Capt. Sabine’s observations on the magnetic needle. 13 
1819, March. In the Regent’s Park, London, lat. 51 0 31/ 4,0", 
long. o° oh' IV. 
In the magnetic meridian 
Number of 
vibrations. 
Interval. 
Mean 
Time. 
“O u*n 
5 O Ooo O oc r^.00 00 r\N 
^ <3 rb rh ’'t* 
u 
S) 
100 
100 
100 
m. s. 
8 01,5 
8 08 
7 56*5 
Arc 
C L Ly- 0 O N ONO *+ 
fs. L/-N -sf N — — 
No ol 
vibra- 
tions. 
00000000000 
- N ^ ^ ‘■'•'O t^.00 Cs O 
100 
N 
O 
00 
Perpendicular to the meridian. 
Number of 
vibrations. 
Interval. 
Time. 
c/> 
"O lr> to ir i r o-\ 10 
C 
O N N OnO\ Osoc On 00 O On 
<L> 
CC 
100 
m. s. 
8 18,5 
Arc. 
O 
O O O N VO — 
On Tf- n — 
No. of 
vibra- 
tions. 
00000000000 
» « tn + wv\o f^oo 0 O 
Abstract of the times in which 100 vibrations were performed. 
Latitude. 
N. 
Longi- 
tude. 
W. 
In the 
meridian. 
First 
Arc. 
Perpendicular 
to the meridian. 
First 
Arc. 
0 
51 3 « 
O / 
O 08 
m. s. 
O O 
O 
m. s. 
8 18,3 
O 
90 
Regent’s Park, London. 
60 09 
I 12 
7 49 ! 
74 
7 59*5 
90 
Shetland. 
68 22 
53 5 ° 
7 20 
83 
7 33 
90 
On ice, Davis’s Straits. 
70 26 
54 5 Z 
7 21 
83 
7 26 
90 
Hare Island. 
75 °5 
60 23 
7 27! 
84 
7 26 
90 
On ice, Baffin’s Bay. 
75 515 
63 06 
7 * 3 i 
84 
O O 
On ice, Baffin’s Bay. 
76 45 
76 00 
7 15 
85 
7 26 
90 
On ice, Baffin’s Bay. 
76 08 
78 21 
7 16 
85 
7 18 
90 
On ice, Baffin’s Bay. 
7 o 35 
66 55 
7 16 
83 
7 18,5 
9 ° 
On ice, Davis’s Straits. 
5 1 31 
0 08 
8 02 
70 
8 18 
90 
Regent’s Park, London. 
The 1 ooth vibration never exceeded an arc of 3 0 
