GEOGRAPHIC TABLES AND FORMULAS. 
69 
Table 7. — Coordinates for projection of maps {scale ssleo) — Continued. 
[From Smithsonian Geographical Tables.] 
Meridio- 
Abscissas of developed parallel. 
Lati- 
tude of 
nal dis- 
tances 
• from 
Ordinates of developed 
parallel. 
even 
5' longi- 
10' longi- 
15' longi- 
20' longi- 
2.5' longi- 
30' longi- 
parallel 
degree 
tude. 
tude. 
tude. 
tude. 
tude. 
tude. 
parallels. 
o / 
Inches. 
Inches. 
Inches. 
Inches. 
Inches. 
Inches. 
Inches. 
Longi 
70 00 
69. 317 
1.977 
3. 955 
5. 932 
7.910 
9. 888 
11.865 
tude 
70° 
71° 
inter- 
10 
11.554 
1.962 
3.923 
5.885 
7.846 
9.808 
11.770 
val. 
20 
30 
23. 109 
34. 663 
1.946 
1.930 
3.892 
3. 860 
5.837 
5.790 
7.783 
7.720 
9.729 
9.650 
11. 675 
11.579 
40 
46.217 
1.914 
3.828 
5. 742 
7.656 
9.571 
11.485 
' 
Inches. 
Inches. 
50 
57. 772 
1.898 
3. 796 
5. 695 
7.593 
9.491 
11.389 
5 
10 
0.001 
.005 
0.001 
.005 
71 00 
69. 326 
1.882 
3. 765 
5. 647 
7.530 
9,412 
11.294 
15 
20 
25 
.012 
.022 
.034 
.012 
.021 
.032 
10 
11. 556 
1.866 
3.733 
5.600 
7.466 
9.333 
11. 199 
20 
23.111 
1.850 
3.701 
5.552 
7.402 
9.253 
11. 103 
SO 
.049 
.047 
30 
34. 667 
1.835 
3.669 
5.504 
7.338 
9.173 
11.008 
40 
46.222 
1.819 
3.637 
5.456 
7.275 
9.094 
10.912 
50 
72 00 
57. 778 
69. 334 
1.803 
1.787 
3. 605 
3. 574 
5. 408 
5. 360 
7.211 
7.147 
9. 014 
8.934 
10. 816 
10. 721 
72° 
73° 
10 
20 
11.557 
23. 114 
1.771 
1. 7.55 
3.542 
3.509 
5.312 
5. 264 
7.083 
7.019 
8.854 
8.774 
10. 625 
10.528 

30 
34. 670 
1.739 
3.477 
5. 216 
6. 955 
8.694 
10. 432 
5 
0.001 
0.001 
• 40 
46. 227 
1.723 
3.445 
5.168 
6.891 
8.614 
10. 336 
10 
.005 
.005 
50 
57. 784 
1.707 
3.413 
5.120 
6.826 
8. 533 
10. 240 
15 
20 
.011 
.020 
.011 
.019 
73 00 
69. 341 
1.691 
3.381 
5.072 
6. 762 
8.453 
10. 144 
25 
30 
.031 
.044 
.029 
.042 
10 
11.558 
1.674 
3.349 
5. 024 
6.698 
8.373 
10. 047 
20 
23. 116 
1.658 
3. 317 
4.975 
6.634 
8.292 
9.950 
30 
34. 674 
1.642 
3.284 
4.927 
6.569 
8.211 
9.853 
40 
50 
46. 232 
57. 790 
1.626 
1.610 
3.252 
3. 220 
4.878 
4.830 
6.504 
6.440 
8.131 
8.050 
9.757 
9.660 
74° 
75° 
74 00 
10 
69. 348 
1.594 
1.578 
3.188 
3. 155 
4. 782 
4.733 
6.376 
6.311 
7.970 
7.889 
9.563 
9.466 
5 
0.001 
0.001 
11.559 
20 
23.118 
1.562 
3.123 
4.685 
6.246 
7.808 
9.369 
10 
.004 
.004 
30 
34.677 
1.545 
3.091 
4.636 
6. 181 
7.727 
9. 272 
15 
.010 
.009 
40 
46. 236 
1.529 
3.058 
4. 587 
6.116 
7. 645 
9. 175 
20 
.018 
.017 
50 
57. 796 
1.513 
3.026 
4.539 
6.052 
7.565 
9.077 
25 
30 
.028 
.040 
. 026 
.038 
75 00 
10 
69. 355 
1.497 
1.480 
2. 993 
2.961 
4.490 
4.441 
5.987 
5. 922 
7.484 
7.402 
8.980 
8.882 
11.560 
20 
30 
23. 120 
34. 681 
1.464 
1.448 
2.928 
2.896 
4. 392 
4.344 
5. 856 
5.792 
7. 321 
7. 240 
8.785 
8.687 
40 
46. 241 
1.432 
2.863 
4.295 
5.726 
7.158 
8. 590 
76° 
77° 
50 
70 00 
57. 801 
69. 361 
1.415 
1.399 
2.831 
2.798 
4.246 
4.197 
5.661 
5. 596 
7.077 
6. 995 
8.492 
8.394 
5 
0.001 
0.001 
10 
.004 
.004 
10 
11. 561 
1.383 
2.765 
4.148 
5.530 
6.913 
8.296 
15 
.009 
.008 
20 
23. 122 
1.366 
2.733 
4.099 
5. 465 
6. 832 
8.198 
20 
.016 
.015 
30 
34. 683 
1.350 
2.700 
4.050 
5.400 
6.750 
8.099 
25 
.025 
.023 
40 
46. 244 
1.334 
2.667 
4.001 
5.334 
6.668 
8. 002 
30 
.036 
. 033 
50 
57.806 
1.317 
2.634 
3. 952 
5.269 
6.586 
7.903 
77 00 
69.367 
1.301 
2.602 
3. 903 
5.204 
6.505 
7. 805 
