NATURAL HISTORY AND PHYSIOGRAPHY OF NEW RRUNSWICK. 44.’) 
the Nepisiguit to Bay Chaleur near Belledune. It is composed 
of the same ancient crystalline rocks as the Southern Highlands, but 
rises to extreme heights of 2,600 to 2,700 feet, with a general elevation 
•considerably lower. In two places I have recognized beautiful facets 
of ancient peneplains. The first is in the level plateau, 1,700 to 1,800 
feet above the sea, which exists between the headwaters of the Right 
Hand Branch of Tobique and the headwaters of the Little Southwest 
Miramichi (compare Note 55.) As seen from Long Lake on the 
Tobique, or from the Big Lake on the Miramichi, it presents the 
aspect of an extensive flat-topped ridge, which is shown upon nearer 
acquaintance, especially by crossing it, to be a rolling plateau. Frag- 
ments of it exist off to the eastward in Mount Braithwaite and ridges 
along the Little Southwest’ River, and to the southward of the 
Crooked Dead water.* I have no doubt that this is one of the facets 
of the same great peneplain which Daly describes as the Cretaceous 
peneplain of Nova Scotia, and further study will unquestionably show 
that it has a much wider extension in this region. Its height is little 
greater than required by the angle at which it slopes upward in Nova 
Scotia and the Southern Highlands. Second, the Governor’s Plateau, 
which I described in an earlier note (No. 29) without at all under- 
standing its significance, appears to be a very typical facet of a true 
peneplain. It stands, however, at a higher elevation, some 2,400. to 
2,500 feet. One at first inclines to consider that it is a fragment 
of an earlier peneplain, but, recalling the present high elevation of the 
Silurian plateau, presently to be spoken of, we see that it is doubtless 
due to the up warping which this region must have undergone, and 
which, probably, explains in part the height of the plateau between 
Tobique and Miramichi, already considered. The mountains centering- 
in Bald Mountain on the South Branch of the Nepisiguit probably 
represent another facet of the same peneplain similiarly upwarped, 
but these stand also on the hinge line of the greatest elevation, presently 
to be referred to. 
North and west of these central highlands lies the great Silurian 
plateau, a fine type of a peneplain, of undulating surface, some 800 to 
1,000 feet abov^e the sea, composed of soft Silurian rocks, into which 
the Tobique, St. John, Restigouche and other rivers have deeply cut. 
This answers perfectly to Daly’s younger or Tertiary peneplain in 
* I expect later to continue the study of this peneplain, and to present a map of it. 
