A Treaty "providing for the more complete definition and demarcation of the international boundary between the United States and the Dominion of Canada," negotiated by Ambassador Bryce and Secretary Root, appointed Plenipotentiaries of the Governments of Great Britain and the United States, respectively, was signed at Washington on the 4th of June, 1908. The Treaty provides for parcelling the boundary line in eight sections, for the determination in each of which each Government "shall appoint, without delay, an expert geographer or surveyor to serve as Commissioner." Its first article prescribes with minuteness the procedure to be followed and the consideration to be given to former surveys and determinations of the boundary line "in the waters of Passamaquoddy Bay from the mouth of the St. Croix River to the Bay of Fundy." The second article defines similarly the task appointed to the Commissioners who shall determine the "line drawn along the middle of the River St. Croix from its mouth in the Bay of Fundy to its source." The third article instructs the Commissioners who shall fix the line from the source of the St. Croix to the St. Lawrence. The fourth deals in like manner with the next section of the line, from "the point of its intersection with the St. Lawrence River near the forty-fifth parallel of north latitude, as determined under articles I. and VI. of the Treaty of August 9, 1842, between Great Britain and the United States, and thence through the Great Lakes and communicating waterways to the mouth of Pigeon River, at the western shore of Lake Superior." The fifth pursues the line from "the mouth of Pigeon River to the northwestern-most point of the Lake of the Woods." The sixth traces the work to be done on the line from that point of the Lake of the Woods to the summit of the Rocky Mountains. The seventh relates to the section of boundary "along the forty-ninth parallel of north latitude, from the summit of the Rocky Mountains westward to the eastern shore of the Gulf of Georgia, as defined in article I. of the Treaty of June 15, 1846, between Great Britain and the United States and as marked by monuments along its course,"—for the renewing and completing of which monuments commissioners were appointed by concurrent action of the two Governments in 1902 and 1903. The eighth article has to do with the western terminal section of the task, carrying the boundary line "from the forty-ninth parallel of north latitude along the middle of the channel which separates Vancouver’s Island from the mainland and the Haro Channel and of Fuca’s Straits to the Pacific Ocean, as defined in article I. of the Treaty of June 15, 1846, between Great Britain and the United States, and as determined by the award made on October 21, 1872, by the Emperor of Germany as arbitrator. {70}