i it Ne tt 
EXTREME PosItTIons. 
255 
XXIX.—Differences of the Extreme Readings of the Three Magnetometers from the Monthly Means 
during the Extra Observations in 1843, together with the Ranges of the Three Magnetic Elements 
during each of the Observed Disturbances. 
Westerly Declination. 
Bifilar Magnetometer. 
Balance Magnetometer. 
Ranges. 
Greater than 
Mean. 
Less than 
Lean. 
Reading greater} Reading less 
than Mean. than Mean. 
a 
= 
bo 
eH 
DNF NROSOREDWIDWAWWHODDP 
g HH ety 
* NMoOMoancocrw 
~ 
ed : 
wo: SCNWNTOMHD FEO: 
+ 
= 
bo mb Ll to 
HP SODRYOANSOSADENDONHAMNDHAN 
Por AowMoy 
| =< eee 
aAwon-: 
Reading greater 
than Mean, 
Reading less 
than Mean, 
Declina- 
tion, 
Horizontal 
component. 
Se. Div. h. | Se, Div. 
-— 68 
322 
++eei + 
I= 
Mie. Diy. 
+1056 
+119-4 
+ 774 
+ 128 
HH 
= 
SOND OOrMN: MHDODMOD 
= 
HH 
B bo bt i 
DRW! CODFROMPOMTHHEIDIRRWAWHRDOYD 
bo: 
Qw: 
i 
0 
7 
6 
0 
2 
6 
10 
2 
9 
8 
6 
4 
8 
= 
ti 
+ 
71:0 
36:3 
Mie. Diy. 
X=1. 
0:00242 
00314 
00247 
‘00135 
00438 
00203 
00438 
00602 
00169 
“00708 
00510 
00200 
00254 
00367 
00731 
00465 
00260 
00383 
*00506 
02927 
01445 
“00609 
00203 
00423 
00303 
-00177 
“04278 
00155 
00665 
-00389 
“00449 
"00429 
00461 
00302 
00312 
-00148 
00170 
Vertical 
component. 
Y=1. 
0-00031 
00076 
-00059 
09006 
00043 
00014 
00169 
00021 
“00030 
00168 
00260 
00030 
00010 
00021 
00519 
“00072 
00014 
-00029 
00249 
00755 
00507 
00125 
00062 
00134 
00057 
00073 
“00902 
00081 
00048 
00129 
00038 
00060 
-00032 
00102 
00096 
00017 
-00023 
“00095 
00096 
00035 
-00038 
-00104 
00082. 
00055 
00034 
“00018 
