756 
AECHDEACON PEATT ON THE DEFLECTION 
Four Tables op Eeductioa, calculated by formulae (4) and (5). 
Table IV.~Depth =1000 miles. 
No. 
of the 
com- 
part- 
ment. 
b- 
1 ^ 
log sin^0. 
log sin 1 e 
4.0-8406207 
= logtan'4/. 
log cos 
log sin 1 0 
4-log cos -J/ 
-0-9030900-20 
=log|. 
1 I 
0*393 or 
6 23 35 
7*8363279 
8-6769486 
9*9995100 
2*7389279 
2 
0*433 
□r 
0 25 59 
7*8784168 
8*7190375 
9*9994054 
2-7809122 
3 
0*474 
or 
0 28 26 
7*9175489 
8*7581696 
9*9992882 
2-8209271 
4 
0-524 
or 
0 31 26 
7*9611105 
8*8017312 
9-9991303 
2*8633308 
5 
0*576 
or 
0 34 34 
8*0023763 
8*8429970 
9*9989487 
2*9044150 
6 
0*634 
or 
0 .38 2 
8*0438816 
8*8845023 
9-9987280 
2*9456996 
7 
0*697 
oa 
0 41 49 
8*0850648 
8-9256855 
9*9984634 
2*9866182 
8 
0-767 
or 
0 46 1 
8*1266283 
8*9672490 
9*9981406 
1*0278589 
9 
0*843 
or 
0 50 35 
8*1677179 
9*0083386 
9-9977552 
1*0685631 
10 
0*928 
or 
0 65 41 
8*2094324 
9-0500531 
9 9972826 
1*1098050 
11 
1*021 
or 
1 1 16 
8*2509274 
9-0915481 
9*9967147 
1*1507321 
12 
1*123 
or 
1 7 23 
8*2922508 
9*1328715 
9-9960323 
1*1913731 
13 
1*236 
or 
1 14 10 
8*3339012 
9-1745219 
9-9952026 
1*2321938 
14 
1*359 
or 
1 21 26 
8*3744877 
9-2151084 
9*9942299 
1*2718076 
15 
1*495 
or 
1 29 42 
8*4164693 
9-2570900 
9*9930188 
1*3125781 
16 
1-644 
or 
1 38 38 
8*4576902 
9*2983109 
9-9915873 
1*3523675 
17 
1*808 
or 
1 48 29 
8*4990171 
9-3396378 
9*9898643 
1*3919714 
18 
1*990 
or 
1 59 24 
8*5406431 
9*3812638 
9-9877819 
1*4315150 
19 
2*189 
or 
2 11 20 
8*6819954 
9*4226161 
9-9853037 
1*4703891 
j 20 
2*406 
or 
2 24 22 
8*6230654 
9*4636861 
9-9823649 
1*5085203 1 
21 
2*649 
or 
2 38 56 
8*6647864 
9*5054071 
9-9788067 
1*5466831 
22 
2*914 
or 
2 54 50 
8*7061631 
9*5467838 
9-9746090 
1*5838621 . 
23 
3*204 
or 
3 12 14 
8*7473285 
9*5879492 
9-9696639 
1*6200824 ; 
24 
3*527 
or 
3 31 37 
8*7890017 
9*6296224 
9-9637547 
1*6558464 ; 
25 
3*853 
or 
3 51 11 
8*8273552 
9*6679759 
9-9574003 
1*6878455 j 
26 
4*266 
or 
4 16 58 
8*8715081 
9*7121288 
9-9488494 
1*7234475 
27 
4*693 
or 
4 41 35 
8*9128474 
9*7534681 
9-9394965 
1*7554339 
28 
5*162 
or 
5 9 43 
8*9541030 
9*7947237 
9-9287188 
1*7859118 ' 
29 
5*680 
or 
5 40 48 
8-9955141 
9*8361348 
9-9163146 
1*8149187 i 
1 
30 
6*253 
or 
6 15 11 
9*0371072 
9-8777279 
9*9021263 
1-8423235 j 
31 
6*885 
or 
6 53 6 
9-0787356 
9-9193563 
9-8860837 
1*8679093 
32 
7*605 
or 
7 36 18 
9*1217006 
9-9623213 
9-8674166 
1*8922072 j 
33 
8*40 
or 
8 24 0 
9*1645998 
10-0052205 
9*8468584 
1-9145482 1 
34 
1 9*25 
or 
9 15 0 
9*2061309 
10-0467516 
9*8248529 
1*9340738 
35 
10*20 
or 
10 12 0 
9*2481811 
10 0888018 
9*8005771 
1*9518482 ' 
36 
11*25 
or 
11 15 0 
9*2902.357 
10*1308564 
9-7743449 
1*9676706 ' 
37 
12*41 
or 
12 24 36 
9*3322481 
10*1728688 
9*7462853 
1*9816234 
38 
13*71 
or 
13 42 36 
9*3747625 
10*2153852 
9*7161171 
1*9939696 
39 
15*15 
or 
15 9 0 
9*4172174 
10*2578381 
9*6843535 
0-0046609 
40 
16*77 
or 
16 46 12 
9*4601918 
10*3008125 
9*6506910 
0*0139728 
