of Van Dietnen's Land. 



95 



Extract from Field Book of 12-inch Altitude and Azimuth 

 Instrument, as adopted by Mr. Sprent at the Main Stations. 



DROMEDARY STATION. 



Names of 



□ 



Stations and 



OS 



Stars 



o u 



observed to. 



'^ & 





K 



Butler's") 

 Hill. 1 





... 



Platform ) 

 Peak, r 



1 



7 



Brown Mt. 





rj Argus E. 





Brown Mt. 





aCrucis"E. 





Brown Mt. 





Rumney's 





Hill, Top of 





Stones. 





OBSERVATIONS. 



Horizontal Angles. 



Reading. 



Degrees & 



Minutes. 



47 57 



290 46 

 307 36 



Reading of 



Three Verniei 



Seconds 



75 65 25 



10 30 25 



40 40 45 



Mean Reading. 



47 57 55-0 



290 46 21-6 

 307 36 41-6 



Angle. 



117 11 33-4 

 117 11 34-2 







Elongations. 





Reading. 

 Degrees & 

 Minutes. 



Reading of 



Three Verniers 



Seconils. 



Mean Reading. 



Reading of 

 Levels each 

 2 Seconds. 



Date. 



89 59 

 155 56 



60 

 90 



60 40 

 50 70 



f II 



89 59 53-3 

 155 57 10-0 



39 29 

 35 32 



1851 

 June 5 



89 59 



161 19 



89 59 



60 

 55 

 70 



55 35 

 10 30 



65 45 



89 59 50 

 161 19 31-3 



90 0-0 



43 26 

 43 26 





Elevations and Depressions. 



Baro- 

 meter. 



27-016 



Thermometer. 



46 



46 



Reading 

 Degrees 



and 

 Minutes 



Reading 



of 

 Vernier 

 Seconds 



!8 46 74 40 



1 12136 24 



!8 46 74 42 



12|38 24 

 18 46i74 44 



1 12 38 24 



Mean ot 

 Verniers 



57 

 30 

 58 

 31 

 59 

 31 



Angle, 



1 13 3 

 1 12 30 

 1 13 2 

 1 12 31 

 1 13 1 

 1 12 31 



1 12 45-6 



