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nels, empty them into the box marked "medium sized kernels," while 

 the small kernels from ear No. 3 should be emptied into the box 

 marked "small kernels." You will now have three sizes of seed — 

 large, medium and small. In case some of the ears have especially 

 long kernels, it is well to make another grade or two, as may seem 

 necessary. The man who grades can rapidly empty the pans into 

 the proper boxes. 



So far as this operation is concerned, the corn has been graded 

 without the use of the corn sorter. The corn sorter will, however, 

 take out the small, excessively thick, and also the large irregular ker- 

 nels. The three different lots which you have graded — large, med- 

 ium, and small kernels, may each respectively be run through a corn 

 sorter and in this way the ill-shaped, small, and excessively large 

 kernels which were left on the ears after shelling off the butts and 

 tips will be removed. The sorter will do it more rapidly than it could 

 be done by hand. 



Many patent graders are appearing on the market. The principle 

 of sorting by gravity is the best one so far evolved. With the in- 

 creased volume of business to be done by seed houses and large 

 growers, the commercial grader will come into use very generally. 

 The chief objection to them is the fact that they take little or nc 

 consideration of the length of kernel, the very factor which causes 

 difficulty in planting. 



HAND SHAKE CORN SORTER 



\'cry vapiil ami efficient sorting can be ilune in a small way 

 with this device. 



In letters to the Farm Crops Department from 18(:) representatixe 

 fanners over the State nf Iowa, 86 stated that they tried to grade their 

 seed C'irn cither by hand or liy a small grader. Xearly all of tlicni 

 followed the practice of shelling off the tip and butt kernels. 



Corn with a few years careful selection back of it will be found 

 to produce kernels much more uniform as to size and shape than 

 that which is produced from the common run of seed. 



The Experiment Station <i[ Indiana conducted a test showing the 



