﻿and 
  the 
  Constitution 
  of 
  the 
  Atom. 
  315 
  

  

  Corrected 
  for 
  variation 
  of 
  mass 
  with 
  velocity, 
  we 
  get 
  : 
  

  

  ir 
  lAu^-^-k^-^-m^- 
  1 
  ^ 
  < 
  2a6 
  > 
  

  

  where 
  

  

  a' 
  = 
  lO 
  + 
  S 
  8 
  = 
  12-805, 
  

  

  V 
  = 
  10 
  + 
  S 
  7 
  = 
  12-305. 
  

  

  The 
  agreement 
  between 
  observed 
  and 
  calculated 
  values 
  

   will 
  be 
  seen 
  from 
  Table 
  VI. 
  

  

  Table 
  VI. 
  

  

  N. 
  

  

  v/B, 
  

  

  obs. 
  

  

  v/R 
  

  

  calc. 
  

  

  70 
  

   74 
  

   78 
  

   82 
  

   92 
  

  

  482 
  

   545 
  

   608 
  

   676 
  

  

  855 
  

  

  411 
  

   475 
  

   544 
  

   618 
  

   826 
  

  

  The 
  calculated 
  frequencies 
  are 
  too 
  small, 
  especially 
  for 
  

   low 
  atomic 
  numbers, 
  but, 
  as 
  already 
  mentioned, 
  we 
  cannot 
  

   claim 
  any 
  great 
  accuracy. 
  

  

  This 
  Z-ring 
  should 
  probably 
  be 
  responsible 
  for 
  the 
  doublets 
  

   («,) 
  and 
  (£>). 
  

  

  We 
  should 
  also 
  expect 
  the 
  l-ring 
  to 
  give 
  absorption 
  bands. 
  

   An 
  idea 
  which 
  might 
  naturally 
  suggest 
  itself, 
  is 
  that 
  the 
  

   absorption 
  bands 
  A 
  2 
  and 
  A 
  x 
  are 
  due 
  to 
  the 
  two 
  rings 
  re- 
  

   spectively. 
  Such 
  a 
  coordination 
  is 
  not 
  impossible, 
  but 
  

   still 
  the 
  assumption 
  that 
  A 
  l 
  and 
  A 
  2 
  are 
  due 
  to 
  different 
  

   states 
  of 
  the 
  same 
  ring 
  seems, 
  for 
  the 
  reasons 
  previously 
  

   mentioned, 
  to 
  be 
  the 
  more 
  probable. 
  As 
  the 
  Z-lines 
  are 
  

   very 
  weak, 
  also 
  the 
  absorption 
  ought 
  to 
  be 
  weak 
  and 
  thus 
  

   may 
  have 
  escaped 
  detection. 
  

  

  The 
  M-Series. 
  

  

  We 
  have 
  seen 
  that 
  the 
  typical 
  features 
  oE 
  the 
  L-radiation 
  

   can 
  be 
  explained 
  by 
  the 
  assumption 
  of 
  two 
  rings 
  with 
  

   7 
  and 
  8 
  electrons 
  both 
  with 
  a 
  quant 
  number 
  n 
  = 
  2. 
  We 
  

   might 
  naturally 
  try 
  to 
  explain 
  the 
  M-radiation 
  by 
  means 
  of 
  

   an 
  M-ring 
  with 
  quant 
  number 
  3. 
  

  

  