Note 114 — Chapter II · The Power of Congress to Establish Postoffices
Reading edition
4 Opinions of the Attorneys General, 349 (1844). If a passenger takes the letters without the knowledge of the carrier, the latter is not liable and no penalty is incurred by the person sending the letters; but if the practice is known by public advertisement the carrier will be liable and also the person employing agents to carry his mail. U. S. v. Hall, 26 Fed. Cas. 75 (1844).