194 
BULLETIN OF THE NATURAL HISTORY SOCIETY. 
first studied with some care and descri 1 :>ed by Charles Robb in 
1868. (Report of the Geological Survey for 1866-69). Studies 
of other parts of the basin have been made by Bailey, Matthev/ 
and Ells. (Reports of the Geological Survey of Canada, 1870- 
71, 1872-73, and 1878-79D). The surface geology of the lake 
has been described from a visit in 1883 by Chalmers (Report of 
the Geological Survey of Canada, GG, 1882-84) who gives also 
an appreciative account of the scenery, especially towards the 
north. No studies of any kind upon the natural history of the 
basin appear to have been made prior to our trip. I understand 
from Dr. Hay that his observations of the plants along the river 
showed only the common plants of New Brunswick, with none 
especially noteworthy. 
Our study of the river shows that it falls naturally into six 
sections, which I shall consider separately. 
I. The Norf Invest Lake. — The Northwest Oromocto Lake, 
some eight miles long* and 2^ in extreme breadth, lies in a north- 
and-south valley with high ridges (some 200 feet over the lake), 
on the west between it and the Magaguadavic, and a low country 
to the east and south. It empties from the eastern side. Its shores 
are nearly everywhere rocky, for the most part of middling-sized 
boulders, often pushed up into marked ice-dykes, sometimes pave- 
ment-like, and including many morainic points of small boulders, 
extending often as shoals far out into the lake. In many places, 
notably at Ship Island, Kelly Island** and the northeast coast, 
the shores are conglomerate ledges, often worn by the water 
into caves. Elsewhere, especially at AVhite Sand Cove and on the 
southeast shores, are some fine sand beaches. The three islands at 
the southern end of the lake are of glacial drift and their axes 
have, with the moranic points, the usual northwest and southeast 
direction. The depths of the lake are extremely irregular, and in 
many places it is very shoal, both near the shores and also 
upon certain island-like shoals, apparentlv ledges, which come 
nearly to the surface, especially between Ship Island and Green 
Point and between Kelly’s Island and the western shore. On the 
* Locally it is insisted that this lake is nine miles long, but O’Connor’s map, made with 
much care and checked by mumerous intersections, makes it less than eight miles. 
** fact worth mention about this island is its use locally as a kind of large game trap. 
Deer and other animals cross to it from the shore by the bar of gravel and sand, indicating 
their presence by their tracks on the sand ; they are then driven from the woods of the 
island by hunters, to fall before the guns of others stationed at the bar. 
