208 Organization and Management 
a man in the organization, or, in the absence of such a 
boss, by the foreman. 
Time STupy Dors Nor Mean Driving 
Scientific time study recognizes the fact that the worker 
must not use too much strength and vitality at one stretch. 
This is important. It is not only requisite to know that 
in some classes of work the necessary rest periods aggre- 
gate two hours a day, while in certain other classes of 
work they are as high as one-half of the total working 
time. It is necessary also to know how long a man should 
work between the rest intervals in order to avoid fatigue. 
For example, in the case of a skilled drop-hammer black- 
smith, we might know that, generally speaking, a man 
would need to rest approximately one-half of the work- 
ing time. We shall have to know also whether it is best 
to work five minutes and rest five minutes, or to work 
ten minutes and rest ten minutes. This information can 
be gained only by careful experiment. 
It must also be borne in mind that interest in one's work 
will lessen fatigue. Hence a man’s mental attitude to- 
wards his work means a great deal. The development of 
loyalty and enthusiasm among the employes, as well as 
the employment of the right sort of men to take the time 
studies, will do much towards keeping up the man's in- 
terest in the work. A suitable system of extra remunera- 
tion for work done in accordance with instructions, and 
within the time limits specified, will also tend to keep up 
the interest, especially if each job is made the subject of 
a distinct bonus chart applicable to the particular ma- 
chine, or to conditions at the particular production center 
where the work is being done. 
The scientific determination of the amount of fatigue 
after continuous exertion of various kinds and for certain 
  
    
  
   
   
  
  
  
  
  
  
  
  
  
  
  
   
  
  
  
  
   
  
  
  
  
  
  
  
  
  
  
  
  
    
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