To the Senate of the United States:
In accordance with the resolution of the Senate of the 12th instant, that "the President of the United States be, and he is hereby, advised to accept the proposal of the British Government accompanying his message to the Senate dated 10th June, 1846, for a convention to settle boundaries, etc., between the United States and Great Britain west of the Rocky or Stony Mountains," a convention was concluded and signed on the 15th instant by the Secretary of State, on the part of the United States, and the envoy extraordinary and minister plenipotentiary of Her Britannic Majesty, on the part of Great Britain.
This convention I now lay before the Senate, for their consideration with a view to its ratification.
JAMES K. POLK.
James K. Polk, Special Message Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/201009