Bulletin de l’Académie Impériale 
pas ARR ue: p = Av"; lg A+ (m — 2)]g v leg = 0. 
(bb1) = xp? — @n1) = Xin — 2 En, 
ux (bni) e. En 
ipee om E ou m 
SE — my = 0,7376y; 1g 4 — 2,0963 x. 
Table Il. 
Obus en fonte ordinaire. 
Ier |] lge' 
v e' lgo lgo' 2,8420 | 2,0963 b? bn |X1| 3 In 2b? Xbn 
—b =n 
695””° | 0,0407 | 2,8420 | — 1,3904 6633 | 1, 6638 | 1| 1, 0,6633 | 1,0000 | 0,6633 
685 | 0,0407 | 2,8357 | — 1,3904 | 0,9978 | 0,6633 | 0,9956 | 0,6618 | 2| 1,9978 | 1,3266 | 1,9956 | 1,3251 
675 | 0,0407 | 2,8293 | — 1,3904 | 0,9956 | 0,6633 | 0,9918 | 0,6603 | 3| 2,9934 | 1,9899 | 2,9874 | 1,9854 
665  |0,0407 | 2,8228 | — 1,3 ‚9933 | 0,6633 | 0,9866 | 0,6588 | 4| 3,9867 | 2,6532 | 3,9740 | 2,6442 
655 0,0407 | 2,8162 | — 1,3904 | 0,9909 | 0,6633 | 0,9819 | 0,6573 | 5| 4,9776 3,3165 4,9559 3.3015 
645 10, 2,8096 | — 1,3904 | 0,9886 | 0,6633 | 0,9773 | 0,6557 | 6| 5,9662 | 3,9798 | 5,9832 | 3,9572 
635 |0; 2,8098 | — 1,3904 | 0,9862 | 0,6633 | 0,9726 | 0,6542 | 7| 6,9524 | 4,6431 | 6,9058 | 4,6114 
625 | 0,0407 | 2,7959 | — 1,3904 | 0,9838 | 0,6633 | 0,9679 | 0,6525 | 8| 7,9362 | 5,3064 | 7,8737 | 5,2639 
615 ‚0407 | 2,7889 | — Lë 9813 | 0,6633 | 0,9630 | 0,6509 | 9| 8,9175 | 5,9697 | 8,8367 | 5,9148 
605 0,0407 | 2,7818 | — 1,3904 | 0,9788 | 0,6633 | 0,9580 | 0,6493 | 10| 9,8963 6,6330 9.7947 6,5641 
595 | 0,0407 | 2,7745 | — 1,3904 | 0,9761 | 0,6633 | 0,9528 | 0,6474 | 11 | 10,8724 | 7,2963 | 10,7475 | 7,2115 
585 ‚04 ‚7672 | — 1,3904 | 0,9737 | 0,6633 | 0,9481 | 0,6458 | 12 | 11,8461 | 7.9596 | 11,6956 | 7,8573 
575 0,0407 2,7597 | — 1,3904 0,9711 | 0,6633 | 0,9430 | 0,6441 |13 | 12,8172 8,6229 12,6386 8,5014 
565 | 0,0407 | 2,7520 | — 1,3904 | 0,9684 | 0,6633 | 0,9378 | 0,6423 | 14 | 13,7856 | 9,2862 | 13,5764 | 9,1437 
555 ,0 2,7443 | — 1,89 0,965 6633 9324 | 0,6405 | 15| 14,7512 9,9495 | 14,5088 9,7842 
545 10,0497 | 2,7364 | — 1,3904 | 0,9629 | 0,6633 | 0,9272 | 0,6387 | 16 | 15,7141 | 10,6128 | 15,4360 | 10,4229 
535 10,0407 | 2,7284 | — 1,3904 | 0, 0,6633 | 0,9216 | 0,6368 | 17 | 16,6741 | 11,2761 | 16,3576 | 11,0597 
525 | 0,0407 | 2,7202 | — 1,3904 | 0,9572 | 0,6633 | 0,9162 | 0,6349 | 18 | 17,6313 | 11,9394 | 17,2738 | 11,6946 
515 0,0407 | 2.7118 | — 3 0,9542 | 0,6633 | 0,9105 | 0,6329 | 19 ,985 2,6027 18,1843 | 12,3275 
505 .0406 | 2,7033 | — 1,3915 | 0,951 0,9 6314 |20 | 19,5367 | 13,2665 | 19,0891 | 12,9589 
495 | 0,0405 | 2,6946 | — 1,3925 | 0,9482 | 0,6643 | 0,8991 | 0,6298 | 21 20,4849 | 18,9308 | 19,9882 | 13,5887 
485 ‚0404 | 2,6857 | — 1,3936 | 0,9450 | 0,6648 | 0,8930 | 0,6282 | 22 | 21,4299 | 14,5956 | 20,8812 | 14,2164 
475 | 0,0403 | 2,6767 | — 1,3947 | 0,9419 | 0,6653 | 0,8872 | 0,6266 |23| 22,3718 | 15,2609 | 21,7684 | 14,8435 
465 | 0,0401 | 2,6675 | — 1,3969 | 0,9386 | 0,6664 | 0,8809 | 0,6255 | 94 | 23,3104 | 15,9273 | 92,6493 | 15,4690 
