Trigonometrical Survey. 601 



It will now be expedient to compute the distance from Bow Brick- 

 hill to Brill, by means of another set of triangles. And it was 

 for the express purpose of verifying this distance found by the last 

 triangle, that Scutchamfly Barrow, in Berkshire, and the station 

 above Wendover, were chosen. The base on which these triangles 

 are to rest, is the distance between Nuffield and White Horse Hill, 

 viz. 120557,7 feet. 



No. of 



triangles 



Names of stations. 



Observed 

 angles. 



Diff. 



Spheri- 

 cal 

 excess. 



Error. 



Angles corrected 

 for calculation. 



Distances. 



XLI. 



Nuffield 



White Horse Hill 



Shotover Hill 



1 II u 

 62 32 5,251 — 0,53 



35 34 23,25 —0,47 

 81 53 29,75—0,74 



11 



1 



1 11 



62 32 6 

 35 34 24 

 81 53 3° 



Hill 



Feet. 





179 59 58,25! 

 Shotover Hill from < 



i>75 



" White 

 _Nuffie 



-3,5 



Horse ) 



Ld 



108050,2 

 70842,1 



xi.11*. 



Shotover Hill - 

 White Horse Hill 

 Scutchamfly Barrow 



Scut< 



26 8 8 



42 4 2 



"' 47 5° 



—0,12 

 — 0,04 

 —0,70 





—0,86 



Horse 

 /er Hill 



26 8 8 



42 4 2 



in 47 50 



Hill 







180 

 :hamfly Barrow 



from < 



0,86 



r White 

 _ Shotoi 



51261,9 

 779 68 >3 



XLIII. 



Shotover Hill 

 Scutchamfly Barrow 

 Wendover 



117 30 56 

 34 26 52 

 28 2 12,75 



-1,41 

 — 0,01 

 — 0,09 







117 30 55,25 

 34 26 52 

 28 2 12,75 



! arrow 







180 0,75 

 Wendover 



from < 



1,52 



' Scutcl 

 Shotoi 



-°>77 



lamfly I 

 rer 



I 47"3.3 



93828,6 



