252 POWER AND THE PLOW 



ing, the use of a tractor on the farm is seldom profitable unless 

 every effort is made to keep it busy during the remainder of 

 the year. Conditions have changed remarkably in the last 

 decade, and tractors are now in demand for a greater variety 

 of work than was once thought within its range of usefulness. 

 More satisfactory machines and implements for utilizing the 

 engine's power have constituted one great factor in adding to 

 the possible volume of work, and the most successful operator 

 will embrace every opportunity thus offered. 



