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  — 
  Twist 
  in 
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  and 
  Nickel 
  Bods. 
  

  

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  Fig. 
  4. 
  

  

  2200 
  

  

  150 
  ISO 
  210 
  240 
  270 
  300 
  

  

  The 
  question 
  may 
  be 
  raised 
  as 
  to 
  why 
  these 
  rods 
  were 
  not 
  

   annealed 
  at 
  the 
  start. 
  My 
  purpose 
  has 
  been 
  to 
  carry 
  out 
  a 
  

   series 
  of 
  experiments 
  on 
  the 
  same 
  rods 
  and 
  to 
  study 
  different 
  

  

  