in the position of the horizontal needle , &c, 
147 
North end of Needle to the West. 
Date. 
Mean 
Time of 
Obser- 
vation. 
A. M. 
or 
P. M. 
Readiug of 
north end of 
Needle. 
Temp. 
Fahren 1 - 
Direction of 
north end of 
needle during 
westerly daily 
variation. 
Time that a ho- 
rizontal needle 
took to make 
60 vibrations. 
Winds. 
Weather. 
Remarks, &c. 
Instr. 
1825 . 
h. m. 
O / 
0 
m. s. 
Feb. 28th 
5 6 
P.M. 
W 0 20 S 
—17 
17 57 , 5 
Easterly 
Clear and 
6 3 
O 5 
—18 
17 57,3 
Light 
Fine 
6 55 
W 0 20 N 
—19 
17 59,6 
7 00 
0 30 
—19 
7 55 
0 40 
—19 
17 59 ,° 
9 3 ° 
0 40 
20 
17 57,2 
10 00 
I OO 
—20 
17 57,7 
10 30 
1 00 
— 20 
11 6 
1 00 
— 20 
17 57,6 
Ditto 
Overcast 
1 1 40 
1 00 
—20 
westward 
Mid 1 . 
O 
O 
— 20 
17 58,1 
March i st 
1 00 
A.M. 
1 00 
~ l 9 l 
17 59,5 
1 30 
1 00 
—19 
2 00 
1 10 
— 18| 
18 00 
Max. easterly 
3 00 
2 30 
-iH 
l 7 59,3 
variation. 
5 
4 00 
—19 
18 1,4 
S. W. 
Hazy 
6 8 
4 3 ° 
—19 
J 8 3,3 
Moderate 
westward 
7 6 
c 00 
-=-20 
1 8 4,8 
— 7 4 o 
7 5 ° 
— 20 
18 8,2 
9 00 
7 3 ° 
—21I 
18 11 
9 3 ° 
7 3 ° 
— 22 
J o 15 
7 3 ° 
— 22 
OO 
00 
NE byE 
Thick 
10 45 
7 3 ° 
— 2 3 
Fresh 
with drift 
11 15 
7 3 ° 
—23 
18 9,5 
1 1 4.C 
c 10 
2J. 
Max. westerly 
Noon. 
4 00 
—24 
17 5°»5 
variation. 
0 8 
P. M. 
West 
—24 
+ 0 30 
W 0 30 S 
—242 
1 00 
0 30 
— 24I 
17 52 
NE Fresh 
Overcast 
1 30 
West 
—241 
2 00 
West 
—242 
17 53,2 
2 30 
West 
— 24I 
3 00 
W 1 00 N 
— 2 5 h 
17 52,8 
3 3 ° 
1 5 
—2 5 s 
4 4 
1 15 
26 
17 54,3 
5 i° 
1 3 ° 
— 26 
l 7 55>2 
North 
Hazy 
Max. easterly 
6 00 
2 00 
——26 
17 c6 
Light 
variation. 
7 00 
2 10 
26 
17 56,6 
7 5 ° 
O 
i-i 
N 
— 26 
17 57,8 
10 30 
2 00 
— 30 
17 55,0 
1 1 00 
2 00 
— 30 
17 54 ,° 
N. Easte y 
Clear and 
5 Mag. 
— 1 1 30 
2 20 
70 
Light 
Fine 
North. 
Midn* 
2 00 
3 ° 
17 55,5 
It will be seen, that when the north end of the needle pointed towards the east or west, the 
direction of its motion during the time of westerly daily variation, is not specified according to the 
mode described; I have not ventured to do so, in consequence of the many irregularities in its 
direction, produced by the variations of horizontal intensity, which were always indicated by this 
needle, and which rendered its direction as to the right and left hand during the time of westerly daily 
variation, very doubtful. 
