The knowledge now acquired shows that the idea of Colonel Bouchette is unsupported by the facts of the case, for the highlands which rise from the north shore of the Bay of Chaleurs do not meet those in which the most southerly branch of the Restigouche takes its rise. The British commissioners, although they give a profile of this ridge, do not pretend to have examined it except at Mars Hill, near the Aroostook, and at the Grand Falls of the St. John. It must be remarked that these profiles (the original one of Colonel Bouchette and that exhibited by themselves) are contrasted--one British authority with another--for the purpose of invalidating the ground on which the American claim is founded. It is not our business to reconcile these conflicting authorities, but it is our duty to recall the recollections of the fact that no part of the American argument laid before the King of the Netherlands was founded on this or any other estimate of heights. Many elevations, indeed, were measured with great pains on the part of the Americans as well as of Great Britain. On behalf of the United States Captain Partridge made many barometric observations, while Mr. Johnson took an extensive series of vertical and horizontal angles. His operations were performed in the presence of Mr. Odell, the surveyor on behalf of Great Britain, who doubtless made similar ones, as he visited the same stations with a better instrument and for the same avowed purpose. Mr. Odell's observations were not presented by the British agent, and those of Mr. Johnson were objected to. If received, they would have set aside the pretensions that a continuous ridge of mountains existed between the Metjarmette portage and Mars Hill. They are, however, superseded by the operations of the undersigned, which have yielded satisfactory evidence that no chain of highlands in the sense of the British commissioners, or even an "axis of maximum elevation," exists where it is laid down on their map. Nor can it be doubted that the operations of Mr. Johnson had a decided advantage in point of probable accuracy over theirs. The exploring meridian line used as a base was measured with a tolerable degree of accuracy, and from the three heights chosen by him the whole country is visible. On the other hand, the course of Messrs. Mudge and Featherstonhaugh being confined, except where they ascended Mars Hill, to the valleys of the streams, they were for the most part excluded from a prospect. In describing the view from Mars Hill, however, they have pictured in most accurate terms the true features of the country: "The character of the country may be well discerned and understood from this insulated hill. It presents to the eye one mass of dark and gloomy forest to the utmost limits of sight, covering by its umbrageous mantle the principal rivers, minor streams, and scanty vestiges of the habitation of man."