﻿Vaponr-P 
  'ress 
  tires 
  of 
  Carbon 
  Dioxide. 
  

  

  157 
  

  

  

  

  i 
  

  

  Ml 
  

  

  / 
  

  

  1 
  

  

  

  

  / 
  

  

  

  ^ 
  rff 
  

  

  / 
  

  

  

  

  V 
  / 
  

  

  

  : 
  

  

  

  V 
  

  

  

  

  

  

  

  TEMPERArU/?£ 
  

  

  '~70 
  

  

  -65° 
  

  

  -OCT 
  

  

  -55< 
  

  

  •50"C 
  

  

  