100 On the Trigonometrical Survey 



in-verted ; the mean of tliese giving one of the results stated 

 below. The whole form 27 sets of four Altitudes each. 







/ 



II 



42 



52 



26 



}} 



33 



28-4 



33 



3) 



24-9 



)y 



33 



26-8 



3> 



}> 



27-9 



}} 



33 



26-2 



}> 



i3 



26-5 



>) 



33 



27-1 



3) 



3) 



25-3 



33 



33 



27-2 



' JJ 



33 



23-8 



3) 



33 



25-6 



5J 



3> 



26-3 



33 



33 



25-6 



J3 



33 



24-7 



3> 



3> 



24-8 



3J 



33 



24-7 



3) 



3) 



26-5 



33 



3i 



26-1 



33 



3) 



24-1 



33 



33 



23-6 



33 



33 



23-1 



i3 



33 



24-5 



33 



3> 



27-9 



33 



3J 



25-3 



33 



)> 



26-1 



43 



53 



26"66 



In August 1851, I took several elongations of « Cen- 

 taurij a Crucis, *? Argus, for fixing my Meridian mark, 

 and from these I find the latitude. They give results as 

 follows, — 



a Centauri Lat 42 52 28'1 S 



a Crucis „ ,, 28'5 



7j Argus „ „ 29-5 



Mean 42 52 28-7 S 



