﻿Balance 
  as 
  a 
  Sensitive 
  Barometer. 
  

  

  139 
  

  

  galvanometer 
  readings 
  from 
  which 
  the 
  temperature 
  inside 
  

   the 
  balance 
  is 
  obtained. 
  In 
  the 
  barograph 
  the 
  nearly 
  

  

  Fig. 
  1. 
  

  

  10 
  20 
  

  

  M/ 
  NOTES. 
  

  

  30 
  

  

  straight 
  curve 
  represents 
  the 
  temperature, 
  the 
  lower 
  irregular 
  

   curve 
  the 
  actual 
  observations 
  of 
  the 
  position 
  of 
  the 
  balance- 
  

   beam, 
  and 
  the 
  upper 
  curve 
  the 
  positions 
  reduced 
  to 
  a 
  

   constant 
  temperature. 
  

  

  