﻿178 
  

  

  Holhorn 
  and 
  Day 
  — 
  Gas 
  Thermometer 
  at 
  

  

  the 
  usual 
  drying 
  tubes 
  it 
  was 
  used 
  as 
  before, 
  first 
  for 
  rinsing 
  at 
  

   700° 
  and 
  then 
  for 
  the 
  definite 
  filling. 
  Especial 
  precautions 
  

   were 
  here 
  taken 
  to 
  free 
  the 
  bulb 
  from 
  hydrogen, 
  the 
  evacuated 
  

   bulb 
  standing 
  the 
  entire 
  day 
  at 
  700^, 
  the 
  pump 
  being 
  operated 
  

   at 
  intervals. 
  The 
  drying 
  tubes 
  were 
  also 
  evacuated 
  before 
  the 
  

   nitrogen 
  was 
  admitted. 
  Table 
  lY 
  gives 
  the 
  values 
  obtained 
  

   with 
  the 
  same 
  bulb 
  (No. 
  II) 
  and 
  nitrogen, 
  the 
  heating 
  being 
  

   done 
  as 
  before 
  in 
  the 
  nitre 
  bath. 
  

  

  Table 
  IY. 
  

  

  JBulb 
  (No 
  

  

  . 
  II).— 
  Berlin 
  

  

  porcelain 
  glazed 
  

  

  nside 
  and 
  out. 
  

  

  Gas 
  — 
  Nitrogen. 
  

  

  

  

  Y„ 
  = 
  101-13 
  6<='='". 
  'y, 
  = 
  2-83 
  

  

  7. 
  3/3z=00000132. 
  

  

  

  After 
  filling. 
  

  

  Ho 
  

  

  a 
  

  

  t 
  

  

  Ci 
  

  

  Obs.-Calcul 
  

  

  1st 
  

  

  4( 
  

  

  506-32 
  

  

  0-003677 
  

  

  

  

  

  2d 
  

  

  U 
  

  

  

  

  520-8° 
  

  

  606-3 
  

  

  680-8 
  

  

  5092 
  

   58U 
  

  

  -•0'2 
  

   + 
  0-2 
  

  

  3d 
  

  

  a 
  

  

  507-92 
  

  

  0-003681 
  

  

  

  

  

  4th 
  

  

  u 
  

  

  

  

  490-0 
  

   573-7 
  

  

  702-8 
  

   706-9 
  

  

  S9Jf2 
  

   J^760 
  

   6050 
  

   6088 
  

  

  ■\-0-6 
  

   + 
  0.5 
  

  

  + 
  2-2 
  

   + 
  2-7 
  

  

  6th 
  

  

  (( 
  

  

  508-54 
  

  

  0-003681 
  

  

  

  

  

  Bulb 
  freshly 
  filled. 
  

  

  

  

  

  

  1st 
  

  

  day 
  

  

  432-87 
  

  

  0-003675 
  

  

  

  

  

  3d 
  

  

  (( 
  

  

  

  

  280-4 
  

   313-4 
  

   512-3 
  

  

  2012 
  

   2301 
  

   4157 
  

  

  + 
  0-3 
  

   + 
  0-5 
  

   + 
  0-6 
  

  

  4th 
  

  

  (.(. 
  

  

  432-62 
  

  

  0.003676 
  

  

  

  

  

  6th 
  

  

  (( 
  

  

  

  

  506-0 
  

   605-2 
  

   633-8 
  

  

  4100 
  

   5087 
  

   5369 
  

  

  + 
  0-2 
  

   -0-8 
  

   -0-2 
  

  

  Yth 
  

  

  (( 
  

  

  432-41 
  

  

  0-003680 
  

  

  

  

  

  8th 
  

  

  u 
  

  

  

  

  612-2 
  

   649-5 
  

   690-9 
  

   698-1 
  

  

  5165 
  

   5537 
  

   5949 
  

   6015 
  

  

  -1-6 
  

   -1-1 
  

   -0-1 
  

   + 
  0-9 
  

  

  9th 
  

  

  (( 
  

  

  432-86 
  

  

  0-003680 
  

  

  

  

  

  9th 
  

  

  u 
  

  

  

  

  195-1 
  

  

  1295 
  

  

  -0-1 
  

  

  11th 
  

  

  <( 
  

  

  

  

  219-1 
  

  

  1488 
  

  

  + 
  0-5 
  

  

  11th 
  

  

  (( 
  

  

  

  

  676-4 
  

   673-9 
  

  

  5789 
  

   5756 
  

  

  + 
  1-1 
  

  

  + 
  1-8 
  

  

  14th 
  

  

  u 
  

  

  433-09 
  

  

  0-003680 
  

  

  

  

  

  15th 
  

  

  li 
  

  

  

  

  576-7 
  

   731-9 
  

   735-1 
  

  

  4786 
  

   6366 
  

   6390 
  

  

  + 
  0-9 
  

   + 
  1-0 
  

   + 
  1-9 
  

  

  16th 
  

  

  IC 
  

  

  433-61 
  

  

  0-003684 
  

  

  

  

  

  Bulb 
  freshly 
  \ 
  

  

  ailed. 
  

  

  

  

  

  

  1st 
  

  

  day 
  

  

  417-29 
  

  

  0-003671 
  

  

  

  

  

  2d 
  

  

  (( 
  

  

  

  

  813-1 
  

   816-1 
  

  

  7221 
  

   7253 
  

  

  + 
  1-4 
  

   + 
  1-5 
  

  

  