﻿Ionization 
  and 
  Wireless 
  Telegraphy 
  . 
  577 
  

  

  Fig-. 
  8, 
  — 
  Variation 
  of 
  Frequency 
  with 
  Ionization. 
  

  

  7 
  bmm. 
  Th/CK 
  NESS 
  of 
  

  

  Aluminium 
  Plates 
  

  

  TftTTt 
  

  

  +4r 
  

  

  +3 
  

  

  <o+2 
  

  

  I 
  

  

  00 
  0-1 
  

  

  4- 
  2 
  

  

  -2 
  

  

  -$7tfm. 
  

  

  \-omm. 
  Thickness 
  of 
  

  

  ALUMINIUM 
  PLATES. 
  

  

  w 
  

  

  Fig. 
  9. 
  — 
  Variation 
  of 
  Frequency 
  with 
  Ionization. 
  

  

  