Table II. ( b ) ( 4 ).— Fourier Coefficients of the Solar Diurnal Magnetic Variation at the Solsti 
(b) Sunspot Minimum, 1902. 
(4) The 6-hour Component. 
DIURNAL VARIATIONS OF TERRESTRIAL MAGNETISM. 
89 
Radial. 
Winter. 
j r— H r— ( 
1 1 
HH(N 
1 1 
ID 1—1 
1 1 
1 
O 
O 04 
1 
CO 
'•* O 
Summer. 
' »o 
1 
Ol rH ^ 
1 
04 0 
-h 
1 
Ol 
1 
O iO 
r-H 
1 1 
r-H 
1 
0 0 
-T 
Summer. Winter. 
04 r-H 
« *? ^ 
>0 
10 
RO X 
CO 
1 
CO O 
'■+ CO 
OOH <+ 
1 
04 O 
-h 
04 
1 
O -H 
I 
0 
Ol 04 
1 
| 
r-O) 
Winter. 
O 04 H 
1 
C5GOrH 
j 05 O 
CO lO 
—H 
CO r-H 
r—H 
1 1 
-+ 
1 
7 
1 
Summer. 
1 
04 1 :-H 
10 00 
CO X 
04 CO 
r-H 
1 
lO r-H 
04 
p “H 
1 
1 
e 
Winter. 
04 O 04 
1 1 
CO 04 
1 1 1 
CO CO 
1 1 
0 0 
1 1 
lO 04 
CO. r-H 
CO' 
05 CO 
i I 
s 
m 
O ~+ 
1 
r— -H 04 
O RO 
o> 
lO H 
r-H 
CM -t- 
1 
I>- 
05 04 
1 
West. 
Winter. 
CO -t- lO 
to O i ^ 
x 10 
lO 
r-H r—! 
CO 04 
r-H 04 
O CO 
0 
05 H 
1 1 
Summer. 
05 lO O 
I 
iO ’ — 1 CO 
1 
1 
1 1 
i- X 
r-H 
1 
9 
-15 
1 
X co 
1 1 
Winter. 
CO 
00 05 ; 
Ol LO 
i—H 1 —H 
01 co 
r-H f-H 
O' ®> 
CO 04 
1 
0 
1 
0 0 
77 ! 
Summer. 
^ 'M ' 
! ' ! 
-H 50 O 
1 
GO lO 
05 05 
1 
15 
8 
10 
19 
11 
Observatory 
No. 
r-H 04 CO 
1C O 
i>- X 
05 O' 
r-H 04 
CO 10 
CO 4— 
X 05 0 
r-H -H 04 
1 
Group No. 
hH 
h— 
hH 
hH 
hH 
> 
r-H 
!> 
hH 
> 
TIA 
TIIA 
N 
VOL. CCXVIII.—A 
