THE QUESTION OF FATIGUE FROM THE ECONOMIC STANDPOINT. 333 



half for dinner and breakfast). To reckon the average per hour in each period, 

 therefore, A will be divided by one and a half and B by six to five and a half 

 (say, 5§). 



In times of depression dismissal of hands or weekly rotation of hands is resorted 

 to in these trades rather than short-time every day. No ' correction ' need be made 

 for this factor therefore. 



(2) Omit all accidents due to work which is regularly performed in one part of the 

 day and not another, and is of special danger. This applies to casting in foundries 

 which causes the accidents from molten metal reportable to L:spectors and Surgeons. 

 In foundries, therefore, accidents reported to Inspectors only will be quoted. 



Note. — Unless work begins after 7.30, as in Manchester district, on Mondays. 



Table IX.c- — Metal Working Accidents. 



The tables in the Annual Reports which correlate causation of accident with the 

 hour of day, though generally denoting by ' causation ' the description of the occurrence 

 (e.g., explosions, catching of finger, &c.) rather than the conditions of the work, yet 

 class together in Shipbuilding, Auto and Loco Manufacture, all accidents occurring 

 on Metal Working Machines. When full hours are certainly worked, the accidents 

 occurred as follows : — 



Accidents on Metal Working Machines only. 



Hour of Day 

 10-11 . 

 11-12 . 



2-3 . 

 3-4 . 

 4-5 . 



Shipbuilding 

 . 87 

 . 79 



. 60 

 . 71 



. 77 



Auto Mfg. 

 23 

 28 



18 

 39 

 35 



Loco Mfg. 

 80 

 103 



50 



66 



108 



Total 

 190 

 210 



128 

 176 

 220 



