108 
MR. RUMKER’S OBSERVATIONS 
y Hydri. (Ann. Var. + 10".7*) — (Continued.) 
Superior Culmination. 
Inferior Culmination. 
1828. 
Barom. 
§ 
o 
G 
Microscopes. 
1828. 
Barom. 
§ 
s 
g 
Microscopes. 
i. 
n. 
III. 
IV. 
i. 
II. 
III. 
IV. 
Aug. 1 
< 
3 
fi 
8 
inches 
30.234 
30.25 
30.22 
30.07 
o 
35 
36.5 
3S 
40 
o / // 
15 29 6 
„ „ 8 
„ „ 8.8 
» „ 3.0 
» » 4.5 
/ // 
29 13.2 
„ 12.2 
„ 16.3 
„ 10.5 
„ 8.0 
/ // 
29 12 
„ 8.7 
„ 10.8 
„ 3.5 
„ 8.0 
/ // 
29 11 
„ 12 
„ 10.2 
„ 4.0 
„ 7-0 
July 2G 
Aug. 2 
3 
8 
11 
1 inches 
: 30.22 
30.18 
30.18 
30.04 
30.21 
o 
49 
47 
47.3 
35 
46.2 
o / // 
345 2 9.0 
» » 12.5 
99 99 13.0 
„ „ 6.5 
» „ 4.7 
✓ n 
2 13.3 
„ 14.0 
„ 15.3 
„ 6.7 
„ 7.1 
2 13.0 
„ 16.4 
„ 16.7 
„ 10.3 
» 7.0 
/ // 
2 3.3 
2 5.7 
2 10.0 
2 2.0 
1 59 
Aug. 1 ... Mean ... 
Refract and lteduct. 
15 29 6.1 
-1 12.0 
29 12.0 
1 12.0 
29 8.6 
1 12.0 
29 8.8 
1 12.0 
Aug. 4 
Refract. 
... Mean... 
and Reduct. 
345 2 9.1 
-2 34.1 
2 11.3 
2 34.1 
2 12.7 
2 34.1 
2 4.0 
2 34.1 
Superior Culminnt. 
Inferior Culminat... 
Half Diff. S. P. D. 
15 27 54.1 
344 59 35.0 
28 0.0 
59 37.2 
27 56.6 
59 38.6 
27 56.8 
59 29.9 
344 59 35.0 
59 37.2 
59 38.6 
59 29.9 
Mean of 4 Microscopes 15° 13' 10".85 by 10 Observ. 
15 14 9.55 
14 11.4 
14 9.0 
14 13.45 
1828. 
Barom. 
O 
JZ 
H 
Microscopes. 
1828. 
Barom. 
S 
8 
JZ 
H 
Microscopes. 
i. 
II. 
III. 
IV. 
i. 
II. 
III. 
IV. 
inches. 1 0 
Aug. 11 211.80(1 43.6 
1330.055 40 
15 29.675 44.5 
16 29.65 43 
111 30.102 35 
o / // 
15 28 59 
„ 29 1.5 
„ 29 0.0 
„ 28 58 
„ 28 54 
/ // 
29 6.5 
„ 5 
» 5 
»» 5 
», o 
/ // 
29 2.5 
„ 1.5 
„ 5.0 
„ 2.0 
28 58.7 
/ // 
29 0.5 
„ 3.6 
„ 4.0 
„ 4.7 
28 57.0 
Aug. 14 
15 
16 
17 
20 
inches. 
30.00 
29.72 
29.57 
29.48 
30.00 
52 
58 
60.5 
63 
63 
345 2 1.2 
„ 1 56.0 
„ 1 58.0 
„ 1 52 
„ 2 0 
/ // 
2 2.0 
1 57.0 
1 56.4 
1 54.0 
2 0.5 
/ // 
2 2 
1 56.4 
1 58.0 
1 53 
2 0.3 
/ // 
1 56 
„ 53 
„ 53 
„ 51 
„ 56.7 
Aug. 14 .4... Mean... 
Refract, and Reduct. 
15 28 58.5 
-1 12.2 
29 4.6 
1 12.2 
29 1.9 
1 12.2 
29 2.0 
1 12.2 
Aug. 17 
Refract. 
.8. ..Mean... 
and Ileduct. 
345 1 57.4 
-2 25.2 
1 58.0 
2 25.2 
1 57.9 
2 25.2 
1 53.9 
2 25.2 
Superior Culminat. 
Inferior Culminat... 
15 27 46.3 
344 59 32.2 
27 52.4 
59 32.8 
27 49.7 
59 32.7 
27 49.8 
59 28.7 
314 59 32.2 
59 32.8 
59 32.7 
59 28.7 
Mean of 4 Microscopes 15° 14' 8".97 by 10 Observ. 
Half Diff. S. P. I). 
15 14 7.05 
14 9.8 
14 8.5 
14 10.5 
1828. 
Barom. 
G 
Microscopes. 
1828. 
Barom . 
O 
& 
Microscopes. 
i. 
II. 
III. 
IV. 
I. 
II. 
in. 
IV. 
'inches. 
Aug. 22 29.99 
23 30.05 
25 29.81 
26 29.87 
4?.0 
40 
14 
11 
O ! // 
15 28 56 
„ „ 55.7 
*> n *4.0 
„ „ 48.8 
§ // 
29 0 
29 1.4 
28 59 
29 0 
/ // 
29 2 
29 3 
28 58.8 
28 57.5 
t // 
28 59 
„ 56 
„ 58 
„ 51.5 
Aug. 21 
24 
25 
inches. 
30.08 
30.05 
29.71 
o 
57 
57 
68 
345 1 55 
„ „ 47.4 
„ „ 47.3 
1 5-R8 
„ 55.7 
„ 47.0 
1 55.0 
„ 56.0 
„ 47.2 
/ it 
1 48.0 
„ 48 
„ 39.6 
Aug. 24!.6...Mean... 
Refract, and Reduct. 
345 1 49.54 
-2 24.8 
1 51.3 
2 24.8 
1 52.1 
2 24.8 
1 44.9 
2 24.8 
Aug. 2 1 ... Mean ... 
Refract. + Ileduct 
Superior Culminat 
Inferior Culminat... 
Half Diff. S. P. D. 
15 28 53.6 
-1 12.7 
29 0.8 
1 12.3 
29 0.4 
1 12.7 
28 57.0 
1 12.3 
344 59 24.7 
59 26.5 
59 27.3 
59 20.1 
15 27 10.9 
341 59 24.7 
27 18.5 
59 26.5 
27 47.7 
59 27.3 
27 44.7 
59 20.1 
Mean of 4 Microscopes 15° 14' 10".39 by 7 Observ. 
15 15 8.1 
14 11.0 
14 10.1 
14 12.3 
