64 GEODESIC INYESTIGATIOXS. 



log cot J- A, = 10-3693990 

 log siu i (A— C)= 9-5389522 



1990835 L2 .-. i (A,—u>)=:66° V 31"-338 



log sin i (A,+ C) = 9-5564.166 



10-3519346 .-. A,, = 133° 0' 46"-355 



And diff. of longitude to =^ 0° 57' 43"'679 



tan ^ A,, = ^^"f ;-^-- + "; tan i (A - C). 

 sin i (4„— co) 



■ log tan i {\- C) - 9-5666240 



log sin h (^,, + a;) = 9-9639858 .-. \ \„ - 20° 22' 22"-574 



19-5306098 A,, = 40° 44' 45"-147 



logsiu i (-i./-'^) = 9-9608157 



9-5697941 .-. A" =r 90°-A,,r=49° 15' 14"-853 



,,, rt- ,, 



tan i = — tan A 

 Jj- 



log tan A" = 10-0647298 

 log ft- = 14-6412329 



24-7059627 .-. I" = 49° 26' 35"-634 



log i- = 14-6383328 



100676299 



v" = I"— A" = 0° 11' 20"-781 



Third Sj)herlcal Triangle. 



■ .„ sin v" ■ sin A,, 



sni I = — -^ 



2 sm i 7 cos J y 



log sin v' = 7-5185809 log 2 = 03010300 



log sin A — 9-8640364 log sin i y" = 9 8511218 



17-3826173 



log cos i y" = 9-8478357 



9-9999875 9-9999875 



.-, log sin 1" z= 7-3826298 ; .-. i" — 0° 8' 17" • 800 



cot i^" =$44^ eotH^-n 

 sm i {y +" ) 



log cot i (A^—i") = 9-6396002 

 log sin i {y"—y") = 98504094 



• 19-4900096 .-. h A" = 66° 30' 21" • 5625 

 log sin I (7" + /') = 9-8518319 



9-6381777 .-. A" = 133° 0' 43" • 125 



