A DETERMlNATiUX UF THE HEIGHT OF BAKN BLUFF, 



ABSTRACT OF OBSERVATIONS. 

 C a spot within the stockade at the trigonometrical 



station on Cradle Mountain. 

 A pole with a flag on it was erected on the 

 spot and observations taken to the j>oint on it 

 appearing above the stockade approximately 4 

 feet above the solid rock. 

 B a spot on Bam BlujBf towards the South-West 



end selected as the highest point. A pole with 

 a flag on it was also erected here, and all 

 observations were taken to the ground line of 

 the pole. 

 X and Y the tops of flags at the ends of a base measured 

 on the ridge connecting Barn Bluff and Cradle 

 Mountain. 

 Z the top of a flag to form a base from X and Y by 



triangulation for obtaining positions of C and 

 B. 

 Length of base X Y reduced to the horizontal 26.089 

 chains, 26.091 chains, 26.0 TS chains. Length adopted 

 1,722 feet. 



HORIZONTAL ANGLES OBSERVED. 

 Each entry in the coUnnns Face Ri.i;lit and Face Left is the 

 mean of the vernier readings at one setting. 



Face Right. 



Face Left. 



Caiciilateti hor- 

 izontal distance 



feet. 



From 1-2 feet above Z (top of flag;, 27/1-2/15. 





 Y 

 X 

 V> 



Sun 1st 

 Sun 2u(l 



C 



z 



R 

 X 



From 1 



170 59 50 



22:i S.i 30 



249 8 50 



348 30 5 



213 30 40 



From "4 feet 



j 359 59 40 



2-U5 28 50 



209 58 25 



I 194 54 



"4 feet above X 



180 1 20 

 223 34 20 

 249 10 

 348 30 40 



10 



ISO 35 



223 33 55 



249 9 25 



348 30 22 



213 



above Y (top of flag), 28/1 2/) 5 

 359 58 10 359 58 55 



24(5 28 40 24<) 28 45 



209 57 40 209 58 2 



194 54 10 194 54 5 



(top of flag), 

 vatious taken.) 



9.1 17-61 



3,887-45 

 3,123-55 



7,27 1 -78 



6,872-04 

 3.887-45 

 10,01 8-40 

 1,722- 



(Two separate sets of ubser 



