320 
BULLETIN OF THE NATURAL HISTORY SOCIETY. 
Such appears to be in outline the probable development of the- 
Renous. With the exception of the lake at its head, its entire 
course has had from very early times a homogenous develop- 
ment. It is a remarkable fact about it that it has been so little 
affected by later changes, and especially that, except at its very 
head, it has nowhere been turned from its course by glacial, 
changes. 
86. — On the Physiographic Characteristics of the South- 
west (Tuadook, or Crooked Deadwater) Branch 
of the Little Southwest Miramichi River. 
Read December 6. 1904. 
Our published maps give very erroneous impressions of the 
relative sizes of the larger rivers flowing from the interior high- 
lands of the province. This is partly because their headwaters 
are so defectively, or even not at all, shown, and partly because 
their representation by single or by double lines, from which we 
largely infer their relative sizes, is not determined by actual size,, 
but rather by the extent to which they are known and used. A 
conspicuous case of this error (aided perhaps in this instance by 
the presence of the word “ Little ”) is found in the Little South- 
west Miramichi, which is a far larger river, and geographically 
more important, than our maps imply. Rising as a small moun- 
tain stream on the Central Plateau, it is very soon enlarged by the 
entrance of great branches, of which two are of especial size and 
importance, — the Upper North, or Walkemik Branch, described 
in the succeeding note (No. 87), and the Southwest, or Tuadook 
Branch, in part described in an earlier note (No. 55), and in part 
now to be considered. Two other large branches, the North 
Pole and the Lower North Branch, are, I believe, approximately 
correctly shown on existing maps, while the very interesting 
development of the lower course of the river has been considered 
in another note (No. 54). 
The Southwest (Tuadook, or Crooked Deadwater), Branch 
is composed of four distinct parts : (1) Indian Lake and its stream 
to Crooked Deadwater, (2) Crooked Deadwater, (3) the rapid 
stream thence to Big Lake, and (4) the Tuadook group of lakes. 
