﻿138 
  C. 
  Barus 
  — 
  Continuity 
  of 
  Solid 
  and 
  Liquid. 
  

  

  data, 
  §6. 
  For 
  in 
  addition 
  to 
  relatively 
  greater 
  importance 
  of 
  

   the 
  corrections 
  for 
  the 
  compressibility 
  of 
  the 
  envelopes, 
  the 
  

   fissured 
  or 
  honeycombed 
  structure 
  and 
  the 
  high 
  resistances, 
  

   §10, 
  interfere 
  with 
  sharp 
  measurement. 
  Nevertheless 
  by 
  com- 
  

   paring 
  the 
  data 
  with 
  similar 
  solid 
  isothermals 
  obtained 
  at 
  much 
  

   higher 
  temperatures, 
  their 
  validity 
  may 
  be 
  inferred. 
  

  

  With 
  reference 
  to 
  the 
  series 
  it 
  is 
  interesting 
  to 
  note 
  that 
  re- 
  

   coil 
  of 
  volume 
  (pressure 
  decreasing) 
  is 
  more 
  rapid 
  than 
  compres- 
  

   sion. 
  The 
  reverse 
  of 
  this 
  would 
  have 
  been 
  anticipated, 
  sup- 
  

   posing 
  that 
  mercury 
  lodged 
  in 
  the 
  interstices. 
  The 
  liquid 
  in 
  

   the 
  above 
  case 
  was 
  allowed 
  to 
  solidify 
  under 
  pressure. 
  

  

  Table 
  6. 
  — 
  Isothermals 
  of 
  naphthalene, 
  at 
  83°, 
  referred 
  to 
  -55 
  cm? 
  at 
  the 
  normal 
  

   melting 
  point. 
  

  

  Time. 
  

  

  Pressure. 
  

  

  R. 
  \ 
  

  

  Jcp 
  

   xlO 
  3 
  

  

  Volume. 
  

  

  Time. 
  

  

  Pressure. 
  

  

  R. 
  

  

  x% 
  Volume. 
  

  

  TO. 
  

  

  atm. 
  

  

  ohms. 
  

  

  

  cm. 
  3 
  

  

  m. 
  

  

  aim. 
  

  

  ohms. 
  

  

  

  cm 
  3 
  

  

  36 
  

  

  39 
  

  

  923 
  

  

  2 
  

  

  •5498 
  

  

  79 
  

  

  129 
  

  

  5250 
  

  

  6 
  

  

  4241 
  

  

  39 
  

  

  226 
  

  

  1183 
  

  

  10 
  

  

  ■5371 
  

  

  81 
  

  

  89 
  

  

  4747 
  

  

  4 
  

  

  4358 
  

  

  44 
  

  

  221 
  

  

  1158 
  

  

  10 
  

  

  •5382 
  

  

  87 
  

  

  93 
  

  

  4348 
  

  

  4 
  

  

  4453 
  

  

  46 
  

  

  250 
  

  

  1223 
  

  

  11 
  

  

  •5355 
  

  

  94 
  

  

  93 
  

  

  4348 
  

  

  4 
  

  

  4453 
  

  

  51 
  

  

  244 
  

  

  1198 
  

  

  11 
  

  

  5365 
  

  

  96 
  

  

  70 
  

  

  3651 
  

  

  3 
  1 
  

  

  4630 
  

  

  53 
  

  

  267 
  

  

  1232 
  

  

  12 
  

  

  •5348 
  

  

  97 
  

  

  70 
  

  

  3256 
  

  

  3 
  

  

  4732 
  

  

  59 
  

  

  265 
  

  

  1227 
  

  

  12 
  

  

  ■5351 
  

  

  104 
  

  

  74 
  

  

  2031 
  

  

  3 
  

  

  5062 
  

  

  60 
  

  

  303 
  

  

  1288 
  

  

  13 
  

  

  •5322 
  

  

  115 
  

  

  76 
  . 
  

