406 



T. 10 N., R. 3 W., at Mr. Whitsell's. Surface elevation, 720 feet. Depth, 

 12 feet. Under a shallow surface soil occurs a blue clay which contains 

 very fine, angular sand grains. These grains are invisible to the eye, 

 though they may be felt when the dry material is rubbed between tbe finger 

 and thumb. This very fine sandy clay is very tough, tenacious, and 

 slightly sticky when wet, and of a distinct blue color. On exposure to the 

 air it takes on a brownish-grey hue. When dry it is an ash color. Ap- 

 plicaton of muriatic acid shows that it is highly cbarged with calcium 

 carbonate. (This detailed description is given because this material is 

 often encountered in the lower parts of wells. Hereafter it will be desig- 

 nated as blue clay. It will be further discussed later.) 



Well No. 7. One-fourth mile north of well No. 6, at the residence of 

 B. Smitb, is a well which reaches bed-rock at a depth of 12 feet. The sur- 

 face elevation is 720 feet. 



Well No. S. One-eighth mile northeast of well No. 7, N. W. corner 

 of Section 31, T. 10 N., K. 2 W., at C. Wampler's. Surface elevation, 

 720 feet. 



Soils 17 feet. 



Imbedded logs 1 foot. 



Clay 8 feet. 



Gravel and sand 1 foot. 



Limestone 



Well No. 9. One-eigbth mile north of No. S. southwest corner of 

 Section 30. Surface elevation, 720 feet. Depth to stone, 51 feet. 



Soil and clay 18 feet. 



Sand and gravel 4 feet. 



Blue clay 29 feet. * 



Limestone 



In the northwest corner of Section 25 and leading far into Section 

 24, T. 10 N., R. 3 W., is an arm or extension of the Flatwoods basin, which 

 is filled very little. Sinks are very numerous, showing limestone in. many 

 places. The general elevation of this extension is 740 feet. 



Well No. 10. In the northwest part of Section 26, T. 10 N., R. 3 W., 

 at Frank Marshall's. Surface elevation, 725 feet. Depth to stone. 47 feet. 



Sandy clay soil 40 feet. 



Sand and gravel 4 feet. 



Soil 3 feet. 



Limestone 



