of a part of the Saguenay Country. = 127 
Lake St. John appear to correspond. The fossils however of 
the former are not only more siliceous, but the limestone itself 
in which they are embedded has been in some places metamor- 
phosed into a chert or hornstone. 
For the accompanying very accurate drawing of this fossil, 
(pl. 8) we are indebted to Lieut. Ditmus, 66th Regt., ample 
justice to which has been done by the engraver, Mr. Smilie. 
This limestone appeared to be separated from the clay-slate 
above it by a thin black shaley calcareous stratum, full of short 
undulations and rounded concavities occasioned by correspond- 
ing projections and spherical knobs in the limestone. These 
knobs or balls could sometimes be detached, and were found 
to be composed of a very compact dark grey limestone, having 
a glimmering lustre arising from the reflection of light from a 
few crystalline points, and a water-worn aspect. Inthege no 
vestige of organic remains could be perceived, although a slightly 
fetid odour indicated their presence originally. The stratum of 
limestone in which they were imbedded appeared equally free 
from organic remains, but was of a more earthy texture. The 
thin black shaley stratum is itself a limestone, as its free efferves- 
cence in acid declares, but it appears to contain much clay and to 
be passing into c’ay-slate. The position of these balls we 
conceive is corroborative of the inferior level of the lime-stone 
with regard to its planes of stratification. 
It is with much hesitation that we have ventured to state out 
opinion that secondary limestone here underlies clay-slate, be- 
cause we know that such a position, if not altogether new, isat 
least of very rare occurrence. But as our province is to describe 
and not to theorize, we should have advanced still more im- 
probable suppositions if, after the same unprejudiced research» . 
there had been cause in our opinion to entertain them, The 
knowledge of natural history is very little likely to be extended 
if her votaries restrict themselves in their reports to what the 
exist- 
