GEODESIC INVESTIGATIONS. 63 



First Spherical Triangle. 



y' = 90° 26' 0"-Vll A' = 46° 15' 36"-970, and ita supp 



J/' — 0° 11' 22"-788 V =r 133° 44' 23"-030, 



i V =: 66° 52' 11"-515 



i {y'—"') — 45° 7' 18"-961 



i (7' + /) = 45° 18' 41"-749 



tanM^4' +i') ^ eosHo/-.;) ^ 

 ^ cos I (7 +!'') 



log cot 4 F = 9-6305884 



log cos 4 (7'-/) = 9-8485587 



19-4791471 .-. h {A+i) — 23° „ 11' „ 57"-281 



log cos 4- (7' + *'') = 9-8471102 



9-6320369 



tan 4 U-i')='^^4¥P^. cot ^ ^• 

 sm 4 (7 +»') 



log cot 4 F = 9-6305884 

 log sin i (7'— v')= 9-8504073 



19-4809957 .-. k {A—i')=2Z° 3' 43"-972 



log8mi(7' + v')= 9-8518340 



9-6291617 .-. A, = 46° 15' 41"-253 



.-. i' = 0° 8' 13"-309 



, 1 , sin i (A, + i') , ^ r , ,\ 

 cot \ a' = -, — \\ J ■/ tan \ {y'—v') 

 sm i {A,—i) 



log tan 4 (7'— J'') = 100018485 

 log sin 4 (^,+0= 9-5954188 



19-5972673 .-. 4«' = 44°43'3"-6S4 



log sin I {A—i') = 9-5929873 



10-0042800 .-. a' = 89° 26' 7"-268 



Second SpJierical Triangle. 



i A,=z 23° 7' 50"-626 

 i (X,— C) = 20° 14' 12"-581 

 i (\+C) = 21° 6' 21"-617 



\, = 90°— V = 41° 20' 34"-198 ; 

 C = 0° 52' 9"-036 



f 1 /^ , \ cos i (X,— C) 



tan 4 (^,, + co)=.^^^ ^ ^^^_j_^^ cot i A, . 



log cot i A, = 10-8693990 



log cos 4 (a,— C) = 9-9723282 



20-3417272 .-. i {A,, + w) = 66° 59' 15"017 



log cos k {\ + C)= 9-9698424 



10-3718848 



