Observed Positions of Sun-Spots 
187 
Date 
No. of 
Spots 
Date 
No. of 
Spots 
Date 
No. of 
Spots 
Date 
No. of 
Spots 
Date 
No. of 
Spots 
1868 
July 26 
13 
Oct. 29 
3° 
May 20 
8 
Nov. 3 
12 
May 1 
3 
27 
IO 
Nov. 3 
20 
22 
5 
4 
15 
3 
2 
31 
7 
Dec. 19 
2 
23 
7 
6 
(13) 
4 
4 
Aug. 2 
8 
24 
i5 
24 
11 
13 
20 
9 
11 
9 
9 
27 
21 
14 
11 +(3) 
12 
L 5 
11 
2+ (4) 
1869 
31 
27 
19 
12 
14 
4 
12 
4 
Jan. 7 
15 
June 1 
37 
22 
12 
17 
5 
J 3 
8 
10 
8 
4 
(29) 
24 
13 
20 
9 
14 
12 
14 
19 
6 
(25) 
Dec. 3 
21 
25 
0 
16 
11 
16 
12 
9 
25 
9 
24 
26 
2 
17 
10 
27 
!3 
12 
x 9 
i5 
(20?) 
28 
3 
18 
12 
29 
18 
14 
11 
27 
9 
29 
6 
19 
11 
Feb. 1 
24 
16 
12 
3° 
8 
21 
7 
2 
15 
July 17 
24 
1870 
June 1 
(17) 
22 
9 
7 
IO 
18 
25 
Jan. 19 
25 
2 
i7 
23 
9 
!3 
x 3 
20 
26 
22 
20 
3 
11 
25 
10 
25 
9 
22 
14 
26 
17 
4 
13 
26 
12 
28 
11 
25 
5 
28 
20 
6 
4 
28 
5 
March 1 
IO 
Aug. 18 
25 
3i 
16 
8 
6 
3i 
2 
3 
9 
19 
30 
Feb. 4 
(18) 
10 
1 
Sept. 2 
11 
9 
12 
22 
iS 
7 
25 
12 
3 
5 
13 
12 
20 
23 
17 
10 
37 
13 
1 
6 
13 
16 
20 
24 
16 
11 
(34) 
i5 
2 
8 
9 
i7 
18 
26 
12 
23 
16 
i7 
3 
10 
i7 
18 
20 
28 
5 
26 
26 
!9 
7 
12 
18 
21 
18 
Sept. 7 
(32) 
March 6 
39 
20 
8 
13 
(13) 
22 
16 
9 
(22) 
9 
36 
2 3 
10 
14 
11 
25 
7 
11 
21 
14 
27 
25 
7 
i5 
13 
28 
11 
13 
21 
18 
32 
26 
4 
16 
11 
April 1 
6 
i7 
15 
24 
36 
27 
9 
i7 
7 
2 
(3) 
19 
12 
April 3 
37 
28 
11 
21 
8 
6 
(4) 
20 
9 
9 
37 
30 
i7 
26 
7 
10 
7 
23 
9 
13 
21 
July 1 
9 
28 
10 
i3 
IO 
24 
11 
23 
25 
2 
8 
29 
13 
i5 
20 
28 
19 
26 
28 
3 
6 
Oct. 1 
13 
18 
18 
3° 
19 
3° 
22 
4 
6 
3 
8 
23 
5 
Oct. 2 
16 
May 5 
28 
5 
5 
5 
7 
25 
9 
6 
20 
13 
35 
9 
0 
9 
4 
29 
20 
8 
13 
19 
35 
12 
2 
11 
6 
May 6 
28 
11 
7 
27 
27 
i7 
7 
16 
7 
8 
34 
16 
13 
3 ° 
20 
18 
8 
17 
6 
10 
3 6 
21 
10 
1120 +(’^2') days 
19 
10 
24 
10 
12 
37 
25 
7 
20 
11 
27 
26 
14 
34 
Nov. 2 
13 
13230+ (750) spots 
