Special Message

To the Senate of the United States:

I transmit to the Senate, for consideration with a view to its ratification, a copy of a treaty between the United States and Great Britain, signed yesterday at London, providing for the reference to an arbiter of the question of difference between the United States and Great Britain concerning the northwest line of water boundary between the United States and the British possessions in North America. It is expected that the original of the convention will be forwarded by the steamer which leaves Liverpool to-morrow. Circumstances, however, to which it is unnecessary to advert, in my judgment make it advisable to communicate to the Senate the copy referred to in advance of the arrival of the original instrument.

ANDREW JOHNSON.