COST AND UTILIZATION OF POWER ON FARMS. 57 
size of their farms and there was no change in acreage on the remain- 
ing 172. All of those who were farming smaller acreages than before 
the purchase of tractors were renters who had moved to smaller 
farms or owners who in 1920 rented out some ground which they 
formerly farmed themselves. On the average these men were 
farming 84 less acres and using 5.1 less horses than before the pur- 
chase of tractors. 
Farms which were increased in size. — The 81 men who were farming 
greater acreages than before they purchased tractors were located 
in the following areas: 
Men. 
Madison County, Ohio 11 
Seneca County, Ohio 9 
Madison County, Ind 14 
Montgomery County, Ind 17 
Livingston County, 111 13 
Knox County, 111 f 17 
One- third of the men interviewed in Madison County, Ind., were 
farming greater acreages, while less than one-fourth of those in Liv- 
ingston County, 111., had increased the size of their farms. 
The average size of the farms operated by these 81 men before they 
purchased tractors was 206.4 acres and at the time of the survey the 
average size was 296.8 acres. They kept on the average 7.6 head of 
workstock — one for each 27.0 acres (total not crop acres) — before the 
purchase of tractors. At the time of the investigation they were 
keeping 6.9 head, or one for each 42.3 acres. 
The number of men who increased the size of their farms by different 
amounts were as follows: 
41 Less than 80 acres. 
28 80 to 159 acres. 
12 160 acres and over. 
The changes in the number of workstock kept were as follows : 
Of the 41 who were farming less than 80 additional acres 
23 had reduced their workstock by an average of 3.5 head. 
13 were keeping the same number of workstock as before. 
5 had increased their workstock by 1 head. 
Of the 28 who were farming 80 to 159 additional acres 
10 had reduced their workstock by an average of 2.5 head. 
8 were keeping the same number as before. 
10 had increased their workstock by an average of 2.3 head. 
Of the 12 who were farming 160 or more additional acres 
5 were keeping the same number as before. 
7 had increased their workstock by an average of 3.7 head. 
