26 BULLETIN 659, U. S. DEPARTMENT OF AGRICULTURE. 
on the farms studied is approximately $1,200; the average value oi 
all other buildings, consisting of tenant houses, barns, sheds, etc., is 
about $550 per farm. 
The number and value of work stock increases when the size of 
farm increases, but not in the same proportion. Farms of 60 acres 
average slightly more than 3 head of work stock, and farms of 200 
acres utilize an average of nearly 8 head per farm. The average 
value of work animals on all farms is $135 per head (1914). 
The average value of cattle is $141 per farm. Other productive 
stock, consisting of about 75 chickens, 3 to 5 hogs, turkeys, ducks, 
guinea hens, etc.. are valued at approximately $100 per farm. 
RELATION OF SIZE OF FARM TO TYPE AND YIELD PER ACRE. 
The proportionate acreage of cotton increases slightly as the size 
of farms becomes larger and a slightly less proportionate area of 
corn is produced on the larger farms. The other miscellaneous crops 
show no regularity of increase or decrease as size of farm increases. 
Size of farm has a slight effect on the yield of cotton. Thirty-six 
Harms of 80 acres or less, averaging 62.5 acres, make an average 
yield of cotton of 256 pounds of lint per acre. Forty farms from 81 
to 120 acres in size make an average yield of 247 pounds of lint per 
acre. Thirty-nine farms of more than 121 acres, averaging 188.9 
acres, make an average yield of 233 pounds of lint per acre. The 
average yield of cotton for all farms in the survey is 241 pounds 
of lint. 
Size of farm apparently has no effect on the yield of other crops. 
The average yield for all corn is 25.6 bushels per acre ; for sorghum. 
2.8 tons: and for alfalfa. 2.51 tons. 
EFFICIENCY OF HORSE LABOR. 
Table XI shows the relation of size of farm to the efficiency of 
horse labor. As the size of farm increases, the number of days of 
productive labor that each animal perforins annually increases, those 
on the small farms accomplishing 60.3 days of productive work while 
on the large farms each animal works 79.1 days. The figures in the 
column headed <; Acres per horse " are obtained by dividing the num- 
ber of crop acres by the number of work animals per farm. It is 
seen that the work stock accomplish considerably more work on 
the large farms than on the small ones. At the same time there is 
very little difference in the amount of labor performed on each acre, 
as indicated in the column showing " Horse days per acre." 
