$4 Lieut. Baddeley on the geognosy 
the island. We here made a small excursion inland, for about 
two miles, on a N. W. course, without observing any thing 
more remarkable than an isolated ridge of grey wacke, suddenly 
cropping out and dipping to the S.E.*. at an angle of from 
50° to 60°. Upon our return we took the Sun’s Meridian Al- 
tiude, and found the latitude to be 460 53’ 407, 
Leaving river La Fleur, we came to anchor again off La 
Grosse Isle, on which we passed the night. This island we 
were informed belongs to the Ursulines, and is about three 
quarters of a league long, by about 550 feet wide, but being 
almost entirely a bare rock, one farm only, of about 90 acres, 
is under culture upon it. Having reached this place very late 
at night, and quitting it very early in the rorning, our geog~ 
nostical observations were necessarily very scanty. The rock 
we believe is grey wacke. It is covered witha grey lichen, and 
bears the appearance externally of a solidity it does not possess, 
at least in the places examined, as it readily broke under the 
hammer, into tabular pieces, with oxidated surfaces. The ob- 
scuricy cf the weather and time at the period of observation, 
together with the absence of the specimens collected, which 
were left behind, will not allow us to describe with confidence. 
The outline of the island is craggy and irregular. 
Fassing to the southward of the island, in descending the St. 
Lawrence, several islands, viz: Marguerite, Cochon, &c. &e., 
some of them mere isolated rocks, were observed on the left 
hand, and which have the appearance of being also of grey 
wacke. 
Ve lay off the mouth of the Saguenay on the morning of 
the 9th of August, ata conjectured distance of from 9 to 12 
miles. The highest point of land on the western side of the 
entrance into the Sagueuay at this distance, subtended an angle 
of 
__ * This is the prevailing dip on the northern shore of the St, Lawrence ; 
it is frequently reversed on the southern 
