﻿834 
  

  

  Prof. 
  R. 
  W. 
  Wood 
  on 
  Resonance 
  

  

  in 
  the 
  proportion 
  0, 
  1, 
  2, 
  3, 
  &c. 
  The 
  width 
  of 
  the 
  first 
  

   group, 
  made 
  up 
  of 
  the 
  superposed 
  R.R. 
  lines, 
  would 
  be 
  equal 
  

   to 
  the 
  width 
  of 
  the 
  group 
  of 
  absorption 
  lines, 
  and 
  would 
  be 
  

  

  K*. 
  2. 
  

  

  

  

  o 
  

  

  "a 
  2 
  

  

  

  

  

  - 
  

  

  - 
  

  

  

  - 
  

  

  

  

  - 
  

  

  

  2? 
  

  

  •c 
  

  

  s_ 
  * 
  _j 
  

  

  

  

  

  

  

  <o 
  

  

  .*««, 
  

  

  

  10 
  

  

  3 
  

  

  

  

  •M 
  

  

  s 
  g 
  

  

  

  2 
  "SpT* 
  

  

  

  — 
  > 
  O 
  

  

  1 
  

  

  i2 
  

   1 
  

  

  

  I 
  

  

  

  42 
  

  

  42 
  

  

  5 
  

  

  

  SL-* 
  

  

  »- 
  12 
  

  

  v£> 
  

  

  

  o 
  

  

  

  

  

  <JD 
  

  

  

  o 
  

  

  

  _ 
  

  

  

  

  c§'° 
  

  

  ^ 
  

  

  u? 
  

  

  a> 
  

  

  o 
  

  

  

  

  

  «d- 
  

  

  

  o 
  

  

  

  o 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  o 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  sensibly 
  zero 
  with 
  the 
  dispersive 
  power 
  employed. 
  The 
  

   circumstance 
  that 
  the 
  characteristic 
  group 
  appears 
  around 
  

   the 
  exciting 
  line, 
  and 
  that 
  the 
  widths 
  of 
  the 
  groups 
  are 
  

  

  

  