, however, the following:

The Vice-President of the United States in his speech on the Missouri question, quoted above, after contending that the restriction of slavery in Missouri would be unconstitutional, declares, that the power of Congress over slavery in the District "COULD NOT BE QUESTIONED." In the speech of Mr. Smyth, of Va., also quoted above, he declares the power of Congress to abolish slavery in the District to be "UNDOUBTED."

Mr. Sutherland, of Penn., in a speech in the House of Representatives, on the motion to print Mr. Pinckney's Report, is thus reported in the Washington Globe, of May 9th, '36. "He replied to the remark that the report conceded that Congress had a right to legislate upon the subject in the District of Columbia, and said that SUCH A RIGHT HAD NEVER BEEN, TILL RECENTLY, DENIED."