OPERATIONS IN THE PENIlJJ^SULA. 371 



was 92° 49' \5".93, but as there is reason to doubt the 

 accuracy of that angle, from reasons ah'eady given, 

 to which may peihaps be added the want of experi- 

 ence, I shall reject it and adopt the one now brought 

 out for determinino- 



'& 



13. The latitude and longitude of Carangooly Hill. 



The length of the arc comprehended by the sta- 

 tions at Karnatighur and Carangooly^ as determined 

 by the triangles in 1803, was 29 11 96.9 feet, which, 

 as an oblique arc, according to the present scales, 

 will be equal 47' 56".21. 



Let P be the pole, K 

 Karnatighur, and C Ca- 

 rangooly ; and therefore 

 K'C the oblique arc = 

 47' 5Q',9.\, Then if * 

 the observed angle at 

 Carangooly, be made use 

 of, (which must be ac- 

 curate enough for this 

 purpose) we have sine 

 PK': sine z. PCK' :: 

 sine K'C : sine angle 

 K'PC equal 49' 2".9. the 



difference of longitude. Hence 1° 47' 8". 87 + 49' 

 2".9 — 2° 36' 11 ".77, the longitude o^ Carangooly from 

 the meridian of Savendroog. 



And as sine angle PCK' : sine K'P :: sine ^ PK'C 

 : PC = 77" 27' 42".2, the co-latitude of Carangooly, 

 whose complement 12° 32' IT'.S is therefore the la- 

 titude. 



14. Latitude and longitude of Balroyndroog, with 

 the position of its meridian. 



As the atmosphere was so extremely dull when 



* As determined iu 1803, equal 87° 00' 07",54. 



Bb 2 



