58 
GEOGBAPHIC TABLES AN^D FOBMULAS. 
[bull. 234. 
Table 6. — Coordinates for projection of maps {scale t^^Vtttt) — Continued. 
[From Smithsonian Geographical Tables.] 
Lati- 
tude of 
parallel. 
Meridio- 
nal dis- 
tances 
from 
even 
degree 
parallels. 
Abscissas of developed parallel. 
Ordinates of developed 
parallel. 
5' longi- 
tude. 
10' longi- 
tude. 
15' longi- 
tude. 
20' longi- 
tude. 
25' longi- 
tude. 
30' longi- 
tude. 
o / 
72 00 
10 
20 
30 
40 
50 
73 00 
10 
20 
30 
40 
50 
74 00 
10 
20 
30 
40 
50 
75 00 
10 
20 
30 
40 
50 
76 00 
10 
20 
30 
40 
50 
77 00 
10 
20 
30 
40 
50 
78 00 
10 
20 
30 
40 
50 
79 00 
10 
20 
30 
40 
50 
80 00 
Inches. 
Inches. 
.906 
.898 
.889 
.881 
.873 
.865 
.857 
.849 
.841 
.832 
.824 
.816 
.808 
.800 
.791 
.783 
.775 
.767 
.759 
.750 
.742 
.734 
.726 
.717 
.709 
.701 
.692 
.684 
.676 
.668 
.659 
.651 
.643 
.634 
.626 
.618 
.609 
.601 
.593 
.584 
.576 
.568 
.559 
.551 
.542 
.534 
.526 
.517 
.509 
Inches. 
1.811 
1.795 
1.779 
1.763 
1.746 
1.730 
1.714 
1.697 
1.681 
1.665 
1. 648 
1. 632 
1.616 
1.599 
1.583 
L566 
1.550 
1.534 
1.517 
1.501 
1.484 
1.468 
1.451 
1.435 
1.418 
1.402 
1.385 
1.368 
1.352 
1.335 
1.319 
1.302 
L285 
1.269 
1.252 
1.235 
1. 219 
1. 202 
1.185 
1.169 
1. 152 
1.135 
1.119 
1.102 
1.085 
1.068 
1.052 
1.035 
1.018 
Inches. 
2.717 
2.693 
2. 668 
2.644 
2.620 
2.595 
2.571 
2.546 
2.522 
2.497 
2.473 
2. 448 
2. 424 
2. 399 
2.374 
2.350 
2.325" 
2.300 
2.276 
2.251 
2.226 
2.201 
2. 177 
2.152 
2.127 
2.102 
2.078 
2.053 
2.028 
2.003 
1.978 
1.953 
1.928 
L903 
1.878 
1.853 
1. 828 
1.803 
1.778 
1.753 
1.728 
1.703 
1.678 
1.653 
1. 628 
L602 
1.577 
1.552 
1.527 
Inches. 
3.623 
3.590 
3. 558 
3.525 
3.493 
3.460 
3.428 
3.395 
3.362 
3.330 
3. 297 
3.264 
3. 232 
3.199 
3. 160 
3.133 
3. 100 
3.067 
3.034 
3.002 
2.968 
2.935 
2. 902 
2.870 
2.836 
2.803 
2.770 
2.737 
2.704 
2.671 
2.638 
2.604 
2. 571 
2.538 
2. .504 
2.471 
2.438 
2.404 
2.371 
2.338 
2. 304 
2.270 
2.237 
2.204 
2.170 
2.136 
2.103 
2.070 
2.036 
Inches. 
4. 529 
4.488 
4.447 
4.407 
4.366 
4.325 
4.285 
4.244 
4.203 
4. 162 
4. 121 
4.081 
4.040 
3.999 
3.957 
3.916 
3.875 
3.834 
3.793 
3.752 
3.711 
3.669 
3.628 
3. 587 
3.546 
3.504 
3.463 
3.421 
3.380 
3.339 
3.297 
3.256 
3.214 
3.172 
3.131 
3.089 
3.047 
3.005 
2.964 
2.922 
2.880 
2.838 
2.797 
2.755 
2.713 
2.671 
2.629 
2.587 
2.545 
Inches. 
5.434 
5.386 
5.336 
5. 288 
5. 239 
5. 190 
5.141 
5.092 
5.044 
4.994 
4. 945 
4.897 
4.847 
4.798 
4.748 
4.699 
4.650 
4.601 
4.552 
4.502 
4.453 
4.403 
4.354 
4.304 
4. 255 
4. 205 
4.155 
4.105 
4. 056 
4.006 
3.956 
3.907 
3. 856 
3.806 
3.767 
3.706 
3.656 
3.606 
3.556 
3.506 
3.456 
3.406 
3.356 
3.305 
3. 255 
3. 205 
3. 155 
3.104 
3.054 
Longi- 
tude 
inter- 
val. 
72° 
73° 
5.858 
1L716 
17.573 
23. 431 
29. 289 
5 
10 
15 
20 
25 
30 
Inches. 
0.001 
.003 
.006 
.010 
.016 
.023 
Inches. 
0.001 
.002 
.005 
.010 
.015 
.021 
5.858 
11.717 
17. 575 
23.434 
29. 292 
5.859 
11.718 
17. 577 
23. 436 
29. 295 
74° 
75° 
5 
10 
15 
20 
25 
30 
0.001 
.002 
.006 
.009 
.014 
.020 
0.001 
.002 
.005 
.009 
.013 
.019 
5.860 
11.719 
17. 578 
23. 438 
29. 298 
5.860 
11. 720 
17. 580 
23.440 
29. 300 
76° 
77° 
5 
10 
15 
20 
25 
30 
0.001 
.002 
.005 
.008 
.013 
.018 
0.000 
.002 
.004 
.007 
. 012 
.017 
5. 860 
11.721 
17. 582 
23.442 
29.302 
5.861 
11. 722 
17.583 
23. 444 
29. 304 
78° 
79° 
5 
10 
15 
20 
25 
30 
0.000 
.002 
.004 
.007 
.011 
.016 
0.000 
.002 
.004 
.006 
.010 
.014 
5.861 
11. 723 
17. 584 
23. 445 
29. 306 
