OPERATIONS IN THE PENI-NSU.CA. 2^7 



and Car7iatighur, and reduced to the same latitude; 

 but this is not to be wondered at, considering under 

 what great disadvantages they were made, and the 

 extreme accuracy required in making them : and it 

 may be further remarked, that Carnatighiir is by no 

 means an eligible station, on account of the great 

 mass of mountains on the west, and the low sandy 

 plain to the east, which conies to the foo.t of the 

 mountain. Such an inequality of matter must doubt- 

 less produce a great lateral attraction, and sensibly 

 affect the instrument. The station on Balroyndroog, 

 on the top of the western ghauts, has been laid asidq 

 on a similar account. 



The relative positions of Savendroog, Mullapimnabetr 

 ta, and Yerracondah, havingbeen fixed with great accu- 

 racy, the connection with the observatory at Madras is 

 effected, by working back to Carcmgoolif, by means of 

 the oblique arcs, (Art. 15) and tlien using the northing 

 and easting, and computing spherically, by converting 

 the easting into an arc at right angles to the meridian of 

 Carangoolij, and passing tlirough the observatory ; and 

 alsonsing the co-latitude of the point of intersection of 

 the said arc and meridian. Trom this computation, the 

 latitude of the stone pedestal in the centre of the ob- 

 servatory is had equal 13" 48' 7". The position of the 

 flag-statf-' at Mangalorc, is deduced iVoni the meiidian 

 of Balroyndroog, by using the southing and v\'esting, 

 in a similar manner as at Cararigoohf, with respect to 

 the observatory. It is thence found to be in lat. 

 l!2" 51' 38" N. 'and 34' 30'' W. from the nuiidi^in of 

 Balroifudroog. By summing up the respective dilfe- 

 rences ot" longitude, we shall have 5' '25' 23" for the 

 longitude oi' illaffgalore west from the observatory ; ti) 

 which add 'i' 22', the easting of tlie church st^-eple ia 



