AT NIGHT, FROM THE EARTH, ETC 
Table XCV. 
389 
General state of the 
sky during the night 
previous to reading 
the instruments. 
1844. 
September. 
Day and 
hour of 
reading. 
Reading 
of thermo- 
meter in air 
at the 
height of 
4 feet. 
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 
On long 
grass. 
On short 
grass. 
On flax. 
In focus of 
metallic reflector. 
d h 
O 
o 
O 
O 
Cloudless. 
1 21 
48-7 
11*9 
1 1*2 
14-4 
12*2 
4 21 
59-4 
6-3 
5-9 
8-1 
7-9 
10 21 
44-8 
10-8 
10-0 
12-8 
11*3 
18 21 
41-3 
11-3 
8-3 
11-3 
7-8 
19 21 
47-3 
11-5 
9-6 
13-6 
13*7 
20 21 
45-9 
11-1 
10-9 
14-6 
10*1 
24 21 
41-8 
11-5 
9-6 
11-8 
9*6 
25 21 
40-8 
10-5 
8-4 
12-6 
9*6 
26 21 
41-1 
11-1 
8-5 
14-9 
9-5 
27 21 
40-3 
9-9 
6-1 
8-1 
28 21 
45-1 
9-8 
8-1 
8*5 
29 21 
34-8 
9-8 
7-3 
12-2 
7*6 
Principally 
2 21 
51-0 
10-5 
9-5 
13-7 
8*4 
cloudless. 
5 21 
57-0 
10-0 
9-7 
12-4 
8*3 
11 21 
49-8 
9'6 
8-3 
10*6 
10-0 
21 21 
47-1 
10-6 
10*1 
13*1 
11*1 
22 21 
49-1 
13-1 
12*1 
5*1 
Half-cloudy. 
6 21 
62-6 
16-2 
7 21 
56-8 
6-3 
5*6 
8*7 
7*8 
Principally 
12 21 
52-9 
7-5 
5-7 
8*6 
8*2 
cloudy. 
13 21 
53-8 
6-8 
6-4 
7-5 
8-1 
16 21 
60-8 
5-4 
4-6 
6-5 
5*0 
17 21 
53-9 
5-3 
5*2 
7-8 
2-3 
23 21 
49-3 
7-0 
3-9 
7-4 
8*1 
Cloudy. 
3 21 
59-6 
3-8 
3-1 
4*2 
3*4 
8 21 
55*5 
3-2 
1*5 
3*2 
6*0 
9 21 
55*8 
0-8 
1-1 
0*8 
5*8 
14 21 
57-3 
4-8 
4-4 
4-9 
6-0 
15 21 
61-4 
4-1 
4-6 
4*8 
5*9 
30 21 
42-2 
1-6 
2-6 
2-9 
