CONTENTS 
INTRODUCTION. . 
Reasons for Night Work . 
Purpose and Scope of Study 
Pace 
1 
[. Tue Prace oF Nica Work IN INDUSTRY 
Organization of Night Forces . . . 
Proportion of Employees on Night Work 
Frequency of Rotation of Shifts 
Legal Restrictions on Night Work . 
Actual Hours of Night Work . 
II. Nicut Work OPERATION . 
Recruiting of Labor for Night Work . . 
Special Incentives or Inducements for Night Work 
[1I. Erriciency or Nigar Work... . 
Productivity of Night Forces . . . . . 
Quality of Workers and Efficiency of Supervision 
Labor Turnover. . 
Accident Frequency . . . + GW 
Factors Inducing or Retarding High Accident Rates 
Punctuality and Attendance of Night Workers . 
Health of Night Workers.  . . . ~~. . . 
Relative Costs of Operation for Day and Night Work . 
IV. Arritupe oF EmprLovees AND EMPLOYERS TOWARD 
Nica Work . 
Plants on Rotating Shift Plan. 
Plants on Regular Fixed Shift Plan . 
Plants on Temporary Fixed Shift Plan 
16 
16 
21 
25 
os 
v7 
KS) 
37 
58 
ol 
1 
22 
43 
V. SuMMARY . 
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