408 



Well No. IS. One-eighth mile southeast of No. 17, at Geo. Myers". 

 Surface elevation. S25 feet. Depth to stone, 25 feet, in seemingly the 

 residual limestone soil. 



Well No. 19. One-fourth mile southeast of No. 18, on high, rounded 

 hill, at Amos Barker's residence. Surface elevation, 860 feet. This well 

 encountered Chester sandstone- at a shallow depth. 



Well No. 20. One-fourth mile northeast of No. 19. Surface eleva- 

 tion, 825 feet. This well penetrates almost pure sand to a considerable 

 depth. 



Well No. 21. Middle of southeast J Section 3. T. 9 N., R. 3 W., at A. 

 Evans'. Surface elevation, ISO feet. Depth. 42 feet. 



Soil IS feet. 



Reddish sand (quicksand) 24 feet. 



Well No. 22. One-fourth mile south of No. 21, at C. R. Ellis's. Sur- 

 face elevation, 775 feet. Depth to stone, 51 feet. 



White to yellow soil IS feet. 



Water-worn gravel and sand 6 feet. 



Quicksand 27 feet. 



Limestone 92 feet. 



Well No. 23. Middle of northern one-half Section 10, one-half mile 

 south of No. 22, at the County Farm. Surface elevation, 765 feet. This 

 well penetrates soil and sand nearly fifty feet. 



Well No. 2',. Center of Section 23. T. 9 N., R. 2 W., at A. O. Collins'. 

 Surface elevation, 690 feet. Depth to stone, S8 feet. 



Red sand and clay 35 feet. 



Blue clay 53 feet. 



Limestone 1 foot. 



This completes the number of wells from which data was secured. 

 The reader can see at once that the greater number of them reveal the 

 fact that Flatwoods was in former times a basin much deeper than it is 

 now. It seems that the basin was rather deep at the northern part of 

 Section 6, as indicated by well No. 3. This deep portion extended north- 

 west, entering Section 36, and thence northward, but went northward for 

 only a short distance, along the present channel of McCormicks Creek, 

 until it turned westward as indicated by the shallow bed-rock in well No. 

 7. Wells No. S and No. 9 indicate that a tributary channel passed near 

 the southwest corner of Section 30. This channel probably entered the 



