... gives title, by right of discovery, to the territory drained by that river and its tributaries, clearly gave to the Americans the domain to the lat. of 54° 40′ N., for the discovery of the Columbia River by Captain Gray, in 1792, was not disputed. In 1818 it was mutually agreed that each nation should equally enjoy the privileges of all the bays and harbors on that coast for ten years. This agreem...