240 
GEOGRAPHIC TABLES AND FORMULAS. 
[BULL. 214. 
Table 21. — Log m, for use in computing spherical excess. 
[Computed for the Clarke spheroid of 1866.1 
Lat. 
Logm. 
Lat. 
Log m. 
Lat. 
Logm. 
o / 
00 
1.40695 
o 
25 
00 
1.40590 
o 
50 
/ 
00 
1.40349 
30 
1. 40695 
25 
30 
1.40586 
50 
30 
1.40344 
1 00 
1.40695 
26 
00 
1.40582 
51 
00 
1.40339 
1 30 
1. 40694 
26 
30 
1. 40578 
51 
30 
1. 40334 
2 00 
1.40694 
27 
00 
1. 40573 
52 
00 
1. 40329 
2 30 
1. 40694 
27 
30 
1. 40569 
52 
30 
1.40324 
3 00 
1.40693 
28 
00 
1. 40565 
53 
00 
1. 40319 
3 30 
1. 40693 
28 
30 
1.40560 
53 
30 
1.40314 
4 00 
1.40692 
29 
00 
1. 40556 
54 
00 
1. 40309 
4 30 
1. 40691 
29 
30 
1. 40552 
54 
30 
1. 40304 
5 00 
1. 40690 
30 
00 
1.40548 
55 
00 
1. 40299 
5 30 
1.40689 
30 
30 
1. 40544 
55 
30 
1.40295 
6 00 
1. 40688 
31 
00 
1. 40539 
56 
00 
1. 40290 
6 30 
1. 40687 
31 
30 
1. 40534 
56 
30 
1. 40285 
7 00 
1. 40686 
32 
00 
1.40530 
57 
00 
1.40280 
7 30 
1.40685 
32 
30 
1. 40525 
57 
30 
1. 40276 
8 00 
1.40683 
33 
00 
1.40520 
58 
00 
1.40271 
8 30 
1. 40682 
33 
30 
1. 40516 
58 
30 
1.40266 
9 00 
1.40680 
34 
00 
1. 40511 
59 
00 
1.40262 
9 30 
1.40679 
34 
30 
1.40506 
59 
30 
1. 40257 
10 00 
1.40677 
35 
00 
1. 40501 
60 
00 
1.40253 
10 30 
1.40675 
35 
30 
1. 40496 
60 
30 
1.40249 
11 00 
1. 40673 
36 
00 
1. 40491 
61 
00 
1. 40244 
11 30 
1. 40671 
36 
30 
1.40486 
61 
30 
1. 40240 
12 00 
1.40669 
37 
00 
1. 40482 
62 
00 
1. 40235 
12 30 
1. 40667 
37 
30 
1 . 40477 
62 
30 
1.40231 
13 00 
1.40665 
38 
00 
1. 40472 
63 
00 
1.40227 
13 30 
1.40663 
38 
30 
1. 40467 
63 
30 
1. 40223 
14 00 
1. 40660 
39 
00 
1. 40462 
64 
00 
1. 40219 
14 30 
i: 40658 
39 
30 
1.40457 
64 
30 
1. 40215 
15 00 
1. 40655 
40 
00 
1. 40452 
65 
00 
1. 40210 
15 30 
1. 40653 
40 
30 
1. 40446 
65 
30 
1.40207 
16 00 
1.40650 
41 
00 
1. 40441 
66 
00 
1. 40203 
16 30 
1.40647 
41 
30 
1. 40436 
66 
30 
1. 40199 
17 00 
1. 40644 
42 
00 
1. 40431 
67 
00 
1.40195 
17 30 
1. 40642 
42 
30 
1. 40426 
67 
30 
1.40192 
18 00 
1.40639 
43 
00 
1. 40421 
68 
00 
1.40188 
18 30 
1.40636 
43 
30 
1. 40416 
68 
30 
1. 40185 
19 00 
1. 40632 
44 
00 
1. 40411 
69 
00 
1.40181 
19 30 
1.40629 
44 
30 
1. 40406 
69 
30 
1. 40178 
20 00 
1. 40626 
45 
00 
1. 40400 
70 
00 
1. 40174 
20 30 
1.40623 
45 
30 
1. 40395 
70 
30 
1. 40171 
21 00 
1. 40619 
46 
00 
1. 40390 
71 
00 
1. 40168 
21 30 
1.40616 
46 
30 
1. 40385 
71 
30 
1. 40164 
22 00 
1. 40612 
47 
00 
1.40380 
72 
00 
1. 40161 
22 30 
1.40608 
47 
30 
1. 40375 
23 00 
1. 40605 
48 
00 
1.40369 
23 30 
1. 40601 
48 
30 
1.40364 
24 00 
1. 40597 
49 
00 
1. 40359 
24 30 
1. 40594 
49 
30 
1. 40354 
