856 



UNITED STATES, THE CENSUS OF. 



The statistics of the production of iron-ore 

 in the United States for the census year 1880 

 are as follows : Number of establishments, 

 805 ; maximum yearly capacity of production, 

 13,462,917 tons; total production in 1880, 

 7,971,706 tons, including 909,877 tons irregu- 

 lar product ; value of product of establish- 

 ments, $20,470,756 ; value of total product, 

 $23,167,007; value of all materials used in 

 regular industry, $2,896,011; wages paid in 

 establishments of regular industry, $9,538,117; 

 total number of employes, 31,668; total capi- 

 tal employed and invested in the regular in- 

 dustry, $61,782,287. The change, or rather 

 the increase, in this industry during the dec- 

 ade ending June 1. 1880, expressed iu per- 

 centages on the returns of the census of 1870, 

 was as follows : 



Gain in number of establishments 91-67 



Gain in total number of employes 110- 81 



Gain in amount paid as wages 89-43 



Gain in amount paid for material 126' 33 



Gain in total capital 247'61 



Loss in value per ton of product 25-45 



Gain in value of total product 75 '45 



Gain in tonnage of total product 135'00 



Gain in product of regular establishments . . . 108-00 



The following are the most important figures 

 of the production of copper in the United States 

 east of the 100th meridian : Number of mines, 

 32 ; maximum capacity of yearly production, 

 62,932,871 pounds of metal ; product of census 

 year in tons of ore or rock, 1,005,955; prod- 

 uct of census year in pounds of ingot cop- 

 per, 50,655,140; value of product, $8,842,961; 

 value of materials or supplies used, $1,391,- 

 101 ; wages paid, $2,915,103; total number of 



