Though the Federal Government is one of enumerated powers, its powers are not described in detail, and from the very beginning it has been construed to possess not simply those powers that are specifically or expressly given it, but also those necessary and proper for the effective exercise of such express powers. After enumerating the various powers that Congress is to possess, the Constitution declares2 "[The Congress shall have power] to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this Constitution in the Government of the United States or in any department or officer thereof." Furthermore it will be noticed that in the Tenth Amendment, above quoted, the powers reserved to the States or to the people are not those expressly delegated to the United States, but simply those not delegated. This is significant in view of the fact that in the corresponding section in the Articles of Confederation the word "expressly" is carefully inserted.3

2 Art. I, Sec. 8.