﻿178 
  Dr. 
  A. 
  D. 
  Waller. 
  The 
  Physiological 
  Cost 
  of 
  Muscular 
  

  

  Labourer 
  No. 
  2 
  — 
  continued. 
  

  

  Time. 
  

  

  Time 
  of 
  

   sampling 
  

   (seconds). 
  

  

  Ventila- 
  

   tion 
  

   (litres). 
  

  

  Ventila- 
  

   tion 
  

   (c.c. 
  

  

  per 
  sec). 
  

  

  C0 
  2 
  

   per 
  

   cent. 
  

  

  co 
  2 
  

  

  (c.c. 
  

   per 
  

   sec). 
  

  

  

  Tuesday, 
  December 
  17 
  (Time 
  work). 
  

  

  7.30 
  

   8.30 
  

   9.30 
  

   10.30 
  

   11.30 
  

  

  60 
  

   30 
  

   30 
  

   30 
  

   30 
  

  

  18 
  

   17 
  

   20 
  

   19 
  

   22 
  

  

  300 
  

   567 
  

   667 
  

   633 
  

   733 
  

  

  2-0 
  

   2 
  -4 
  

   2-5 
  

   2-8 
  

   2-6 
  

  

  6-0 
  

   13 
  -61 
  

  

  16 
  -67 
  

  

  17 
  -72 
  

   19 
  05 
  

  

  Miscellaneous 
  building 
  work. 
  

  

  (Shovelling, 
  barrow-wheeling, 
  brick- 
  

   [ 
  loading. 
  

  

  1.0 
  

  

  60 
  

  

  20 
  

  

  333 
  

  

  2 
  2 
  

  

  6-32 
  r 
  

  

  

  2.0 
  

  

  30 
  

  

  18 
  

  

  667 
  

  

  3 
  -0 
  

  

  9-00 
  

  

  ;>Do. 
  

  

  3.0 
  

  

  30 
  

  

  20 
  

  

  600 
  

  

  2-6 
  

  

  15-60 
  

  

  4.0 
  

  

  30 
  

  

  23 
  

  

  767 
  

  

  3-2 
  

  

  24-54 
  l„ 
  

  

  i 
  

  

  

  Wednesday, 
  December 
  18 
  (Time-work). 
  

  

  8.0 
  

  

  60 
  

  

  15 
  

  

  250 
  

  

  2-0 
  

  

  5-00 
  

  

  1 
  

   1 
  

  

  9.0 
  

  

  30 
  

  

  18 
  

  

  600 
  

  

  2-2 
  

  

  13 
  -20 
  

  

  10.0 
  

  

  30 
  

  

  15 
  

  

  500 
  

  

  2-7 
  

  

  13-50 
  

  

  1 
  

  

  11.0 
  

  

  30 
  

  

  17 
  

  

  567 
  

  

  2o 
  

  

  14-17 
  

  

  11.45 
  

  

  30 
  

  

  19 
  

  

  633 
  

  

  2-8 
  

  

  17-72 
  

  

  J 
  

  

  Building 
  work, 
  

   heads. 
  

  

  Concreting 
  door- 
  

  

  12 
  to 
  1 
  p.m. 
  Dinner 
  hour. 
  

  

  1.0 
  

  

  60 
  

  

  20 
  

  

  333 
  

  

  2-2 
  

  

  7 
  -32 
  

  

  2.0 
  

  

  30 
  

  

  15 
  

  

  500 
  

  

  3 
  -2 
  

  

  16 
  -00 
  

  

  3.0 
  

  

  30 
  

  

  18 
  

  

  600 
  

  

  3-5 
  

  

  21 
  -00 
  

  

  3.45 
  

  

  30 
  

  

  18 
  

  

  600 
  

  

  3-8 
  

  

  22 
  -80 
  

  

  Do. 
  

  

  Thursday, 
  December 
  19. 
  

  

  8.0 
  

  

  60 
  

  

  21 
  

  

  350 
  

  

  2-0 
  

  

  7-00 
  

  

  Building 
  work. 
  

  

  9.0 
  

  

  30 
  

  

  15 
  

  

  500 
  

  

  2-0 
  

  

  10 
  -oo 
  

  

  10.0 
  

  

  30 
  

  

  16 
  

  

  533 
  

  

  2-3 
  

  

  12 
  -26 
  

  

  

  11.0 
  

  

  30 
  

  

  22 
  

  

  733 
  

  

  3 
  

  

  22 
  -00 
  

  

  *Coaling 
  from 
  11 
  to 
  12. 
  

  

  11.45 
  

  

  30 
  

  

  28 
  

  

  667 
  

  

  2-8 
  

  

  18-68 
  

  

  

  12 
  to 
  1 
  p.m. 
  Dinner 
  hour. 
  Says 
  that 
  the 
  work 
  has 
  been 
  easier 
  and 
  that 
  lie 
  feels 
  all 
  right. 
  

  

  1.0 
  

  

  60 
  

  

  18 
  

  

  300 
  

  

  2-1 
  

  

  6-30 
  

  

  

  2.0 
  

  

  30 
  

  

  15 
  

  

  500 
  

  

  2-2 
  

  

  11 
  -oo 
  

  

  Building 
  work. 
  

  

  3.0 
  

  

  30 
  

  

  14 
  

  

  467 
  

  

  2-5 
  

  

  11 
  67 
  

  

  

  4.0 
  

  

  30 
  

  

  19 
  

  

  633 
  

  

  2 
  -4 
  

  

  15 
  19 
  

  

  

  The 
  most 
  remarkable 
  " 
  new 
  fact 
  " 
  brought 
  out 
  in 
  these 
  observations 
  is 
  the 
  

   progressive 
  increase 
  of 
  the 
  CO2 
  ordinate 
  in 
  successive 
  hours, 
  which 
  must 
  be 
  

  

  