362 
TERRESTRIAL AND SOLAR RELATIONS 
(771) F o = 
d V e 
d y 
4 R 3 3 z y 
+ ~ 7T / — ' - 
0 . since y = 0. 
4 R 3 
(772) Z = F n = Z 0 cos 0 + X 0 sin 0 = - tt I — 
o 
( — cos 0 + 3 cos 3 0 + 3 sin 2 0 cos 0) 
4 r X 3 
= — tt I — • 2 cos 0. 
3 r 3 
4 X 3 
(773) * X = F t = — Z 0 sin 0 + X 0 cos 0 = — t I — 
à r A 
(sin 0 — 3 cos 2 0 sin 0 + 3 sin 0 cos 2 0) 
4 R 3 
= — 7T I — . sin 0. 
3 r 3 
r 4 2 
-tt/-] (1 + 3cos 2 0). 
Surface R = r 
(775) Z e = — 7T / . 2 cos 0 
O 
(776) X e = — 7T / . sin 0 
O 
Pole 
Z 6 = -tI. 
X. = 0. 
Equator 
= 0. 
*•- 8 * i - 
Interior Forces 
< 777 > ^ -17 - - 1 ' 7 - 
(778) X, = - ££' - 0. 
(779) F,.= -g = 0. 
(780) Line of Force 
, T 16 „ sin 0 
N — —7r 2 X 3 / • —— = constant. 
3 r