Capt . Sabine's observations on the magnetic needle. 133 
to oscillate until the arcs became too small to be readily dis- 
tinguished: the first arc was thus equal to the dip, and at 
every tenth vibration both the arc and time were noted. The 
observations in the magnetic meridian were repeated with 
the face of the instrument towards the east and towards the 
west. 
It is highly satisfactory to notice the agreement of the 
results which were obtained in London and in Shetland, at 
different periods, and by different observers; showing that 
the adjustment of the balance of the needle was preserved 
during the voyage, notwithstanding the accidents to which it 
was liable : and as a testimony of the excellence of the 
instrument, and of the confidence which may be placed in 
observations made with it. 
Observations on the dip. 
1818. 
Latitude. 
Longi- 
tude. 
No. of 
I obser. 
Observer. 
Dip. 
Remarks. 
April 13 
0 / 
51 31 N. 
0 / 
0 08 W. 
16 
Capt. Kater 
0 / n 
7 ° 34 39 
Regent’s Park, London. 
3 ° 
60 o 9 f- 
1 12 
*4 
Capt. Sabine 
74 22 4.8 
1 B rassa Island, Shet- 
May 1 
60 og-f 
1 12 
12 
Lieut. Parry 
74 20 10 
J land. 
June 9 
68 22 
53 5 ° 
12 
Capt. Sabine 
*83 08 07 
On ice. 
*9 
70 26 
54 52 
H 
Capt. Sabine 
*82 48 47 
Hare Island. 
July 8 
74 °4 
57 52 
10 
Capt. Sabine 
84 09 15 
(Baffins) three Islands. 
23 
75 °5 
60 03 
10 
Lieut. Parry 
84 24 57 
23 
75 °5 
60 03 
xo 
Capt. Sabine 
84 25 15 
Aug. * 
75 5 *t 
63 06 
10 
Capt. Sabine 
84 44 30 
On ice. 
4 
75 59 
64 47 
10 
Capt. Sabine 
84 52 06 
On ice. 
19 
76 32 
73 45 
10 
Capt. Sabine 
85 44 23 
On ice. 
20 
76 45 
76 00 
14 
Lieut. Parry 
86 08 53 
20 
76 45 
76 00 
»4 
Capt. Sabine 
86 09 33 
25 
76 08 
78 29 
16 
Capt. Sabine 
8 5 59 3 1 
On ice. 
Sept, xi 
70 35 
66 55 
10 
Capt. Sabine 
84 39 21 
On ice. 
Nov. 3 
60 09J 
t 12 
Lieut. Parry 
74 21 06 
7 Brassa Island, Shet- 
3 
1819. 
60 C9J 
1 12 
H 
Capt. Sabine 
7421 47 15 
j land. 
March 
5 1 3 i 
0 08 
16 
Capt. Sabine 
70 33 16 
Regent’s Park, London. 
