IN PHYSICAL ASTRONOMY. 
15 
+ ^{-il{T r ''-| x ‘} + |-{T’'>'-y x> }} e “ s(3 ‘- I) 
[117] 
— — / — r/ — A! 1 e cos (3 t + a') 
a, 16 l 2 1 2 7 V ’ 
[118] 
+ i{ + T{4 ri '-7'} + o{ r ' ,+ x '}} e ' cos(31_i) 
[119] 
+ + } e ' cos<3£ + I> 
[ 120 ] 
-4^{'4’ V - T* 3 je s cos(3i — 2*) 
[ 121 ] 
+ i{ + £{£'•'- 
4 
+ — {7- ^ 5 } ee,cos (3* + x + z) 
— x — z) 
[123] 
[124] 
+ 4{ + 'H4 rs ' - 
[125] 
+ -7 {7+ A 5 j ee,cos(3* + x— «) + + A 5 |e/ 2 cos (3t — 2z) 
[126] ‘ [127] 
_ rl {^-^}^ c °s (3 < + 2 2) 
[128] 
+ { + j| { r/ ~ Al } + § 62 { r ^ A * } ~ ^ y 2s ‘« } C0S 4 ' 
[131] 
+ ff { r ‘ f ~ Xl } + ^{ r3, ~ A3 } + -j^ 72 * 147 } ecos ( 4t ~ x ) 
[132] 
+ { + i{ r/_Ai } + ^ e2 { 7 ’ 3 '“ A3 } + i{ r4 '“ A4 }"l' 72Si47 } ecos(4 ^ +z) 
[133] 
Development 
of § R' 
