﻿900 
  

  

  Prof. 
  0. 
  W. 
  Richardson 
  on 
  the 
  Kinetic 
  

  

  z 
  = 
  l'38xl0 
  24z 
  , 
  whilst 
  the 
  experimental 
  points 
  are 
  shown 
  

  

  1*4 
  

  

  1-2 
  

  

  1-0 
  

  

  V6 
  

  

  ttius 
  : 
  O. 
  

  

  Fig. 
  3. 
  

  

  

  

  

  

  

  

  /ti^\ 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  \° 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  f\ 
  

  

  

  

  

  

  

  

  /< 
  

  

  *> 
  

  

  

  

  

  

  

  

  ( 
  ^\ 
  

  

  

  

  

  

  y 
  

  

  / 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  8 
  S 
  10 
  II 
  \Z 
  13 
  

  

  Scale 
  of 
  a: 
  (/-'0635 
  cm) 
  

  

  Comparing 
  / 
  = 
  l*o8x 
  Kr 
  1 
  ' 
  1 
  " 
  with 
  equation 
  (9) 
  we 
  see 
  that 
  

   V 
  ' 
  ne 
  -24 
  

  

  and 
  on 
  substituting 
  the 
  proper 
  values 
  V 
  — 
  10*6 
  x 
  10 
  8 
  E.M. 
  

   units, 
  n«=-407 
  E3.M. 
  anits, 
  £=1500° 
  abs. 
  and 
  z=:-534 
  cm., 
  

   Wfl 
  obtain 
  

  

  R=4°6x 
  10 
  8 
  ergs/cm. 
  

  

  The 
  standard 
  value 
  is 
  3*7 
  x 
  10 
  3 
  , 
  and 
  this 
  is 
  a 
  very 
  satisfactory 
  

   agreement 
  when 
  all 
  the 
  various 
  sources 
  of 
  error 
  are 
  taken 
  

  

  into 
  account. 
  

  

  (l>) 
  Positive 
  Ions. 
  — 
  In 
  the 
  experiments 
  on 
  the 
  positive 
  ions 
  

   a 
  potential-difference 
  of 
  78'3 
  volts 
  was 
  used. 
  A 
  number 
  of 
  

  

  •10 
  -08 
  -06 
  -04 
  -02 
  

   Scale 
  of 
  cc 
  (cms.) 
  

  

  Fig. 
  4. 
  

  

  ' 
  I 
  I 
  I 
  I 
  I 
  pN 
  I 
  \w\ 
  

  

  zzzzrzzzzzzzzz 
  

  

  of 
  — 
  .1 
  l 
  <r 
  . 
  I 
  — 
  I 
  — 
  I 
  I 
  I 
  l 
  ^-UJ 
  <» 
  

  

  ■02 
  -04- 
  -06 
  -08 
  -)0 
  

  

  series 
  of 
  observations 
  were 
  taken, 
  of 
  which 
  that 
  represented 
  

   in 
  fig. 
  4 
  is 
  typical. 
  The 
  experimental 
  points 
  are 
  denoted 
  

  

  