49 
SOLAR RADIATION— (Continued). 
■ 
Jtjlt. 
August. 
September. 
Max. 
Bk. Bulb 
in Sun. 
Max. in 
Shade. 
Diff. 
Max. 
Bk. Bulb 
in Sun. 
Max. in 
Shade. 
Diff. 
Max. I 
Bk. Bulb 
in Sun. 
Max. in 
Shade. 
Diff. 
o 
o 
o 
o 
o 
O 
o 
o 
O 
1856 
80-7 
68-0 
12-7 
74-3 
63-9 
10-4 
1857 
83-6 
69-6 
14-0 
82-5 
72 V 0 
10-5 
75-8 
67-4 
8-4 
1858 
79-6 
66-8 
12-8 
79-7 
66-3 
13-4 
1859 
86-7 
74-2 
125 
76-2 
63-7 
12-5 
1860 
83-8 
66-8 
170 
71-8 
59-5 
12-3 
1861 
85-8 
67-1 
18-7 
78-5 
63-9 
14-6 
1862 
80-3 
64-8 
15-5 
74-2 
62-6 
11-6 
1863 
87-3 
689 
18-4 
83-4 
660 
17-4 
70-1 
58-5 
11-6 
1864 
86-0 
70-9 
151 
80-9 
68-0 
12-9 
73-3 
65-2 
8-1 
1865 
94-4 
76-6 
, 17-8 
81-7 
68-7 1 
130 
82-3 
73-4 
8-9 
1866 
84-2 
70-3 
13-9 
77-8 
67-0 
10-8 
700 
62-4 
7-6 
Means 
84-76 
69-45 
15-31 
81-26 
68-34 
i 12-92 
75-11 
64-26 
10-85 
October. 
November. 
December. 
1856 
66-3 
59-4 
6-9 
47-6 
45-7 
1-9 
45-4 
44-8 
0-6 
1857 
66-9 
59-8 
7-1 
56-5 
50-1 
6-4 
57-5 
50-8 
6-7 
1858 
63-8 
55-0 
8-8 
51-8 
46-6 
5-2 
50-2 
45-3 
4-9 
1859 
66-1 
56-5 
9-6 
51-5 
46-9 
4-6 
42-6 
39-8 
2-8 
1860 
64-1 
55-4 
8-7 
49-0 
45-3 
3-7 
40-8 
39-5 
1-3 
1861 
64-8 
60-6 
4-2 
47-2 
45-9 
1-3 
44-0 
44-8 
-0-8 
1862 
61-9 
56-5 
5-4 
44-9 
43-7 
1-2 
48-2 
48-0 
02 
1863 
620 
55-9 
61 
523 
50-7 
1-6 
48-6 
48-3 
0-3 
1864 
61-7 
57-0 
4-7 
49-1 
48-2 
0-9 
41-9 
43-2 
1-3 
1865 
62-4 
58-6 
3-8 
51-7 
50-5 
1-2 
47-8 
47-4 
0-4 
1866 
62-5 
58-1 
4-4 
56-4 
49-5 
6-9 
52-8 
47-5 
5-3 
Means 
> 63-86 
57-47 
6-39 
50-73 
47-55 
3-18 
47-26 
45-40 
1-86 
MONTHLY VALUES. 
Max. in Sun. 
o 
January 45 -77 
February 49-90 
March 57*52 
April 69-84 
May 77-37 
June 83-63 
July 84-76 
August 81*26 
September 75*11 
October 63*86 
November 50*73 
December 47*26 
Max. in Shade. Diff . 
o o 
... 43-32 2-45 
...45-43 4-47 
... 48-41 9-11 
... 56-67 13-17 
.... 62-53 14-84 
.... 68-88 14-75 
... 69-45 15-31 
.... 68-34 12-92 
.... 64-26 10-85 
.... 57-47 6-39 
....47-55 3-18 
.... 45-40 1-86 
