NATURAL HISTORY AND PHYSIOGRAPHY OF NEW BRUNSWICK. 209 
followed the present course of Salmon Brook across to Barnabys 
River while the Gaspereau probably had a course into the 
Kouchibouguacsis.as I shall discuss more fully, with new evidence, 
in a note upon that river. In a country of such flat relief as this 
possesses, the evidence for such former connections must be 
chiefly cartographical, but everything I have seen able to observe 
upon the ground is strictly in harmony therewith. 
The alignments of the streams shown within the limits of 
the accompanying map suggest one or two other possibilities. 
Thus it seems plain that the upper part of Burnt Land Brook 
must have emptied through Muzrolls Brook, but was turned 
into the Southwest Miramichi by a process exactly identical 
with that which turned Cains river itself into the Miramichi. 
Again, the alignment of the upper Gaspereau with the upper 
part of Six-Mile Brook suggests a possible old course by this 
route and the west branch of Sabbies River, though this is much 
less likely than the other course for the Gaspereau already 
mentioned. One can also fancy an alignment between Cains 
River above Trout Brook, and the course of Sabbies River 
through to the Kouchibouguac, leaving Muzrolls Brook as the 
head of the river through Salmon Brook, a view which I 
suggested in the discussion of these rivers in Note No. 93, but 
which I now regard as less probable than the arrangement 
suggested above. 
There is an interesting fact about the easterly sloping plateau 
through which Cains River flows. It is by no means a uniform 
slope, but on the contrary seems to present a series of low crests 
and troughs across the course of the river. Possibly these have 
only been formed by erosion, but there is a possibility that they 
are tectonic. Thus, there is a crest below McKinley Brook, 
while Lower Otter Brook lies in a trough, one which can, I think 
be traced along the lower course of Burnt Land Brook and a 
part of the southwest Miramichi itself. Below is another crest, 
and then a trough at Blue Rock and Layton Brooks, and I am 
told that this low country extends through to Gaspereau by 
Mountain Brook, while Muzroll Lake seems to lie therein to the 
northwest, and it is possible that Big Hole Brook and Dungarvon 
