﻿600 
  Prof. 
  Pollock 
  and 
  Mr. 
  Vonwiller 
  : 
  Experiments 
  

  

  Table 
  IV. 
  

  

  

  Glass 
  between 
  

  

  plates. 
  

   a= 
  1-837 
  cm. 
  

   Defls., 
  cms. 
  

  

  Air 
  between 
  

  

  plates. 
  

   a 
  =0-498 
  cm. 
  

   Defls., 
  cm. 
  

  

  Air 
  between 
  j 
  

  

  plates. 
  

  

  a=0*584 
  cm. 
  

  

  Defls., 
  cms. 
  

  

  Dec. 
  19th, 
  

   1901. 
  

  

  16-6 
  

   14-9 
  

  

  13-5 
  

   14-7 
  

  

  15-5 
  

   15-7 
  

  

  

  15-8 
  

  

  131 
  

  

  16-8 
  

  

  

  15-7 
  

  

  

  16-4 
  

  

  

  163 
  

  

  

  15-0 
  

  

  

  15*5 
  

  

  

  

  Mean 
  

  

  15-80 
  

  

  13-77 
  

  

  15-88 
  

  

  a 
  =0*581 
  cm. 
  

   a=l'837 
  cms. 
  

  

  svith 
  air 
  gives 
  the 
  same 
  deflexion 
  as 
  

  

  with 
  glass 
  between 
  the 
  plates. 
  Temp. 
  25*0 
  C. 
  

  

  Table 
  V, 
  

  

  

  Glass 
  between 
  

  

  plates. 
  

   a 
  =1-837 
  cm. 
  

   Defls., 
  cms. 
  

  

  Air 
  between 
  

  

  plates. 
  

  

  a 
  = 
  0*572 
  cm. 
  

  

  Defls., 
  cms. 
  

  

  Air 
  between 
  

  

  plates 
  

  

  a 
  = 
  0*585 
  cm. 
  

  

  Defls., 
  cms. 
  

  

  Air 
  betw 
  een 
  

  

  plates. 
  

  

  a=0-592cm. 
  

  

  Defls., 
  cm. 
  

  

  Dec. 
  19th, 
  

  

  147 
  

  

  

  

  

  1901. 
  

  

  139 
  

  

  131 
  

  

  15*0 
  

  

  14-4 
  

  

  

  14-2 
  

  

  15-1 
  

  

  15-2 
  

  

  15-5 
  

  

  

  13-5 
  

  

  15-1 
  

  

  14-5 
  

  

  14-5 
  

  

  

  133 
  

  

  13-5 
  

  

  136 
  

  

  

  

  14-5 
  

  

  133 
  

  

  143 
  

  

  

  

  137 
  

  

  14-3 
  

  

  

  

  

  14-6 
  

  

  

  

  

  Mean 
  

  

  .. 
  14-05 
  

  

  14-07 
  1452 
  

  

  14-80 
  

  

  a=0*572 
  c 
  

   a= 
  1-837 
  c 
  

  

  m. 
  with 
  air 
  giv 
  

   ms. 
  with 
  glass 
  

  

  es 
  the 
  same 
  deflexion 
  as 
  

   between 
  the 
  plates. 
  Temp. 
  

  

  25° 
  0. 
  

  

  