﻿the 
  Electromotive 
  Force 
  of 
  Clark 
  Cells 
  with 
  Temperature. 
  297 
  

  

  Fig. 
  7. 
  — 
  Curves 
  comparing 
  the 
  lag 
  in 
  the 
  H-form 
  of 
  cell 
  with 
  

   that 
  in 
  the 
  B.T.-form. 
  

  

  A. 
  An 
  average 
  curve 
  for 
  Board 
  of 
  Trade 
  cell. 
  Eate 
  of 
  change 
  of 
  temperature, 
  1° 
  in 
  15 
  min. 
  

  

  (From 
  paper 
  of 
  Prof. 
  Ayrton 
  and 
  Mr. 
  Cooper.) 
  

  

  B. 
  H-form. 
  1° 
  in 
  15 
  min. 
  

  

  C. 
  H-form. 
  1° 
  in 
  30 
  min. 
  

  

  D. 
  H-form. 
  1° 
  in 
  7 
  min. 
  

  

  Temperature 
  in 
  degrees 
  Centigrade. 
  

   1 
  2 
  3 
  -i 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  AN* 
  

  

  

  

  

  

  

  

  

  

  \b 
  

  

  

  V 
  

  

  

  

  

  

  

  a\ 
  

  

  

  V 
  

  

  Cs. 
  

  

  

  

  

  

  

  

  

  4* 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  d\ 
  

  

  N 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  