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EDWARD H. SANBORN 



crease in the average power per establishment of 27 horse- 

 power, or 68 per cent. 



Average Horsepower per Establishment in Selected 

 Industries: 1880 to 1900. 



Industries. 



All industries 



Agricultural implements 



Boots and shoes, factory product 



Cotton goods 



Flouring and grist mill products 



Hosiery and kuit goods 



Iron and steel 



Lumber and timber products. .. . 



Paper and wood pulp 



Silk and silk goods 



Woolen goods 



Worsted goods 



All other industries 



Average Horsepower per Establishment. 



Steam still continues to be pre-eminently the primary 

 power of greatest importance, and the census returns indicate 

 that the proportion of steam to the total of all powers has 

 increased very largely in the past thirty years. In 1870 steam 

 furnished 1,215,711 horsepower, or 51.8 per cent of a total of 

 2,346,142; in 1880 the amount of steam power used was 

 2,185,458 horsepower out of a total of 3,410,837, or 64.1 per 

 cent; in 1890, out of an aggregate of 5,954,655 horsepower, 

 4,581,595, or 76.9 per cent, was steam; while in 1900 steam 

 figured to the extent of 8,742,416 horsepower, or 77.4 per cent, 

 in a total of 11,300,081. This increase in thirty years, from 

 51.8 per cent to 77.4 per cent of the total power shows how 

 much more rapidly the use of steam power has increased than 

 other primary sources of power. 



The tendency toward larger units in the use of steam 

 power is shown inadequately by the increase in the average 

 horsepower per engine from 39 horsepower in 1880, to 51 

 horsepower in 1890, and 56 horsepower in 1900. 



