[LINCOLN, Abraham (1809-1865)]. Message of the President of the United States, transmitting a copy of a treaty between the United States and her Britannic Majesty for the suppression of the African slave trade. Senate, 37th Congress, 2nd Session. Washington, D.C., 10 June 1862. 8vo (222 x 133 mm). Pamphlet (disbound top edge dampstained throughout). One of the pivotal and highly debated provisions in the treaty revolved around the authority of British naval vessels to halt, board, and inspect American ships. This issue had persisted since the British independently abolished the African slave trade in 1807. By 1862, no longer accommodating the Southern states, Lincoln had the freedom to authorize British inspections of American vessels. The African slave trade quickly diminished and ceased by the end of the Civil War. Pages four through fifteen print the treaty in its entirety.