GP Ow ae el 
of a part of the Saguenay Country. 103 
with a few small glimmering points, arising from the reflection 
of light from the polished surfaces of minute crystals of com- 
mou felspar ; however, upon submitting it to the blowpipe, it 
was found to be infusible, but the heat it had been exposed to 
disclosed its really granular structure, which induced us to sup- 
pose it to be an exceedingly intimate aggregate of quartz, fel- 
spar, and hornblende, the leading mineral in excess. This has 
been mentioned merely to hint at the difficulty which sometimes 
attends an examination into the mineral constituents of rocks. 
Having again put on shore in a very convenient bay, op- 
posite Baie la Trinité, syenitic rocks were met with, or mix- 
tures of felspar, hornblende, and very rarely quartz ; the felspar 
' was white, grey, red, yellow and greenish ; the hornblende al- 
ways black. These rocks, as elsewhere on the shores of the 
Saguenay, were in some places much stained by iron, and Mr. 
Proulx collected a specimen on the north side of the river, in la- 
titude, as he ascertained by observation, 480 24°, which was 
not only much discoloured, but the rock from whence it was 
taken affected the needle to the amount of 19-30‘. We could 
perceive magnetism very distinctly in the specimen in question, 
but it is avery common character here, and was found to exist 
in many of the specimens brought home, particularly in the 
trap anc some of the syenites abounding in hornblende, to 
the presence of which mineral it could generally be traced, 
The rocks had bere a dip to the south at a high angle. The 
fall of the tide was ascertained to be twenty-one feet. 
We left the bay about eleven o’clock, p. m. to avail ourselves 
of the tide, and coasted along the north-eastern shore all night. 
In the morning of the 13th of August we landed in a bay on 
the left shore, called Ance aux Femmes, directly opposite to 
HaHa Bay. Here we found a rock containing more quartz 
than usual, and passing into a syenitic granite, the felspar in 
which is flesh-coloured. This rock was observed to have the 
same 
