Pocketbook of Useful Formulæ and Memoranda
for Civil and Mechanical Engineers

677 OF ENGINEEIilNG FOBMULÆ. Length of the Cibculaii Ano—continued, Minutes. Seoori'ls, 0 000 " '000 j • 000 2 3 5 21 22 23 21 6 8 9 10 12 13 14 15 02909 05818 08727 11636 14544: 25 061087 41 119264 063995 42 122173 066904; 43 ‘125032 069813 44 >27991: 0727221 45 .130J00 17153 26 203&2 27 23271 28 26180 29 291B9, 30 31998 31 34907 32 37815 33 40724 34 43633 35 2 3 4 5 0018 OOH 0145 0194 0212 21 22 24 25 1018 1067 1115 1164 1212 41 1988 42 43 44 45 21)36 2085 2133 2182 16 17 18 19 20 46542 49451 52360 55269 58178 Versin. chord. •001 •002 •003 •004 •0)5 •006 •007 •008 ■00» 0756311 46 133809 078540 47 136717 j 081449]48 139626 i 084353 49 142535! 087266 50 145444 0291 1 0339 0388 0436 0185 6 8 9 10 26 27 28 29 at 1261 1309 1357 1406 1454 46 47 48 49 50 2230 2279 2327 2376 2124 36 37 38 39 40 0 030175 51 1148353' ÖJ3084 52 ,151262 095993 53 154171 098902*54 167080 . 101811] 55 >1599891 15 12 13 14 0533 0582 0631) 0679 0727 31 32 33 34 35 1503 1551 1599 1648 1697 51 52 53 54 55 2473 2521 2570 2618 2666 162'597 16 10472050________ __ 107629! 57 16580., 17 110538 58 168715 18 113446'59 171624 . 19 116355160 “* 174533 20 0776 36 0824 37 0&73 38 0921 39 0970 40 1745 1794 1842 1891 1939 56 67 58 69 60 2715 2763 2812 2860 2909 Length of Cntcrr.AH Anes. (E. Donn.) •000 008 011 024 043 OCT 096 131 171 218 •01 •02 •03 000 267 823 384 451 523 600 683 771 864 963 •GO 11 12 13 15 17 18 19 22 •00 24 26 27 29 31 33 35 36 38 •04 •05 •06 •07 •08 09 •00 '00 ‘° •o •0 •0 43 67 096 130 170 215 45 69 099 134 174 219 47 72 102 138 178 224 49 75 106 142 183 229 52 78 109 145 187 234 54 80 112 149 192 239 5« 83 116 153 19.5 244 59 86 119 167 201 249 61 89 123 161 205 254 64 93 126 166 210 259 Approximate Rule fob Length of Abo L, C -- Chord of Arc; e = Chord of j Arc. L-i(8c-C).