CHAMPAIGN COUNTY. : 495 
skilled labor much better results could be attained, but at present the 
number of potteries is very small, and the product unimportant. 
In many of the swampy valleys quantities of marl are found, which, 
when burned, yield excellent lime. 
The large deposits of gravel distributed through the county insure a 
perfect system of good roads within a few years. 
