the mean Den/ity of the Earth. 
737 
SECTION 39. 
Pole. 
Vert, ^’s 
at u. 
Bearings 
at z. 
Diff. of 
Alt. 
1 
0 / 
4 28 D 
0 / 
69 7 
312 D 
2 
5 35 
59 8 
345 
3 
6 30 
52 3 
366 
4 
8 9 
45 25 
418 
5 
10 32 
3 8 3 ° 
485 
6 
12 47 
34 3 
544 
7 
13 47 
29 27 
53 i 
S E C T I 
6 
T =t* 
0 
Pole. 
Vert. z.’s 
at p. 
Bearings 
at p. 
Diff. of 
Alt. 
1 
0 / 
8 45 d 
0 j 
9 IS 
735 d 
2 
8 46 
16 25 
750 
3 
9 5 8 
27 16 
906 . 
4 
8 38 
3 ° 52 
804 
5 
7 6 
34 3 ° 
681 
6 
s 23 
37 55 
533 
S E C T I 
O N 41. 
Pole. 
Vert. z.’s 
at 0. 
Bearings 
at a. 
Diff. of 
Alt. 
1 
0 / 
10 41 D 
0 / 
23 33 
Si° D 
2 
II 31 
S 2 3 6 
769 
3 
8 52 
37 2 3 
682 
4 
5 3 8 
44 24 
524 
5 
4 S 2 
46 39 
480 
6 
4 6 
5i 8 
455 
7 
0 / 
2 8 
0 / 
56 26 
269 
8 
1 21 
58 30 
I78 
9 
0 57 
59 53 
129 
10 
0 43 
62 21 
103 
1 1 
0 40 
6 4 35 
102. 
12 
0 5 
•sf" 
00 
10 
13 
O 10 E 
6 9 43 
36 A 
14 
o 32 
71 20 
IO9 
Pole. 
S E C T I 
Vert. z.-s 
at m. 
ON z} 
Bearings 
at s. 
.2. 
Diff. of 
Alt. 
1 
0 / 
O 17 D 
0 / 
73 4 8 
0 
2 
3 25 E 
80 57 
72 A 
3 
4 52 
8 5 4 
126 
4 
6 52 
88 53 
232 
5 
8 33 
9© 25 
332 
6 
10 2 
9 1 34 
439 
7 
11 44 
93 0 
610 
8 
13 7 
94 0 
787 
9 
15 10 
94 34 
1002 
id 
17 21 
95 13 
1292 
1 1 
18 3 8 
95 37 
1506 
12 
19 36 
96 2 
! 73 6 
*3 
19 38 
96 O 
1727 
Pole. 
S E C T I 
Vert, /.’s 
at 0. 
O N 1 
Bearings 
at A. 
■ 3 * 
Diff. of 
Alt. 
1 
0 / 
12 3 d 
0 / 
3 1 52 
759 D 
2 
10 54 
36 42 
77 6 
4Y 
Vol. LXVIII. 
