FARM MACHINERY 



45 



These several crops for the years covered by the data concern- 

 ing production by the aid of machine power were as follows : l 



Barley . . 



Corn . . . 



Cotton . . 



Hay . . . 



Oats . . . 



Potatoes . 



Rice . . . 



Rye . .*. 



Wheat . . 



Amount Produced 



69,695,223 bushels 

 ,212,770,052 bushels 



7,161,094 bales (500-pound) 

 47,078,541 tons 

 638,854,850 bushels 

 297,237,3/0 bushels 

 168,685,440 pounds 

 27,210,070 bushels 

 427,684,346 bushels 



The number of days' work of man-labor requisite for producing 

 the foregoing specified crops by the aid of machine power, together 

 with the quantity of those several crops which the same labor 

 power could have produced by the earlier hand method, are shown 

 in the following : 



Finding next the difference between the quantities of the sev- 

 * eral crops actually produced under machine methods, in the years 



horses, when used to draw a reaping machine, will be considered as much a part 

 of the machine as an engine and boiler would be, if used for the same purpose. 



2 The " unit numbers " here given are the unit numbers made use of in the 

 Thirteenth Annual Report of the Department of Labor, from which the data in the 

 table are taken. The numbers are repeated here only for purposes of reference. 



1 U.S. Dept. Agr., Year Book, 1900. 



