158 ILLINOIS STATE DAIRYMEN'S ASSOCIATION 



In addition to the different methods for vetilating 

 corn, there are several simple schemes for aerating it in the 

 crib. Mr. R. L. Eyman, farm adviser of Jersey county, sug- 

 gests the use of rails. By sloping the rails, posts, or what- 

 ever timbers are used, to the outside, an air passage is 

 formed with the settling of the corn, making it possible for 

 the moisture and heated air to discharge from the center 

 of the crib. 



Forced Heat Best for Rapid Drying. 



For rapid drying, artificial forced heat is much better 

 than either natural ventilation or aeration. It is not neces- 

 sary, however, to heat air that is forced thru the cribs, so 

 long as the outside air is reasonably warm and dry. 



The Iowa Experiment Station found that the moisture 

 content of cribbed corn can be reduced from more than 30 

 percent to less than 10 percent at a cost of about three 

 cents a bushel for fuel and power. These results have been 

 secured by forcing air heated to temperatures varying from 

 160 to 180 degrees Fahrenheit up into the middle of the 

 crib. 



The air is first forced into the chamber of a furnace, 

 where it is heated, and is then forced into the crib with an 

 exhaust fan or blower. The Iowa Station reports that an 

 average crib 48 feet long can be equipped with conduits 

 and ventilators at a cost of less than $40 for material and 

 labor. 



DeWitt Farmer Has Heating Plan. 



A plan used some years ago by Mr. E. M. Thorpe, of 

 DeWitt county, in heating an ordinary crib, makes it pos- 

 sible to use an old furnace, an ordinary heater, or a stove. 



Mr. Thorpe placed his stove at one side of the crib 

 ana surrounded it with a sheet-iron jacket similar to a 

 warm-air furnace. A 12-inch pipe connected the stove with 

 the ventilator, and an upri \ht pipe at the far end of the 

 ventilator was used in getting the air moving. After the 

 air started circulating, this pipe was closed and all the 

 warm air allowed to pass thru the corn. Mr. Thorpe re- 



