Table II. (6) (l). —Fourier Coefficients of the Solar Diurnal Magnetic Variation at the Solstices. 
(6) Sunspot Minimum, 1902. 
(l) The 24-hour Component. 
DIURNAL VARIATIONS OF TERRESTRIAL MAGNETISM 
83 
Radial. 
| 
- 
Winter. 
rH r-H 
1 1 
. .. ....... 
SO to ZD 
r-H 
1 1 1 
Oi GO 
04 
1 1 
rH 
1 
04 
rH 
04 O 
1 
co 
1 
Tf rH 
1 1 
Summer. 
00 o 
r—H rH 
1 1 
rH CO 04 
r—H pH 
1 1 
ZD tO 
pH 
1 
rH 
1 
to 
1 
pH lO 
04 
i 
to 
pH 
Ci ^ 
pH 
<3 
Winter. 
co 04 
1 
to 04 
|H rH 
1 
04 00 
04 
ZD 
pH 
rH 
CO 
X o 
rH 
- 56 
ZD O) 
ZD 
1 1 
Summer. 
GO tO 
04 CO 
! 
ZD to 04 
to 04 ZD 
OZ> 04 
ZD tO 
36 
pH 
to 
rH I— 
ZD 
- 57 
■—i 
o 
1 1 
North. 
r-O 
Winter. 
ZD ^ ZD 
i i 
04 o o 
H H 
1 1 
o o 
04 04 
I 1 
X ZD 
1 
rH CO 
1 1 
04 O 
pH 
1 1 
-42 
!>• D- 
rH 
1 
Summer. 
O 04 04 
ZD CO 
GO rH O 
04 CO to 
CO 
04 
04 CO 
ZD h* 
X co 
pH 
- 33 
- 35 
- 60 
^ to 
ZD CO 
1 
Winter. 
O CO GO 
rH 
1 1 
O 04 ^ 
04 ^ 
1 1 1 
CO Ih 
pH rH 
1 
ZD> ZD 
tO tO 
1 1 
CO ZD 
hH 
1 
co nh 
o to 
rH rH 
Jh 
04 
pH 
pH 
04 X 
i 
Summer. 
h* 05 to 
r-H ^ 00 
1 1 1 
^ ^ GO 
O t- o 
rH pH 
1 1 1 
to 1 — 
»-h 
1 1 
tO 
tO CO 
1 1 
co u- 
^ zd 
IH CO 
CO ZD 
rH rH 
CO 
04 
pH 
ZD ZD 
rH 04 
1 
West. 
pH 
pC> 
Winter. 
CO ZD r-H 
04 
HO -■* t- 
U- CO 
rH 
04 CO 
- 17 
31 
- 28 
- 28 
o 
rH 
1 
IH O 
ZD ZD 
rH rH 
1 1 
Summer. 
^ co 
04 ^ CO 
pH r—1 r-H 
tH to to 
»—1 h* 04 
rH pH rH 
O 00 
04 04 
pH rH 
1H IH 
o o 
pH rH 
X h* 
rH 
76 
69 
pH 
1 
ZD O 
rH 04 
1 1 
<s 
Winter. 
Oi O tO 
^ CO CO 
04 tO tO 
tO 04 ^ 
ZD rH 
to ^ 
D- CO 
04 04 
o ^ 
04 
^ ZD 
1 1 
X 
1 
to 04 
i i 
Summer. 
t- CO 
to ®t> 
pH ZD rH1 
|H h* 
CTi CO 
ZD ZD 
O CO 
ZD ZD 
rH 
CO 04 
rH 00 
r* 
X 
rH 
ZD 1— 
pH rH 
I 1 
Observatory 
No. 
rH 04 CO 
^tOO 
L- X 
O) O 
rH 
PH 04 
rH rH 
CO ^ to 
ZD t— 
rH pH 
OOQ O 
rH rH 04 
1 
Group No. 
HH 
t-H 
HH 
HH 
HH 
HH 
> 
H—1 
V. 
VI. 
VII. 
pH 
HH 
> 
1 
