Side
af
764
Forrige
Næste
13
OF ENGINEERING FORMULÆ,
Table of Feet cobresponding to Different
Readings of the Barometer.
Sea level assumed at 30 in. T + t — 64'.
Read- ing of Bar. •0 •1 •2 •3 •4 •6 •6 ■’ •8 j •9
29 886 796 706 617 528 439 351 263 175i 87
28 1802 1709 1616 1524 1432 1340 1248 1157 1066 976
27 2753 2656 2560 2464 2368 2273 2178 2084 1990 1896
26 3739 3638 3539 3439 3340 3241 3143 3045 2947 2850
25 4763 4659 4554 4452 4349 4246 4144 4042 394 0i 3839
24 5830 5721 5613 5505 5398 5291 5185 5079 4973! 4868
23 6942 6829 6716 6603 6491 6380 6269 6158 60481 5939
22 8103 7985 7867 7749 7632 7516 7400 7285 7170 7056
21 9319 9195 9071 8948 8826 8704 8583 8462 8342| 8222
20 10593 10463 10333 10204 10076 994« 9821 9695 9569 9443
19 11933 11796 11660 11524 11389 11254 11121 10988 10856 10724
18 13346 13201 13057 12914 12771 12630 12489 12349 1 2210 12071
17 14839 14686 14533 14382 14231 14082 13933113785 13638 13491
16 16423 16260 16098 15937 15778 15619 15461 15304 15148 14993
15 18109 17935 17763 17592 17421 17252 17084 16917 16751 16587
14 19911 19725 19541 19357 19175 18995 18815'18637 18460 182H4
13 21847 21647 21449 21251 » 21056 20862 20669 20477 20287 20099
Deduct the tabular number due to the reading nt the upper
station from that of the lower station, and multiply the differ-
ence by K, see Table, the result will be the difference of the
height of the two stations in feet.
Barometer.
Correction for Capillarity (to be added).
Diameter of tube)
(his.) ...........)
Correction, unboiled
(ins.;............J
Correction, boiled I
(ins.)..............j
•04 -0Ö9 -087
•02 ‘ 029 044