68 BULLETIN 1258, U. S. DEPARTMENT OF AGRICULTURE. 
The efficient use of man labor and horse labor is an important factor 
in the successful operation of farms. The more successful farms cared 
for more acres of corn and more livestock per man than the less suc- 
cessful ones. They also cared for more acres of crops other than 
corn, and they had more machinery per work animal. 
The variations in relative prices of corn and hogs during different 
years were important factors in the incomes of given farms. In 1910, 
the price of 100 pounds of hogs equalled the price of 18.5 bushels of 
corn; and in 1916 the price of 100 pounds of hogs was equivalent to 
that of only 10.5 bushels of corn. In 1910, when they were relatively 
highest, hogs were the largest item of the receipts on 75 per cent of 
the more successful farms, and corn was the largest item on 8 per cent 
of this class of farms. In 1916, when hogs were relatively lowest, 
they were the most important source of receipts on 47 per cent of the 
more successful farms, and corn was the most important item on 45 
per cent of this class of farms. 
About 40 per cent of these farms were operated by tenants. Some 
of the tenants furnished all of the working capital and gave the land- 
lords half the crops for the use of the land. Other tenants furnished 
only part of the working capital, the landlords going half-and-half 
with the tenants in the livestock production. Very few tenants 
rented for cash. 
Tenants, as a rule, operated larger farms than owners, and tenants 
renting for a half share of the crops operated smaller farms than ten- 
ants who rented for a half share of the crops and livestock. 
Tenants on smaller farms received a larger share of the farm in- 
comes than did the landlords; but tenants on the larger farms re- 
ceived a smaller share of the farm incomes than did the landlords. 
Data for each farm for each year have been mimeographed and are 
available in this form for distribution upon application to the Bureau 
of Agricultural Economics, Washington, D. C., to those wishing to 
make future studies of them. 
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