﻿Thermal 
  Expansion 
  of 
  Porcelain. 
  637 
  

  

  Specimen 
  2 
  {continued). 
  

  

  Determination 
  1. 
  Determination 
  2. 
  Determinations. 
  

  

  Dim. 
  of 
  thickness 
  f 
  / 
  '\/2... 
  0-0024017 
  mm. 
  00023886 
  mm. 
  0-0024148 
  mm. 
  

  

  of 
  air-layer 
  ... 
  \ 
  ./J'X/2... 
  0-0057352 
  0-0058304 
  00058829 
  

  

  *™. 
  t 
  fist 
  int.... 
  0-0101925 
  00099444 
  0-0103770 
  

  

  Exp. 
  ot 
  Pt.-Ir. 
  1 
  2nd 
  int.... 
  00211373 
  0-0210237 
  00215744 
  

  

  fist 
  int. 
  ... 
  0-0105065 
  0-0102556 
  0-0106997 
  

  

  Exp. 
  ofAl. 
  -{ 
  2 
  nd 
  int.... 
  0220486 
  0-0219412 
  00225159 
  

  

  ., 
  T 
  1st 
  int. 
  ... 
  -0 
  0003140 
  -00003112 
  -0-0003227 
  

  

  Excess 
  exp. 
  Al. 
  j 
  2nd 
  int 
  -0-0009113 
  -0-0009175 
  -0-0009415 
  

  

  Expansion 
  of 
  / 
  Lfe-Irf,... 
  0020877 
  00020774 
  0-0020921 
  

  

  k 
  Porcelain 
  ... 
  \ 
  Lt-U 
  r 
  .. 
  00048239 
  00049129 
  0-0049414 
  

  

  9 
  0000 
  031 
  447 
  0000 
  031 
  780 
  0000 
  030 
  029 
  

  

  '"" 
  0-000 
  000 
  082 
  63 
  0-000 
  000 
  086 
  32 
  0"000 
  000 
  093 
  29 
  

  

  L 
  ... 
  123338 
  mm. 
  123338 
  mm. 
  123338 
  mm. 
  

  

  a 
  0-000 
  002 
  550 
  0-000 
  002 
  577 
  0000 
  002 
  435 
  

  

  b 
  .'., 
  0-000 
  000 
  006 
  70 
  0-000 
  000 
  007 
  00 
  0000 
  000 
  007 
  56 
  

  

  Mean 
  values 
  «=0*000 
  002 
  521. 
  4=0-000 
  000 
  007 
  09. 
  

  

  Expansion 
  of 
  Bayeux 
  Porcelain. 
  — 
  Specimen 
  37 
  

  

  1^= 
  12-208 
  mm. 
  *&= 
  8*187 
  mm. 
  £=20549 
  mm. 
  <?=0*154 
  mm. 
  

  

  Determination 
  1. 
  Determination 
  2. 
  Determination 
  3. 
  

  

  f 
  t 
  8°-4 
  10°-4 
  7°5 
  

  

  Temperatures... 
  U 
  62°*2 
  63°*8 
  61-7 
  

  

  1 
  j 
  £ 
  122°-8 
  125°-5 
  123°0 
  

  

  r 
  h 
  7649 
  mm. 
  764 
  2 
  mm. 
  762*9 
  mm. 
  

  

  Bar. 
  pressures 
  ... 
  R 
  .'••'••• 
  764 
  7 
  764*3 
  7628 
  

  

  v 
  [b 
  s 
  764-5 
  764-5 
  7627 
  

  

  / 
  f 
  7-20 
  7-03 
  7-22 
  

  

  Corrn.::: 
  -0-03 
  -003 
  -003 
  

  

  ! 
  r 
  7-17 
  7-00 
  7-19 
  

  

  No. 
  of 
  bands 
  ...•{ 
  J 
  f 
  17 
  . 
  90 
  17-96 
  18-12 
  

  

  | 
  Corrn.'.'.'.' 
  -0*05 
  -005 
  -0-05 
  

  

  [ 
  f 
  3 
  > 
  17-85 
  17-91 
  1807 
  

  

  Dim. 
  of 
  thickness 
  f 
  A/2.- 
  00023525 
  mm. 
  00022967 
  mm. 
  00023591 
  mm, 
  

  

  of 
  air-layer 
  ...\ 
  f 
  3 
  'X/2... 
  0'0058o67 
  0-00o8,64 
  O00o92»8 
  

  

  fist 
  int 
  . 
  0-0096855 
  0*0096225 
  0-0097542 
  

  

  Exp. 
  of 
  Pt.-Ir. 
  | 
  J 
  nd 
  mt 
  0-0209204 
  0-0210737 
  0-0211174 
  

  

  r 
  1st 
  int 
  0-0100371 
  0-0099795 
  0-0101056 
  

  

  Exp. 
  of 
  Al. 
  ... 
  { 
  2n 
  d 
  int.'.'.. 
  0-0219452 
  0221269 
  00221483 
  

  

  41 
  fist 
  int.... 
  -0-0003516 
  -0-0003570 
  -0-0003514 
  

  

  Excess 
  exp. 
  Al. 
  j 
  2nd 
  int 
  _ 
  _O00l0248 
  -0-0010532 
  -00010309 
  

  

  Fxnansionof 
  (Ll-1*... 
  0-0020009 
  0-0019397 
  0-0020077 
  

  

  E 
  CXn 
  .. 
  {l!:-L,;... 
  0-0048319 
  00048232 
  0-0048979 
  

  

  fl 
  0000 
  031 
  315 
  000 
  029 
  613 
  0000 
  030 
  987 
  

  

  a- 
  "" 
  0-C00 
  000 
  083 
  25 
  0-000 
  000 
  090 
  45 
  0-000 
  000 
  087 
  50 
  

  

  L 
  .'.'.' 
  12-2077 
  mm. 
  12 
  2077 
  mm. 
  12*2078 
  mm. 
  

  

  a 
  000 
  002 
  565 
  0-000 
  002 
  426 
  0000 
  002 
  538 
  

  

  b 
  .'.'.' 
  0-000 
  000 
  006 
  82 
  0000 
  000 
  007 
  41 
  0000 
  000 
  007 
  17 
  

  

  Mean 
  values 
  «=0-000 
  002 
  510. 
  5=0'000 
  000 
  007 
  13. 
  

  

  Phil. 
  Mag. 
  S. 
  6. 
  Vol. 
  3. 
  No. 
  18. 
  June 
  1902. 
  2 
  U 
  

  

  