Se 
4,70 
4,72 
4,72 
4,73 
4,74 
SUR L'ÉTABLISSEMENT DES ARCHES DE PONT. 
TABLE I. 
2 
VALEURS APPROCHÉES DE —— (Arches incomplètes, dites en arc de cercle.) 
Difr, Difr, Difr. Difr. 
13,3489 14,5151 15,6797 16,8429 
12,2302 13,4032 14,574 15,7435 16,9114 
12,2798 13,4576 14,6333 19,8074 16,9800 
12,3294 13,5121 14,6926 15,8714 17,0488 
12,3792 13,5667 14,7519 _ [15,9355 17,1177 
12,1807 
4,75 
4,76 
4:77 
4,78 
4,79 
4,80 
4,81 
4,82 
4,83 
4,84. 
4,86 
4,87 
4,88 
4,89 
4,90 
4,91 
4,92 
4,93 
4,94 
1,95 
k,96 
4,97 
4,98 
1:99 
5,00 
13,1905 14,4559 
12,4291 13,6214 14,8114 15,9998 17,1868 
12,47091 13,676 14,871a 16,0642| . 17,2560 
12,5293 13,7912 14,9309 16,1288 17,3294 
13,7862 14,9907 16,1935 17,3949 
12,6298 13,8414 19,0507 16,2583 17,4646 
12,6803 35,009 
12,7908 13,9921 
12,5790 
602 651 
19,1711 16,3884 17,6043 
12,7814 14,0076 15,2315 16,4536 176744 
12,8322 14,0632 15,2920 16,5190 .[17,7446 
Q 607 656 
12,8831 14,1190 15,3527 16,5846 17,8150 
"| 607 | — | 656 
12,9340 14,1748 15,4134 16,6502 17,8896 
511 560! _ 609 658 
12,9851| _ 14,2308 15,4743 16,7160 17,963 
512 961 610 659 
13,0363 14,2869| _. 15,5353 16,7819 18,0271 
3,0876 bass Dissecel een ILé 
13,0 14,3431 15, 16,84 18,0980 
7 564 | "9" | 613 79) 662 $ 
13,1390 14,3995 19,6577 16,9141| 18,1691 
aassg] 2 ange] 0 Pisogo| 9 [2508 
15,7191 16,980 18,240 
566 | 7%] 615 | "°° |665 
A 14,5125 15,7806 17,0469| .. | 18,3118 
5 566 616 666 
14,5691 15,8422 171135 18,3833 
568 618 667 
13,3455 14,6259 15,9040 17,1802 18,4550 
220 569 619 669 
13,2420 
13,2937 
13,3979 14,6828| _ 15,9659 17,247 18,5269 
670 |——— 
17,314 18,5989 
621 672 
13,5016 14,7970 16,0900 17,3813 18,6710 
522 572 623 672 
13,5538 14,8542 16,1523 17,4485 18,7433 
524 574 624 674 
13,6062 14,9116 16,2147 17:9159| . 18,8157 
625 676 
13,4495 14,7399 16,0279 
13,6586 14,9691 16,2772 17,835 18,8883 
525 [————| 576 | —— | 626 | —— | 677 | —— 
13,7111 15,0267 à 16,3398 17,6512 Li 18,9610 
805 
13,8067 15,1109 16,3233 17,9344 
717 
719 
720 
721 
723 
724 
726 
727 
