It is insisted by the British ministers that a due north line from the monument at the source of the St. Croix will intersect no highlands described in the treaty of 1783. Now this is an assumption by Great Britain totally unwarranted by any evidence. The boundaries bearing upon the question are thus given: "From the northwest angle of Nova Scotia, to wit, that angle which is formed by a line drawn due north from the source of the St. Croix River to the highlands; along the said highlands which divide _the rivers_ that empty themselves into the St. Lawrence from those which fall into the Atlantic Ocean, to the north westernmost head of Connecticut River"; "east by a line to be drawn along the middle of the river St. Croix from its mouth, in the Bay of Fundy, to its source, and from its source directly north to the aforesaid highlands which divide the rivers that fall into the Atlantic Ocean from those which fall into the St. Lawrence." The first object, starting place, or _terminus a quo_, is this _northwest angle of Nova Scotia_. It is the corner of the British Province _designated by themselves_. It was presumed, and it is still believed, that they knew the identical spot; we have a right to demand of them to define it. In the treaty of 1783 they were disposed to define it, and hence they say it is _that angle which is formed by a line drawn due north from the source of the St. Croix to those highlands which divide the rivers that flow into the St. Lawrence from those which flow into the Atlantic Ocean_. Nothing can be more clear than that the British negotiators of the treaty of 1783 had reference to their east and west line between Canada and Nova Scotia. This in 1755-56 was matter of controversy between France and England, the French claiming that it was far south and the British strenuously contending that these very highlands were even more north than we have endeavored to fix them. The controversy resulted in a war, which, after the capture of Quebec, was terminated by the peace of 1763, whereby Great Britain obtained both sides of the line, and she then established the north line of Nova Scotia about where we contend it should be. So far from admitting that a due north line from the monument will not intersect the highlands intended by the treaty of 1783, the State of Maine has always insisted, and still insists, that no known obstacle exists to the ascertaining and accurately defining them, and thus establishing the _terminus a quo, to wit, the northwest angle of Nova Scotia_. It would seem strange, indeed, that this line, so fully discussed and controverted between the English and French in 1755-56, should have been left unsettled still when both Provinces became British. It is impossible to imagine such ignorance of so important a point as this northwest angle, so often referred to and spoken of as a notorious monument.