360 V ACCOUNT OF TItlGONOMETRICAL 



SECTION V. 



Length of the Perpendicular Degj^ee, and the Latitudes and relative 

 Longitudes of all the great Stations of Ohs^rvationy and other 

 places Qu the two Coasts. 



10. The measurement of an arc perj3endicular to the meridian, 

 and the length of a degree in latitude 12' 55' 10". 



For determining the latitude of Savendroog, we have at Doda 

 goontah station, the he:2ixm^ oi Savendi^oog station with the meridian 

 7^0 10' 18''.63 S. W'^'and the distance between these two stations 

 = 121933.2 feet. These will give the westing of Savendroog =■ 

 II8399.2 feet, and the southing of the point on the meridian of 

 Dodagoontah, where the perpendicular let fall from Savendroog^ will 

 cut the said meridian = 9>Q\^S.S feet, which is equal to an arc of 

 4' 48".88, and this deducted from the latitude of Dodagootitah gives 

 12" 55' H".03. The wresting will give an arc perpendicular to the 

 meridian 19' 29"-04, with which, and the co-latitude of the above 

 point, the latitude of Savendroog will be had 12^ 55 i0".24. 



Note. The j?ieridio?2al degree is taken at 604^98 fathoms, being the 

 computed degree for Latitude 12" 5o' 10", as deduced from the meU' 

 sured degrees for latitude 1 1" 59' 55" and latitude .52' 02' 30'. 



