THIS bulletin presents the results of the first of a series 

 of investigations which have been planned by the 

 Committee on Farm Power, appointed by the Secretary of 

 Agriculture to represent the Bureau oT Public Roads, the 

 Office of Farm Management and Farm Economics, and the 

 Bureau of Animal Industry in a cooperative study of all 

 phases of the farm power problem. This committee has 

 been charged with carrying out, for the Department of 

 Agriculture, the plan of research in this field outlined by the 

 Farm Power Conference, at Chicago, on October 6 and 7, 

 1919. 



The committee recognizes the great importance of this 

 field of work and the inadequacy of the present investigation. 

 It is hoped that through more adequate appropriations and 

 more general cooperation with the State agricultural experi- 

 ment stations, the work may be broadened to make possible 

 a comprehensive study of the problems now calling for 

 solution in the development of farm power, in order that 

 farmers, horse breeders, and manufacturer^ may have at 

 hand such facts as will guide them toward the greatest 

 ultimate success. 



H. C. TAYLOR, 

 Chief, Office of Farm Management 



and Farm Economics, 

 G. M. ROMMEL, 

 Chief, Animal Husbandry Division, 



Bureau of Animal Industry, 

 S. H. McCRORY, 

 Chief, Agricultural Engineering, 



Bureau of Public Roads, 

 Department Committee on Farm Power. 



