Miles.
1. Along the river St. John from the meridian of the monument of the source of the St. Croix to the mouth of the river St. Francis71-1/2
2. Along the river St. Francis from its mouth to the outlet of Lake Pohenagamook49-3/4
Total121-1/4

IV.

A map marked L², on a scale of 1:400,000, exhibiting the lines respectively claimed by the two nations under the treaty of 1783, as well as that adopted by the treaty of 1842, is herewith presented. By reference thereto the operations of the several divisions during the present and previous years will be better understood.

For a more particular view of the surveys and explorations made under the direction of each of the commissioners, including descriptions of the face of the country, navigation of streams, etc., the undersigned respectfully refer to their respective narratives hereto appended, and to the maps of detail deposited by each in the Department of State.

All which is respectfully submitted.

JAS. RENWICK,
A. TALCOTT,
JAMES D. GRAHAM,
Commissioners.

APPENDIX No. 1.

OPERATIONS OF THE DIVISION UNDER THE DIRECTION OF JAMES RENWICK, LL.D., CHAIRMAN OF THE BOARD.

I.—Operations during the year 1841.

1. At as early a period as there was any probability of the country being accessible two engineers were dispatched from the city of New York for the purpose of exploring the Rimouski River. This had been crossed by the commissioner late in the previous season. It had been ascertained that it took its source much farther to the south than was represented on any map, and that at its head would be the greatest difficulty in the intended researches. It was, besides, considered necessary that skillful boatmen and practiced woodsmen should be engaged in Canada. These it was believed could be found in Quebec, and the chief of this detachment, with an appointment as acting commissioner, was directed to perform this duty on his route.