88 
MR. RUMKER’S OBSERVATIONS 
1 y Octantis. (Ann. Var. -f- 19".94.) 
Superior Culmination. 
Inferior Culmination. 
1827. 
Barom. 
E 
Microscopes. 
1827. 
Barom. 
g 
Microscopes. 
s 
I. 
II. 
hi. 
IV. 
H 
i. 
ii. 
III. 
IV. 
June 23 
inches. 
29.84 
O 
47 
o / // 
7 17 39 
17 46.5 
/ // 
17 40 
/ // 
17 58 
June 18 
inches. 
30.232 
o 
46 
o t n 
353 15 7.5 
/ // 
15 13.5 
15 9.3 
/ // 
15 14 
2fi 
30.05 
45 
7 17 46 
17 51.3 
17 50.4 
18 5 
27 
30.01 
50 
353 15 8.4 
15 12.0 
15 18.0 
15 11.1 
June 21 
.5. ..Mean... 
7 17 42.5 
17 48.9 
17 45.2 
18 1.5 
June 22 
.5. ..Mean... 
353 15 8.0 
15 12.7 
15 13.68 
15 12.6 
Refract. + Reduct. 
-1 22.0 
1 22.0 
1 22.0 
1 22.0 
Refract. — Reduct. 
-1 41.5 
1 41.5 
1 41.47 
1 41.5 
Superior Culminat. 
7 16 20.5 
353 13 26.5 
16 26.9 
16 23.2 
16 39.5 
353 13 26.5 
13 31.2 
13 32.21 
13 31.1 
Inferior Culminat... 
13 31.2 
13 32.2 
13 31.1 
Half Diff. S. P. D. 
7 1 27.0 
1 27.85 
1 25.5 
1 34.2 
Mean of 4 Microscopes 
7° P 28".64 by 4 Observ. 
1828. 
Barom. 
Microscopes. 
1828. 
Barom. 
6 
Microscopes. 
c- 1 
i. 
II. 
III. 
IV. 
H 
I. 
II. 
ill. 
IV. 
June 10 
inches. 
29.71 
o 
do .5 
o / // 
7 16 19.5 
16 28 
16 25.5 
16 28.5 
June 11 
inches. 
29.79 
o 
50 
o / // 
353 13 8.3 
/ // 
13 6.5 
/ // 
13 3 
/ // 
13 5.8 
12 
30.05 
29 
„ „ 21.0 
„ 30 
„ 27.7 
„ 32.7 
13 
30.02 
42 
„ 13 16.0 
„ 12.5 
13 1.0 
„ 11.0 
13 
30.00 
31 
„ „ 28.7 
„ 30 
if 25.8 
„ 35.0 
14 
29.97 
63 
„ 13 5.0 
„ 7.4 
13 3.7 
„ 1,3 
16 
30.00 
38 
„ „ 18.0 
„ 25 
„ 23 
„ 31.0 
„ 13 12.6 
„ 14.8 
13 11.45 
„ 16.5 
17 
30.13 
36 
„ „ 20.0 
„ 26.5 
„ 27 
„ 32.0 
17 
30.03 
52 
„ 1 3.0 
„ 3.2 
12 57.0 
„ 3.4 
18 
30.32 
38.2 
„ „ 21.7 
„ 27.4 
„ 25 
» 32 
18 
30.20 
50 
„ 1 1.8 
„ 6.7 
13 1.0 
„ 4.0 
19 
30.33 
35 
„ „ 26.7 
„ 28.1 
„ 28.2 
„ 37 
19 
30.34 
49.5 
„ 0 7.5 
„ 9.2 
13 5.5 
„ 7.0 
20 30.26 
34 
» » 25.0 
„ 25.8 
„ 26 
„ 31.1 
20 
30.27 
52 
„ 0 7.0 
„ 9-7 
13 1.0 
„ 5.0 
21 
30.27 
37.2 
„ „ 25.0 
„ 28.0 
„ 26.6 
„ 34.1 
22 
30.15 
68 
„ 0 6.5 
„ 6.5 
13 2.5 
„ 5.0 
22 30.21 
29 30.13 
54.5 
49 
„ „ 18.0 
„ „ 12.2 
„ 16.4 
„ 19.0 
„ 18.5 
„ 16.0 
„ 28.5 
a 25.2 
26 
30.25 
57 
„ 0 8.5 
„ 3.2 
13 1.0 
„ 1.0 
June 18 
... Mean ... 
353 13 7.1 
13 7.2 
13 1.7 
13 4.8 
June 18 
|... Mean... 
7 16 21.4 
16 25.8 
16 24.5 
16 31.5 
Refract 
and Reduct. 
-1 21.3 
1 21.4 
1 21.3 
1 21.4 
Refract, and Reduct. 
— 1 41.9 
1 42.0 
1 41.9 
1 42.0 
353 11 45.8 
11 45.8 
11 40.4 
11 43.4 
7 14 39.5 
14 43.8 
14 42.6 
14 49.5 
Superior Culminat. 
Inferior Culminat... 
353 11 45.8 
11 45.8 
11 40.4 
11 43.4 
Half Diff. S. P. D. 
7 1 26.8 
1 29.0 
1 31.1 
1 33.1 
Mean of 4 Microscopes 
7° P 30".0 by 21 Observ. 
Mean S 
. P. D. of 1 7 
Octantis, Jan. 1, 1828 . . 
7° 1' 29 ".77 by 25 Observ. 
