﻿Work 
  Measured 
  by 
  the 
  Discharge 
  of 
  Carbon 
  Dioxide. 
  

   No. 
  1. 
  Timework. 
  

  

  175 
  

  

  per 
  hoar 
  

   500- 
  

  

  cc's 
  

   C0 
  2 
  

   per 
  sec 
  . 
  

   20 
  

  

  10 
  

  

  ip.m. 
  z 
  

  

  jci.m. 
  8 
  9 
  10 
  n 
  12 
  ip.m. 
  2 
  

  

  o 
  

  

  ft 
  

  

  I 
  

  

  7a.m. 
  8 
  

  

  