Whereas neither that point of the highlands lying due north from the source of the river St. Croix, and designated in the former treaty of peace between the two powers as the northwest angle of Nova Scotia, nor the northwesternmost head of Connecticut River has yet been ascertained; and whereas that part of the boundary line between the dominions of the two powers which extends from the source of the river St. Croix directly north to the above-mentioned northwest angle of Nova Scotia; thence along the said highlands which divide those rivers that empty themselves into the river St. Lawrence from those which fall into the Atlantic Ocean, to the northwesternmost head of Connecticut River; thence down along the middle of that river to the forty-fifth degree of north latitude; thence by a line due west on said latitude until it strikes the river Iroquois, or Cataraquy, has not yet been surveyed, it is agreed that for these several purposes two commissioners shall be appointed, sworn, and authorized to act exactly in the manner directed with respect to those mentioned in the next preceding article, unless otherwise specified in the present article. The said commissioners shall meet at St. Andrews, in the Province of New Brunswick, and shall have power to adjourn to such other place or places as they shall think fit. The said commissioners shall have power to ascertain and determine the points above mentioned in conformity with the provisions of the said treaty of peace of 1783, and shall cause the boundary aforesaid, from the source of the river St. Croix to the river Iroquois, or Cataraquy, to be surveyed and marked according to the said provisions. The said commissioners shall make a map of the said boundary, and annex to it a declaration under their hands and seals certifying it to be the true map of the said boundary, and particularizing the latitude and longitude of the northwest angle of Nova Scotia, of the northwesternmost head of Connecticut River, and of such other points of the said boundary as they may deem proper; and both parties agree to consider such map and declaration as finally and conclusively fixing the said boundary. And in the event of the said two commissioners differing, or both or either of them refusing, declining, or willfully omitting to act, such reports, declarations, or statements shall be made by them or either of them, and such reference to a friendly sovereign or state shall be made in all respects as in the latter part of the fourth article is contained, and in as full a manner as if the same was herein repeated. _Note IV_.