154 
Lieut. Foster’s observations on the diurnal changes 
North end of Needle to the W 
.s.w. 
Direction of 
Mean 
Temp. 
north end of 
Time that a ho- 
Time of 
north end of 
t ahrenh 
needle during 
rizontal needle 
Winds. 
Weather. 
Remarks, &c. 
Obser- 
p, ]y[ t 
needle. 
westerly daily 
took to make 
vation. 
Instr. 
variation. 
60 vibrations. 
1825. 
h, in. 
O / 
O 
m. s. 
Mar. 14th 
4 26 
P. M. 
S 76 20W 
— 22j 
17 54,7 
4 3 ° 
76 15 
— 22i 
5 00 
75 00 
— 23 
17 5 2 >i 
5 3 ° 
74 10 
—23 
5 45 
74 00 
—23I 
6 00 
73 3 ° 
—235 
i 7 54-5 
6 10 
73 00 
—235 
6 30 
72 5 ° 
—Hi 
7 12 
72 40 
—2 5s 
17 S3) 1 
Calm 
Clear and 
7 5 ° 
72 4 ° 
-25 
17 55-8 
fine 
9 25 
72 5 ° 
—27 

17 58 
10 20 
72 5 ° 
—27 
17 53,5 
n 50 
72 5 ° 
—27 
17 5^3 
Mar. 15 th 
1 00 
A. M. 
72 4 ° 
—27 
17 5 6 -7 
Calm 
Clear and 
1 32 
72 3 ° 
—27 
tine 
1 56 
72 15 
—27 
17 57>7 
72 OO 
27 
T 7 59-3 
7 JO 
3 3 ° 
7 i 4 ° 
—27 
3 55 
7 1 3 o 
—27 
18 3,2 
4 25 
71 30 
—27 
— 28 
1 8 0,7 
Max. easterly var. 
5 0 
5 3 ° 
70 50 
—28 
6 00 
70 50 
—27s 
17 58,2 
6 50 
70 50 
— 27| 
7 15 
70 50 
—27s 
17 55 - 8 
7 3 ° 
71 00 
— 27J 
........ 
17 59,8 
9 10 
71 00 
—27 
17 5 8,6 
N.wester 
Hazy 
9 42 
71 OO 
— 26 
Light 
10 15 
7 1 35 
—25 
. • . . 
17 57 
10 40 
71 50 
— 24 s 
1 1 14 
72 20 
—24 
-C 
• ’ <£ * • 
17 57 - 8 
Noon 
73 i° 
—23 
• • <*•> 
17 59-5 
0 35 
P. M. 
73 03 
—23 
<D 
1 00 
73 00 
—23 
* * O 
17 57 - 1 
1 30 
7 2 40 
—23 
H 
1 40 
73 00 
—23 
2 00 
73 00 
— 221 
17 55 - 2 
2 3 ° 
73 10 
— 22 ! 
2 45 
73 0 ° 
2 2 
7 2 T n 
17 C 2.2 
N.wester y 
Parhelion on each 
3 3 ° 
3 5 ° 
74 45 
22 
Light 
side of ©. 
4 3 ° 
75 10 
— 22 1 
17 50- 1 
Max. westerly 
+ 5 00 
5 *5 
76 OO 
22 \ 
*/ TOO 
variation. 
5 3 ° 
76 OO 
—23 
17 47-1 
6 30 
76 OO 
— 2 3 s 
7 l 5 
76 OO 
— 2 3 s 
17 50,1 
8 10 
76 OO 
— 2 3 s 
17 5°-3 
N. W. 
9 00 
75 55 
—233 
17 53 
Mod. 
Hazy 
Max. easterly 
9 3 ° 
75 40 
—235 
variation. 
