Mr. button’s Calculations to afcertain 
section 71, from 
to K. 1 
section 72, from 
tO N. 
Pole. 
Slope 
Dili. 
Vert, z’s 
at 
Horiz. 
Dift. 
Diff.ofl 
Alt. | 
Pole. 
Slope 
Dift. 
Vert. z.’s 
at y. 
Horiz. 
Dift. 
Diff.of 
Alt. 
1 
727 
i 3 39 i D 
706 
167 
1 
52 S 
0 / 
3 I0E 
527 
38 
J2 
1455 
44 z 
H 34 
242 
2 
1188 
4 10 
1185 
95 
n 
0 
1720 
9 4 i 
1699 
267 
3 
1594 
6 8 
j 5 8 S 
179 
4 
1984 
7 5 ^ 
1965 
267 
Ends 
at n\ 
5 
2 547 
7 3 
2528 
3°8 
Ends 
at k. 
1 
Befides thefe fedlions there were many more Angle 
points, whofe places and relative altitudes were obferved 
and computed, but it is not neceffary to abftradt them all 
here. 
The following plate (Tab. viii.) has 7 2 figures anfwer- 
ing to thefe 7 2 fedtions, each to each, according to the 
numbers. In thefe figures, the line having the letters p,p, 
p, fee. annexed is the fediiqn line, the letters p, p, 8cc. de- 
noting the poles ; the other line, forming the angle with 
the fedtion, is the bafe line ; and between them are the 
degrees and minutes contained in the angle formed by 
them ; at the angular point was obferved the elevation or 
depreffion of each point p, and the bearings or hori- 
zontal angles were obferved at the other end Of the 
bafe, from whence faint lines ar^ drawn to ibme of the 
points p forming with the bale line thofe horizontal 
angles. 
