IN PHYSICAL ASTRONOMY. 
21 
Development 
of $ d It. 
+ 4{4 r ' + 
[104] 
of ,2.5.3/ 1, 2.9/3 ,, 1.1 
a\ + " 872 " I 1 + , j + ~ 8 ' lT r - + W 
“ } e/C ° S + z) 
[105] 
of ,2.9/3 , . 1,1. 15/3 , I,]] „ 
^i + ^lT r ^-2 A3 } + l6lT r5 -T X5 } j ee ' cos(4 -- T + 
[ 110 ] 
a f, 2.3/3 , 1-1 2.3 2 / 3 , 1.1 25 . 3 0 / , , ] 
+ ^{ + -s-U r '-^i~^ e U T3 -Y^\--872 e ‘{ r ' 
~h^y{ r - J+Xi } } cos3 * 
[116] 
a \ 2. 15/3 , 1,1, 2. 3/3 1,1] 
+ 'a]{~ "TIT \T r ‘ ~ W + IFIt' 3 " W } ec os(3<-*) 
[117] 
a 2.3/ 3 1,1 , 
2 Xl / ecos(3<+a:) 
[118] 
+ 4 { + ¥ { 4 r } + H { + } } e ‘ cos (3 1 - 
[119] 
+ 4{ + ^ (4 n - W - 44 { r >'- x 4 }^ os(3 ‘ + *> 
[120] 
{ + ^ { r '' - } + ^ e * { r >' - } - 1 y ‘ Si "} cos 4 ' 
[131] 
+ {- ny^{ 7 ' i ' -A >) + + !r*^cos(4*-* 
f 2 . 20 r , , 1 , 2 . 20 / , , 1 , 2 . 20 / , ,1 
+ { + _ 2T V 1 1 } + ~2rY 3 A3 } + _ 2 TV 4 4 J 
[132] 
■} 
-Tr 9s H7 fecos (4«+*) 
[133] 
21 
— y y 2s i47| e /Cos (4t — z) 
[134] 
+ { + ^{v-x,} + 2_|3 
