TABLE OF THE VARIATION OF THE COMPASS ;
OBSERVED ON BOARD (AFLOAT).
Date. Lat.
North.
Long.
West.
v a . 1
West. 1 j Date. Lat.
South.
Long.
West.
Var.
West.
>831. 1832.
Dec. 30 4 3 2 0 12 0 0 2 3 6 0 Marcii 30 18 0 7 3 8 3 8 2 37
4 2 3 7 12 3 0 2 3 3 4 E.\ST.
4 2 3> 12 4 0 2 4 18 April
3 2 3 2 2 4 2 0 7 2 19
. . 31 41 0 0 1 3 3 0 2 4 4 9
At Ilio de Janeiro. 1 55
4 0 >5 >3 5 0 2 4 2 5 WEST.
1832. May 1 3 18 14 3 8 5 2 1 04
Jan. 1 3 a 41 15 0 0 2 3 3 5 1 4 17 12 3 8 4 7 1 00
3 7 2 0 15 3 0 2 3 6 4 17 14 3 8 4 8 1 15
4 3 3 0 0 If) 10 2 3 0 0 16 3 5 3 8 4 8 1 62
5 2 9 3 2 16 2 0 2 0 4 1 15 15 0 1 3 8 4 1 1 30
2 9 3 0 1 6 2 2 2 0 4 8 2 3 1 3 2 5 3 8 3 7 2 08
• • 7 2 8 2 0 16 15 2 0 2 4 2 5 14 4 2 3 8 2 2 2 20
2 8 12 16 2 0 2 0 2 0 15 2 9 3 8 2 4 2 54
è 2 6 5 9 16 4 8 2 0 0 4 1 5 2 5 3 8 2 4 2 42
• • 9 2 5 2 6 iB 0 2 19 6 9 2 6 16 2 0 3 8 2 4 ' 59
2 4 4 0 18 4 2 19 5 3 17 31 3 8 2 3 2 12
1 0 2 3 0 9 19 4 7 18 4 7 17 3 5 3 8 2 3 2 20
2 2 3 9 2 0 14 18 4 5 2 7 18 5 9 3 8 4 4 1 14
11 2 2 0 2 2 0 2 6 18 10 June 1 2 2 4 2 4 0 2 1 0 03
2 1 4 4 2 0 8 9 18 2 2 EAST.
21 3 8 2 0 4 2 iB 3 7 a 2 2 5 8 4 ' 15 0 33
12 2 0 4 2 21 21 18 2 4 2 2 5 8 4 ' 14 0 15
2 0 1 8 2 1 2 8 18 2 0 J u i y 5 2 3 0 3 4 3 0 6 1 39
• • 13 19 31 2 1 6 7 : 8 0 6 8 2 4 oti 4 2 5 3 1 67
1 9 0 6 2 2 ¡7 17 3 9 12 2 6 3 3 4 3 4 8 3 39
• • 14 17 5 0 2 3 10 17 0 6 1 3 2 7 • 3 4 5 4 8 4 35
. . 15 ' 5 2 9 2 3 6 2 16 5 2 2 7 ' 4 4 5 5 0 4 34
. . 16 >5 17 2 3 3 5 15 2 2 1 4 2 7 iS 4 6 l 6 5 1"
Feb. 7 14 64 2 3 3 0 15 5 5 17 2 9 5 3 4 8 >3 6 52
9 >3 2 0 2 5 2 0 14 4 9 2 9 6 2 4 8 12 6 02
iO 17 2 S 2 5 1 3 4 3 18 3 1 0 9 4 8 6 7 7 60
11 8 5 0 2 7 0 2 12 4 4 2 1 3 4 0 9 5 2 0 3 10 27
- - H 2 10 2 7 5 0 11 0 8 Aug. 2 0 3 5 2 0 5 6 4 7 12 30
. . 15 1 2 0 2 9 0 5 10 3 9 21 3 6 4 9 5 6 4 9 i j 21
. . 16 1 0 0 2 9 2 3 0 9 2 3 3 5 5 4 5 « 4 7 11 36
0 51 2 9 2 5 0 7 2 0 2 2 3 8 6 3 5 6 3 4 12 17
SOUTH. 3 6 0 5 5 6 3 5 12 23
•• Ï7 0 01 2 9 5 9 B 5 8 2 3 3 7 0 2 5 S 3 6 13 °7
