in the position of the horizontal needle 
1 55 
North end of Needle to the W 
. s. w. 
Date. 
Mean 
Time of 
Observa- 
tion. 
A. M. 
or 
P. M. 
Reading of 
north end of 
Needle. 
Temp, 
Fahren 1 . 
Direction of 
north end -of 
needle during 
westerly daily 
variation. 
Time that a _ 
horizontal 
needle took to 
make 60 vib s . 
Winds. 
Weather. 
Remarks, &c. 
Inst. 
1825. 
h. m. 
0 , 
0 
m. s. 
Mar. 15 th 
IO IO 
P. M. 
S 75 SOW 
— 2 4 
«*•••• 
*7 55 
11 OO 
75 4 ° 
—24 
• ••••« 
17 56,7 
II 46 
75 40 
— 2 4 
J 7 56,5 
Mar. 1 6th 
I 20 
A. M. 
74 5 
— 2 4 
• ••••• 
17 57,5 
i 50 
74 00 
—24 
• ••••• 
17 57,7 
N West?. 
Hazy low 
2 30 
73 10 
— 2 4 l 
Mod. 
down 
3 00 
73 5 ° 
— 2 4 s 
18 00,3 
3 45 
73 4° 
—Hi 
• ••••• 
17 58 
5 5 
72 30 
— 2 4 i 
• ••••• 
1 8 0,2 
5 5 ° 
72 10 
— 2 5 
• ••••« 
17 58 
Squally 
6 20 
72 10 
— 2 5 
7 10 
72 00 
—Hi 
1 8 0,2 
7 25 
7 1 55 
— 2 4 1 
1 8 o,6 
9 00 
71 40 
—Hi 
18 1,5 
9 30 
71 3 o 
— 2 45 
10 00 
71 3 o 
— 2 4 
18 1,5 
1 
O 
OO 
O 
71 20 
—24 
1 1 00 
71 30 
—24 
18 i,8 
1 1 20 
71 40 
—24 
• • • • • • 
It will be seen 
11 30 
71 30 
—24 
that the max . de - 
Noon 
7 1 30 
— 2 3 
1 7 56,6 
flections of this 
0 5 
P. M. 
72 00 
—23 
needle, took place 
0 15 
73 00 
—23 
about the same 
0 30 
73 °° 
—23 
time that a de- 
0 45 
72 30 
—23 
crease & increase 
1 00 
72 30 
—23 
17 57 
of intensity in 
1 15 
72 40 
—23 
the directive 
j 30 
73 20 
—23 
force of the hori- 
1 45 
73 3° 
-23 
a 
zontal needle 
2 00 
73 30 
—23 
. .-a . . 
17 58,8 
took place. 
2 10 
73 20 
—23 
<D • 
• ••••• 
»••••• 
Max.westerly var . 
2 30 
73 3 ° 
—23 
* * <L> * * 
N W 
2 56 
73 3° 
—23 
4 -» 
Mod. 
Hazy 
3 15 
73 3° 
—23 
. . O . . 
17 54> 2 
3 4 ° 
74 20 
—23 
r • 
5 *5 
75 10 
—235 
17 5°’ 7 
5 45 
75 15 
—Hi 
17 46,6 
4 6 20 
75 30 
—235 
*7 45,3 
6 45 
75 3 ° 
—24 
7 15 
75 3 ° 
—24 
*7 4 6 >9 
7 55 
74 40 
—24 
17 48,8 
9 5 
73 30 
—245 
l 7 5 4’ 5 
9 5 ° 
73 2 5 
— i Hi 
10 20 
73 °° 
—245 
17 55>7 
1 1 00 
7 2 3 ° 
—245 
17 55 > 8 
11 30 
72 00 
- 2 4 a 
•.»•••• 
Fresh 
Mid* 
72 00 
—245 
17 5 6 >7 
NNW 
Hazy 
