138 
Lieut. Foster's observations on the diurnal changes 
North end of Needle to the South. 
Temp. 
Fahren 1 . 
Direction of 
Mean Time 
A. M. 
Readine of 1 
north end of 
Time that a ho- 
Date. 
of Obser- 
or 
north end of 1 
needle during 
westerly daily 
rizontal needle 
took to make 
Winds. 
Weather. 
F emarks, dec. 
vation. 
P. M. 
JNeedle. 
Instr. 
variation. 
60 vibrations. 
1825. 
h. ra. 
O 
O 
m. s. 
Feb. 18th 
O 15 
O 18 
A. M. 
S 6 40 E 
7 10 
—22 
NNE 
Clear 
22 
Light 
O 30 
8 20 
2 2 
O 40 
8 40 
22 
O 15 
9 20 
2 2 
0 55 
1 00 
9 5 ° 
I O OO 
2 2 
NNE 
Clear 
22 
l 7 55*9 
Light 
Max . easterly 
variation . 
1 5 
10 15 
— 22 
1 1 5 
10 30 
2 2 
- 1 2 5 
10 50 
—22 
1 35 
10 40 
22 
1 55 
10 30 
22 
17 57*3 
2 30 
10 30 
2 2 
3 00 
10 OO 
— 21 i 
17 56,8 
3 3 ° 
9 4 ° 
22 
3 5<5 
9 4 ° 
— 22 
17 58,8 
5 00 
9 4 ° 
— 22 
18 4,2 
6 2 
8 40 
— 22 
18 4,3 
7 12 
8 40 
- — 2 2 
. . *6 . . 
1 8 2,0 
S 8 
8 35 
— 2 3 
. . vs 
1 7 59-3 
Fine and 
9 3 ° 
7 5 ° 
—23 
rC 
18 00,0 
NE Light 
10 00 
7 00 
—23 
. • <L> • . 
17 52,2 
Clear 
10 35 
6 10 
—23 
<L> 
I 1 5 
5 3 ° 
—23 
+-» 
• • q 
17 49,6 
11 30 
5 20 
—23 
Noon. 
5 10 
— 23 
17 49,2 
Max . westerly 
variation . 
+ 03° 
1 00 
P. M. 
C OO 
—2 2 
J 
5 >o 
J 
—23 
17 5°>5 
1 30 
5 10 
—23 
2 00 
5 10 
—23 
• •••••a* 
*7 5 2 >5 
2 30 
5 10 
—23 
— 3 00 
5 20 
—23 
17 54*5 
8 50 
9 3 ° 
C IO 
— 24I 
— 25 
Calm 
Hazy,low 
to the west d 
5 10 
17 53 > 2 
Needle nearly 
stationary. 
10 00 
5 10 
5 10 
5 OO 
5 OO 
—25 
—24 
—252 
—25 
T 1 “ft 
10 30 
1 1 00 
11 30 
1 / p u 
Northerly 
Light 
Clear and 
17 54 > 8 
fine 
from o h 30™ 
P. M. until 
Mid 1 . 
5 00 
—25 
17 54> 2 
o h 30 m A. M. 
Feb. 19th 
0 30 
A. M 
5 OO 
—25 
18 
NNE Lt. 
Fine wea. 
on the 19th. 
1 00 
4 4 ° 
—25 
*••••••• 
18 1,5 
1 30 
4 4 ° 
—25 
18 00 
1 55 
4 40 
—25 
— 
2 20 
4 40 
— 25 
Max . easterly 
3 15 
4 4 ° 
— 2 5 
18 00 
i Calm 
Clear 
3 55 
4 4 ° 
—25 
18 12 
variation took 
place at 5 h 3 m . 
6 00 
4 40 
Hazy 
z 5 
1 / 3 
7 00 
5 00 
—25 

18 00,7 
7 25 
4 50 
—25 
, 
