42 
BULLETIN 917, U. S. DEPARTMENT OF AGRICULTURE. 
cellar later, depending upon when the potatoes are sold. Sorting is 
always done just before the potatoes are marketed. They are hauled 
and sold in the sacks. 
More man labor and less horse labor are required in marketing an 
acre of potatoes than in marketing an acre of beets. 
Fig. 37.— Thrashing cantaloupe seed. 
Beets and cantaloupes are the only crops grown that must be 
marketed as soon as harvested. The other crops are marketed at a 
time when the field work is less pressing. 
COST OF PRODUCTION. 
As has been indicated, the prices of materials and the wages for 
labor were abnormal in 1917. These are factors which may vary 
Fig. 38.— Cleaning and drying cantaloupe seed. 
appreciably from year to year. Such items as the number of hours 
of labor, pounds of seed, tons of manure, and pounds of twine remain 
fairly constant. 
