hereafter may arise between two or more States concerning boundary,
jurisdiction, or any other cause whatever; which authority shall always
be exercised in the manner following: Whenever the legislative or
executive authority, or lawful agent of any State in controversy with
another, shall present a petition to Congress, stating the matter in
question, and praying for a hearing, notice thereof shall be given by
order of Congress to the legislative or executive authority of the other
State in controversy, and a day assigned for the appearance of the
parties by their lawful agents, who shall then be directed to appoint,
by joint consent, commissioners or judges to constitute a court for