234 THE ILLINOIS GLACIAL LOBE. 



A well on the farm of Mrs. Robert Carson, in eastern Piatt County, 

 near the south border of the moraine, reached a depth of 200 feet without 

 encountering- rock. It appears to have been mainly through a fine sand. 

 On the north border of Blue Ridge Frank Delaney sunk a well to a depth 

 of 280 feet without encountering- rock. A well was sunk by George Frank- 

 enburgher on the crest of the moraine, 2 miles east of Mahomet, to a depth 

 of about 200 feet without encountering rock. It was almost entirely 

 through till. 



An experimental boring for gas, oil, etc., made at the city of Cham- 

 paign in the winter of 1891-92, is reported by E. M. Burr, of Champaign, 

 to have the following drift section: 



Section of boring at Champaign, Illinois. 



Feet. 



Black soil and a pebbleless clay subsoil 4 



Yellow and gray pebbly clay 44 



Quicksand 12 



Gravel 7 



Gray pebbly clay 35 



Quicksand 71 



Water-bearing gravel 6 



Hardpan (exact nature not noted) 5 



Quicksand 11 



Gravel 7 



Hard, pebbly clay 51 



Clay containing small pieces of coal 1 



Quicksand and gravel 21 



Gray clay containing pieces of coal near bottom 9 



Quicksand 16 



Total drift 300 



The following section of an attempted coal shaft sunk by John Faulds 

 at Champaign appears in the Greology of Illinois (Vol. IV., p. 272): 



Section of coal shaft at Champaign, Illinois. 



Feet. 



Soil, clay, and quicksand 17 



Eed and blue clay 73 



Peat 2 



Quicksand, with tree 7 inches in diameter 9 



Soft yellow clay 9 



Sand 3 



Yellow clay 7 



Sand and gravel 59 



Total depth 179 



The bottom of the drift was not reached in this place. The statement 

 is made that an earlier boring- near by, of which a complete record was not 



