36 
GEOGRAPHIC TABLES AND FORMULAS. 
[BULL. 214. 
Table 4. — For projections of maps of large areas — Continued. 
COORDINATES OF CURVATURE. 
Natural scale.- 
—Values of X and Y meters. 
Latitude 36°. 
Latitude 37°. 
Latitude 38°. 
Longi- 
tude. 
X 
Y 
Longi- 
tude. 
X 
Y 
Longi- 
tude, 
X 
Y 
o / 
o / 
o / 
1 00 
2 00 
3 00 
4 00 
90, 164 
180, 319 
270, 455 
360, 562 
462 
1,850 
4,162 
7,399 
1 00 
2 00 
3 00 
4 00 
89, 012 
178, 015 
266, 997 
355, 951 
467 
1,870 
4,207 
7,479 
1 00 
2 00 
3 00 
4 00 
87,833 
175, 656 
263, 458 
351, 230 
472 
1.888 
4,247 
7,549 
5 00 
6 00 
7 00 
8 00 
9'00 
450, 631 
540, 653 
630, 618 
720, 517 
810, 340 
11,560 
16, 645 
22, 652 
29, 583 
37,435 
5 00 
6 00 
7 00 
8 00 
9 00 
444, 865 
533, 730 
622, 536 
711,273 
799, 932 
11,685 
16, 824 1 
22, 896 
29, 901 
37, 838 
5 00 
6 00 
7 00 
8 00 
9 00 
438, 962 
526, 643 
614,263 
701,812 
789, 280 
11, 795 
16, 983 
23, 112 
30, 183 
38, 195 
10 00 
11 00 
12 00 
13 00 
14 00 
900, 078 
989, 720 
1, 079, 259 
1, 168, 684 
1,257,987 
46,209 
55, 903 
66, 515 
78, 046 
90, 494 
10 00 
11 00 
12 00 
13 00 
14 00 
888, 503 
976, 975 
1,065,340 
1,153,587 
1,241,707 
46, 706 
56, 503 
67, 229 
78, 882 
91,462 
10 00 
11 00 
12 00 
13 00 
14 00 
876, 657 
963,933 
1,051,098 
1,138,141 
1,225,053 
47, 145 
57, 034 
67, 860 
79, 622 
92, 319 
15 00 
16 00 
17 00 
18 00 
19 00 
1, 347, 156 
1, 436, 184 
1,525,061 
1, 613, 777 
1, 702, 324 
103, 856 
118,133 
133, 323 
149, 423 
166, 433 
15 00 
16 00 
17 00 
18 00 
19 00 
1, 329, 690 
1,417.526 
1,505,206 
1, 592, 721 
1,680,059 
104, 967 
119, 395 
134, 745 
151, 015 
168, 203 
15 00 
16 00 
17 00 
18 00 
19 00 
1,311,823 
1,398,441 
1,484,899 
1,571,185 
1,657,289 
105, 949 
120,511 
136,002 
152, 421 
169, 767 
20 00 
21 00 
22 00 
23 00 
24 00 
1, 790, 691 
1, 878, 870 
1, 966, 851 
2, 054, 625 
2, 142, 183 
184, 350 
203, 173 
222, 899 
243, 527 
265, 055 
20 00 
21 00 
22 00 
23 00 
24 00 
1,767,211 
1,854,169 
1, 940, 922 
2,027,462 
2, 113, 777 
186,307 
205, 326 
225, 258 
246, 099 
267, 849 
20 00 
21 00 
22 00 
23 00 
24 00 
1,743,202 
1,828,914 
1,914,415 
1,999,694 
2,084,743 
188, 037 
207,229 
227, 341 
248, 370 
270, 315 
25 00 
26 00 
27 00 
28 00 
29 00 
30 00 
2,229,516 
2,316,613 
2,403,467 
2, 490, 068 
2, 576, 407 
2, 662, 475 
287,479 
310, 798 
335, 009 
360, 111 
386, 099 
412, 971 
25 00 
26 00 
27 00 
28 00 
29 00 
30 00 
2, 199, 860 
2,285,699 
2,371,287 
2, 156, 612 
2,541,667 
2, 626, 441 
290, 503 
314, 061 
338, 519 
363, 874 
390, 125 
417,267 
25 00 
26 00 
27 00 
28 00 
29 00 
30 00 
2,169,551 
2, 254, 109 
2,338,406 
2,422,433 
2, 506, 181 
2, 589, 639 
293, 172 
316, 939 
341, 613 
367, 192 
393, 672 
421,050 
