Table 20. 

 CO-ORDINATES FOR PROJECTION OF MAPS. SCALE i^T^jrffo- 



[Derivation of ublc explained on pp. liii-lvi.] 



72°oo' 



lO 

 20 



30 

 40 



50 



7300 

 10 

 20 



30 

 40 



50 



7400 

 10 



20 



30 

 40 



50 



7500 

 10 



20 



30 



40 



SO 



76 00 

 10 



20 



30 

 40 



50 



7700 

 10 

 20 



30 

 40 



50 



78 00 

 10 

 20 



30 

 40 



50 



79 00 

 10 



20 



30 

 40 



50 



80 00 



.2 <n-aii 

 .•3 S c-rt 



w c 4> Ir 

 ** rt > S 

 «5 



Inches. 



5.S5S 

 II. 716 



17-573 

 23-431 

 29.289 



5.S5S 

 11.717 



17-575 

 23434 

 29.292 



5.859 

 11.718 

 17-577 

 23436 

 29.295 



5.860 



11.719 



17.57B 



23-43'"^ 

 29.298 



5.860 

 11.720 

 17.580 

 23.440 

 29.300 



5.860 

 11.721 

 17.582 

 23-442 

 29.302 



5.861 

 11.722 



17-5S3 

 444 



-j- 



29.304 



5.861 

 11.723 

 17-584 



23-445 

 29.306 



ABSCISSAS OF DEVELOPED PARALLEL. 



5' 



longitude. 



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 



10' 



longitude. 



Inches. 



811 



795 

 779 

 763 

 746 

 730 



714 

 697 

 681 

 665 

 648 

 632 



616 



599 

 583 

 566 



550 

 534 



517 

 501 



484 

 468 



451 

 435 



418 

 402 



385 

 368 



352 



335 



319 

 302 



269 

 252 



235 



219 



202 

 185 

 169 

 152 

 135 



119 



102 



0S5 

 068 



052 



035 



1.018 



15' 



longitude. 



Inches. 



2.717 

 2.693 



2.66^ 

 2.644 

 2.620 



2-595 



2.571 

 2.546 



2. C22 



2.497 



2-473 

 2.448 



2.424 



2-399 

 2-374 

 2.350 



2-325 

 2.300 



2.276 

 2.251 

 2.226 

 2.20X 

 2.177 

 2.152 



2.127 

 2.102 

 2.078 

 2.053 

 2.028 

 2.003 



1.978 



1-953 

 X.928 

 1.903 

 1.878 



1-853 



1.828 



1.803 



1.778 



1-753 

 1.728 



1-703 



1.678 



1-653 

 1.628 



1.602 



1-577 



1^552 



1-527 



20' 

 longitude. 



Inches. 



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 

 370 



2.07 



2.036 



longitude. 



Inches. 



4.285 

 4.244 

 4.203 

 4.162 

 4.I2I 

 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.Q "''Z 



2.SS0 

 2.838 



2.797 



2-755 

 2-713 

 2.671 

 2.629 

 2.587 



2-545 



longitude. 



Inches. 



5-434 

 5-386 



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 



3-757 

 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 



ORDINATES OF 

 DEVELOPED 

 PARALLEL. 



'II 



o c 



5 

 10 



15 



20 



25 

 30 



5 

 10 



15 



20 



25 

 30 



5 

 10 



15 

 20 



25 

 30 



5 

 10 



15 

 20 



25 

 30 



72" 



Inches. 



0.00 1 

 .003 

 .006 

 .010 

 .016 

 .023 



74" 



0.00 1 

 .002 

 .005 

 .009 

 .014 

 .020 



76° 



0.00 1 

 .002 

 .005 

 .ooS 



.013 

 .018 



78° 



0.000 

 .002 

 .004 

 .007 

 .011 

 .016 



73° 



Inches. 



0.00 1 

 .002 

 .005 

 .010 

 .015 

 .021 



75° 



0.00 1 

 .002 

 -005 

 .009 

 .013 

 .019 



77^ 



0.000 

 .002 

 .004 

 .007 

 .012 

 .017 



79° 



0.000 

 .002 

 .004 

 .006 

 .010 

 .0x4 



Smithsonian Tables. 



lOI 



