Distribution of Heat over the Globe. S69 
the level oF the ocean, according to the levels taken in Kentuc- 
ky, on the banks of the Monongahela, at Lake Erie 
The following table indicates for all the habitable temperate 
zone the division of the same quantity of annual heat between 
the two seasons of winter and summer. The numbers which it 
contains, are either the result of direct observations, or of inter- 
}X)lations between a great number of observations made in neigh- 
bouring places, and situated under the same meridian. We 
have followed each isothermal curve from west to east, giving 
the preference to places situated near the summits of the curve, 
as presenting at the same time the greatest differences in the di- 
stribution of the annual heat. The longitudes are reckoned 
from the Observatory of Greenwich. 
Isothermal Lines from to 68°. 
Long. 
Lat. 
j Mean Temperature. 
Winter. 
Summer. 
Isoth. Line 
of 68\ 
82°10'W. 
16 56 W. 
29° 30 
32 37 
Florida.^ 
Madeira.^ 
53°.6 
63.5 
80°. 6 
72.0 
1 
3 OE. 
36 48 
North Africa, 
Mississippi, 
59.0 
80.6 
Isoth. Line i 
89 40 W. 
32 30 
46.4 
77.0 
of 63*.5 1 
14 11 E. 
40 50 
Italy, 
50.0 
77.0 
Isoth. Line i 
84 10 W. 
35 30 
Basin of the Ohio, 
39.2 
77.9 
of 59°. 1 
3«— 4°E. 
43 30 
Middle of France, 
44.6 
75.2 
I 
f 
84 40 W. 
38 30 
America, W. ofAllegh. 
34.7 
75.2 
Isoth. Line <- 
of 54°. 5 I 
1 
74 low. 
40 0 
America, E, of ditto. 
32.5 
77.0 
1 32 W. 
47 10 
West of France, 
39.0 
68.0 
9 20 E. 
45 30 
Lombardy, 
34.7 
73.4 
I 
L 
116 20 E. 
40 0 
East of Asia, 
26.6 
82.4 
84 20 W. 
41 20 
America W. ofAllegh. 
31.1 
71.6 
71 10 W. 
42 30 
Anierica E. of ditto. 
30.2 
73.4 
Isoth. Line 
of 50°, 
6 40 W. 
52 30 
Ireland, 
39.2 
59.5 
0 40 W. 
53 30 
England, 
37.4 
62.6 
2 20 E. 
51 0 
Belgium, 
36.5 
63.5 
19 0 E. 
47 30 
Hungary, 
31.1 
69.8 
116 20 E. 
40 0 
Eastern Asia, 
23.0 
78.8 
j 
r 
71 0 W. 
44 42 
America E. of Allegh. 
23.9 
71.6 
Isoth. Line J 
1 
2 10 W. 
57 0 
Scotland, 
36.1 
56.5 
of 45°. 5. 1 
12 35 E. 
55 40 
Denmark^ 
30.3 
62.6 
\ 
{ 
21 20 E. 
53 5 
Poland, 
28.0 
66.2 
71 10 W. 
47 0 
Canada, 
14.0 
68.0 
Isoth. Line J 
1 
9 20 E. 
62 45 
West of Norway, 
24.8 
62.6 
41° 1 
41. 
17 20 E. 
60 30 
Sweden, 
24.8 
60.8 
1 
24 20 E. 
60 0 
Finland, 
23,0 
63 5 
1 
L 
36 20 E. 
58 30 
Central Russia, 
22.1 
68.0 
1 
r 
71 40 W. 
50 0 
Canada, 
6.8 
60.8 
Isoth. Line j 
of 36°.5. 1 
1 
18 5 E. 
62 30 
West coast of Gulf if 
Bothnia, 
17.6 
57.2 
1 
1 
22 20 E. 
62 50 
East coast of dii to. 
16.5 
59.0 
1 
r 
57 40 E. 
53 0 
Labrador, 
3.2 
51.8 
Isoth. Line J 
1 
19 50 E. 
65 0 
Sweden, 
11.3 
53.6 
of 32°. 1 
[ 
25 20 E. 
71 0 
North Extremity of Nor^ 
23.9 
43.7 
way. 
* Drake’s Nat. and Statist. Fiew of Cincinnati^ p. 63. 
VOr.. TIL KO. 6. OCTOBER T 
