Table III. (S ).—-Fourier Coefficients of the Solar Diurnal Magnetic Variation, Combined Group Means 
for 1902 and 1905. 
(<?) The Unsymmetrical Seasonal Component, (Spring —Autumn). 
102 
DR. S. CHAPMAN ON THE SOLAR AND LUNAR 
rO* 
Calculated. 
1 
OCCNhON 
1 1 1 1 
co 
i 
h o h cot» o 
rH 
1 
- 
CM CO 
r-H 
IS 
• rH 
Observed. 
Cl H H fQ ^ 
till 
co oo 
1 1 
O Cl H ^ 03 ^ 
rH 
O -I 
C« 
Calculated. 
W Cl Cl W ri o 
r-H r-H 
1 
o © -h i—i eo m 
1 l 1 1 
0 r-H 
1 1 
Observed. 
^ <M ^ CO <M CO 
1 
O r-H 
r-H r-H 
1 1 
rH (M rH CO CO CO 
II III 
CO M 
1 
rC> 
Calculated. 
rH CO »0 CO ^ *—* 
r-H rH i-H rH1 r—H i—< 
1 1 1 1 I 1 
®co 
rH rH 
• 
CO CO O rt- o CO 
rH r-H rH r-H r-H 
1 1 1 1 1 1 
^ CO O 
rH r-H 
-4-2 
Observed. 
a 
© 
c 
o 
cu 
B 
O 
to 05 rH rH lO C 
r—t rH <M CM rH 
1 1 1 1 1 1 
£"• O rH 
- 1 
i 
c 
© 
a 
o 
Ph 
£ 
Q 
CO 00 ^ Cl 00 CO 
H H (M Cl 
1 1 1 1 1 1 
0 CO rH 
1 
© 
Calculated, 
o 
u 
3 
o 
J© 
1 
O i~* r-H r-H 0 CO 
rH l—H r-H i—H 
- 
r-H r-H 
r-H r-H 
1 1 1 
o 
s-l 
3 
o 
fH 
1 
<M 
O O H r-i (M C-5 
r i—i O 
1 1 
Observed. 
© 
H 
r—1 
kO Cl ^ O Cl N 
r-H O'! rH r-H r-H 
O lO co 
r-H 
l 
© 
rP 
H 
c<T 
Cl Cl co co o ^ 
I-H 
II II 
lO r-H 
i 
Calculated. 
h H Cl Cl CO CO 
i—H r-H r-H r-H r-H r-H 
1 1 1 1 1 1 
^ Cl rH 
r-H i-H r-H 
III 
rH r-H 01 0 I-H r-H 
1 l 
WON 
1 
m 
<o 
Observed. 
CO Cl CD co o 
i-H r-H r-H i—H 
1 1 1 I 1 1 
00 O GO 
r-H Ol I-H 
1 1 1 
^ Cl O Cl o co 
£'» r-H 0 
r-H rH 
1 1 1 
£ 
C5 
Calculated. 
N CO O H CO 
r—H r-H r—H r-H 
1 1 1 1 1 1 
lO »—< CO 
r-H i-H 
III 
rH CO *— 00 0 r-H 
Cl Cl (M Cl CO CO 
i i i i i i 
r-H GO <05 
CO M H 
1 1 1 
Observed. 
CO Oi CO rH GO 
r-H r-H r-H 
1 1 1 1 1 1 
N ClrH 
CM r-H 
I I 1 
CO co kC CO rH N 
Cl Cl Cl Cl co co 
i : i i i i 
M 00 CO 
CO rH r-H 
1 1 1 
p t 
u 
1 _°_ 
rH M H ^ ^ hH 
VII. 
VIII. 
IX. 
. 
HHHk^W 
XI 
1IIA 
TIA 
