﻿WHICH 
  IS 
  CONDENSED 
  ON 
  A 
  COLD 
  SURFACE. 
  305 
  

  

  Remarks 
  on 
  Table 
  I. 
  

  

  The 
  experiments, 
  the 
  results 
  of 
  which 
  are 
  contained 
  in 
  this 
  table, 
  were 
  all 
  

   consecutive. 
  No 
  experiment 
  was 
  rejected 
  after 
  what 
  appeared 
  to 
  be 
  a 
  satisfac- 
  

   tory 
  mode 
  of 
  experimenting- 
  had 
  once 
  been 
  adopted. 
  

  

  The 
  indications 
  of 
  the 
  barometer 
  in 
  the 
  fourth 
  column 
  are 
  reduced 
  to 
  32° 
  Fahr. 
  

  

  The 
  indications 
  of 
  the 
  dry 
  and 
  wet 
  bulb 
  thermometers 
  recorded 
  in 
  the 
  fifth 
  

   and 
  sixth 
  columns, 
  are 
  the 
  means 
  of 
  observations 
  made 
  during 
  the 
  intervals 
  of 
  

   the 
  experiments. 
  As 
  the 
  moist-bulb 
  thermometer 
  was 
  observed 
  in 
  calm 
  air, 
  it 
  

   was 
  necessary 
  to 
  apply 
  to 
  its 
  indication 
  a 
  subtractive 
  correction, 
  the 
  amount 
  of 
  

   which 
  was 
  determined 
  by 
  ascertaining, 
  at 
  the 
  end 
  of 
  each 
  day's 
  experiments, 
  how 
  

   much 
  the 
  moist-bulb 
  was 
  cooled 
  by 
  fanning 
  it 
  for 
  a 
  short 
  time. 
  

  

  The 
  tenth 
  column 
  exhibits 
  the 
  weight 
  of 
  the 
  condensing 
  vessel 
  with 
  its 
  lid. 
  

   It 
  was 
  found 
  that 
  the 
  friction 
  used 
  in 
  drying 
  the 
  vessel 
  reduced 
  its 
  weight 
  by 
  

   about 
  -01 
  of 
  a 
  grain 
  at 
  each 
  experiment. 
  In 
  order 
  to 
  make 
  the 
  suitable 
  correc- 
  

   tion 
  on 
  this 
  account, 
  the 
  vessel 
  was 
  weighed 
  at 
  the 
  beginning 
  and 
  end 
  of 
  each 
  

   day's 
  experiments, 
  and 
  the 
  loss 
  of 
  weight 
  was 
  equally 
  distributed 
  over 
  the 
  inter- 
  

   vening 
  experiments. 
  The 
  numbers 
  marked 
  with 
  a 
  cross 
  thus 
  f, 
  express 
  the 
  

   weights 
  which 
  were 
  actually 
  determined. 
  

  

  