0 2 8 3 0 iB B 18 Oct. 2 7 At Monte Video, 12 42
0 2 8 3 0 18 8 0 3 3 1 3 4 5 0 5 7 1 3 12 09
. . 19 3 2 9 31 5- 8 0 0 Nov. 1 3 4 4 2 5 7 2 8 12 24
. . 20 Fernando de Noronha. 7 5 3 2 3 4 3 5 5 7 5 6 11 06
21 3 0 9 3 2 0 2 7 5 4 14 3 4 6 5 5 6 19 12 00
. . 23 5 0 4 3 2 0 1 7 4 5 28 3 4 5 8 5 6 1 0 12 5S
Marcii 18 1 3 12 3 8 3 4 2 0 7 2 7 3 4 4 8 5 6 4 2 12 26
. . 19 1 3 2 9 3 8 3 0 1 4 7 2 9 3 5 0 7 5 6 0 5 12 29
. . 20 1 3 11 3 8 2 9 2 11 Dec. 3 4 0 4 6 6 2 0 6 15 26
1 3 3 8 3 8 2 0 I 2 1 5 4 2 l 6 6 1 3 2 16 12
. . 22 15 0 3 3 7 2 5 3 2 2 6 4 3 1 4 6 1 17 1 6 20
¡5 3 3 3 7 2 0 2 44 7 4 3 5 6 6 1 2 6 1 6 40
• • 23 16 2 9 3 6 6 7 3 44 8 4 6 12 6 2 2 3 17 25
• • 25 18 10 3 2 5 5 5 5 3 1 3 11 51 iB 6 5 1 4 2 0 2 6
iB 0 9 3 5 6 8 2 5 0 1 3 5 0 42 6 5 4 5 2 0 41
• • 27 17 6 4 3 7 3 1 2 2 0 14 6 2 0 6 6 6 5 8 21 35
. . 28 18 0 4 3 8 3 0 1 5 5 1 5 5 2 3 9 6 7 14 2 1 31
. . 30 17 5 9 3 8 4 6 2 2 4
TABT^E OF THE VAltlATIONS OF THE COMPASS. 87
Lat.
South.
V.ir.
East.
1833.
March 12 5 1 3 0
1 4 6 1 3 0
April 1 6 4 1 5 8
17 4 2 18
Aug. 2 41 17
3 4 0 5 0
4 4 0 6 3
5 4 0 5 3
6 4 0 2 7
2 2 3 9 1 0
2 6 3 8 5 7
3 0 3 8 5 7
Sept, 1 3 8 6 7
Nov. 2 5 3 4 6 3
2 9 3 4 6 3
Dec. 7 3 4 4 5
15 4 2 3 4
19 4 3 2 7
2 0 4 4 3 0
2 3 4 7 11
1834.
Jan. I 4 7 4 6
7 4 8 10
4 8 4 6
' s 4 8 4 7
4 8 4 5
9 4 9 10
2 3 4 8 2 0
4 8 2 6
2 6 5 2 0 7
3 0 5 2 4 5
Feb. 11 6 3 1 8
1 3 6 2 4 5
14 5 3 2 3
17 6 3 >5
1 9 6 4 0 0
2 4 6 5 4 8
April 11 6 0 1 5
12 4 9 4 7
1 3 4 9 3 9
1 4 5 0 0 8
2 0 5 0 0 8
May 2 2 6 2 16
June 1 3 5 2 5 1
Nov. 10 3 3 0 4
18 3 8 0 8
19 4 0 1 2
4 0 12
3 9 0 6
2 0 4 0 3 0
4 0 3 0
2 7 4 1 4 2
3 0 4 3 4 6
4 3 4 6
Dec. 1 4 4 2 2
4 4 2 6
4 4 2 6
4 4 2 2
4 4 2 7
6 7 6 4 18 4 2
6 7 5 4 18 4 5
6 4 3 6 17 0 0
6 4 19 1 6 4 7
6 1 ' 3 1 4 2 3
HI 3 0 16 6 5
6 i 5 0 1 6 2 7
6 1 3 0 16 4 4
6 2 0 0 16 16
6 0 4 1 15 0 7
6 1 6 8 1 5 11
6 1 5 8 1 4 5 6
61 5 8 15 2 5
5 S 1 3 11 4 5
5 6 1 3 11 2 1
5 6 4 8 12 11
6 8 5 4 1 6 0 1
5 9 5 9 1 5 4 6
6 1 18 18 1 4
