﻿428 
  

  

  Dr. 
  J. 
  Erskine-'Murray 
  on 
  

  

  /o° 
  20° 
  So* 
  4o* 
  6o 
  v 
  co 
  v 
  70 
  v 
  do* 
  

   Temperature 
  , 
  Centigrade. 
  

  

  