25 U.S.C. § 171 to 173
Section 171, R.S. §2111, related to imposition of a penalty for sending seditious messages intending to contravene a United States treaty or law.
Section 172, R.S. §2112, related to imposition of a penalty for carrying seditious messages intending to contravene a United States treaty or law.
Section 173, R.S. §2113, related to imposition of a penalty for corresponding with foreign nations intending to incite Indians to war.