ABSORPTION OF LIGHT IN GASEOUS MEDIA. 
4 Hi 
Table XL 
c 
</j. 
0. 
■ 
1 + cos'-^ 9 
sec f/). 
Zenith sky 
pixlO-*. 
oun 
Observed 
1 + cos^ ( 
Sun 
Sky/Sun x 10~L 
1 
60-2 
S61 
‘ 1 
55 ■ 8 
79°-2 
- 4H5 
46-1 
1-127 
j 5-34 
55-0 
330 
295 
1 
49-0 
294 
! 
60-6 
193 
1 
55-5 
67-4 
- 41-2 
37-9 
1-228 
2-60 
55-1 
176 
219 i 
50-0 
160 
i 
1 
61-8 
HO 
1 
54-0 
54-5 
- 35-5 
28-7 
1-316 
1-72 
56-3 
127 
165 
50-5 
114 
1 
1 
1 
62-0 
122 
. 
53-6 
44-6 
- 21-3 
18-6 
1-402 
1-40 
57-0 
112 
190 
1 
I 
51-0 
100 
6 If. ' 6 
118 
1 
50-4 
40-5 
- 6-7 
11-5 
1-392 
1-31 
59-3 
108 
285 
53-2 
97 
! 
1 
65-0 
101 
i 
49-8 
31-1 
12-9 
20-6 
1 - 327 
1-17 
60-0 
93 
350 1 
54-0 
84 
1 
65 • 5 
70-7 
i 
49-2 
49-7 
-149-6 
94-4 
-696 
1-55 
60-4 
65-2 
98 1 
54-5 
58-8 
! 
65 - 8 
73-0 
i 
48-9 
50-4 
- 113-3 
79-1 
-707 
1 • 57 
60-6 
67-2 
108 
54-8 
60-8 
j 
: 
67-0 
296 
j 
47-4 
79-2 
- 63-4 
63-2 
•826 
5-34 
61-8 
273 
222 
56-0 
247 
67-2 
229 
1 
47-0 
77-9 
- 84-5 
77-7 
•714 
4-77 
62-0 
211 
171 
56-2 
191 
67-8 
76-1 ' 
46-5 
29-2 
- 79-6 
48-5 
• 977 ! 
1-15 
62-5 
70-2 
98 1 
1 
! 
57-0 
64-0 
68 • 0 
57-7 
1 
! 
4G-2 
27-8 
144-8 
70-3 
•752 
1-13 
63-0 
53 • 5 
68 
57-1 
48-5 
1 
Total Shj Radiation at Moamt Wilson, October 19, 1906. 
Comparison of ratio shjjsun for equal solid angles with results of calculation from the formula 
J ^ T (c/), () dk ^ I ^ E (C dk. 
3 II 2 
