AT NIGHT, FROM THE EARTH, ETC. 
177 
Table LXXXIII. 
General state of the sky 
during the night previous to 
reading the instruments. 
1843. 
September. 
Reading of 
thermo- 
Excess of the reading of a thermometer in air, at the height of 4 feet 
and protected from the effects of radiation, above that placed 
Day and 
hour of 
reading. 
meter in 
air at 
the height 
of 4 feet. 
On long 
grass ex- 
posed to 
■Jths of sky. 
On long 
grass. 
On short 
grass. 
One inch 
high. 
Three 
inches 
high. 
In focus of 
metallic 
reflector. 
Cloudless. 
d h 
2 21 
56-8 
10-3 
o 
o 
8-5 
O 
8-5 
O 
8-5 
O 
7-3 
5 21 
48-1 
6-1 
5*1 
7*1 
9- 1 
7-5 
6 21 
52-9 
5-8 
8-9 
8-9 
8 9 
10-5 
9 21 
58-0 
6-7 
11-8 
12-3 
12-0 
11-0 
13 21 
50-0 
13-8 
12-0 
8-5 
7-0 
13-0 
19 21 
53-3 
12-3 
13-3 
9*3 
5-8 
10*8 
20 21 
50-6 
8-8 
7-8 
6-6 
3-6 
6-1 
22 21 
50-8 
10-8 
11*5 
8-8 
5-2 
10-3 
23 21 
52-6 
11-4 
9-5 
9-1 
5*5 
7-8 
24 21 
47-4 
9-9 
10-6 
8-1 
4-5 
8-1 
27 21 
38-8 
13-0 
10-9 
9-8 
6-3 
8-4 
Principally cloudless. 
4 21 
44*3 
9-0 
9-1 
9-8 
9-0 
7 21 
56-6 
7-4 
12-4 
12-8 
12-5 
11-6 
12 21 
51-8 
1 0 8 
10-8 
10-9 
9-5 
18 21 
60-2 
8-8 
8-0 
5-7 
3-2 
6-7 
26 21 
39-5 
8-7 
8*5 
7*3 
3-3 
7-5 
28 21 
36-0 
8*4 
Half-cloudy. 
1 21 
58-6 
5-3 
8-3 
8-3 
8-8 
8-9 
10 21 
57*7 
4-1 
5-7 
5-3 
6-1 
8-6 
15 21 
58-0 
10-8 
9*3 
6-0 
4-0 
7-0 
16 21 
54-9 
7-2 
6-1 
3-9 
2-8 
3-7 
17 21 
57-8 
8-8 
7-3 
5-8 
3-6 
3-8 
21 21 
52-0 
9-8 
10-3 
8-8 
3-8 
9-0 
29 21 
47*8 
10-4 
9-7 
7-3 
4-8 
9-7 
Principally cloudy. 
11 21 
58-7 
5-4 
5-8 
5-2 
6*5 
10-0 
14 21 
61-0 
4-2 
2-0 
4-0 
2'5 
28 21 
43-4 
6-2 
5-1 
4-7 
3*4 
7-4 
Cloudy. 
3 21 
57-2 
5-7 
3-7 
4-2 
4-6 
7-2 
8 21 
61-6 
4-8 
5*4 
5-3 
5*6 
8-6 
30 21 
55-8 
— 0*5 
-0*4 
-0-2 
-0-9 
-0-4 
2 A 
mdcccxlvii 
