44 



MEASUREMENT OF AN ARC 



Shenmmalli from S. E. end of the Base 83991.3 Feet. 



TRIANGLES. 



Observed 

 Angles, 



<> 



— < 





e 





fa 



O 



<o 



5' ?> 







QJ U 





& 



-e x 

 Q.W. 



H 



S i 



00 



1 



Angles for 

 Calculation. 



42 fe 



CO 



Shenmmalli, , 



S. E. end of the Base, 

 Yaelmatoor hill, . - ... 



82 1 30 

 38 16 39.75 

 59 41 45.58 



// 



—0.51 







—0.32 







—0.35 







82 1 31.5 

 38 16 41. 

 59 41 47.5 



1 79 59 55.33'j j l". 18 j— 5.85 1 180 0. 



■v "i i i.-uf "{Shennimaili, 



Yaelmatoor hill from < a „ , ' 



(§. E. end o 



of the Base, 



60265.1 

 96312.9 



JK&HagaiaaHi from 5. E< end of the Base "90310.2 



110 



Hallagamalli, 



S. E. end of the Base, , 

 Yaelmatoor Mil, .,,.„., 



47 31 21.37—0.52 

 88 44 30.92—1.0 

 43 44 9.07|— 0.53 ' 



. 





80 1.36 ] 



n 



2.05 1—0.69 



47 31 21. 

 88 44 30.25 

 43 44 8.75 



180 0. 



Yaelmatoor Mil from \ J*"* 6 ™ 1 "j> : * '^"" 

 (S. fc. end of the Base, 



103600.5 

 96346.5 



The above Base is the mean distance obtained in the three triangles on the Bases, N. W. end of 

 the Base from S. E. end of the Base; S. E. end of the Base from Qodoormalli j and Hallagamalli 

 from Shennimaili. 



Shennimaili from Yaelmatoor hill 60265.1. 



Shennimaili, 



Yaelmatoor Mil, ...... 



Putchapolliam Station, , 



92 57 35.69—0.45 





: 



43 23 23.25—0.20 







43 39 1.19 1—0.20 







92 57 35.5 

 43 23 23.25 

 43 39 1.25 



11 



180 0.13 



0.85 1—0.72} 180 0. 



Putchapolliam Station from I^V ^Vu 



t Yaelmatoor hill, 



59977, 

 87191, 



Yaelmatoor hill from S. E. end of the Base 96344.75. 



12 



Yaelmatoor hill, .'■. 



S. E. end of the Base, . . . 

 Putchapolliam Station, . . . 



16 18 22.33 



62 39 2-7.25 



101 2 8.73 



—0.13 

 —0.04 

 —0.39 





179 59 58.31 



16 18 24. 



62 39 27.5 



101 2 8.5 



0.56 1—2.25 j 180 0. 



T , , v ... c , ,. , (Yaelmatoor hill, ..... 



Putchapolliam Station from fe R end of ^ Bag ^ 



87193. 

 27561, 



