﻿234 
  Dr. 
  A. 
  D. 
  Waller. 
  The 
  Physiological 
  Cost 
  of 
  Muscular 
  

  

  obtained 
  may, 
  therefore, 
  be 
  compared 
  with 
  those 
  of 
  Labourer 
  No. 
  2 
  (given 
  

   above) 
  for 
  coaling. 
  For 
  these 
  three 
  mornings 
  the 
  average 
  CO2 
  ordinate 
  for 
  

   the 
  last 
  three 
  hours 
  was 
  24 
  - 
  l, 
  or 
  net 
  liO'l, 
  signifying 
  402 
  Kals 
  per 
  hour, 
  

   or 
  208-3 
  Kals 
  per 
  hour 
  per 
  square 
  metre. 
  (King's 
  average 
  for 
  the 
  first 
  three 
  

   hours 
  of 
  two 
  forenoons 
  of 
  coaling 
  was 
  20'45 
  gross, 
  or 
  16 
  - 
  45 
  net, 
  signifying 
  

   329 
  Kals 
  per 
  hour, 
  or 
  168 
  - 
  8 
  Kals 
  per 
  hour 
  per 
  metre.) 
  

  

  Labourer 
  No. 
  6 
  worked 
  continuously 
  at 
  high 
  pressure 
  during 
  the 
  nights 
  

   of 
  August 
  5th, 
  6th, 
  and 
  7th, 
  and 
  the 
  mean 
  CO2 
  for 
  the 
  last 
  three 
  hours 
  

   of 
  these 
  three 
  nights 
  was 
  26*53 
  (gross) 
  or 
  22 
  - 
  53 
  (net), 
  signifying 
  506 
  Kals 
  

   per 
  hour 
  or 
  246 
  - 
  2 
  Kals 
  per 
  hour 
  per 
  metre. 
  

  

  These 
  are 
  not 
  figures 
  selected 
  to 
  prove 
  any 
  case, 
  but 
  figures 
  collected 
  as 
  

   a 
  fair 
  random 
  sample 
  under 
  conditions 
  of 
  maximum 
  heavy 
  work 
  in 
  cold 
  storage, 
  

   fairly 
  comparable 
  with 
  figures 
  afforded 
  by 
  maximum 
  heavy 
  work 
  (coaling) 
  

   at 
  ordinary 
  temperatures. 
  Their 
  comparison 
  may 
  be 
  facilitated 
  by 
  casting 
  

   them 
  into 
  tabular 
  form. 
  Obviously 
  they 
  are 
  too 
  few 
  in 
  number 
  to 
  warrant 
  

   any 
  general 
  conclusion 
  or 
  to 
  be 
  used 
  as 
  a 
  statistical 
  basis. 
  

  

  

  

  No. 
  of 
  

   observations. 
  

  

  Net 
  C0 
  2 
  

   per 
  sec. 
  

  

  Net 
  Kals 
  

   per 
  hour 
  

   per 
  metre. 
  

  

  

  Coaling 
  

  

  Cold 
  storage 
  

  

  6 
  

   9 
  

   9 
  

  

  16-45 
  

   22 
  -53 
  

   20-10 
  

  

  168-8 
  

   246-2 
  

   208 
  -3 
  

  

  The 
  cases 
  of 
  Labourers 
  Nos. 
  3 
  and 
  5 
  -must 
  be 
  rejected 
  altogether 
  in 
  this 
  

   connection 
  ; 
  they 
  gave 
  low 
  values 
  in 
  cold 
  storage 
  work, 
  but 
  their 
  work, 
  and 
  

   therefore 
  their 
  energy 
  output, 
  was 
  too 
  intermittent 
  ; 
  their 
  CO2 
  ordinates 
  or 
  

   their 
  heat 
  discharge 
  per 
  square 
  metre 
  was 
  below 
  par, 
  much 
  lower 
  than 
  for 
  

   ordinary 
  piece-work 
  or 
  even 
  time-work. 
  

  

  The 
  energy 
  output 
  at 
  the 
  East 
  Surrey 
  Docks 
  during 
  the 
  winter 
  months 
  

   January 
  and 
  February 
  was, 
  on 
  the 
  whole, 
  much 
  lower 
  than 
  that 
  found 
  at 
  

   the'Smithfield 
  cold 
  storage 
  chambers 
  during 
  the 
  summer 
  months 
  July 
  and 
  

   August. 
  We 
  do 
  not 
  attribute 
  the 
  difference 
  to 
  the 
  season, 
  but 
  to 
  the 
  

   difference 
  of 
  labour 
  conditions. 
  The 
  output 
  of 
  energy 
  per 
  man 
  (or 
  per 
  square 
  

   metre 
  of 
  man-surface) 
  is 
  greater 
  at 
  Smithfield 
  because 
  the 
  daily 
  aggregate 
  

   of 
  work 
  done 
  was 
  greater. 
  

  

  