﻿342 
  Mr. 
  C. 
  Kinsley 
  on 
  the 
  Determination 
  of 
  

  

  A 
  slight 
  difference 
  might 
  be 
  caused 
  by 
  the 
  change 
  in 
  

   period 
  which 
  is 
  continually 
  occurring 
  under 
  usual 
  conditions. 
  

   If 
  now 
  No. 
  1 
  should 
  be 
  read 
  again 
  it 
  might 
  give 
  

  

  (3) 
  Z=21-72, 
  c=2-02, 
  p 
  = 
  23'74, 
  ?? 
  6 
  = 
  359'4. 
  

  

  Then 
  the 
  fundamental 
  would 
  be 
  n 
  = 
  59*9. 
  

  

  Table 
  I. 
  

   Correction 
  to 
  be 
  added 
  to 
  observed 
  length. 
  

  

  

  

  

  Diameter 
  of 
  tubes 
  in 
  cm. 
  

  

  

  

  Observed 
  

   length. 
  

  

  

  

  

  

  

  

  1. 
  

  

  2. 
  

  

  3. 
  

  

  4. 
  

  

  5. 
  

  

  6. 
  

  

  7. 
  

  

  6 
  

  

  •46 
  

  

  •84 
  

  

  1-24 
  

  

  1 
  64 
  

  

  2-04 
  

  

  245 
  

  

  2 
  86 
  

  

  7 
  

  

  •48 
  

  

  •85 
  

  

  i> 
  

  

  >» 
  

  

  ii 
  

  

  ii 
  

  

  2-85 
  

  

  8 
  

  

  •50 
  

  

  •85 
  

  

  11 
  

  

  ii 
  

  

  >i 
  

  

  ii 
  

  

  H 
  

  

  9 
  

  

  •52 
  

  

  •86 
  

  

  II 
  

  

  i> 
  

  

  ii 
  

  

  244 
  

  

  ii 
  

  

  10 
  

  

  •54 
  

  

  86 
  

  

  11 
  

  

  >i 
  

  

  M 
  

  

  ii 
  

  

  2-84 
  

  

  11 
  

  

  •56 
  

  

  •87 
  

  

  1-25 
  

  

  t> 
  

  

  ii 
  

  

  H 
  

  

  ii 
  

  

  12 
  

  

  •58 
  

  

  •87 
  

  

  >> 
  

  

  >■ 
  

  

  it 
  

  

  ii 
  

  

  ii 
  

  

  13 
  

  

  •60 
  

  

  •88 
  

  

  >> 
  

  

  >i 
  

  

  2-03 
  

  

  2-43 
  

  

  2-83 
  

  

  14 
  

  

  •62 
  

  

  •89 
  

  

  >> 
  

  

  »i 
  

  

  ii 
  

  

  ii 
  

  

  u 
  

  

  15 
  

  

  •64 
  

  

  •89 
  

  

  1-26 
  

  

  !> 
  

  

  ii 
  

  

  •i 
  

  

  ii 
  

  

  16 
  

  

  •66 
  

  

  •90 
  

  

  >> 
  

  

  >l 
  

  

  ii 
  

  

  n 
  

  

  2-82 
  

  

  17 
  

  

  •68 
  

  

  •91 
  

  

  ii 
  

  

  ll 
  

  

  n 
  

  

  2-42 
  

  

  ii 
  

  

  18 
  

  

  •71 
  

  

  •92 
  

  

  >> 
  

  

  11 
  

  

  202 
  

  

  H 
  

  

  ii 
  

  

  19 
  

  

  •73 
  

  

  •93 
  

  

  1-27 
  

  

  »» 
  

  

  u 
  

  

  ■1 
  

  

  2-81 
  

  

  20 
  

  

  •75 
  

  

  •94 
  

  

  »» 
  

  

  II 
  

  

  n 
  

  

  ii 
  

  

  ii 
  

  

  21 
  

  

  •78 
  

  

  •94 
  

  

  m 
  

  

  II 
  

  

  ii 
  

  

  2-41 
  

  

  M 
  

  

  22 
  

  

  •81 
  

  

  •95 
  

  

  •J 
  

  

  ., 
  

  

  1 
  1 
  

  

  ii 
  

  

  2-80 
  

  

  23 
  

  

  •84 
  

  

  •96 
  

  

  1-28 
  

  

  11 
  

  

  201 
  . 
  

  

  ii 
  

  

  ii 
  

  

  24 
  

  

  •87 
  

  

  •97 
  

  

  i> 
  

  

  11 
  

  

  ii 
  

  

  n 
  

  

  ii 
  

  

  25 
  

  

  •90 
  

  

  •98 
  

  

  ii 
  

  

  II 
  

  

  ti 
  

  

  2-40 
  

  

  2-79 
  

  

  26 
  

  

  •93 
  

  

  •99 
  

  

  1-29 
  

  

  >» 
  

  

  ii 
  

  

  ii 
  

  

  n 
  

  

  27 
  

  

  •96 
  

  

  100 
  

  

  j» 
  

  

  It 
  

  

  ■I 
  

  

  ii 
  

  

  ii 
  

  

  28 
  

  

  •99 
  

  

  101 
  

  

  u 
  

  

  II 
  

  

  2-00 
  

  

  ii 
  

  

  2-78 
  

  

  29 
  

  

  1-02 
  

  

  102 
  

  

  1-30 
  

  

  )> 
  

  

  ii 
  

  

  239 
  

  

  ii 
  

  

  30 
  

  

  105 
  

  

  103 
  

  

  » 
  

  

  l> 
  

  

  ii 
  

  

  ii 
  

  

  ii 
  

  

  31 
  

  

  108 
  

  

  104 
  

  

  ii 
  

  

  )» 
  

  

  ii 
  

  

  ii 
  

  

  2-77 
  

  

  32 
  

  

  111 
  

  

  105 
  

  

  1-31 
  

  

  l» 
  

  

  1-99 
  

  

  238 
  

  

  ii 
  

  

  33 
  

  

  115 
  

  

  1-06 
  

  

  it 
  

  

  " 
  

  

  »i 
  

  

  H 
  

  

  276 
  

  

  34 
  

  

  1-18 
  

  

  107 
  

  

  132 
  

  

  ii 
  

  

  ii 
  

  

  ii 
  

  

  35 
  

  

  1-21 
  

  

  1-08 
  

  

  „ 
  ! 
  „ 
  

  

  H 
  

  

  237 
  

  

  »f 
  

  

  