h% 



MEASUREMENT OF AN ARC 



The triangles have been brought down from Suddragherry and SeJcundermdlZi, for the purpose ol 

 ascertaining the height of this Base above the Sea, which was necessary to reduce it. After the 

 reduction, the triangles commenced at this Base, and have been carried back in the following order, 

 to bring out the same distance Suddragherry from Sekundermalli. 



West end" of "the Base" from East end of the Base = 30507.5 Feet. 



fe 



TRIANGLES. 



Observed 



Angles. 



93 



_ 1 







S » 



£ 



O) 



•2 <o 



© 





Z u 



u 



& 





u 



■ Q 



«J 





Angles for 

 Calculation. 



C rv. 



30 



W. end of the Base, 

 E. end of the Base, . 

 Coonatoor hill, . . . . . 



62 54 42.4 

 62 47 0.63 

 54 IS 16.5 



—0.07 

 —0.07 

 —0.07 



179 59 59.53 



62 54 42. 

 62 47 1. 

 54 18 17. 



0.21 j— 0.68 {180 0. 



_, . i , ... . € W. end of the Base, 

 Coonatoor hill from | E end of the ^ 



33405.8 

 33444.1 



31| 



W. end of the Base, 

 E. end of the Base, 

 Taula,ootpotha ? . . . o 



■ ■ 



30 31 36.82 

 76 t$ 58.4 

 73 9 30.5 



j 



180 0.72 





1 



30 31 36. 

 76 18 53. 

 73 9 31. 



180 



m , , ,, , C W. end of the Base, ., 

 Taulaootpotha from | E end of fte Bage » % 



30969.7 

 L6190.35 



W. end of the Base from Taulaootpotha — 30969.7 



W. end of the Base,. 

 Taulaootpotha, . . . . 

 Vullunkofapotha, . . 



32* 



110 52 45.1 

 15 53 54.651 



110 52 45. 

 15 53 54.5 



53 13 20.5 



180 0. 



..„,,. C W. end of the Base, 



Vullunkotafrom J TauUeotl , otha> ..'. 



10591.7 

 36126.4 



E. end of the Base from Coonatoor hill = 33444.1. 



E. end of the Base, 

 Coonatoor hill, „ . „ 

 Vuilunkota, 



72 27 13.17 

 60 b 16.81 

 47 27 32.25 



—0.11 

 —0.08 

 —0.11 



72 27 12.5 



60 5 16. 

 47 Tl 31.5 



133 



180 2.23} JQ.g Qj-H 93 j 18 0. 



tr „ , , ., e C E. end of the Base, ....". 

 Vulluakotapotha from \ Coonatoor m :./;.;.; 



9345. 

 43279.6 



