8G 
MR. RUMKER’S OBSERVATIONS 
3 y Octantis. (Ann. Var. + 20".01.) 
Superior Culmination. 
Inferior Culmination. 
1S27. 
Barom. 
a 
-C 
H 
Microscopes. 
1827. 
Barom. 
H 
0 
e 
Microscopes. 
i. 
II. 
III. 
IV. 
1. 
11. 
III. 
IV. 
June 17 
23 
26 
inches. 
30.24 
29.84 
30.05 
o 
10 
47 
45 
O / // 
7 5 27 
„ „ 21.8 
» „ 27.4 
/ // 
5 31.3 
„ 32.0 
„ 33.0 
✓ // 
5 30.0 
„ 29.8 
„ 28.0 
/ // 
5 41.0 
„ 44.0 
„ 45 
June 18 
23 
27 
inches. 
30.23 
29.83 
30.01 
0 
46 
54.5 
50 
353 27 32.0 
» „ 32.7 
„ „ 31.0 
/ // 
27 35.5 
„ 34.9 
„ 36.1 
/ ✓/ 
27 27.0 
„ 30.0 
„ 31.1 
/ // 
27 36.4 
„ 36.3 
„ 37.0 
June 21 
Refract. 
.5... Mean... 
and Reduct. 
7 5 25.4 
-1 22.60 
5 31.3 
1 22.7 
5 29.3 
1 22.7 
5 43.3 
1 22.7 
June 22| ...Mean... 
Refract, and Reduct. 
353 27 31.9 
-1 38.80 
27 35.5 
1 38.8 
27 29.4 
1 38.7 
27 36.6 
1 38.8 
Superior Culminat. 
Inferior Culminat... 
Half Diff. S. P. D. 
7 4 2.8 
353 25 53.1 
4 8.6 
25 56.7 
4 6.6 
25 50.7 
4 20.6 
25 57.8 
353 25 53.1 
25 56.7 25 50.7 
25 57.8 
Mean of 4 Microscopes 6° 49' 7".55 by 6 Observ. 
6 49 4.8 
49 6.0 
49 8.0 
49 11.4 
1828. 
Barom. 
o 
H 
Microscopes. 
1828. 
Barom. 
E 
*4 
O 
-c 
H 
Microscopes. 
I. 
II. 
in. 
IV. 
I. 
11 . 
in. 
IV. 
June 10 
11 
13 
16 
17 
18 
19 
20 
22 
26 
inches. 
29.71 
29.94 
30.00 
30.00 
30.13 
30.32 
30.28 
30.33 
30.21 
30.30 
3°5.5 
33 
30 
38 
36 
38.2 
36 
35 
54.5 
45 
o / // 
7 3 52 
„ 4 1.5 
„ 4 5.7 
„ 3 55.0 
„ 3 58 
„ 4 1.0 
» 4 2.8 
„ 4 4.0 
„ 3 58.7 
„ 4 0.5 
/ // 
4 6.0 
„ 6.5 
„ 12.0 
j» 4.5 
„ 7.5 
„ 3.8 
„ 10.5 
„ 9.3 
» 4.5 
„ 5 
/ // 
4 2.4 
4 4.4 
4 4.3 
3 57.7 
4 2.2 
4 1.7 
4 5.2 
4 1.0 
3 58.7 
4 1.0 
/ // 
4 6.5 
„ 11.2 
„ 15.0 
„ 5.8 
„ 1P7 
„ 84 
„ 11.0 
„ 10.0 
„ 9-0 
„ 11.0 
June 11 
16 
17 
18 
19 
20 
26 
July 1 
2 
inches. 
29.79 
29.81 
30.03 
30.20 
30.34 
30.27 
30.22 
29.75 
29.84 
5°0 
55 
51.5 
49.5 
49.5 
52 
59 
55 
353 25 27.7 
» » 24.3 
» » 25.2 
» » 30 
„ „ 30 
» » 26.3 
» » 20 
» » 25 
„ „ 31.7 
/ // 
25 30 
„ 28.5 
„ 26 
„ 33 
„ 33.7 
„ 30.5 
„ 19.3 
„ 26.2 
„ 30 
/ // 
25 32 
„ 27.0 
„ 20.5 
„ 29 
„ 31.0 
„ 27 
„ 17.2 
„ 25.2 
„ 31.0 
/ // 
25 35 
„ 28.2 
„ 27.5 
„ 31.0 
„ 30.7 
„ 28 
„ 18.2 
„ 26.1 
„ 32.3 
June 21 
... Mean ... 
353 25 26.7 
-1 20.9 
25 28.6 
-1 21.0 
25 26.6 
-1 20.9 
25 28.5 
-1 21.0 
June 17 
.2. ..Mean... 
7 3 59.92 
-1 41.78 
4 6.96 
1 41.78 
4 1.9 
1 41.8 
4 9.96 
1 41.78 
Refract, and Reduct. 
Refract, and Reduct. 
Superior Culminat. 
Inferior Culminat... 
Half Diff. S. P. D. 
353 24 5.8 
24 7.6 
24 5.7 
24 7.5 
7 2 18.14 
353 24 5.8 
2 25.18 
24 7.6 
2 20.1 
24 5.7 
2 28.18 
24 7.5 
6° 49' 8". 13 by 19 Observ. 
6 49 6.17 
M 
49 8.8 
ean of 4 I 
49 7.2 
dicroscopc 
49 19.35 
s 
Mean S. P. D. of 3 y Octantis 6° 49' 7". 9 9 by 25 Observ. 
