"Be it enacted by the General Assembly, That a tract of country, not
exceeding ten miles square, or any lesser quantity, to be located within
the limits of the State, and in any part thereof; as Congress may, by
law, direct, shall be, and the same is hereby forever ceded and
relinquished to the Congress and Government of the United States, in
full and absolute right, and exclusive jurisdiction, as well of soil, as
of persons residing or to reside thereon, pursuant to the tenor and
effect of the eighth section of the first article of the government of
the constitution of the United States."

But were there no provisos to these acts? The Maryland act had _none_.
The Virginia act had this proviso: "Sect. 2. Provided, that nothing
herein contained, shall be construed to vest in the United States any
right of property in the soil, or to affect the rights of individuals
_therein_, otherwise than the same shall or may be transferred by such
individuals to the United States."

This specification touching the soil was merely definitive and
explanatory of that clause in the act of cession, "_full and absolute
right_." Instead of restraining the power of Congress on _slavery_ and
other subjects, it even gives it freer course; for exceptions to _parts_
of a rule, give double confirmation to those parts not embraced in the
exceptions. If it was the _design_ of the proviso to restrict
congressional action on the subject of _slavery_, why is the _soil
alone_ specified? As legal instruments are not paragons of economy in
words, might not "John Doe," out of his abundance, and without spoiling
his style, have afforded an additional word--at least a hint--that
slavery was _meant_, though nothing was said about it?

But again, Maryland and Virginia, in their acts of cession, declare them