410 DR. C. CHREE: ANALYSIS OF RESULTS FROM THE KEW MAGNETOGRAPHS 
Table XXXVI.—Annual Variation of Fourier (loelEcients in 
' 
0 . 
f'o. 
■ 
Kew. 
Greenwich. 
Kew. 
Greenwich. 
Sun-spot 
11 years. 
Sun-spot 
Sun-spot 
Sun-spot 
11 years. 
Sun-spot 
Sun-spot 
minimum. 
maximirm. 
maximum. 
minimum. 
maximum. 
maximum. 
January . 
20 
29 
37 
34 
59 
69 
61 
63 
February . 
40 
48 
58 
44 
61 
63 
73 
69 
March. 
81 
89 
95 
85 
102 
100 
102 
102 
April . . 
124 
131 
136 
136 
139 
138 
139 
132 
May . . 
162 
153 
145 
141 
85 
111 
124 
117 
June . . 
165 
150 
147 
164 
121 
114 
116 
133 
July 
154 
151 
148 
160 
112 
123 
124 
126 
August 
154 
148 
140 
151 
118 
113 
116 
113 
September 
137 
128 
114 
106 
128 
106 
85 
92 
October . 
110 
101 
89 
98 
132 
107 
93 
113 
November 
41 
55 
64 
53 
96 
98 
99 
79 
December. 
13 
16 
29 
28 
48 
56 
67 
6] 
MTnter 
24 
37 
47 
39 
67 
73 
76 
69 
Equinox . 
114 
112 
108 
106 
124 
110 
103 
108 
Summer . 
162 
151 
145 
155 
109 
117 
121 
123 
A1) s o 1 u t e' 
7- 
7- 
7- 
7- 
7- 
7- 
7- 
7- 
values of 
coefficients 
i n m e a n 
diurnal in- 
6 • 95 
9 • 44 
12-25 
13-72 
4-02 
5-14 
6 - 62 
6-91 
equality for 
the year 
Mean of 12' 
m 0 n t h 1 y 
values 
7-40 
9 ■ 88 
12-82 
14-45 
4-32 
5 - 43 
6-98 
7-19 
