148 
MR. RUMKER’S OBSERVATIONS 
a Eridani. (Ann. Var. + 18".462.) — (Continued.) 
Superior Culmination. 
Inferior Culmination. 
1822. 
Barom. 
g 
JS 
H 
Microscopes. 
1822. 
Barom. 
B 
Q> 
JS 
H 
Microscopes. 
i. 
II. 
III. 
IV. 
i. 
II. 
III. 
IV. 
July 12 
25 
26 
inches. 
30.10 
30.21 
30.17 
o 
40 
32.4 
37 
o / // 
69 48 27 
>» >» 19 
» »> 25 
48 5.0 
„ 29.0 
» 26 
48 32 
„ 28.3 
„ 29.0 
/ ✓/ 
48 29 
„ 27 
„ 32 
July 25 
26 
inches. 
30.09 
30.22 
o 
51 
52.3 
o / // 
6 21 5.5 
6.5 
/ // 
21 7 
21 8.0 
21 9.0 
21 10.0 
/ // 
21 13.7 
21 12.0 
July 25 
.5. ..Mean... 
6 21 6.0 
-18 40.7 
21 7.5 
18 40.7 
21 9.5 
18 40.7 
21 12.8 
18 40.6 
July 21 
... Mean ... 
69 18 23.7 
+47.2 
48 20 
47.3 
48 29.8 
47.2 
48 29.3 
47.3 
Refract, and Reduct. 
Refract, and lleduct. 
Superior Culminat. 
Inferior Culminat... 
Half Diff. S. P. D. 
6 2 25.3 
2 26.8 
2 28.8 
2 32.2 
69 49 10.9 
6 2 25.3 
49 7.3 
2 26.8 
49 17.0 
2 28.8 
49 16.6 
2 32.2 
Mean of 4 Microscopes 31° 53' 22".3 by 5 Observ. 
31 53 22.8 
53 20.2 
53 24.1 
53 22.2 
182S. 
Barom. 
B 
S 
H 
Microscopes. 
1828. 
Barom. 
B 
a» 
s 
Microscopes. 
i. 
II. 
III. 
IV. 
i. 
II. 
III. 
IV. 
Feb. 21 
25 
27 
Mar. 3 
10 
11 
13 
19 
30 
Apr. 1 
inches. 
30.05 
29.89 
29.83 
29.85 
29.51 
29.76 
29.90 
29.71 
29.91 
29.67 
84 
96 
86 
73 
93.3 
80 
82.7 
95.5 
73 
76 
o / // 
32 7 17.5 
„ „ 13.5 
» » 13.0 
>i » 15.0 
» » 3.3 
,, „ 3.0 
» „ 2.7 
» „ 0.0 
» »> 3.4 
» „ 7-0 
/ ✓/ 
7 26 
„ 21.3 
» 19.8 
„ 21.0 
» 10. o 
» 7 
» 13.1 
„ 1.2 
„ 14.0 
» 12.0 
✓ // 
7 39.4 
„ 28.0 
„ 27.3 
„ 32.7 
» 25.3 
„ 19.5 
„ 21.1 
„ 14.3 
„ 23.5 
„ 26.0 
/ // 
7 24 
„ 22.8 
„ 23.4 
„ 22.0 
„ 6.6 
„ 8.0 
„ 10.0 
„ 3.0 
„ 11.4 
„ 12.1 
Feb. 21 
25 
Mar. 6 
31 
inches. 
30.02 
30.02 
29.62 
29.65 
58.5 
61 
57 
66.5 
o / // 
328 37 54 
„ 37 44 
„ 37 15.8 
„ 36 51.2 
/ // 
37 59 
» 45 
„ 24.5 
„ 0.0 
38 4.5 
37 49.0 
37 31.0 
37 1.2 
37 55.7 
37 47.0 
37 14.0 
36 54.7 
Mar. 5 
Refract. 
... Mean ... 
and Reduct. 
328 37 26.2 
-16 58.2 
37 32.1 
16 58.2 
37 36.4 
16 58.2 
37 27.8 
16 58.2 
328 20 28.0 
20 33.9 
20 38.2 
20 29.6 
Mean Inside Temperature 73°. 
Mean of 4 Microscopes 31° 53' 14".8 by 14 Observ. 
Mar. 10 
Refract. 
... Mean ... 
and Reduct. 
32 7 8.1 
-13.7 
7 14.6 
13.7 
7 25.7 
13.7 
7 14.3 
13.7 
Superior Culminat. 
Inferior Culminat... 
Half DifT. S. P. D. 
32 6 54.4 
328 20 28.0 
7 0.9 
20 33.9 
7 12.0 
20 38.2 
7 0.6 
20 29.6 
31 53 13.2 
53 13.5 
53 16.9 
53 15.5 
