Observed Positions oj Sun-Spots 
121 
Letter 
da 
dd 
b 
L 
L' 
Letter on 
next date 
1866 April 14— Continued 
b n 
s 
+ 23 ?I 
+ 5 21 " 
+ 5 °r 
+ 14 0 4' 
263° 
54 ' 
75 ° 
3 ' 
M. 
b 2 
24.8 
+ 486 
+ 12 0 
264 
25 
75 
34 
b 2 
April 15 3 V 
2 m 
a 
+ 0.1 
+ 120 
+ 0 56 
23I 
22 
58 
9 
a 1 
1.2 
+ 80 
- 1 35 
23I 
4 
57 
5 1 
b 1 
6.9 
+ 426 
+ x 5 x 9 
245 
34 
72 
21 
6, 
9.9 
+ 411 
+ 13 18 
247 
32 
74 
x 9 
a 
IO.3 
+ 43 1 
+ 14 18 
248 
32 
75 
19 
a 4 
Z> 2 
II *7 
+ 390 
+11 26 
248 
20 
75 
7 
April 17 o h 
49 m 
a 1 
—16.6 
+ 229 
+ 13 44 
218 
46 
72 
x 9 
a 2 
16.6 
+ 202 
+ 12 14 
218 
5 
7 1 
38 
s 
a 
n 
15.2 
i +3 
+ 230 
+ 237 
+ 13 x 4 
220 
22 
73 
55 
a 
a 3 
14.9 
+ 3 01 
+ 17 2 
222 
2 
75 
35 
a 1 ? 
a 4 
I 3-9 
+ 271 
+ 15 0 
222 
3 
75 
3 6 
a 2 ? 
April 20 23 11 55 111 
a 1 
-50.0 
+ 14 
+ 16 43 
178 
1 
73 
9 
a 
48.9 
- 32 
+ 13 37 
178 
25 
73 
33 
a 
a 2 
47.6 
~ 23 
+ I 3 3 1 
180 
11 
75 
T 9 
April 22 23 11 55 m 
a 
— 61.4 
— x 55 
+ 13 23 
151 
20 
74 
3 1 
b 
+ 45 - 1 
+ 45 ° 
+ 4 3 1 
276 
56 
200 
7 
b 1 
46.5 
+ 467 
+ 5 7 
279 
47 
202 
58 
April 27 o h 
IO m 
a 1 
— 22.6 
- 5 
+ 3 55 
198 
16 
I 9 I 
46 
a 2 
19.2 
+ 23 
+ 47 
201 
48 
T 95 
18 
a 
19.2 
+ 14 
+ 3 37 
201 
34 
i 95 
4 
a 3 
I 7 - 1 
+ 14 
+ 2 49 
203 
x 7 
196 
47 
a 4 
15.8 
+ 56 
+ 4 3 6 
205 
23 
198 
53 
a 5 
* 5-3 
+ 35 
+ 3 x 5 
205 
x 9 
198 
49 
a 6 
14.7 
+ 60 
+ 4 23 
206 
23 
I 99 
53 
a 7 
I 3-5 
+ 52 
+ 3 3 1 
207 
7 
200 
37 
a 8 
12.4 
+ 65 
+ 3 48 
208 
21 
201 
5 1 
May 4 23 11 
27m 
a 
— 62.7 
-156 
+ 12 11 
137 
3 1 
228 
5 i 
6 
+ 48.5 
+ 241 
— 4 20 
260 
23 
35 1 
43 
Letter 
da 
dd 
b 
L 
L' 
Letter on 
next date 
May 15 o h 
43 m 
«1 
— 53*3 
~ 37 °" 
- 5 ° 4 o' 
x 37 ° 
23' 
2 3 ° 
49 ' 
52.6 
-373 
- 6 3 
138 
16 
24 
42 
a 1 
47-7 
“377 
- 8 1 
x 45 
4 
3 1 
30 
a 2 
47. 1 
~3 6 3 
— 7 28 
146 
3 ° 
32 
56 
a 3 
47.0 
-370 
- 7 52 
146 
17 
32 
43 
a 4 
46.0 
-336 
- 6 23 
149 
3 
35 
29 
& 
+ 48.6 
+ 408 
+ 6 46 
255 
28 
141 
54 
May 17 o h 
i8 m 
a 
+ 59.8 
+ 113 
—12 21 
260 
21 
x 74 
37 
b 
a 1 
62.4 
+ x 59 
—10 16 
267 
x 3 
181 
29 
b 3 ?&4 
May 19 o h 
27m 
a 
“ 5 1 * 0 
— 481 
-13 30 
130 
37 
73 
2 
+ 38-7 
- 14 
-13 33 
228 
3 1 
170 36 
a 1 
6 2 
40.6 
+ 28 
-11 38 
231 
9 
x 73 
34 
6 
40.6 
- 3 
-13 26 
230 
39 
i73 
4 
a 
6 3 
46.7 
+ 71 
— 10 48 
238 
40 
181 
5 
ft 4 
47.2 
+ 86 
—10 4 
239 
28 
181 
53 
May 20 1 
h Q m 
a 1 
+ 25.3 
- 81 
-13 28 
213 
44 
170 
31 
a 
27.8 
- 69 
-13 29 
2l6 
14 
*73 
1 
a 2 
28.3 
- 90 
-14 50 
2l6 
21 
x 73 
8 
6 
5+5 
+ 469 
+10 40 
264 
1 
220 
48 
a 
May 24 2 h 
37m 
n 
a 
s 
+13.8 
+ 284 
+ 270 
+ 10 59 
207 
12 
221 
3 
a 
May 30 o h 
3 1 m 
n 
a 
s 
“59-7 
— 16 
~ 23 
+ 12 29 
I2 5 
3 
221 
53 
June 1 o h 
33 m 
n 
a 
s 
+ 62.9 
+161 
+ 143 
- 5 12 
25 1 
32 
16 
28 
a 
a 1 
63+ 
+ 120 
— 7 12 
252 
0 
16 
56 
a 2 
63+ 
+ 147 
- 5 4o 
253 
22 
18 
18 
a 1 
June 5 3 h 
i6 m 
n 
a 
s 
+ 16.4 
17.4 
— 12 
- 30 
— 4 26 
192 
34 
I 5 
T 3 
a 
