152 MR. RUMKER’S OBSERVATIONS AT PARAMATTA. 
Page 46. — Obliquity of the Ecliptic deduced from the solstices observed at 
Paramatta : 
V 
ith the Repeating Circle. 
With the Mural Circle. 
Year of 
Observation. 
Observed Mean 
Obliquity. 
Reduction 
to Jan. 1, 
1828. 
Mean Obliquity, 
Jan. 1, 1828. 
Year of 
Observation. 
Observed Mean 
Obliquity. 
Reduction 
to Jan. 1, 
1828. 
Mean Obliquity, 
Jan. 1, 1828. 
Jan. 1822 
1823 
23 27 41.96 
„ „ 44.12 
// 
-2.7 
-2.25 
22 27 39.26 
„ „ 41.87 
Jan. 1823 
23 27 44.36 
// 
-2.25 
o / // 
23 27 42.11 
1821 
„ „ 42.67 
-1.80 
„ „ 40.87 
1S27 
„ „ 44.52 
-0.45 
„ „ 44.07 
1827 
99 99 42.63 
-0.45 
4^ 
to 
CO 
1828 
„ „ 39.35 
0 
» „ 39.35 
1828 
„ „ 43-19 
0.0 
„ „ 43.19 
1829 
» » 38.75 
+0.45 
„ „ 39.20 
23 27 40.77 
Mean 
23 27 42.49 
The error is on the side of the Repeating Circle. 
Omitted in page 111.] y Piscis Volantis. 
Superior Culmination. 
Inferior Culmination. 
1828. ■ Barora. 
Therm. 
Microscopes. 
1828. 
Barom. 
Therm. 
Microscopes. 
II. 
III. 
IV. 
i. 
11. 
III. 
IV. 
> inches. 
/ // 
✓ // 
inches. 
o 
o / // 
/ 
April 4 30.01 
53.3 
20 0 43 
0 37 
0 52 
0 40.7 
Apr. 7 
30.05 
53 
340 30 56 
31 0.2 
31 1.4 
31 2.0 
5 30.03 
69 
„ „ 41.7 
,, 41.7 
„ 41.7 
„ 50.3 
8 
29.83 
55 
99 99 55 
30 55.5 
31 0.2 
30 58.5 
6 30.20 
62.5 
„ „ 42 
„ 40.5 
„ 48.7 
„ 39.7 
9 
29.73 
53 
„ 49.7 
30 49.7 
30 55 
30 55.0 
7 30.14 
66.5 
„ „ 39 
„ 39 
„ 50.2 
„ 39.2 
10 
29.85 
47.5 
99 99 58 
31 6.6 
30 57 
31 0.0 
lo 29.75 
71 
„ „ 34.8 
„ 36.1 
„ 44.7 
„ 35.1 
11 
29.88 
49.7 
„ „ 48.4 
30 58.0 
30 56.5 
30 54.5 
11 29.84 
64 
» „ 33.9 
„ 28.2 
„ 37.9 
„ 29.7 
Apr. 9 
... Mean ... 
340 30 53.4 
30 58 
30 50.0 
30 58 
12 29.95 
6325 
„ „ 30.0 
„ 27.5 
„ 40.1 
„ 28.9 
Refract, and Reduct. 
-4 13.8 
4 13.8 
4 13.8 
4 13.8 
April 8... Mean... 
20 0 37.7 
0 35.7 
0 46.27 
0 36.33 
310 26 39.6 
26 44.2 
26 36.2 
26 44.2 
Refract, and Reduct. 
-10.5 
10.5 
10.5 
10.5 
Superior Culminat. 
20 0 27.2 
0 25.2 
0 35.8 
0 25.8 
Inferior Culminat... 
340 26 39.6 
26 44.2 
26 36.2 
26 44.2 
Half DifT. S. P. D. 
19 46 53.8 
46 50.5 
46 59.8 
46 50.8 
Mean of 4 Microscopes 19 46' 53".72 by 12 Observ. 
Page 12S. — The barometer for the lower culmination of a Muscae on June 23, 
. was 29.84 inches in lieu of 29.48 inches, and the corresponding refraction 
l' 26 '. 52, which makes the south polar distance by a mean of the 4 micro- 
scopes for that Set of Observations 21° 48' 49".63. 
LON 
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