544 
Index 
Work accidents—Continued 
Fatal Accidents); Coal mines: 
carelessness of mine managers, 
465; cause of, competition 
among coal operators, 29, 467, 
468; increasing with progress in 
engineering, 466; opinions of 
experts on the causes of, 462; 
preventable by legislation and 
efficient inspection, 468, 469; 
prevention of, expensive, 464; 
Railroads: compared with coal 
mines, 484; Responsibility: for, 
shifted to recent immigrants, 
458, 459 
Working days, average number, 
per man increased with recent 
immigration, 436, 437 
Worsted mills, (See Woolen 
and Worsted Mills)