144 
MR. RUMKER’S OBSERVATIONS 
(3 Centau ri. (Ann. Var. — 17".69.)— (Continued.) 
Superior Culmination. 
1827. 
Barom. 
Microscopes. 
s 
i. 
II. 
ill. 
IV. 
Nov. 19 
inches. 
29.62 
o 
65.3 
o / // 
30 43 4 
/ // 
43 9 
/ // 
43 18 
✓ // 
43 13 
25 
30.02 
75.7 
„ 43 3.7 
43 6 
„ 15.7 
43 9.7 
Dec. 1 
29.86 
81.9 
„ 43 5.0 
43 1.8 
„ 10.0 
43 14.0 
7 
29.99 
83.7 
„ 43 1.6 
43 0.0 
„ 10.8 
43 5.9 
8 
29.80 
93.8 
„ 42 56.0 
43 0.8 
„ 10.3 
43 8.1 
12 
29.60 
83.3 
„ 42 57.0 
42 58.4 
„ 8.3 
43 2 
16 
30.23 
76.5 
„ 43 0.0 
43 1.1 
„ 10.4 
43 18 
18 
29.86 
91 
„ 42 57.7 
42 59.5 
„ 8.3 
42 59.5 
21 
29.81 
73.5 
„ 42 53.0 
42 58.0 
„ 1.5 
43 9.5 
27 
30.12 
70.6 
„ 42 51.5 
42 55.5 
„ 7.4 
43 5.0 
28 
30.08 
72.5 
„ 42 53.0 
42 57.0 
„ 10.0 
43 8.1 
Dec. 1 1 
... Mean ... 
30 42 58.9 
43 0.6 
43 10.0 
43 8.1 
Refract, and Reduct. 
-40.5 
40.6 
40.5 
40.6 
Superior Culminat. 
30 42 18.4 
42 20.0 
42 29.5 
42 27.5 
Inferior Culminat... 
329 46 53.8 
47 2.8 
46 56.0 
46 53.7 
Half DifT. S. P. D. 
30 27 42.3 
27 38.6 
27 46.7 
27 46.9 
Inferior Culmination. 
1827. 
Dec. 5 
6 
15 
16 
18 
Barom 
inches. 
29.95 
30.03 
30.20 
30.21 
29.93 
65.3 
66.2 
62 
66.5 
72.5 
Dec. 10|... Mean .. 
Microscopes. 
i. 
II. 
in. 
IV. 
329 58 5"9.6 
/ // 
59 2 
59 0.5 
59 0.5 
„ 59 2.7 
59 5.9 
59 2.3 
59 3.4 
„ 59 5.0 
59 15.0 
59 10.7 
59 5.5 
„ 58 58.5 
59 4.2 
59 5.0 
58 58.0 
„ 58 45.0 
58 48.7 
58 46.0 
58 43.0 
329 58 58.2 
59 7.2 
59 0.4 
58 58.1 
-12 4.4 
12 4.4 
12 4.4 
12 4.4 
329 46 53.8 
47 2.8 
46 56.0 | 
46 53.7 
Mean Inside Temperature 71°.7. 
.Mean of 4 Microscopes 30° 27' 43 // .64 by 16 Observ. 
Mean S. P. D. of p Centanri, Jan. 1, 1828 30° 27' 37". 7 by 29 Observ. 
n Argus. (Ann. Var. — 18".76.) 
Superior Culmination. 
Inferior Culmination. 
1822. 
Barom 
i 
B 
6 
Microscopes. 
1822. 
Barom 
O 
e 
Microscopes. 
i. | ii. 
ill. 
IV. 
i. 
II. 
III. 
IV. 
May 2 
2i 
inches. 
29.96 
29.76 
53 
62 
3° 14 37.4 
31 14 35.0 
/ // 
14 27.5 
14 13.5 
/ // 
14 57.0 
14 53.2 
14 52.5 
14 52.0 
May 2‘ 
2( 
2t 
| 3C 
inches. 
29.78 
29.84 
30.04 
29.63 
50 
44 
44 
51 
o / // 
329 0 9.5 
329 0 19.0 
329 0 15.0 
328 59 58.7 
/ // 
59 51.0 
59 58.2 
0 1.3 
59 47.8 
/ // 
0 27.0 
„ 36.2 
„ 35.0 
„ 13.4 
/ // 
0 18.0 
„ 17.7 
„ 26.7 
„ 7.0 
May 21 
Refract 
.3. ..Mean.. 
. -f Reduct. 
31 14 36.2 
-1 50.4 
14 20.5 
1 50.4 
14 55.1 
1 50.4 
14 52.2 
1 50.4 
Superior Culminat. 
Inferior Culminat.. 
Half DifT. S. P. D. 
31 13 11.7 
328 46 22.4 
13 11.8 
46 6.5 
13 12.4 
46 39.9 
13 18.8 
46 24.2 
May 27 
Refract 
... Mean ... 
.and Reduct 
329 0 10.5 
-13 48.1 
59 54.6 
13 48.1 
0 28.0 
13 48.1 
0 12.3 
13 48.1 
31 13 11.7 
j 13 11.8 
Mean of 
13 12.4 
Microsco 
13 18.8 
pes 
328 46 22.4 | 46 6.5 | 46 39.9 
Observ. 
46 24.2 
1828. 
Barom. 
f 
p 
Microscopes. 
1828. 
Barom. 
£ 
S 
e 
Microscopes. 
I. 
11. 
III. 
IV. 
i. 
II. 
III. 
IV. 
June 4j 
12 
13 
17 
inches. 
29.94 
29.97 
30.02 
30.03 
o 
49 
52 
49 
54 
31 26 4.7 
„ 17.1 
II h 11-4 * 
„ n 9.8 
26 10.8 
„ 12.2 
„ 13.5 
„ 1 1 -5 
26 21 
,, 24 
24.4 
„ 17.0 
/ // 
26 5.4 
» 16.4 
„ 18.2 
„ 12.1 
June 12 
17 
19 
inches. 
30.05 
30.11 
30.34 
o 
29 
39 
34 
o / // 
329 16 30.0 
„ „ 2.0 
„ „ 18.0 
/ // 
16 40.5 
„ 11.0 
„ 27.0 
16 42 
„ 8.0 
„ 26 
16 31.3 
15 59.0 
16 14.0 
Juncl6 
Refract, 
.. Mean ... 
and Reduct. 
329 16 17.0 
-16 9.5 
16 26.2 
16 9.5 
16 25.4 
IC 9.5 
16 14.8 
16 9.5 
0 5.3 
June 1 1 Mean... 
Refract, and KecJuct. 
31 26 11.0 
+4.5 J 
2G 12.0 
4Ji 
26 21.6 
4.5 j 
26 13.0 
4.5 
329 0 7.5 
0 16.7 
0 15.9 
31 26 15 J j 26 16.5 
329 0 7.5 0 16.7 
26 26.1 
0 15.9 
26 17.5 
0 5.3 
Inferior Culmins 
Half DifT. & T. 
, 
Mean Inside Temperature 45°. 
Mean of 4 Microscopes 31° 13' 3".8 by 7 Observ. 
D. j 
31 13 4.0 
12 59.9 
13 5.1 
13 6.2 
Mean S. I\ I). of r> Argus, Jan. 1 , 1828 31° 13' 18".7 by 13 Observ. 
