106 On the Trigonometrical Survey 



Log. 'la d o / « — 3-0657791 



a 



Sin. z = 110 36 29.16 = 9-9712805 



Sec. I = 42 42 38-27 = 0-1388375 



Sin. ^ Sum. = 42 39 13-47 = 9-8309517 



Sec. I Diff. = 03 24-8 = 0-0000002 



= 3-0018490 = 1004-24=16 44-2 

 Angle of convergence. 



Angle of convergence = 16 44-2 



Bearing of Brown Mountain 1 ^^r. „„ „„_ 



at Dromedary | — "" ^^ ^^ ^ 



110 53 13-4 

 180 0-0 



Bearing of Dromedary at Brown 1. g eg fi 4(i-6 W 

 Mountain J 



Angle; — Dromedary,— ") ^^ o-? ar a 



Table Mountain | ^^ ^^ ^^'^ 



Bearing of Table Mountain > ^ i-i on oq.o Axr 



at Brown Mountain j" -■ ^- ^*' ^^ "^"^ ^ ^• 



180 0-0 



Z. =N. 38 29 26-8 W. 

 Distance by Triangulation from Brown Mountain to Table Mountain > 



d = 1 68374-26 j 



Log. ^ Constant = 7-9945409 



a 



Log. d = 5-2262757 



Cos. « == 38 29 26-8 = 9-8936008 



3-1144174 = 1301-4 



Log.— ^ Constant =0*1975354 



° 3a3 



Log, rf2 = 2 Log. d == 0.4525514 



Sin,2 « = 2 Sin. 38 29 26-8 = 9"5881234 



Tan. I = 42 35 48-67= 9-9635262 



0-2017364 = -16 



Difference of Latitude = 1301" 24 ^ 0° 21' 41"-24 

 Latitude of Brown Mountain 42 35 48 -67 



Latitude of Table Mountain 42 14 7 -43 



In like manner of computation the Brown Mountain at Table Moun- 

 tain is S. 38° 13' 38"-6 E. 



