the whole of the surveys the latitudes were carefully
determined, by the methods employed during the former years, at a
sufficient number of points. The longitudes have been estimated by the
use of chronometers, but the sudden recall of the party left the latter
part of the task incomplete. Any defect arising from the latter cause
may be considered as in a great degree compensated by the connections
referred to with the work of Major Graham and the surveys of the
previous years.

The party left Portland to take the field on the 18th June, and reached
the Grand Falls of the St. John on its return on the 25th August.

The surplus stores, with the boats and camp equipage, were stored there,
and were afterwards transferred to the parties of the two other
commissioners.

A map of the operations of this division was placed on file in the State
Department on the 27th December.

The distance surveyed along Green River from its mouth to the portage is
57 miles, the length of the portage 5-1/2 miles, the distance measured
in exploration of the remaining portion of the boundary claimed by the
United States 61-1/2 miles, making in all 124 miles.

II.

The parties under the direction of A. Talcott entered upon their field
duties about the middle of September, and completed that branch of the
service by the 5th of November.

During that period the following rivers and streams were surveyed:

1. The "main St. John River" from the mouth of the "Alleguash" to the
Forks.

2. The "Southwest Branch" to its source at the Metjarmette portage.

3. The "South Branch," or "Wool-as-ta-qua-guam," to 5 miles above Bakers
Lake and near to the exploring line of 1841 along the highlands claimed
by Great Britain.

4. The "West Branch," or "Mat-ta-wa-quam," to its source in the highlands.

5. The "Northwest Branch" to its source in the highlands.

6. The "Big Black River," or "Chim-pas-a-ooc-ten," to its source.

7. The "Little Black River," or "Pas-a-ooc-ten."

8. The "Chim-mem-ti-cook River" as far as navigable.

The character of all these streams is the same--slack water of moderate
depth alternating with rapids. They can never be navigated by anything
larger than a bateau.

The method of survey was to trace the course of each stream by compass,
estimating distances by the eye, or by pacing when the nature of the
margin of the river would permit.

The average distance coursed per day was about 9 miles, and at the camps
formed