﻿Johnston 
  — 
  Temperature 
  in 
  Deep 
  Wells 
  at 
  Findlay. 
  133 
  

  

  expanding 
  cools 
  itself 
  off.* 
  Its 
  influence 
  is 
  evident 
  in 
  the 
  

  

  present 
  series 
  of 
  measurements, 
  which, 
  therefore, 
  do 
  not 
  

  

  Temperature 
  at 
  Various 
  Depths 
  in 
  the 
  Borehole 
  at 
  Findlay, 
  Ohio. 
  

  

  

  Period 
  

  

  Temperatures 
  

  

  Corrected 
  aver- 
  

  

  

  Depth 
  

  

  of 
  im- 
  

   mersion 
  

   of 
  ther- 
  

  

  observed. 
  

  

  age 
  temperature. 
  

  

  

  in 
  

   feet. 
  

  

  Ther- 
  

  

  

  

  

  Eemarks. 
  

  

  mometer 
  

  

  mometer 
  

  

  Reading 
  : 
  

  

  Centi- 
  

  

  Fahren- 
  

  

  

  

  Hours. 
  

  

  number. 
  

  

  Degrees 
  C. 
  

  

  grade. 
  

  

  heit. 
  

  

  

  

  

  1 
  

  

  11-0 
  

  

  

  

  

  100 
  

  

  18 
  

  

  2 
  

   3 
  

  

  4 
  

  

  11-0 
  

   11-0 
  

  

  13-0 
  

  

  11-0 
  

  

  51-8 
  

  

  

  550 
  

  

  n 
  

  

  5 
  

   6 
  

  

  4 
  

  

  13-2 
  

   13-1 
  

  

  14-5 
  

  

  13-1 
  

  

  55-6 
  

  

  

  770 
  

  

  1 
  

  

  5 
  

   6 
  

  

  14-6 
  

   14-5 
  

  

  14-5 
  

  

  58-1 
  

  

  Level 
  of 
  gas 
  in 
  

   now. 
  

  

  

  ** 
  

  

  4 
  

  

  19-4 
  

  

  19-5 
  

  

  67-1 
  

  

  

  1165 
  

  

  5 
  

  

  19-5 
  

  

  1 
  

  

  

  

  6 
  

  

  19-6 
  

  

  

  

  1 
  

  

  JxTop 
  of 
  "Tren- 
  

  

  

  

  4 
  

  

  19-3 
  

  

  

  

  ton." 
  

  

  1165 
  

  

  i 
  

  

  5 
  

  

  6 
  

  

  1 
  

  

  19-4 
  

   19-5 
  

  

  225 
  

  

  19-4 
  

  

  66-9 
  

  

  J 
  

  

  1900 
  

  

  ii 
  

  

  2 
  

   3 
  

  

  4 
  

  

  225 
  

   22-4 
  

  

  25-4 
  

  

  22-5 
  

  

  72-5 
  

  

  Indications 
  of 
  oil. 
  

  

  2650 
  

  

  li 
  

  

  5 
  

   6 
  

  

  1 
  

  

  25-5 
  

   25-6 
  

  

  26-5 
  

  

  25-5 
  

  

  77-9 
  

  

  100 
  ft. 
  above 
  bot- 
  

   tom 
  of 
  Cambrian 
  

   sandstone. 
  

  

  2800 
  

  

  n 
  

  

  2 
  

   3 
  

  

  4 
  

  

  26-5 
  

   264 
  

  

  27-8 
  

  

  265 
  

  

  79-7 
  

  

  50 
  ft. 
  below 
  bot- 
  

   tom 
  of 
  Cambrian 
  

   sandstone. 
  

  

  2980 
  

  

  18 
  

  

  5 
  

  

  6 
  

  

  27-9 
  

  

  27-8 
  

  

  27-8 
  

  

  82-1 
  

  

  Bottom. 
  

  

  represent 
  the 
  temperatures 
  of 
  the 
  rock 
  at 
  horizons 
  above 
  that 
  

   of 
  the 
  gas 
  in 
  flow. 
  

  

  * 
  It 
  is, 
  of 
  course, 
  self-evident 
  that 
  no 
  definite 
  conclusions 
  of 
  value 
  can 
  be 
  

   drawn 
  from 
  temperature 
  measurements 
  in 
  wells 
  in 
  which 
  there 
  is 
  a 
  flow 
  — 
  

   even 
  a 
  small 
  flow 
  — 
  of 
  oil 
  or 
  water. 
  

  

  