Vegetable Productions if the Hudsorts Bay Countries. SI 9 
Table X.^ — Continued. 
Mean Temperatures 
Ph.Ih 
G 
Date. 
Of pre- 
ceding 
Month. 
Of 10 pre- 
ceding 
Days. 
Of maxi- 
mum for 
10 days. 
Of mini • 
mum for 
10 Days. 
Highest ter 
rature wit 
10 Days. 
Phenomena. 
1821. 
May 21. 
Geese arrived (Anas Canadensis, 
28. 
and hyperhorea). Temp. + 39®. 
Temp, in shade +68°. Plovers 
31. 
+ 31.60" 
+ 36.50 
+ 48.27" 
+ 24.73 
+ 68° 
seen (Charadrius pluvialis). Erio- 
phorum flowering. 
Snow nearly gone at Fort Enter- 
June 7- 
prize, but on Point Lake half a 
degree farther north, and at the 
same elevation above the sea, 
scarcely begun to melt. 
On the 7th, in Lat. 55", about 32 
8. 
10. 
... 
441.55 
+52.80 
+30.30 
+ 73 
miles directly north from Fort 
Enterprize, and about 150 feet of 
greater elevation, the snow had 
scarcely diminished, except on 
the sides and summits of the hills 
which are all of small elevation. 
The first, or female band of rein- 
deer passed Lat. 65" at this time, 
their progress over the barren 
grounds being regulated by the 
uncovering of the lichens. When 
the thaw is farther advanced, the 
lichens become too tender and 
pulpy, and the deer resort to the 
SAvamps to feed upon the hay or 
grass, which, frozen up in the 
end of autumn, retains its sap and 
nutritive qualities, on the snow 
first melting from around it in 
the spring. In a few days, how- 
ever, the culms become dry, and 
the seeds are shed, the deer by 
that time having reached the sea- 
coast, where the sprouting carices 
form their food, but are not so 
fattening as the lichens. 
Sudden thaw at Point Lake, Lat. 65 " 
10'. Eriopliorum just bursting 
forth there. It flowered ten days 
earlier at Fort Enterprize. 
Note. The temperatures up 
to the 10th, are from the 
register kept at Fort Enter- 
prize ; the following obser- 
vations were made on. Point 
Lake, Lat. 65 "^66" N. 
Long. 113"_114 W. 
