the mean Denfity of the Earth. 701 
At a' 
Theodolite 
— 4 ft. 10 in. 
Ate' 
Theodolite 
— 4 ft. 8| in. 
E t «V 
0 / 
102 48: 
0 / 
00 7 K- 56 E 
a'c'V 
0 / 
121 I2|^f 
0 / 
b' 6* IE 
E a ¥ 
97 Si* 
¥ 8 10 e 
9# 6 E 
E a'b' 
65 58 | * 
b' 6# 4jD 
Ka'c' 
■za'd’ 
88 6 *• 
I 08 2 l|# 
c' IX^f2o|D 
d' 2 * 34 -Ie 
E 7 I9E 
At d! 
a’d'cd 
Theodolite 
169 14I* 
= 4 ft- S in. 
«' I2*3S|E 
<?' 2 48 D 
At b 
Theodolite 
r: 4 ft. 9! in. 
c’b'a' 
36 41 i* 
0' 5 * 44 §e 
■ : * ' ]• > }■ ■ r : 
c'bz 
53 261* 
E 8^4X{e 
C f 4 41 D 
r, ' , • . 
Several other angles and bearing of objects were taken, 
which, being of no ufe in computing the attraction of 
the hill, are here omitted. 
The foregoing tables, containing all the angles col- 
lected together which were obferved at the fame point, 
include all the horizontal angles that were at different 
times taken for afcertaining the relative places of the 
principal points and objeCts on a horizontal plane. The 
numerous other angles ufed,in finding the feCtions of the 
ground, are given hereafter, with their computed refults . 
annexed to them. 
We now proceed to fpeak of the two principal bafes 
which were accurately meafured, as foundations on 
which every thing elfe rauft depend; and firft, 
Of 