  

  1695 
  

  

  3 
  

  

  5172 
  

  

  63 
  

  

  322 
  

  

  1326 
  

  

  14 
  

  

  •5306 
  

  

  120 
  

  

  75 
  

  

  1480 
  

  

  3 
  

  

  5250 
  

  

  64 
  

  

  317 
  

  

  5667 
  

  

  14 
  

  

  •4138 
  

  

  122 
  

  

  49 
  

  

  920 
  

  

  2 
  

  

  5500 
  

  

  73 
  

  

  299 
  

  

  5712 
  

  

  13 
  

  

  •4128 
  

  

  127 
  

  

  52 
  

  

  905 
  ( 
  

  

  2 
  

  

  5508 
  

  

  75 
  

  

  127 
  

  

  5250 
  

  

  6 
  

  

  •4241 
  

  

  

  

  

  

  

  Table 
  7. 
  — 
  Isothermals 
  of 
  naphthalene, 
  at 
  90°, 
  referred 
  to 
  -55 
  cm* 
  at 
  the 
  normal 
  

   melting 
  point. 
  

  

  Time. 
  

  

  Pressure. 
  

  

  R. 
  

  

  kp 
  

   x 
  10 
  3 
  

  

  Volume. 
  

  

  to. 
  

  

  atm. 
  

  

  ohms. 
  

  

  

  cm. 
  3 
  

  

  16 
  

  

  57 
  

  

  773 
  

  

  3 
  

  

  •5542 
  

  

  18 
  

  

  231 
  

  

  972 
  

  

  10 
  

  

  •5432 
  

  

  24 
  

  

  222 
  

  

  957 
  

  

  10 
  

  

  •5439 
  

  

  26 
  

  

  422 
  

  

  1188 
  

  

  19 
  

  

  •5322 
  

  

  31 
  

  

  406 
  

  

  1155 
  

  

  18 
  

  

  •5338 
  

  

  33 
  

  

  490 
  

  

  1247 
  

  

  22 
  

  

  •5293 
  

  

  40 
  

  

  474 
  

  

  1232 
  

  

  21 
  

  

  •5302 
  

  

  42 
  

  

  507 
  

  

  1258 
  

  

  23 
  

  

  •5292 
  

  

  44 
  

  

  532 
  

  

  1288 
  

  

  24 
  

  

  •5276 
  

  

  46 
  

  

  | 
  555 
  

  

  5250 
  

  

  25 
  

  

  •4147 
  

  

  57 
  

  

  544 
  

  

  5290 
  

  

  24 
  

  

  •4139 
  

  

  60 
  

   65 
  

   67 
  

   73 
  

   76 
  

   81 
  

   83 
  

   89 
  

   91 
  

   95 
  

  

  316 
  

   322 
  

  

  280 
  

   283 
  

   283 
  

   278 
  

   175 
  

   179 
  

   81 
  

   83 
  

  

  R. 
  

  

  kp 
  

  

  x 
  1 
  s 
  

  

  ohms. 
  

  

  

  4618 
  

  

  14 
  

  

  4555 
  

  

  14 
  

  

  3855 
  

  

  13 
  

  

  2333 
  

  

  13 
  

  

  1985 
  

  

  13 
  

  

  1618 
  

  

  13 
  

  

  897 
  

  

  8 
  

  

  902 
  

  

  8 
  

  

  793 
  

  

  4 
  

  

  802 
  

  

  4 
  

  

  Volume. 
  

  

  cm. 
  6 
  

   •4311 
  

   •4326 
  

   •4504 
  

   •4929 
  

   •5028 
  

   •5152 
  

   •5472 
  

   •5468 
  

   •5530 
  

   •5524 
  

  

  17. 
  Liquid-solid 
  isothermal, 
  83°. 
  — 
  Three 
  independent, 
  series 
  

   are 
  in 
  hand. 
  The 
  example 
  given 
  in 
  table 
  6, 
  is 
  the 
  second 
  in 
  

   number. 
  It 
  is 
  from 
  these 
  isothermals 
  that 
  I 
  obtained 
  the 
  

  

  