NATURAL HISTORY AND PHYSIOGRAPHY OF NEW BRUNSWICK. 235 
be connected with their presence. It may be that it represents 
the general line at which these many rivers, flowing radially out 
of the great central watershed, met the eastern Carboniferous 
plain, which had a general northeasterly slope. Another possible 
explanation of the part of the river under consideration is that 
while not post-glacial, it may be “ inter-glacial,” and hence not 
older than the glacial period. In this case a pre-glacial channel 
ought to exist running southeast to near Chaplins island. As 
confirmatory of the “ inter-glacial ” character of much of this 
valley, I may mention one striking fact. At the “ inter-glacial ” 
gorge a mile below Stony Brook, the river cuts through a lofty 
ridge, probably nearly 200 feet high. Now just west of this 
ridge, and parallel with it, is a deep, broad valley running nearly 
north and south, seeming to show that the original drainage was 
south or southeast, not east, as at present. And I fancied else- 
where that I detected evidence of a similar north and south 
drainage between ridges having that direction. But my visit was 
too hasty to allow me to obtain other evidence upon this interest- 
ing question. 
• In an earlier note (No. 33) on the physiographic historv of 
the Nepisiguit River, I made the suggestion that some of the 
features of its course below Indian Falls are best explained by 
supposing that it is a composite river, parts of which formerly 
(of course in times long pre-glacial) flowed into the Miramichi 
system. I have no new evidence at present to offer, but all facts 
available seem to me in harmony with this view. In this case it 
is likely that Tomogonops headed in the main Nepisiguit near 
Indian Falls, and Forty-four Mile Brook was the head of that 
part of Nepisiguit below it, while Little River headed in Copper 
Forty-two Mile Brook, and the valleys in which its source-lakes 
lie. 
Section 5. From Portage River to Red Bank. — At Portage 
River the Northwest turns to the south and keeps that general 
direction to Red Bank. For the most part the river flows with 
a strong current over gravel, and occasionally among boulders, 
but there are frequent long stillwaters and pools, and in one 
place at least its course is over ledges and through a small post- 
glacial gorge. The banks are mostly intervales and terraces, all 
