3. All the principal heads or branches of the Connecticut River north of the forty-fifth degree of latitude.
4. The St. John and all its principal branches or tributaries west of the Alleguash River.
III.
The division under the direction of Major Graham has been employed during the past season in making the following surveys, viz:
1. In prolonging the meridian of the monument at the source of the river St. Croix.
2. In making a survey of the Little Madawaska River, a tributary to the Aroostook, from its mouth to its source in the Madawaska Lakes.
3. In surveying the group of lakes lying northwest of the Madawaska Lakes, known by the appellation of the Eagle Lakes, or sometimes by the aboriginal one of the Cheaplawgan Lakes, and especially to ascertain if those lakes, or any of them, emptied their waters into the river St. John by any other outlet than Fish River.
4. A survey of the portion of Fish River included between the outlet of Lake Winthrop and the river St. John.
5. A survey of the river St. John between the Grand Falls and the mouth of the Alleguash.
6. A survey of the Alleguash from its mouth to its source.