142 
MR. RUMKER’S OBSERVATIONS 
2 a, Centauri. (Ann. Var. — 15".970.) — (Continued.) 
Superior Culmination. 
Inferior Culmination. 
1827. 
Barom. 
B 
Microscopes. 
1827. 
Barom. 
B 
Microscopes. 
G 
I. 
II. 
III. 
IV. 
G 
I. 
II. 
III. 
IV. 
Nov. 18 
inches. 
29.64 
8*2 
o / // 
30 8 21.6 
/ // 
8 16.9 
/ // 
8 30 
/ // 
8 28.2 
Nov. 21 
inches. 
29.75 
58.7 
330 32 44.8 
/ // 
32 48 
/ // 
32 46.3 
/ // 
32 46 
21 
29.81 
66.5 
» * 17 
„ 17.3 
„ 30 
» 26.2 
25 
30.113 
52 
„ 33 6 
33 9 
33 7.7 
33 10.5 
25 
30.02 
77 
„ „ 18 
„ 19.5 
„ 31 
„ 28.0 
29 
29.745 
61.5 
„ 32 33 
32 43.3 
32 35.2 
32 40 
Dec. 1 
29.85 
81.3 
j> m 19 
„ 12.3 
» 27.2 
„ 21.5 
Dec. 5 
29.96 
65 
„ 32 32.1 
32 30.6 
32 35.5 
32 32.3 
3 
29.99 
86.3 
J> 5> 19 
„ 11.5 
„ 26.0 
„ 23 
17 
30.154 
65.7 
„ 32 34 
32 34.3 
32 34.7 
32 31.0 
9 
29.79 
97 
» « 15.5 
„ 13.7 
„ 27.5 
„ 21.0 
18 
29.932 
72 
„ 32 12.0 
32 10.3 
32 18.1 
32 10.0 
13 
29.S0 
78.5 
51 55 15.5 
„ 9.6 
„ 21.5 
„ 24.6 
20 
29.65 
77.0 
„ 31 50 
„ 32 8.4 
31 56.0 
32 8.5 
31 55.0 
31 50 
17 
30.08 
82.5 
,, „ 17.0 
„ 12.1 
„ 24.8 
» 17-5 
22 
29.83 
69 
32 11.1 
32 9.0 
18 
29.86 
91 
» „ 10 
„ 14.8 
„ 27.5 
„ 16.6 
Dec. 8 
... Mean ... 
330 32 27.5 
32 30.0 
32 29.2 
32 28.6 
21 
29.81 
79.2 
„ „ lO.o 
„ 8.5 
» 23.2 
,, 19.1 
Refract, and Reduct. 
-10 49.3 
10 49.3 
10 49.3 
30 49.3 
29.88 
„ „ 6.0 
„ 3.2 
„ 11.4 
„ 11.0 
/ o 
330 21 38.2 
21 40.7 
21 39.9 
21 39.3 
Dec. 8 
30 8 15.4 
8 12.7 
8 25.5 
8 21.5 
... mean ... 
Refract, and Reduct. 
-41.6 
41.6 
41.6 
41.7 
Superior Culminat. 
Inferior Culminat ... 
30 7 33.8 
330 21 38.2 
7 31.1 
21 40.7 
7 43.9 
21 39.9 
7 39.8 
21 39.3 
Mean Inside Temperature 69°.3. 
Half Diff. S. P. D. 
29 52 57.8 
52 55.7 
53 2.0 
53 0.2 
Mean of 4 Microscopes 29° 52' 58".92 by 19 Observ. 
p 
Microscopes. 
1828. 
E. 
Microscopes. 
1828. 
Barom. 
Barom. 
I. 
n. 
III. 
IV. 
G 
I. 
ii. 
III. 
IV. 
inches. 
o / // 
/ // 
/ // 
inches. 
O / // 
/ // 
Aug. 15 
29.72 
58 
30 6 38.7 
6 36 
6 47.5 
6 39.5 
Aug. 15 
29.65 
47 
330 32 27.4 
32 27 
32 27.2 
32 23.6 
16 
29.57 
62.5 
„ „ 39.0 
,, 35 
„ 47.0 
» 45.5 
16 
29.65 
42.5 
„ 32 28.0 
32 24 
,32 26.1 
32 22.0 
24 
30.05 
64.2 
* » 40.0 
» 32.7 
„ 46.0 
„ 38.7 
17 
29.31 
61.5 
„ 31 44 
31 36 
31 39.6 
31 39.7 
25 
29.65 
73 
„ „ 34.0 
» 32.1 
„ 38.3 
„ 39.4 
23 
30.05 
37.3 
„ 32 40 
32 41.6 
32 39.5 
32 38.7 
29 
30.15 
71 
j> »» 39.0 
„ 30 
„ 42.2 
» 40.6 
26 
29.86 
47 
„ 32 20.8 
32 20.8 
32 21.0 
32 17.3 
30 
30.22 
70 
„ „ 34.5 
„ 31.2 
„ 45.0 
» 41.0 
27 
30.20 
35 
„ 32 45 
32 43.2 
32 45.7 
32 44.5 
Sept. 5 
29.91 
63.5 
n „ 34.3 
„ 30.0 
„ 40.0 
„ 41.2 
28 
29.25 
37 
„ 32 47.3 
32 46.0 
32 46.0 
32 42.7 
30 6 36.5 
Sept. 1 
30.20 
42.7 
„ 32 35.0 
32 32.3 
32 40 
32 33.3 
Aug. 25 
... Mean ... 
6 32.4 
6 43.7 
6 40.8 
-8.9 
8 
29.92 
42 
„ 32 28.2 
32 22.1 
32 28 
32 20.0 
Refract, and Reduct 
8.9 
8.9 
8.9 
Aug. 25 
330 32 28.4 
32 26 
32 28.1 
32 24.6 
Superior Culminat. 
30 6 27.6 
6 23.5 
6 34.8 
6 31.9 
... Mean ... 
Inferior Culminat... 
330 20 27.0 
20 24.6 
20 26.7 
20 23.1 
Refract, and Reduct. 
-12 1.4 
12 1.4 
12 1.4 
12 1.5 
330 20 27.0 
20 24.6 
20 26.7 
20 23.1 
Half Diff. S. P 
. D. 
29 53 0.2 
52 59.4 
53 4.1 
53 4.4 
IV 
[can of 4 ! 
Vlicroscopi 
?s 
....29° 53' 2".05 by 16 Observ. 
