92 
MR. RUMKER’S OBSERVATIONS 
7T Octantis. (Ann. Var. — 15".67.) 
Superior Culmination. 
Inferior Culmination. 
d 
Microscopes. 
1822. 
i 
Microscopes. 
Barom. 
Barom. 
xs 
H 
I. 
n. 
III. 
IV. 
e 
I. 
ii. 
III. 
IV. 
inches. 
o / // 
45 38 3 
/ // 
/ 
/ // 
inches. 
o _ ' // „ 
/ // 
/ // 
Aug. 7 
30.181 
5°7.7 
37 59 
37 53.3 
38 2.7 
Aug. 7 
30.276 
46 
30 16 46.8 
16 46.6 
16 56 
16 46.3 
Refract. and Reduct. 
-2 3.1 
2 3.1 
2 3.1 
2 3.1 
10 
30.176 
46 
„ „ 42.7 
„ 52 
17 0.6 
„ 57.0 
Superior Culminat. 
45 35 59.9 
35 55.9 
35 50.2 
35 59.6 
11 
30.022 
41.5 
„ „ 45.0 
„ 50.2 
16 55.0 
„ 52 
Inferior Culminat... 
30 15 43.9 
15 49.3 
15 53.0 
15 49.7 
12 
29.90 
38.7 
„ „ 49 
„ 57.0 
16 58.5 
„ 52 
Half Diff. S. 1 
. D. 
7 40 8.0 
40 3.3 
39 58.0 
40 5.0 
Aug. 10 
... Mean ... 
30 16 45.9 
16 51.4 
16 55.0 
16 51.8 
Refract 
— Reduct. 
-1 2.0 
1 2.1 
1 2.0 
1 2.1 
i 30 15 43.9 
15 49.3 
15 53.0 
15 49.7 
Mean S. P. D. of sr Octantis, Jan. 1, 1828 7° 40' 3". 7 by 5 Observ. 
(3 Octantis. (Ann. Var. — 18".42.) 
Superior 
Culmination. 
Inferior 
Culmination. 
1823. 
Barom. 
£ 
Microscopes. 
1823. 
Barom. 
£ 
Microscopes. 
i. 
II. 
ill. 
IV. 
-G 
H 
i. 
II. 
III. 
IV. 
June 2 
inches. 
29.98 
15.7 
o / 
143 41 
✓/ 
8 
/ 
42 
✓/ 
9.3 
/ 
42 
// 
5.8 
/ 
41 
// 
36.3 
June 9 
inches. 
29.71 
o _ 
61.2 
o / 
128 17 
19.6 
/ // 
18 31.2 
18 
// 
6.7 
17 52 
Refract 
— Reduct. 
-3.4 
3.4 
3.4 
3.4 
15 
29.69 
65 
128 17 
17.2 
18 42.0 
18 
9.2 
17 46.6 
Superior Culminat. 
143 41 
4.6 
42 
5.9 
42 
2.4 
41 
32.9 
June 12 
... Mean ... 
128 17 
18.4 
18 36.6 
18 
7.9 
17 49.3 
Inferior Culminat... 
128 14 
24.0 
15 
42.1 
15 
13.5 
14 
54.8 
Refract, and Reduct. 
—2 
54.4 
2 54.5 
2 54.4 
2 54.5 
Half Dilf. S. P 
D. 
7 43 
20.3 
43 
11.9 
43 24.4 
43 
19.1 
128 14 24.0 
15 42.1 
15 
13.5 
14 54.8 
Mean of 4 Microscopes 
...7° 43' 
1 8".92 by 3 Observ. 
1826. 
Barom. 
jj 
Microscopes. 
1826. 
g 
Microscopes. 
Cj 
JZ 
H 
i. 
II. 
III. 
IV. 
i: 
H 
i. 
II. 
III. 
IV. 
June 8 
inches. 
29.91 
O. 
36.5 
8 25 
// 
6 
25 
// 
6.5 
25 
// 
2.5 
25 
/✓ 
15.6 
June 7 
inches. 
29.73 
59.5 
3o2 59 29.5 
59 23.9 
59 24.9 
59 25.0 
9 
29.97 
35 
>» » 
13 
„ 
12.7 
24 
55.5 
99 
11.5 
8 
29.89 
53 
99 99 
25.0 
„ 26.5 
99 
16.6 
„ 21.6 
13 
30.20 
32.5 
99 99 
9.1 
99 
12.7 
25 
12.8 
99 
21 
9 
29.92 
51 
99 99 
27.0 
„ 23.0 
99 
27.0 
„ 22.6 
17 
29.85 
45.0 
99 99 
11.0 
99 
8.0 
25 
1.0 
99 
18.3 
10 
30.03 
51 
99 99 
27.5 
„ 30 
99 
28.5 
„ 29.5 
19 
30.01 
11.0 
99 99 
12.7 
99 
3.6 
25 
0.0 
99 
15.6 
11 
14 
30.09 
30.18 
48 
47 
99 99 
23.3 
29.0 
„ 21 
„ 34.5 
99 
22.1 
25.0 
„ 27.0 
„ 34.0 
.'2... Mean... 
8 25 
10.4 
25 
8.7 
25 
2.4 
25 
16.4 
99 99 
” 
Refract, and Reduct. 
-1 
5.2 
1 
5.3 
1 
5.2 
1 
5.3 
June 10 
... Mean ... 
352 59 
26.9 
59 26.5 
1 59.8 
59 
1 
24.0 
59.7 
59 26.6 
1 59.8 
Superior Culminat. 
Inferior Culminat... 
8 21 
5.2 
24 
3.4 
23 
57.2 
24 
11.1 
Refract, and Iteduct. 
— 1 
59.7 
352 5 7 
27.2 
57 
26.7 
57 
24.3 
57 
26.8 
352 57 27.2 
57 26.7 
57 
24.3 
57 26.8 
Half. Ditf. S. 1 
>. D. 
7 43 
19.0 
43 
18.3 
43 
16.5 
43 
22.1 
Mean of 4 Microscopes... 
7° 43' 18".99 by 11 Observ. 
