River, and having by means of directions verified the position of a top 
of a mountain 2669 ft. very near its left hank; from the summit of this 
mountain and from the summit of one of the peaks determined by means of 
our base line on the bank of the St. Lawrence, and which may be seen from 
the other, we determined by a trigonometric operation, the situation of a 
conical peak about 17 mi. in front of us on the edge of a river which 
empties into the Baie des Chaiours. We, being directed toward this Mt . 
thru the forest, we reembarked on this river and took our directions to 
the Baie . The total distance following the detour of our route was more 
than 111 mi.; but in a straight line, from our map it is 74 mi. 60 chains. 
The same line, determined by the latitudes and longitudes of its ends, taken 
from the correct charts of Capt . Bayfield is 74 mi, 79 chains and that 
shown by the new map of the deputy surveyor general Couchette, on the point 
of being published , its length is 75 ml. 1C chains. The direction of the 
line coincides so well in the three charts that the difference is scarcely 
perceptible . 
The distance which we measured on the Chatte River before being obliged 
to abandon our canoes was 32-§ mi. in'following the detours and 25 mi in tak¬ 
ing the general course of the river valley. The distance covered tiock us 
thru the chain of the Notre Dame Mts which rise at' a distance of 12 mi in a 
straight line from the shores of the St. Lawrence and occupy a breadth of 
6 mi. more. The stream cuts these mountains at their very base, and at the 
point where we left the river we found, that the height of its bed above 
the level of the $^gsx»£x:tekxxxs' 22 H sea was 587, after .having ascended two 
little falls in the gorge of the mountain, one of 10 ft. the other of 60, 
giving a declivity of 18 ft. per mi for the water and 23 ft per mi. for the 
valley of the river. The width of this river (the Chatte) at our last sta¬ 
tion wag 50-60 ft. ™hil“ at its mouth its width is about 150 ft. Its course 
on descending between these two points exoftpt its si ight curves is as follows 
