﻿218 
  

  

  Dr. 
  S. 
  R. 
  Milner 
  on 
  the 
  Effect 
  of 
  

  

  result 
  is 
  shown 
  in 
  Curve 
  II. 
  along 
  with 
  the 
  experimental 
  

   variation 
  of 
  t/t 
  (Curve 
  III.). 
  The 
  difference 
  between 
  the 
  

   curves 
  is 
  several 
  times 
  as 
  great 
  as 
  the 
  amount 
  (j3i) 
  by 
  which 
  

   the 
  experimental 
  curve 
  differs 
  from 
  the 
  theoretical 
  value 
  2. 
  

  

  Fiff. 
  1 
  

  

  120 
  

  

  This 
  type 
  of 
  difficulty 
  is 
  inherent 
  in 
  any 
  theory 
  in 
  which 
  

   /3 
  2 
  is 
  identified 
  with 
  /3, 
  i. 
  e., 
  in 
  which 
  the 
  reduction 
  in 
  the 
  

   conductivity 
  with 
  increasing 
  concentration 
  is 
  ascribed 
  solely 
  

   to 
  a 
  reduction 
  in 
  the 
  number 
  of 
  the 
  free 
  ions, 
  their 
  mobilities 
  

   remaining 
  unchanged. 
  We 
  may 
  say 
  in 
  general 
  that 
  with 
  a 
  

   suitable 
  assumption 
  as 
  to 
  the 
  osmotic 
  pressure 
  of 
  the 
  ions 
  it 
  

   is 
  always 
  possible 
  to 
  derive 
  a 
  mass-action 
  law 
  which 
  will 
  

   express 
  the 
  experimental 
  results 
  either 
  for 
  fix 
  or 
  for 
  j3 
  a 
  

   whatever 
  they 
  may 
  be, 
  but 
  only 
  at 
  the 
  cost 
  of 
  entailing 
  a 
  

   theoretical 
  difference 
  between 
  these 
  two 
  quantities 
  which 
  

   does 
  not 
  actually 
  exist. 
  The 
  view 
  that 
  the 
  electrical 
  forces 
  

   between 
  the 
  ions 
  affect 
  their 
  mobilities 
  (to 
  a 
  sufficient 
  

   extent 
  to 
  account 
  for 
  the 
  greater 
  part 
  of 
  the 
  variation 
  of 
  X 
  

   in 
  strong 
  electrolytes) 
  will 
  of 
  course 
  dispose 
  of 
  this 
  diffi- 
  

   culty, 
  and 
  so 
  far 
  as 
  I 
  can 
  see 
  it 
  is 
  the 
  only 
  view 
  that 
  will 
  

   do 
  so. 
  

  

  