- 5- 



Figure 1. —Radiograph of a typical separation of 

 infested and noninfested kernels. The top layer 

 shows the kernels floated by sodiun silicatej 

 the ne:d: layer is floated by nethyl chlorofom- 

 deodorized kerosene. The remainder are kernels 

 that have sunk to the bottom. 



