4)55 
Between 
Rook's Hill and Leith Hill 
Rook's Hill and Hind Head 
Hind Head and Leith Hill 
Trigonometrical Survey , 
At Chanctonbury Ring. 
Mean. 
o / // 
9 2 23 25 I ' 
25,25] * 
47 37 | g 
39^5 ^ 
4)5 i° 4) 6 
Rook's Hill and Ditchling Beacon - 179 8 4 
} 6 
art. v. Further Particulars respecting the Operations of the 
Tear 1792. 
Excepting the stations Nine Barrow Down, Black Down, 
Wingreen, Long Knoll near Maiden Bradley, Beacon Hill, 
Inkpin Beacon, with those about the base of verification, all 
the stations >vhich constitute the series hereafter given, were 
selected this year. 
From an opinion which we entertain, that triangles, whose 
sides are from 12 to about 18 miles in length, are preferable 
for the general purposes of a survey, to those of greater di- 
mensions, we have endeavoured to select such stations as might 
constitute a series of that description. In those which were 
chosen to the eastward of Bagshot Heath, Hind Head, and 
Butser Hill, we have in some degree succeeded ; but, from local 
circumstances, we have not been equally fortunate with those 
to the westward. Instead of Dean Hill, it was hoped that the 
ground upon which Farley Monument stands, might have 
suited our purpose ; but the wood to the west of the hill was 
found to be so high, that even with the whole stage, the 
3N 2 
