9.  The party engaged in the survey of the remaining part of the boundary line had before the orders of recall reached them successfully accomplished that duty, having connected their survey with points in the survey of the previous year and thoroughly explored the culminating points of the valley of Rimouski.  As had been anticipated from the level of the streams seen in 1841, this portion of the boundary claimed by the United States is more elevated than any other portion of that line between the Temiscouata portage and the northwest angle of Nova Scotia.  This survey would therefore have added an important link to the argument of the United States had not the question been settled by treaty.

The party having received its orders of recall, all the articles of equipment which could not be carried in the boats which had been launched on the waters of the Restigouche were transported to the other end of the portage and embarked in pirogues sent up Green River for that purpose under the direction of the assistant commissary.  The engineers then set out on their return by the Bell Kedgwick, the Grande Fourche, and the Southwest Branch of Restigouche.  Ascending the latter stream, this party reached the Wagansis portage on the 21st August, and arrived at the Grand Falls on the 25th August.

The descent of the Bell Kedgwick was attended with great difficulties in consequence of the low state of the waters.  Until its junction with Katawamkedgwick, to form the Grande Fourche of Restigouche, it was necessary to drag the boats by hand.

10.  The detailed map of the surveys of this division, exhibiting the more important points whose altitudes were determined by the barometer, has already been lodged in the Department of State under date of 27th December.

Although the interest of this survey to the United States has now passed away, yet, as it is probable that many years may elapse before this country shall be again explored, and as it may still possess some interest to the nation into whose undisputed possession it has now fallen, it may not be improper to state the methods employed in the survey, for the purpose of showing to what degree of faith it is entitled.

The latitude and longitude of the mouth of Green River were furnished by Major Graham.  The three portages on that river were surveyed by chain and compass.  The courses on the navigable parts of the river were taken with a compass and the distances measured by a micrometrical telescope by Ertil, of Munich.  This instrument, which had given satisfactory results on Metis and Mistigougeche in 1841, was still more accurate in the present survey.  The latitude of the south end of the Kedgwick portage as given by the plot of Green River on the original projection differed no more than 5” from that given by numerous astronomic observations, an agreement so close that it might be almost considered as arising from happy accident.  This survey therefore required but little correction, which was applied from the observations already cited and from those at two intermediate points.