98 
PROFESSOR A. SCHUSTER ON THE PERIODICITIES OF SUNSPOTS. 
Table IV.—Intensity and Phase of Periodogram (continued). 
I. 
Period 
in 
years. 
ii. 
1750-1900. 
III. 
1750-1826. 
IY. 
1826-1900. 
Y. 
Beginning 
of second 
period. 
VI. 
1750-1900. 
VII. 
1750-1826. 
VIII. 
1826-1900. 
6*25 
5 x 10 3 
23 x 10 3 
13 x 10 3 
28° 
76° 
295° 
6-125 
24 
— 
— 
— 
62 
6 
102 
24 
136 
— 
154 
105 
173 
5-93 
54 
— 
— 
_ 
202 
5-875 
122 
— 
— 
_ 
293 
5-75 
236 
3 
397 
_ 
63 
346 
68 
5-625 
128 
55 
420 
— 
249 
35 
239 
5-5 
224 
62 
259 
_ 
37 
78 
18 
5-375 
129 
— 
_ 
160 
5-25 
15 
28 
33 
— 
238 
174 
295 
5-125 
31 
— 
— 
— 
286 
5 
12 
44 
2 
_ 
305 
310 
147 
4-875 
97 
152 
14 
_ 
7 
21 
321 
4-75 
99 
170 
49 
_ 
86 
56 
153 
4-625 
70 
132 
8 
— 
108 
1 22 
33 
4-5 
25 
56 
2 
_ 
159 
173 
79 
4-375 
41 
41 
19 
_ 
305 
278 
341 
4-25 
9 
59 
14 
— 
355 
341 
145 
4-125 
109 
81 
34 
_ 
54 
57 
50 
4 
29 
57 
33 
— 
25 
73 
323 
3-875 
— 
12 
6 
_ 
_ 
0 
907 
3-75 
24 
14 
41 
— 
89 
22 
121 
3 - 67 
— 
— 
61 
— 
— 
_ 
5 
3 
1 
9 
— 
I able A’. —Intensity of Periodogram 5H8—1*89 years. 
I. 
II. 
I. 
11 . 
I. 
II. 
Period 
Intensity 
Period 
Intensity 
Period 
Intensity 
in 
of 
in 
of 
in 
of 
years. 
periodogram. 
years. 
periodogram. 
years. 
periodogram. 
5-18 
23 x 10 3 
3-78 
121 x10 3 
2-49 
1 x 10 3 
5-08 
10 
3-69 
75 
2-44 
13 
4-98 
51 
3-59 
' 18 
2-39 
21 
4-88 
133 
3-49 
22 
2-34 
14 
4-78 
167 
3-39 
13 
2-29 
19 
4-68 
105 
3-29 
5 
2-24 
17 
4-58 
15 
3-19 
6 
2-19 
26 
4-48 
47 
3-09 
29 
2-14 
39 
4-38 
123 
2-99 
1 
2-09 
21 
4-28 
79 
2-89 
16 
2-04 
30 
4-18 
29 
2-79 
46 
1-99 
16-1 
4-08 
43 
2-69 
49 
1-94 
54-2 
3-98 
7 
2-59 
43 
1-S9 
25-3 
3-88 
39 
2*54 
11 
