Article 3, Section 3, Clauses 1 and 2
General Laws and Liberties of New Plimouth Colony1671Hurst 70--71
3. Treason against the Person of our Soveraign Lord the King, the State and Common-wealth of England, shall be punished by death.
4. That whosoever shall Conspire and Attempt any Invasion, Insurrection, or Publick Rebellion against this Jurisdiction, or the Surprizal of any Town, Plantation, Fortification or Ammunition, therein provided for the safety thereof, or shall Treacherously and Perfidiously Attempt and Endeavour the Alteration and Subversion of the Fundamental Frame and Constitutions of this Government; every such Person shall be put to Death.
The Founders' Constitution
Volume 4, Article 3, Section 3, Clauses 1 and 2, Document 4
The University of Chicago Press
Hurst, James Willard. The Law of Treason in the United States: Collected Essays. Westport, Conn.: Greenwood Publishing Corp., 1971.
Easy to print version.