6 5 0 4 19 5 0
6 6 0 0 2 0 3 0
6 7 3 0 2 0 5 0
6 4 2 4 19 18
6 7 1 5 2 1 2 8
6 6 0 0 1 8 2 2
6 7 15 1 9 4 7
6 6 12 19 5 6
6 6 0 9 19 31
6 8 0 5 2 1 4 0
7 0 oB 2 3 3 8
6 7 15 2 2 0 0
7 0 0 8 2 3 4 5
6 9 0 8 2 4 4 0
6 7 61 2 4 12
6 7 15 2 3 0 5
6 6 2 3 2 3 31
6 4 15 19 5 2
6 5 1 6 2 2 5 0
6 7 6 5 2 0 18
6 8 2 7 2 0 2 1
6 8 2 7 21 2 8
6 7 3 0 2 2 2 2
7 7 2 8 2 5
7 2 0 9 17 1 6
7 7 12 17 2 7
7 7 1 5 18 3 0
7 6 5 6 17 3 0
7 7 0 9 17 3 6
7 6 4 5 18 6 8
7 6 4 6 iB 6 6
7 4 0 0 19 0 9
7 7 0 5 1 9 4 2
7 7 0 6 2 0 11
7 6 4 2 18 5 4
7 6 3 9 19 1 3
7 5 15 1 9 4 3
7 6 4 2 1 9 0 1
7 6 3 3 19 5 7
Lat, Long. Var.
Date. South. West. East.
1834.
Dec. 2 4 4 2 6 7 5 15 2 0 05
4 4 2 9 7 5 4 4 2 0 16
3 4 4 4 8 7 5 0 2 2 0 30
18 4 4 5 2 7 6 l 3 2 1 24
19 4 6 0 9 7 7 4 8 2 1 0 9
45. 10 7 7 6 1 21 53
2 0 4 6 31 7 5 4 3 2 2 35
4 6 4 8 7 5 0 6 2 1 33
30 4 5 4 8 7 5 0 6 2 1 39
1835.
Jan. 6 4 4 3 0 7 4 2 0 2 0 18
7 4 3 5 3 7 4 2 0 2 0 36
Feb. 2 8 3 8 18 7 2 3 0 17 22
March 1 3 8 18 7 2 3 0 17 64
2 5 3 5 11 7 1 4 6 16 34
NOTE.—Hence to the Galapagos Islands the
variations were all observed on shore.
Sept. 12 4 4 2 8 4 4 8
16
9 2 7
1 3 2 5 8 8 6
9 23
NOLLTM. WEST.
Oct. 2 2 0 10 9 7 2 7 8 43
SOUTH.
2 4 1 12 9 9 6 9 8 37
2 5 4 3 2 103 5 6 6 10
3 3 9 102 5 4 8 20
2 6 6 31 105 0 2 7 47
2 7 6 0 9 106 2 6 7 20
2 8 7 0 7 109 o g 6 33
7 4 7 100 2 4 6 03
2 9 7 4 0 112 4 0 6 00
3 0 8 2 1 113 5 1 6 00
8 4 7 115 18 6 19
3 1 9 3 8 l l B 2 0 6 08
Nov. 1 10 0 4 119 4 8 6 04
1 0 2 7 121 1 6 4 35
2 11 1 4 123 6 9 4 54
3 11 3 3 125 10 6 06
11 4 2 126 0 6 4 43
4 11 5 2 127 2 1 5 38
4 12 0 7 128 4 3 5 31
6 1 3 11 132 11 6 20
2 7 17 1 6 150 0 2 7 57
2 8 17 2 2 151 6 2 7 59
17 2 2 152 0 2 7 66
17 1 9 152 2 4 6 45
2 9 17 2 6 152 5 0 8 52
.. 17 2 6 1 6 ^ 5 1 7 4 6 17 3 2 152 3 0 7 03
3 0 18 2 0 156 31 8 u
Dec. 1 18 2 1 157 16 7 14
2 18 3 2 158 0 1 8 23
18 3 3 153 1 3 8 33
3 1 8 4 2 159 2 4 1 0 14
18 4 4 169 2 7 9 25
4 1 9 4 7 161 4 7 9 20
2 0 17 163 0 5 8 38
5 21 17 165 2 4 9 28