4 BULLETIN 516, U. 5. DEPARTMENT OF AGRICULTURE. 
periments have shown that it is almost impossible to divide a large 
sample into smaller portions and at the same time retain the correct 
proportion of damage, dirt, color, ete., 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 
fizure 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. 
