﻿316 
  E. 
  M. 
  Wellisch 
  — 
  Distribution 
  of 
  the 
  Active 
  Deposit 
  

  

  librium 
  ionization 
  currents 
  in 
  the 
  gas 
  for 
  two 
  different 
  poten- 
  

   tials 
  was 
  equal 
  to 
  the 
  ratio 
  of 
  the 
  corresponding 
  cathode 
  

   activities. 
  

  

  The 
  main 
  object 
  of 
  the 
  present 
  series 
  of 
  experiments 
  was 
  to 
  

   extend 
  the 
  investigation 
  in 
  various 
  directions 
  ; 
  in 
  particular, 
  it 
  

   was 
  thought 
  desirable 
  to 
  ascertain 
  the 
  effect 
  on 
  the 
  distribution 
  

   of 
  employing 
  a 
  containing 
  vessel 
  of 
  different 
  dimensions 
  and 
  

   of 
  mixing 
  the 
  emanation 
  with 
  gases 
  other 
  than 
  air, 
  arid, 
  in 
  

   addition, 
  to 
  make 
  a 
  detailed 
  investigation 
  of 
  the 
  distribution 
  

  

  Fig. 
  1. 
  

  

  VlM/miiil//{//l 
  

  

  tu/uw/w/i 
  

  

  ttu/M 
  zzzzzzzzzzznr 
  

  

  t 
  

  

  P 
  

  

  VWWWWVWWVA 
  

  

  '-~:3k3#l 
  

  

  when 
  small 
  potentials 
  were 
  employed. 
  The 
  main 
  experimental 
  

   results 
  of 
  the 
  previous 
  research 
  have 
  been 
  confirmed, 
  but 
  the 
  

   fresh 
  results 
  which 
  have 
  been 
  obtained 
  necessitate 
  a 
  modifi- 
  

   cation 
  of 
  the 
  theory 
  which 
  was 
  suggested 
  in 
  explanation 
  of 
  the 
  

   phenomena. 
  

  

  Experimental 
  Procedure. 
  

  

  2. 
  The 
  method 
  employed 
  for 
  ascertaining 
  the 
  distribution 
  

   of 
  the 
  active 
  deposit 
  was 
  the 
  same 
  as 
  that 
  which 
  had 
  previously 
  

   been 
  employed. 
  The 
  radium 
  emanation 
  obtained 
  usually 
  from 
  

  

  