Mr. Ivory on the astronomical refractions. 
487 
Date. 
Barometer. 
Thermometer. 
Observed 
zenith distance. 
Observed 
Refractions. 
Correc- 
tions for 
F. Table. 
Corrections 
of 
N. Table. 
In. 
Out. 
1809, Jan. 22 
29.25 
25 
0 / n , 
87 42 1.6 
/ n 
17 57-4 
+ 237 
+ 12.0 
Feb. 18 
3 °.°I 
43 i 
4 °. 7 
24.8 
+ 3-4 
+ 3-8 
20 
29 78 
43-5- 
40.6 
24.2 
+ i °-7 
4 II. I 
March 5 
3°.°9 
4 2 4 
33 -o 
34-7 
+ 8.7 
+ 8.6 
12 
3°.°5 
44 
22.1 
46.2 
4- 26.0 
4- 26.5 
1810, Feb. 13 
29.94 
34 
3 ° 
57.0 
3 -i 
— 3-5 
— 8.1 
*9 
30.02 
32 
29.5 
5-9 
55.6 
-f 10.2 
+ 3 -° 
March 17 
29.62 
36 
33 
31.0 
33-4 
+ 9-4 
+ I' 5 
1811, Jan. 18 
29.90 
33 i 
32 
12.2 
38.1 
— 0.2 
— 6.2 
23 
30- 2 7 
35 
32 i 
41 55.1 
56.6 
+ 9 - 1 
+ 4-6 
28 
29-35 
2 74 
24 
58.5 
54.6 
+ 22.7 
+ i 3-3 
Feb. 3 
29 44 
34 
3 ° 
42 34-3 
20.4 
— 7-7 
— 14.8 
7 
29.24 
39 
38 
52.5 
3-2 
2.8 
— 4.2 
8 
29.28 
39 
35 
51.2 
4-7 
— 2.3 
— 4.0 
12 
29.03 
3 « 
34 
58.4 
16 58.4 
2.6 
- 5.8 
28.91 
35 , 
33 
43 3-3 
53-7 
10.2 
— 14.0 
Dec. 28 
29.39 
3°i 
2 5 i 
42 3 -° 
1 7 38-7 
+ 12.2 
+ 4 - 6 
1812, Jan. 2 
29.07 
3 4 
30 
22.0 
21.2 
+ 6 -9 
+ 0.3 
3 
28.95 
29 i 
26^ 
34 ° 
9 5 
- 5-8 
— 13-7 
4 
29.I I 
2 7 i 
2 3 i 
41 56.2 
47.6 
+ 24.6 
+ * 5-4 
7 
29-93 
32 
3 i 
42 2.1 
42.6 
4- 0.6 
— 6.6 
21 
29.64 
34 
281 
1.2 
47-9 
+ 20.7 
+ 15-3 
3 ° 
29.1 8 
39 
35 
3 6 -4 
19.2 
+ 17-2 
+ 25.2 
Feb. 7 
29.42 
38 
33 
27.2 
26.4 
+ I 3-9 
+ 11.6 
Dec. 22 
29.66 
33 
261 
41 48.0 
50.7 
4- 21. 1 
+ 15-4 
1813, Jan. 1 
29 64 
3 6 
3 1 
42 9 -i 
3 2 -7 
+ 9-4 
+ 5-4 
3 
29.90 
4 zi 
40 
23.0 
19.5 
+ 0.7 
4- 0.8 
1 1 
29.52 
3 6 
34 
11. 8 
33-2 
+ 1 4-2 
4- 1 0.0 
19 
30.04 
36 
32 
41 58.2 
49.2 
4- 12.0 
4- 8.2 
26 
30.16 
33 
28 
46.2 
18 3.2 
+ 16.1 
+ 9-9 
Feb. 6 
29.40 
39 
38 
42 46.8 
17 5.6 
— 5 -i 
- 7.1 
28.50 
4 ° 
38 
43 24.8 
16 29.6 
— - 10.0 
— 11. 1 
18 
29.26 
39 
37i 
0.0 
55.0 
— 12.0 
— 13.6 
22 
29.24 
42 
3 6 i 
42 52.3 
1 7 3-3 
+ 4 -° 
4 - 4 - 1 
Dec. 26 
3 0>I 9 
35 i 
34 
4 « 55-8 
43 - 6 
+ 0. 1 
- 4-7 
27 
30.01 
3 6 4 
34 
42 21.2 
18.5 
— 17-3 
— 21.6 
3 1 
29.88 
35 i 
33 i 
1.0 
40.0 
+ 7-5 
+ 3 -i 
1814, Jan. 1 
29.69 
35 
321 
21.2 
20. 1 
- 8.4 
— 12.8 
4 
29.1 j 
23 
41 59.6 
42.7 
+ 17-4 
+ 6.9 
22 
29.88 
21 
17 
25.7 
18 22.2 
+ 18.3 
+ 4 -° 
26 
28.95 
33 
3 2 i 
42 56.2 
16 52.8 
— 16.5 
— 21.6 
27 
28.78 
3 2 4 
3 °i 
49.8 
59 4 
— 4-2 
— 9-9 
29 
28.63 
3 «i 
29 
5 i -5 
58.4 
— 2.1 
- 8.4 
Feb. 13 
29.67 
44 
39 
47.1 
17 6.3 
- 8.4 
- 8.9 