455 | 0,08 6580 | — 1,3990 | 0,9353 | 0,6674 | 0,8748 | 0,6242 | 25 | 24,2457 | 16,5947 | 23,5241 | 16,0932 
445 | 0,0397 | 2,6484 | — 1,4012 | 0,9319 | 0,6684 | 0,8684 | 0,6229 | 26 | 25,1776 | 17,2631 | 24,8995 | 16,7161 
485 | 0,0394 | 2,6385 | — 1,4045 | 0,9284 | 0,6700 | 0,8619 | 0,6220 |27 | 26,1061 | 17,9331 | 25,2544 | 17,3381 
495 | 0,0391 | 2,6284 | — 1,4078 | 0,9249 | 0,6714 | 0,8554 | 0,6211 | 98 | 27,0809 | 18/6045 | 26,1098 | 17,9592 
415 0,0388 | 2,6180 1,4112 | 0,9212 | 0,6732 0,8486 0,6201 | 29 | 27,9521 | 19,2777 26,9584 18,5793 
405 0,0384 2,6075 u 1,4157 0,9175 0,6753 0,8418 0,6196 30 28,9696 19.9530 27,8002 19, 1989 
395 | 0,0379 | 2,5966 | — 1,4214 | 0,9137 | 0,6781 | 0,8349 | 0,6195 | 31 | 29,7833 | 20,6311 | 28,6351 | 4 
385 | 0,0373 | 2,5855 | — 1,4283 | 0,9098 | 0,6814 | 0,8277 | 0,6199 | 32 | 30,6931 | 21,3125 | 29,4628 | 20,4383 
375 0,0365 | 2,5740 | — 1 4377 0,9057 | 0,6858 | 0,8208 | 0,6212 | 33| 31,5988 | 21 ‚9983 80,2831 | 21,0595 . : 
365 | 0,0356 | 2,5623 | — 1,4486 | 0,9016 | 0,6910 | 0,8129 | 0,623 2,5004 | 22, 10960 | 21,0825... 
855 | 0,034 — 1,4634 | 0,8973 | 0,6981 | 0,8051 | 0,6264 | 35 | 33,3977 | 23, Sg 31,9011 | 22,3089 
345 {0,0323 | 2,5378 | — 14 ‚8930 | 0,7112 | 0,7974 | 0,6351 | 36 | 34,2907 | 24,0986 | 82,6985 | 22,9440 - 
335 |0, 250 | — 1,5331 | 0,8885 | 0,7313 | 0,7894 | 0,6498 | 37 | 35,1792 | 8 j 3,5938 
395 | 0,0251 | 2,5119 | — 1,6003 | 0,8839 | 0,7634 | 0,7813 | 0,6747 |38 | 36,0631 | 25,5933 | 34,2692 | 24,2685 
315 | 0,0209 À 2,4983 | — 1,6799 | 0,8791 | 0,8014 | 0,7728 | 0,7045 | 39 | 36,9422 | 26,3947 | 35,0420 | 24,9730 
305  |-0,0182 | 2,4843 | — 1,7399 | 0,8741 | 0,82 ‚7641 | 0,7255 |40 |-37,8163 | 27,2247 | 85,8061 | 95,6985 
295 | 0,0162 | 2,4698 | — 1,7905 | 0,8690 | 0,8541 | 0,7552 | 0,7423 | 41| 38,6853 | 28,0788 | 36,5613 | 26,4408 
285  |0,0148 | 2,4548 | — 1,8297 | 0,8638 | 0,8728 | 0,7462 | 0,7539 | 42| 39,5491 | 28,9516 | 37.3075 | 27,1947 
-275 | 0,0136 | 2,4393 | — 1,8665 | 0,8583 | 0,8904 | 0,7367 | 0,7642 | 48 | 40,4074 | 29,8420 | 38,0442 | 27,9589 
265 ,01 2,4232 | — 1,8962 | 0,8526 | 0,9046 | 0,7269 | 0,7713 | 44 | 41,2600 ,7466 | 38,7711 | 28,7302 
255 0,0119 | 2,4065 | — 1,9245 | 0,8468 0,9178 0,7171 0,7774 | 45 | 42,1068 | 31,6644 99,4882 | 29,5076 
245 |0,0111 | 2,2892 | — 1,9547 | 0,8407 | 0,9325 | 0,7068 | 0,7839 | 46 | 42,9475 | 32,5969 | 40,1950 | 30,2915 
235 0,0103 | 2,3711 | — 1,9872 | 0,8343 | 0,9480 | 0,6961 | 0,7909 | 47 | 43,7818 | 38,5449 40,8911 | 31 0824 
225 0,0095 3522 | — 2,0223 | 0,8277 | 0,9647 | 0,6851 | 0,7985 | 48 | 44,6095 | 34,5096 41,5762 | 31 8809 
215 | 0,0087 | 2,3324 | — 2,0605 | 0,8207 | 0,9830 | 0,6735 | 0,8067 | 49 | 45,4302 | 35,4926 | 42,2497 | 32,6876 
205 | 0,0080 | 23118 | — 2,0963 | 0,8135 | 1,0000 | 0,6618 | 0,8135 | 50 | 46,2437 | 36,4926 | 42,9115 
33, "5011: 
