I able III. (y) ( b). Courier Coefficients (Group Means) of the Solar Diurnal Magnetic Variation at 
Sunspot Minimum, 1902. 
100 
DR. S. CHAPMAN ON THE SOLAR AND LUNAR 
Calculated. 
07 CO 
1 
m -t 
1 
] 
H -i o H H X' 
1 1 1 
O 
r—H 
1 i 
Radial. 
Observed. 
OOO^ 
pH 
1 
CO 
! II! 
T*- 
1 1 
Calculated. 
1 
h H Cl W 
07 07 rH r-H r—1 
r-H 
i 
O 07 CO CO 07 Ih 
1 
H* CO 
rH 
Observed. 
CO ^ Cl O O Cl 
r-H Cq 07 »-H r-H I-H 
O CO 
r-H 
NOlOfflMiO 
rH Ol l-H i-H r-H 
07 ht> 
rH 
1 
Calculated. 
CO 00 H (M O ^ 
rH H d Cl Cl H 
O r—H 
1 ! 
Cl tH 07 O 07 07 
rH rH r-H 
i 
r-H O 
rH 
i 
Observed. 
3 
© 
a 
o 
a, 
a 
o 
f 
O H N N Cl 
Cl Cl h Cl CO | 
ci o 
1 
3 
© 
rH 
i-H 
O 
34 
a 
o 
o co 00 lO o co 
07 l-H rH 07 07 
o m 
o 
Calculated. 
O 
3 
o 
43 
tP 
(M 
Cl CO O iO co 
CO r-H r-H 07 07 
1 1 
Cl o 
r-H 
1 1 
O 
rH 
3 
O 
43 
1 
rH 
00 07 O 1>- 00 
rH rH rH rH 
1 1 
00 h*i 
1 1 
Observed. 
© 
43 
H 
rH 
4 ® O 1> N Oi 
4 m rt r-4 
1 1 1 
07 CO 
1 
© 
43 
H 
©r 
O O O 07 o 
rH pH rH 07 CO H 
1 1 
O 00 
r-O 
Calculated. 
Cl CO CO Cl o CO 
CO o lO ^ co 
00 Hti 
07 ic 
CO ^ rH Cl 00 rH 
CO CO CO 07 rH rH 
co a 
07 
West. 
Observed. 
^ Cl o Cl o 
CO CO CD CO Clio 
co co 
lO J>- 
h CO h Cl iO oo 
CO 07 CO rH 
rH O 
07 lO 
| 
Calculated. 
00 O Cl ^ N Cl 
r—H r-H j-H r-H r-H 
O CO 
<M i—1 
_ - 1 
Cl rH co CO O 00 
07 CO co CO CO 07 
Ih 07 
07 CO 
Observed. 
1C CO Cl O GO 1C 
r-H - CM 07 
CO 07 
r-H rH 
rH 07 CO CO 07 
co co co CO H 
00 O 
07 CO 
Group 
No. 
H-i HH hH kJ hJ HH 
HHr r k 
HH H*- 
IIIA 
TIA 
I-H HH HH ►>* HH 
VII. 
VIII. 
© 
42 
3 
4 
© 
g 
3 
42 
• rH 
3 
c 
© 
3 
c3 
• rH 
+2 
■4-1 
CO 
O 
m 
© 
H 
