IN THE MOTIONS OF THE EARTH AND VENUS. 
99 
+ "2 Gr “ a ) (~ + + 5a ) *' S *' S + 1 - C I- 
+ ( - -^ + «) . 5. s + 1 . s + 2 . 
(*) 
+ 2 
T + 3 
n x . 105 (*) .15/1 _ \ 
(4,0) C s + 2" VS’” 7 ®/ 5 * 
105 ^(*) .15/1 
,(0 
"*+i 
+ {(l- 7“ V“)- (i -7“) ~ 6 } 
^S -j- 3 
S ' S “f" 1 * ^'5 + 2 
+ 2 ( — — + a) . (— — 7«).<s.s+l*s + 2.C, 
/I \4 - - - (k) 
+ (^ — — + aj . 5.5 + 1 . 5 + 2 . s + 3 . C s + 4 
(5,0) cf = - ^ cf + 5 -§ (- G + 9«)*, C 
+ T{“(G“ 3 a )(G” 7a ) +4 }' s -' s + 1 - C 
+ ¥ (t “• “) { - Gr ~~ 3a ) (G ~ 7a ) + 4 } 5 • s ' + 1 • 5 + 2 • C 
,(*) 
's+ 1 
,(*) 
+ + 2 
(*) 
5 + 3 
+ -o •(-— + 9 a) 5.5+1.5+2.5 + 3. 
,(*) 
+ + 4 
-)- ^ — ~ ~1“ cj^ . 5.5 + 1 . s -j- 2 . 5 + 3.5 + 4. 
(*) 
-+ 
J s + 5 
44. Using the same value of a as before, and making 5 = - 5 + these expres¬ 
sions become, 
(k) i (*) 0) 
( 1 , 0 ) Cx = ~~o C, — 0,3295790 . <+ 
(k) S (£) (*) (k) 
(2,0) C\ = + -J C 4 - 0,3937533 . <+ + 0,3258670 . <+ 
(k) 15 (/<•) (k) (ft) (/£) 
( 3 , 0 ) C\ = - g- C, + 2,5134426 . C, + 1,6567557 . C 4 - 0,5369945 . C, 
