24 NIGHT WORK IN INDUSTRY 
regular premium systems of wage payment; in nearly all 
plants they work on a time or piece-work basis. The range 
in amount of extra awards given to night workers in estab- 
lishments on temporary programs is indicated below: 
No financial incentives. ...... 
Extra incentives, not specified. . . . 
Slight incentive for limited group. . 
Two cents per hour extra. .... 
Five cents per hour extra. .... 
Five to ten cents per hour extra. . . 
Five per cent extra. ..... 
Five to ten per cent extra. . . 
Ten per cent extra............ 
Fifteen per centextra................... 
Twenty per cent extra. ....... 
Twenty-five per cent extra. ... 
Fifty per centextra................ 
Work 11 hours, pay for 12314 hours 
Number of Plants 
23 
mn 
Jui