PIONEER hybrids carefully prepared... 
As soon as Pioneer hybrid seed reaches the plant 
. .. it is delivered to the sorting department... 
on large conveying belts . . . where trained work- 
ers carefully hand sort the corn, ear by ear. Dam- 
aged kernels are picked out of the good ears... 
and the weak... chaffy ... moldy ... and off- 
type ears are discarded. 

SORTING ROOM 

SORTERS . . . CHECKERS IN CENTER DAMAGED CORN IS REMOVED BEFORE SHELLING 
After the sorted corn has been re-examined by the checkers, it is conveyed to large bins 
. . - with slatted floors. Large, portable driers with oil burning furnaces and electrically 
driven pressure fans .. . force hot air uniformly through every part of the drying bins 
. . . at the rate of 46,000 cubic feet per minute. The warm air circulates upward through 
the slatted floors ... into the corn .. . and out through doors above the corn. 
The moisture content of all Pioneer corn is reduced to 12 percent before it is removed from 
the bins . . . to be shelled. 

E DRIE EST) 
pORTABE NG EQUIPMENT 
DRYING BIN PARTLY FILLED 
2,000 to 2,500 men, women, girls and boys are employed in Pioneer plants | 

