17^ MEASUREMENT OF AlJ AUC ON THE 



Coonum hill from Mooratan station 56538,5. 



Mooratan station /ro;?? Chengcaud station 72253,8. 



32. 



Mooratanstaition, 

 Chengcaud sta- 

 tion, 

 Trivaiidepooruni, 



64 42 38,6 



66 8 35,2 

 49 8 53,9 



180 00 7,6 



— ,5 



— ,5 

 -4 



1,4 +6,4 180 00 00 



64 42 35 



66 8 32 

 49 8 53 



_ . , ' f Mooratan station, - 



Tnvandcpoorum from | Chengcaud station, - 



87360,7 

 86367,6 



The angles have been taken with much care, and 

 I believe with as much accuracy as the nature of 

 such a process admits of; difficulty, however, very 

 frequently atose from the haziness of the weather, 

 which rendered the objects at the very distant 

 points extremely dull, and occasioned some irregu- 

 larity in the angles. Whenever that happened, 

 the observations were often repeated, and in case 

 any one, in particular, was different from the 

 other so much as ten seconds, it was rejected till 

 the three angles of the triangle had been observ- 

 ed. If the sum of these angles was near what it 



