473 
Trigonometrical Survey. 
From those corrected heights, the others to the northward 
have been deduced. The heights to the westward of Butterton 
were determined from that of Maker. A mean of two or three 
results, by using ~ of the contained arcs for refraction, is taken 
for the height of the station on Mintern Hill. 
We subjoin the following elevations and depressions, for the 
use of those who may wish to examine the tables of heights 
and refractions, in the Philosophical Transactions for 1795. 
And here it is to be noted, that the axis of the telescope was 
always about £-§- feet from the ground, unless the contrary is 
specified. 
At Hanger Hill. 
/ Si 
The ground at St. Ann’s Hill depr. 4 36 
at Banstead elev. 10 39 
At St. Amis Hill. 
The ground at Bagshot Heath elev. 11 2O T 
& ° Instrument on the half 
at Banstead elev. 10 2 V scaffold : the axis of the 
at Hanger Hill depr. 6 i 3 J feahigh. 
The top of the flagstaff* near 
Hampton Poor House depr. 1 2 54 
N. B. The flagstaff was about 41 feet high. 
1 - oh * * 
Near Hampton Poor House. 
Phe ground at St. Ann S Hill elev. 8 17 Instrument on the whole 
scaffold : the axis about 3 feet high. 
