﻿Pro-perties 
  of 
  Neioly 
  Prepared 
  Gases. 
  

  

  135 
  

  

  gas 
  evenly 
  across 
  the 
  section. 
  The 
  whole 
  apparatus 
  was 
  con- 
  

   tained 
  inside 
  a 
  screen, 
  the 
  ends 
  A 
  and 
  B 
  of 
  the 
  tubes 
  leading 
  

  

  to 
  the 
  cylinder 
  projecting 
  

  

  Fig. 
  4. 
  outside 
  the 
  screen 
  ; 
  by 
  

  

  D 
  A 
  this 
  means 
  the 
  charged 
  

  

  gas 
  could 
  be 
  blown 
  out 
  

   of 
  the 
  cylinder 
  without 
  

   stirring 
  any 
  apparatus 
  or 
  

   tubes 
  inside 
  the 
  screen 
  ; 
  

   so 
  that 
  the 
  deflexion 
  on 
  

   the 
  electrometer 
  scale, 
  

   when 
  C 
  is 
  connected 
  to 
  

   the 
  insulated 
  quadrants, 
  

   was 
  solely 
  due 
  to 
  the 
  re- 
  

   moval 
  of 
  the 
  charge 
  inside 
  

   0. 
  Any 
  effect 
  of 
  gravity, 
  

   on 
  the 
  motion 
  of 
  the 
  

   carriers 
  towards 
  the 
  sides 
  

   of 
  the 
  tube, 
  was 
  pre- 
  

   vented 
  by 
  placing 
  it 
  in 
  a 
  

   vertical 
  position. 
  

  

  11. 
  The 
  gases 
  that 
  were 
  

   examined 
  were 
  the 
  oxy- 
  

   gen 
  and 
  hydrogen 
  given 
  

   off 
  by 
  electrolysis 
  of 
  di- 
  

   lute 
  sulphuric 
  acid. 
  The 
  

   cell 
  was 
  raised 
  to 
  a 
  tem- 
  

   perature 
  about 
  20° 
  above 
  

   the 
  room, 
  at 
  which 
  it 
  could 
  

   easily 
  be 
  kept 
  by 
  running 
  

   the 
  current. 
  By 
  means 
  

   of 
  an 
  ammeter 
  and 
  varia- 
  

   ble 
  resistance 
  in 
  the 
  cir- 
  

   cuit 
  the 
  current 
  could 
  be 
  

   kept 
  constant. 
  A 
  method 
  

   is 
  thus 
  provided 
  of 
  filling 
  

   the 
  cylinder 
  several 
  times 
  

   with 
  a 
  gas 
  having 
  a 
  con- 
  

   stant 
  electrification 
  per 
  

   c.c. 
  When 
  filling 
  the 
  

   cylinder 
  with 
  the 
  hydro- 
  

   gen 
  it 
  is 
  best 
  to 
  lead 
  the 
  

   gas 
  in 
  at 
  the 
  top, 
  and 
  

   when 
  using 
  oxygen 
  at 
  the 
  

   bottom, 
  in 
  order 
  that 
  the 
  air 
  may 
  be 
  driven 
  out 
  in 
  as 
  short 
  a 
  

   time 
  as 
  possible, 
  as 
  it 
  is 
  not 
  desirable 
  to 
  run 
  the 
  current 
  for 
  

  

  • 
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