220 
Dr Richardson’s Remarks on the Climate and 
Table X. — Continued. 
Mean Temperatures. 
1 
0) C2 
ir rH 
Date. 
Of pre- 
ceding 
Month. 
1 Of 10 pre- 
ceding 
Days. 
Of maxi- 
mum for 
10 Days. 
Of mini-. 
mum for 
10 Days. | 
Highest ten 
rature witl 
10 Days. 
Phenomena. 
1821. 
June 12. 
Thermometer at Point Lake rose 
to 78" in the shade. Hard rain. 
Small lakes broken up. Point 
Lake still covered with ice five 
feet thick. Robins {Turdus mi- 
gratorius\ God wits Limosa Fedoa) 
and ducks hatching. A species 
of martin arrived. It builds a 
nest on the rocky precipices of 
the barren grounds, similar to 
the nests ef the house-martin in 
England. 
14. 
Temperature 4 56°. Calm and 
fine weather. Snow melting fast. 
It lies at present only under the 
steep cliffs. The radiation of 
heat from the rocks that bound 
Point Lake is such, that the ice 
is perforated by large holes under 
every precipice. By these holes 
the water from the melted snow 
runs off. The diminution of ice 
on the lakes proceeds most ra- 
pidly on its under surface, from 
the contact of the warmer water. 
The Salix desertorum burst its 
catkins to-day. 
15. 
Temperature 60°. The streams 
that issue from the melting snow 
under the precipices and sides of 
the hills, are now pretty large, 
some, of them scarcely fordable, 
and all the valleys are flooded. 
The Arbutus alpina began to 
flower to-day. All the small birds 
are hatching. 
17. 
... 
Snow and sleet. Temperature 30° 
to 35°. 
19. 
0 
0 
Temperature 54°. Ice on the lake 
honey-combed from the action of 
the sun. Anemme cuneifolia in 
flower. 
20. 
+ 43.35 
452.10 
4 34.60 
+ 78“ 
21. 
0 
Midsummer-day. Dwarf-birch {Be- 
tula glandulosd) opened its buds 
to-day. The last or male bands 
of deer have passed to the north, 
a few stragglers only remaining. 
30. 
+ 42.05 
447.10 
+ 35.40 
+ 41.25 
+ 56 
The ice on Point Lake much de- 
cayed and honey-combed. 
