Brooks: Diplomacy and the Borderlands of the Arkansas River shall be found to fall North or South of Latitude 42, then the Line shall run from the said Source due South or North, as the case may be, till it meets the said Parallel of Latitude 42, and thence along the said Parallel to the South Sea: all the Islands in the Sabine and the said Bed and Arkansas Rivers, throughout the Course thus described, to belong to the United- States; but the use of the Waters and the navigation of the Sabine to the Sea, and of the said Rivers, Roxo and Arkansas, throughout the extent of the said Boundary, on their respective Banks, shall be common to the respective inhabitants of both Nations. The Two High Contracting Parties agree to cede and renounce all their rights, claims and pretensions to the Territories described by the said Line: that is to say. The United States hereby cede to His Catholic Majesty, and renounce forever, all their rights, claims, and pretensions to the Territories lying West and South of the above described Line; and, in like manner, His Catholic Majesty cedes to the said United-States, all his rights, claims, and preten- sions to any Territories, and East and North of the said Line, and, for himself, his heirs and successors, renounces all claim to the said Territories forever. AR. 4. To fix this Line with more precision, and to place the Land marks which shall designate exactly the limits of both Nations, each of the Contracting Parties shall appoint a Commissioner, and a Sur- veyor, who shall meet before the termination of one year from the date of the Ratification of this Treaty, at Nachitoches, on the Red River, and proceed to run and mark the said Line from the mouth of the Sabine to the Red River, and from the Red River to the River Arkansas, and to ascertain the Latitude of the source of the said River Arkansas in conformity to what is above agreed upon and stipulated, and the Line of Latitude 42. to the South Sea: they shall make out plans and keep Journals of their proceedings, and the result agreed upon by them shall be considered as part of this Treaty, and shall have the same force as if it were inserted therein. The two Governments will amicably agree respecting the necessary Articles to be furnished to those persons, and also as to their respective escorts, should such be deemed necessary.