Ixxxiv 
APPENDIX 
OBSERVATIONS made in the Winter of 1819, 1820, to ascertain the Error of the 
Chronometer No. 259, on Mean Time whence the Apparent Time ; was obtained by 
which the Longitude of Winter Harbour was deduced from the Lunar Observations in 
Appendix 11. Latitude 74° 47' 18" N. 
1819 
Time by 259 
Obser- 
ver 
Observed Altitudes 
Baro- 
meter 
Ther- 
mometer 
Mean Time 
259 Fast of 
Mean Time 
Phaenomena and Remarks 
Oct. 5 
(I 
10 
M 
17 
S 
34.3 
s 
0 
5 
/ 
11 
n 
57 
o 
29.5 
0 
+ 2 
H 
3 
M 
05 
s 
10 
H 
7 
M 
12 
s 
24.3 
Sun’s L. L. ^ 
12 
9 
35 
24.5 
B 
4 
25 
47 
29.5 
—6 
2 
23 
25.4 
7 
11 
59.1 
Ditto 
27 
16 
37 
38 
S 
46 
45 
09.3 
29.95 
— 20 
9 
26 
28.65 
7 
11 
09.35 
Capella east of Mer". 
16 
48 
46.9 
B 
47 
28 
48 
29.95 
—20 
9 
33 
33.3 
7 
11 
13.6 
Ditto 
17 
02 
17.3 
S 
38 
08 
58 
29.95 
—20 
9 
51 
06.43 
7 
11 
10.87 
a Lyrae west of Mer“. 
C3 
'o 
Q? 
9? 
17 
14 
45.3 
B 
37 
20 
31.4 
29.95 
—20 
10 
03 
34.35 
7 
11 
12.32 
Ditto 
30 
11 
43 
25.4 
S 
23 
26 
19 
29.75 
— 25 
4 
32 
23.5 
7 
11 
01.9 
Arcturus west of Mer". 
33 
99 
11 
52 
02.6 
B 
22 
52 
48 
29.75 
—25 
4 
40 
59.5 
7 
11 
03.1 
Ditto 
- 
Nov. 28 
14 
48 
04.75 
S 
38 
33 
32 
29.71 
— 35 
7 
39 
02.8 
7 
09 
01.95 
a. Lyrse west of Mer". 
a 
o 
29 
9 
40 
56.4 
S 
23 
36 
55.5 
29.71 
— 36 
2 
31 
47.5 
7 
09 
08.9 
Arcturus west of Mer". 
30 
9 
44 
48.9 
B 
23 
05 
35 
29.7 
— 35 
2 
35 
50.9 
7 
08 
58 
Ditto 
o 
Dec. 1 
9 
05 
13.3 
P 
25 
21 
16 
29.7 
-36 
1 
56 
27.36 
7 
08 
45.94 
Ditto 
27 
7 
57 
26.5 
S 
21 
11 
38 
29.7 
—25 
1 
18 
43.4 
6 
38 
43 
Ditto 
29 
12 
32 
37.8 
B 
37 
28 
20 
30.63 
—41 
5 
53 
52.27 
6 
38 
45.53 
a Lyrse west of Mer“. 
99 
12 
34 
47.8 
B 
37 
19 
55 
30.63 
—41 
5 
56 
02.27 
6 
38 
45.47 
Ditto j 
1820 ) 
April 16) 
99 
28 
IS 
39.5 
P 
22 
45 
48 
30.1 
— 9 
21 
43 
57.3 
6 
34 
42.2 
Sun’s centre 
28 
27 
33 
S 
23 
27 
03 
30.1 
— 9 
21 
52 
39.1 
6 
34 
53.9 
Ditto 
IS 
9 
12 
32 
s 
22 
34 
20 
30.31 
— 5 
2 
37 
47.4 
6 
34 
44.6 
Ditto 
99 
9 
18 
53.5 
p 
22 
17 
21 
30.31 
—5 
2 
44 
03.5 
6 
34 
50 
Ditto 
99 
9 
26 
07.6 
B 
21 
57 
10 
30.31 
-5 
2 
51 
20.6 
6 
34 
47 
Ditto 
cn 
§ 
.21 
11 
21 
26.9 
S 
16 
24 
18 
29.8 
—5 
4 
46 
38 
6 
34 
48.9 
Ditto 
99 
11 
25 
39 7 
P 
15 
52 
20 
29.8 
— 5 
4 
50 
50.4 
6 
34 
49.3 
Ditto 
u 
B 
99 
11 
31 
14.6 
B 
15 
46 
17 
29.8 
— 5 
4 
56 
24.3 
6 
34 
50,3 
Ditto 
May 6 
11 
56 
39.5 
S 
18 
25 
41.65 
29.25 
+ 7 
5 
22 
10.4 
6 
34 
29.1 
Ditto 
Kn 
XI 
O 
12 
11 
31 
52.4 
s 
21 
31 
36.25 
30.3 
+ 15.5 
4 
57 
29.3 
6 
34 
23.1 
Ditto 
0) 
•S 
16 
11 
47 
22.6 
s 
21 
25 
58.3 
30.31 
+ 15.5 
5 
16 
56.4 
6 
34 
20.9 
Ditto 
17 
11 
11 
28.7 
s 
24 
13 
24 
30.38 
+ 22 
4 
39 
08 
6 
34 
21.7 
Ditto 
27 
12 
34 
39.8 
s 
20 
25 
42.1 
30.05 
+ 36 
6 
00 
10.4 
6 
34 
29.4 
Ditto (true altitude) 
June 18 
25 
56 
19.83 
s 
27 
50 
57 
30.1 
+ 36 
19 
21 
10.68 
6 
35 
05.15 
Ditto 
19 
11 
35 
39.4 
s 
26 
34 
51.5 
30.1 
+ 34 
5 
00 
33.9 
6 
35 
05.5 
Ditto ^ 
