of Van Diemen^s Land. 



103 



!X Constant Log ... 7-9945409 

 a 



d = 23486-7 ... = 4-3708232 



Sin. z = 71 54 9-4 = 9-9779658 



Sec. I =. 42 52 25-66= 0-1349824 



Sin. i Sura 42 53 1-64 9-8328368 



Sec. i Difference 35"98 OQ-OOOOO 



Log 204"7 = 2-3111491 



■=. 3 24-7 = Angle of convergence. 



71 54 9-4 Bearing of Wellington from Cliurch-street. 



N. 71 57 34-1 E. Bearing of Church-street from "Wellington. 

 97 51 41-6 Angle at Wellington; -Church-street,— Dromedary. 



N. 25 54 7-5 W. = Bearing of Dromedary at Mount Wellington. 



74244-02 Dist. by triangulation from Mt. Wellington to Dromedary. 



!f. Constant Log = 7-9945409 



Log. (Z=74244-02 

 Cos. z =25 54 7-5 



= 4-8706615 

 = 9-9540214 



2-8192238 = 659'51 



"' ■ Constant Log =0-1975354 



3 a a 



Log. (^2 = 2 Log. 74244-02 = 9-7413230 



Sin. ^ z =2 Sin. 25 54 7-5 = 9-2806338 



Tan. Z = 42 53 37*63 = 9-9680415 



9-1875337 = '15 



, „ 659-"36 



Difference of Latitude = 10 59-36 



Latitude of Wellington ... = 42 53 37-63 



Latitude of Dromedary ... = 42 42 38-27 



^ Sum. of Latitudes =42 48 7'95 • 



J Difference = 5 29-68 



^ Constant Log = 7-9945409 



a 



d = 74244-02 == 4-8706615 



Sin. s = 25 54 7-5 = 9-6403169 



Sec. I = 42 53 37-63 = 0-1351231 



Sin, 4 Sum. = 42 48 7-95 = 9-8321701 



Sec. I difference =05 29-68 = 0-0000006 



Log 297-04 = 2-4728131 



