4 BULLETIN" 516, U. S. DEPAEHMEXT OF AGRICULTUKE. 



periments have shown that it is ahnost impossible to divide a large 

 sample into smaller portions and at the same time retain the correct 

 proportion of damage, dirt, color, etc., in the smaller sample unless 

 a device similar to the one described in Bulletin 287 of the United 

 States Department of Agriculture is used. This apparatus was 

 devised to meet the demands of grain and seed dealers, as well as 

 laboratory workers, for securing a reliable grain or seed sample from 

 a larger portion of the material to be examined, analyzed, and graded. 

 Figure 1 shows a vertical cross section of the sampling device, while 

 figure 2 shows a cross section of this device at the base of the cone. 

 A detailed description of this sampling device is contained in the 

 before-mentioned bulletin. This device has been covered by a public- 

 service patent (No, 1,160,036), and anyone in the United States is 

 free to make and use it without the payment of a royalty. 



