Excerpt:

“THE FOURTH class comprises the following miscellaneous powers:

1. A power “to promote the progress of science and useful arts, by securing, for a limited time, to authors and inventors, the exclusive right to their respective writings and discoveries. ”The utility of this power will scarcely be questioned. The copyright of authors has been solemnly adjudged, in Great Britain, to be a right of common law. The right to useful inventions seems with equal reason to belong to the inventors. The public good fully coincides in both cases with the claims of individuals. The States cannot separately make effectual provisions for either of the cases, and most of them have anticipated the decision of this point, by laws passed at the instance of Congress. 
2. “To exercise exclusive legislation, in all cases whatsoever, over such district (not exceeding ten miles square) as may, by cession of particular States and the acceptance of Congress, become the seat of the government of the United States; and to exercise like authority over all places purchased by the consent of the legislatures of the States in which the same shall be, for the erection of forts, magazines, arsenals, dockyards, and other needful buildings. 

   ”The indispensable necessity of complete authority at the seat of government, carries its own evidence with it. It is a power exercised by every legislature of the Union, I might say of the world, by virtue of its general supremacy. Without it, not only the public authority might be insulted and its proceedings interrupted with impunity; but a dependence of the members of the general government on the State comprehending the seat of the government, for protection in the exercise of their duty, might bring on the national councils an imputation of awe or influence, equally dishonorable to the government and dissatisfactory to the other members of the Confederacy. This consideration has the more weight, as the gradual accumulation of public improvements at the stationary residence of the government would be both too great a public pledge to be left in the hands of a single State, and would create so many obstacles to a removal of the government, as still further to abridge its necessary independence. The extent of this federal district is sufficiently circumscribed to satisfy every jealousy of an opposite nature. And as it is to be appropriated to this use with the consent of the State ceding it; as the State will no doubt provide in the compact for the rights and the consent of the citizens inhabiting it; as the inhabitants will find sufficient inducements of interest to become willing parties to the cession; as they will have had their voice in the election of the government which is to exercise authority over them; as a municipal legislature for local purposes, derived from their own suffrages, will of course be allowed them; and as the authority of the legislature of the State, and of the inhabitants of the ceded part of it, to concur in the cession, will be derived from the whole people of the State in their adoption of the Constitution, every imaginable objection seems to be obviated. The necessity of a like authority over forts, magazines, etc. , established by the general government, is not less evident. The public money expended on such places, and the public property deposited in them, requires that they should be exempt from the authority of the particular State. Nor would it be proper for the places on which the security of the entire Union may depend, to be in any degree dependent on a particular member of it. All objections and scruples are here also obviated, by requiring the concurrence of the States concerned, in every such establishment.

3. “To declare the punishment of treason, but no attainder of treason shall work corruption of blood, or forfeiture, except during the life of the person attained. ”As treason may be committed against the United States, the authority of the United States ought to be enabled to punish it. But as new-fangled and artificial treasons have been the great engines by which violent factions, the natural offspring of free government, have usually wreaked their alternate malignity on each other, the convention have, with great judgment, opposed a barrier to this peculiar danger, by inserting a constitutional definition of the crime, fixing the proof necessary for conviction of it, and restraining the Congress, even in punishing it, from extending the consequences of guilt beyond the person of its author. 
4. “To admit new States into the Union; but no new State shall be formed or erected within the jurisdiction of any other State; nor any State be formed by the junction of two or more States, or parts of States, without the consent of the legislatures of the States concerned, as well as of the Congress. ”In the articles of Confederation, no provision is found on this important subject. Canada was to be admitted of right, on her joining in the measures of the United States; and the other COLONIES, by which were evidently meant the other British colonies, at the discretion of nine States. The eventual establishment of NEW STATES seems to have been overlooked by the compilers of that instrument. We have seen the inconvenience of this omission, and the assumption of power into which Congress have been led by it. With great propriety, therefore, has the new system supplied the defect. The general precaution, that no new States shall be formed, without the concurrence of the federal authority, and that of the States concerned, is consonant to the principles which ought to govern such transactions. The particular precaution against the erection of new States, by the partition of a State without its consent, quiets the jealousy of the larger States; as that of the smaller is quieted by a like precaution, against a junction of States without their consent. 
5. “To dispose of and make all needful rules and regulations respecting the territory or other property belonging to the United States, with a proviso, that nothing in the Constitution shall be so construed as to prejudice any claims of the United States, or of any particular State. ”This is a power of very great importance, and required by considerations similar to those which show the propriety of the former. The proviso annexed is proper in itself, and was probably rendered absolutely necessary by jealousies and questions concerning the Western territory sufficiently known to the public. 
6. “To guarantee to every State in the Union a republican form of government; to protect each of them against invasion; and on application of the legislature, or of the executive (when the legislature cannot be convened), against domestic violence.”