118 



Indiana University Studies 



CHAPTER X 



EXTRACTION OF MINERALS 



§1. Specific Mining Pursuits 



In 1910 in Indiana 24,300 persons were engaged in the extrac- 

 tion of minerals, 24,293 being males and 7 females. Mining, on 

 the basis of the number of workers, ranked eighth, these workers 

 comprising 2.3 per cent of the total. 



Mining pursuits in Indiana are indicated in Graph 17 and the 

 following table: 



Males 



Coal mine operatives 19,184 



Quarry operatives 



Oil and gas well operatives . . . 



Foremen and overseers 



Operators 



Managers 



All other mine operatives .... 



Officials 



Operators (gold and silver) . . 



Inspectors 



Iron mine operatives 



Load and zinc mine operatives . 



Copper mine operatives 



Salt well and works operatives 



2,914 

 938 

 489 

 436 

 215 

 32 

 22 

 22 

 15 

 14 

 5 

 4 

 3 



Females 

 3 

 2 



Total 24,293 



Total 

 19,187 

 2,916 

 938 

 489 

 437 

 216 

 32 

 22 

 22 

 15 

 14 

 5 

 4 



24,300 



Geaph Vi 



Workers in Mining Pursuits 



5,000 

 _J , 



IQOOO 



I . 



15,000 



Coal mine operatives 

 Quarry operatives 



ZQOOO 

 I 



Specific Work of Various Age Groups 



Miners were distributed in the various age groups as indicated 

 in Table 37. 



