The Account of a 
500 
art. v. branch 11. Consisting of the Triangles which are bounded by the 
Sides connecting the Stations Leith Hill, Hind Head, Butser Hill, Dean 
Hill, Beacon Hill, Wingreen, Nine Barrow Down, Motteston Down, Dun- 
nose, Rook’s Hill, Chanctonbury Ring, and Ditchling Beacon. 
Hind Head from Leith Hill 82187,8 Feet, mean Distance. 
No. of 
Observed 
Spheri- 
Angles corrected 
triangles 
Names of stations. 
angles. 
Diff. 
cal 
Error. 
for calculation. 
Distances. 
excess. 
0 / // 
Feet. 
XVIII. 
Chanctonbury Ring 
45 10 46,5 
— 0-44 
45 10 46 
Leith Hill 
72 56 50,25 
— 0,7 
72 56 49,25 
Hind Head 
61 52 25,5 
— 0,62 
61 52 24,75 
OO 
O 
O 
N 
V-ri 
1,8 
+ °>45 
Chanctonbury Ring < 
f Leith Hill 
i Hind Head 
“ 
102185,7 
u 07744 
XIX. 
Chanctonbury Ring 
86 44 41 
— 0,62 
86 44 39,75 
' 
Leith Hill 
3 2 43 57>5 
-0,39 
3 2 43 56.5 
Ditchling Beacon 
60 31 24,75 
— 0,38 
60 31 23,75 
180 0 3,25 
L5 
+ l >75 
Chanctonbury Ring from Ditchling Beacon 
63469,1 
XX. 
Rook’s Hill 
82 42 45,75 
-0,7 
82 42 45,25 
Chanctonbury Ring 
47 12 38 
-0,45 
47 I 2 3 s 
Hind Head 
5° 4 37 
— 0,46 
5° 4 36>75 
180 0 0,75 
1,6 
— 0,85 
Rook’s Hill from Chanctonbury Ring 
85645,4 
Butser Hill and Hind Head 
. Branch 1. 78905,7 Feet. 
XXI. 
Butser Hill 
70 25 13 
-0,39 
70 25 13 
Hind Head - 
44 28 6,25 
-0,3 
44 28 6,25 
Rook’s Hill 
65 6 40,75 
— 0,36 
65 6 40,75 
180 0 0 
1, 1 
— 1,1 
- 
Rook’s 
Hill | 
Hind Head 
Butser Hill 
- 
81954,4 
60933,8 
