190 
MR. GLAISHER ON THE RADIATION OF HEAT, 
Table XCVI. 
1844. 
October. 
Reading 
of thermo- 
Excess of the reading of a thermometer in air, at the height of 4 feet 
General state of the 
and protected from the effects of radiation, above that placed 
sky during the night 
meter in air 
previous to reading 
the instruments. 
Day and 
hour of 
reading. 
at the 
height of 
4 feet. 
On long 
grass. 
On short 
grass. 
On flax. 
In focus of 
metallic reflector. 
Cloudless. 
d h 
O 
o 
o 
O 
O 
3 21 
53-3 
18-8 
17-8 
21-8 
13-7 
7 21 
33-2 
10-2 
8-7 
19*5 
4-2 
10 21 
47-2 
7*7 
7-2 
8-6 
3-2 
18 21 
36-5 
6-7 
5-3 
7-5 
4*2 
22 21 
30-8 
6-5 
4-6 
7-3 
5-3 
26 21 
43*2 
12-5 
9-0 
13-7 
7-4 
27 21 
36-2 ' 
12-0 
9-7 
9-9 
5-5 
30 21 
40-8 
11-0 
7-6 
10-6 
5-6 
Principally 
cloudless. 
4 21 
53*8 
44-0 
13-0 
12-0 
14-8 
13-0 
8*5 
5 21 
10-2 
9-0 
3-5 
11 21 
46-8 
7-8 
7*3 
9-3 
4-6 
14 21 
47-5 
6-4 
5*5 
8-0 
.7-0 
28 21 
39-8 
11*4 
9-4 
10-1 
10-2 
31 21 
44-2 
8*2 
5-5 
7-0 
6-7 
Hall-cloudy. 
2 21 
51-0 
9-0 
8-4 
12-0 
6-0 
6 21 
44-1 
8*7 
8-1 
8-1 
4-0 
8 21 
45-7 
8-5 
7-7 
8-2 
5-7 
13 21 
49-2 
7*9 
6’2 
12-2 
7-2 
16 21 
42-2 
6-2 
5-5 
7-7 
4-7 
17 21 
39-8 
- 
5-4 
4*5 
7-8 
8-3 
Principally 1 
cloudy. J 
19 21 
45-3 
5*6 
5-8 
8-8 
6-3 
Cloudy. 
1 21 
57-6 
5-1 
4-6 
5-6 
3-2 
9 21 
53-6 
4-8 
4-1 
6-6 
3-3 
12 21 
55-8 
5*7 
6-0 
9-8 
3-6 
15 21 
46-7 
2-0 
1-7 
2-2 
2-9 
20 21 
44-5 
100 
6-4 
11-5 
7-9 
21 21 
43-2 
3-2 
1-3 
1-2 
3*2 
23 21 
35-5 
7-7 
9-7 
13-3 
5*0 
24 21 
47-2 
l-i 
0-5 
1-9 
2-7 
25 21 
43-1 
9-1 
5-5 
16*1 
7-9 
29 21 
42-7 
3-7 
2-4 
2-7 
7-7 
