837,
by their chairman, Mr. Powell of Va., there is the following
declaration: "The Congress of the United States, has by the constitution
exclusive jurisdiction over the District, and has power upon this
subject (_slavery_,) as upon all other subjects of legislation, to
exercise _unlimited discretion_." Reports of Comms. 2d Sess. 19th Cong.
v. iv. No. 43. In December, 1831, the committee on the District, Mr.
Doddridge of Va., Chairman, reported, "That until the adjoining states
act on the subject, (_slavery_) it would be (not _unconstitutional_ but)
unwise and impolitic, if not unjust, for Congress to interfere." In
April, 1836, a special committee on abolition memorials reported the
following resolutions by their Chairman, Mr. Pinckney of South Carolina:
"Resolved, That Congress possesses no constitutional authority to
interfere in any way with the institution of slavery in any of the
states of this confederacy."

"Resolved, That Congress _ought not to interfere_ in any way with
slavery in the District of Columbia." "Ought not to interfere,"
carefully avoiding the phraseology of the first resolution, and thus in
effect conceding the constitutional power. In a widely circulated
"Address to the electors of the Charleston District," Mr. Pinkney is
thus denounced by his own constituents: "He has proposed a resolution
which is received by the plain common sense of the whole country as a
concession that Congress has authority to abolish slavery in the
District of Columbia."

3. IT HAS BEEN CONCEDED BY THE CITIZENS OF THE DISTRICT. A petition for
the gradual abolition of slavery in the District, signed by nearly
eleven hundred of its citizens, was presented to Congress, March 24,
1827. Among the signers to this petition, were Chief Justice Cranch,
Judge Van Ness, Judge Morsel, Prof. J.M. Staughton, and a large number
of the most influential inhabitants of the District. Mr. Dickson, of New
York, asserted on the floor of Congress in 1835, that the signers to
this petition owned more than half the property in the District. The
accuracy of this statement has never been questioned.

THIS POWER HAS BEEN CONCEDED BY GRAND JURIES OF THE DISTRICT. The grand
jury of the county of Alexandria, at the March term, 1802, presented the
domestic slaves trade as a grievance, and said, "We consider these
grievances demanding _legislative_ redress." Jan. 19, 1829, Mr.
Alexander, of Virginia, presented a representation of the grand jury in
t