Acadian and St. Lawrence Water-shed. 404 
a forthcoming report, by the writer and Mr. Wm. McInnes, 
to the Director of the Geological Survey), but the following 
brief summary embodying the more important results, will 
probably be of interest. 
The strata in question naturally fall into three groups, 
Of these, the first are those which directly constitute the 
eminence of Mount Wissick. At their base they exhibit 
a considerable thickness of a pure and nearly white highly 
vitreous sandstone, with thin beds of conglomerate, followed 
by a mass of shales partly grey and partly bright green 
and red, above which, forming the principal mass of the 
mountain, are thick beds of grey limestone, the whole 
having a thickness of about 600—1000 feet. Their dip is 
for the most part at a low angle and at the northern base 
of the mountain, where it rises precipitously from the lake, 
their unconformity to the Quebec group, consisting here of 
black and green slates which are highly disturbed and 
altered, may be readily witnessed. In the shales and 
limestones the fossils are abundant and large collections 
recently made show that with the possible exception of the 
sandstones at the base, the strata are newer than the 
Niagara formation, the lowest fossiliferous shales being 
about the equivalent of the Guelph formation of Ontario, 
above the Wenlock, but below the Ludlow group of 
England, while the higher range through this last named 
group to and possibly through the Lower Helderberg. A 
similar but less complete succession has been observed by 
the writer on the Rimouski river, in Bois Brulé Mountain 
at St. Blondine, in the valley of the Neigette, on Taché 
toad at St. Gabriel, on the Grand Metis, and finally on Lake 
Metapedia, and from each of these, fossils of similar character 
have been collected. On Lake Metapedia, the basal sand- 
stones were: also found to be fossiliferous, including among 
other forms that of Pentamerus oblongus, a Murchisonia and 
Oriostoma. 
The second series of rocks shown in the Temiscouata 
section is separated from the last by an interval of about 
800 yards without exposures, and differs greatly both in 
