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From this table it may be seen that the greater part of the 

 loess is composed of particles intermediate in size between sand 

 and clay, but that it grades into sand on the one hand and 

 into clay on the other. The table also shows that the loess in 

 the vicinity of the larger streams, and in western Illinois, con- 

 tains a larger percentage of coarser particles than that over the 

 uplands some distance from the streams, and in the eastern 

 part of the state. Compared with the drift or bowlder clay, 

 shown in the right hand column, the loess contains a smaller 

 percentage of either the coarse or very fine constituents and a 

 relatively larger percentage of particles of intermediate size. 



