342 



GEOLOGY OF OHIO. 



Map of Kokosing Oil District. 



The record of No. 4 is not entirely reliable, and some uncertainty ex- 

 ists as to the depth at which the red shale was then struck, but all the 

 other borings indicate a dip to the north-east, and that the line joining 

 No. 8 and No. 2 is nearly on the line of the strike. 



The following is a copy of the- register of No. 1, on the south side of 

 the Kokosing, three hundred feet west of its junction with the Mohican, 

 supplemented at the bottom by the register of No. 2, five hundred feet 

 north of it, and on the opposite side of the stream. 



Specimens of the borings bearing the number on the right-hand col- 

 umn are deposited in the State Cabinet, at Columbus : 



No. of No. of 



strata. Material. Thiotness. Depth. Sample. 



1. Earth 10 



2. Coarse yellow sand-rock 7 17 1 



3. Fine sand-rock 2.. 19 2 



4. Drab " p 22 3 



5. Coarse " 1 ?3 4 



