COST AND UTILIZATION OF POWER ON FARMS. 9 



SIZE AND AGE OF TRACTORS. 



Table 3 shows the number of tractors of different sizes on the farms 

 in the different areas. 



Table 3. — Number of tractors of the different sizes on the 286 farms studied. 



Area. 



Number 

 of farms. 



1-plow 

 tractor. 



2-plow 

 tractors. 



3-plow 

 tractors. 



4-plow 

 tractors. 



6-plow 

 tractor. 



Madison County, Ohio . . . 



Seneca County, Ohio 



Madison County, Ind 



Montgomery County, Ind 

 Livingston County, 111 . . . 

 Knox County, 111 



Total 



2X0 



104 



The 2-plow size predominated in each area. However, the pro- 

 portion of farmers using this size was considerably greater in the 

 Ohio areas and in Madison Co., Indiana, than it was in Montgomery 

 Co., Indiana and in the two Illinois areas. 



Every farmer visited had used his tractor for at least one full 

 year's work. The number of months the tractors of different sizes 

 had been owned at the time of the investigation is given in Table 4. 



Table 4. — Number of tractors of different ages on the 286 farms studied. 



Age. 



1-plow 

 tractor. 



2-plow 

 tractors. 



3-plow 

 tractors. 



4-plow 

 tractors. 



5-plow 

 tractor. 



All 

 sizes. 





1 



74 

 60 

 28 

 12 



29 

 39 

 20 

 16 



2 

 1 

 1 



2 





106 



15 to 26 months 





100 



27 to 38 months 





49 







1 



31 











1 



174 



104 



6 



1 



286 







The one 1-plow tractor had been used just one year, and the 

 5-plow tractor had been used four years. 



The farmers were visited in October and November, and those 

 who had owned their tractors 14 months or less had used them for 

 just one full year's work. The men who had owned their tractors 

 from 15 to 26 months had used them for one and a half or two years; 

 those who had owned their tractors 27 to 38 months had used them 

 two and a half or three years; and those who had owned their 

 tractors 39 months and over had done more than three full years 

 of work with them. 



Sixty-five per cent of the tractors which had been owned two 

 years and less were 2-plow machines. However, only 50 per cent 

 of those that had been owned over 2 years were of the 2-plow size. 

 On the average, the 2-plow tractors had been owned 21 months, 

 the 3-plow tractors 25 months, and all tractors 23 months. 

 56390°— 21— Buil. 997 2 



