﻿382 
  Prof. 
  McLennan 
  and 
  Mr. 
  Kennedy 
  on 
  the 
  

  

  Table 
  IV. 
  

  

  Thickness 
  of 
  

  

  salt 
  layer 
  

  

  (mm.). 
  

  

  Activity 
  of 
  salt, 
  

   Saturation 
  current 
  (Arbitrary 
  scale). 
  

  

  Potassium 
  

   Chloride. 
  

  

  Potassium 
  

   Hydroxide. 
  

  

  Potassium 
  

   Cyanide 
  

  

  (Kahlbaum). 
  

  

  •5 
  

   10 
  

   20 
  

   40 
  

  

  82-5 
  

  

  110 
  

   150 
  

   152-5 
  

  

  58 
  

  

  96-3 
  

   1325 
  

   160 
  

  

  65 
  

   100 
  

   160 
  

   167-5 
  

  

  Fisr. 
  4. 
  

  

  3.0 
  TJ2ieKn.es* 
  of 
  layer 
  

  

  IV. 
  Activities 
  of 
  different 
  Potassium 
  and 
  other 
  Salts. 
  

  

  After 
  ascertaining 
  that 
  the 
  activity 
  of 
  a 
  selected 
  salt 
  was 
  

   directly 
  proportional 
  to 
  the 
  area 
  exposed, 
  and 
  that 
  layers 
  

   having 
  a 
  thickness 
  of 
  approximately 
  2*5 
  to 
  3 
  mm. 
  furnished 
  

   a 
  measure 
  of 
  the 
  maximum 
  activity 
  of 
  the 
  salt, 
  a 
  series 
  of 
  

  

  