564 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 51 



Example i. Given h = 3000 meters; p h = 5io mm mercury 



T hl = 243° T h2 - 248° 



These data and the quantities computed from them for the initial 

 and final stages are arranged in the following tabular form: 



Initial stage 



h = 3000 meters 



T ht = 243° Ph = 5io mm T h2 = 248° 



T 0l = 272.8027 p 0l = 759-i98o I £02 = 753.4621 T 02 = 277.8027 



- - C v 1 



(p + I) = _p . B . p h X 162 . 7598 + Constant 



g 1 + K 



Final stage 



r 7\ 3 = 248° 1 



p h = 510 mm < } h' = 1603.2 meters. 



™ I r; 2 - 263.9266 J ' 



^. = 631.7310 



r 7a = 258.6055 -» 

 p = 756.3300 {■ ) h' = 1398.9 meters. 



I r = 272.5026 J ' 



- - C P 1 



(P + I) = -H . — .B.p h X 162 .7127 + Constant 

 g 1 + K 



1.41 0.0471 

 * " p 1 .82 . 4830 



V = 12.2 meters per second. 



Example 2 h = 3000 m £ A = 510 mm 



r M = 243° T A2 = 253° whence F = 17.3 ml sec. 



Example 3 A = 6000 m p h = 325 mm 



T hl = 213° r to = 218° whence V = 18.3 m/sec. 



Example 4 fc = 6000 m p h = 325 mm 



r Al = 213° T h2 = 223° whence V = 25. 8 m/sec. 



