754 GEOLOGY OF OHIO. 



FT. IH. 



20. Sandstone 25 



21. Concealed 20 



-22. Coal'(on opposite side of valley) 1 



28. Shale " " 20 



S4. Coal .' 8 



35. Olive shale- (to creefc) 10 



26. Shale, conoretiouary (to welbhead) 6 



>}7. "Fire- clay" and shale in well — ..-.. 10 6 



28. Coal No. 7(f) " ..-- 3 



29. Fire-clay " 5 



30. Shale " .- .. 7 6 



31. Sandstone " -— .-- 29 



32. "FlintTOck*' " 1 



33. Sandstone " - 18 



34. "Blaokslate" " .- -2 



35. Coal " 4 



36. "Bine clay" " 2 



37. 'Limestone " 1 



38. Gray-shale " 16 



39. Blackshale " ^3 



40. " Coal, cannel'\(t) " 4 



41. Blueshale " ...... ■. '4 



42. Sandstone " .". 28 



43. "Blue flint" " ,. 1 6 



44. Sandstone " 7 6 



45. Blackshale " ..". -.,..,.,. 10 



46. Coal " 5 6 



47. Blueshale " 43 6 



In the above section the coal midway of the Barren Measures lis prob- 

 ably the Harlem seam, or 76. It will be noticed that there are frwo thin 

 coals below this a few feet above the creek, then a seam three feet thick 

 near the creek level. Sixty-two and a half feet below this is another 

 coal four feet thick, with a foot of limestone just beneath the fire-clay. 

 Forty-one feet below this again is a coal reported to be cannel, four feet 

 thick, and fifty-seven feet below the '^ cannel coal" another seam five and 

 ©ne-half feet thick is said to have been passed thromgh. When we compare 

 this Wills Creek section with those afforded by the shafts and "test 

 well" at Steubenville, we find the task of co-ordinating them quite easy. 

 The limestone coal (No. 35 of the Wills Creek section) is plainly the 

 Shaft Coal of Steubenville. It is exposed in the bed of the Ohio, just 

 above the mouth of Wills Creek ^ is reached at the depth of 75 feet in 

 the shaft of Cable & Co. ; at 80 feet in the Bueted Shaft ; at 172 feet in 

 the boring in Stony Hollow; at 188 feet in the Rolling Mill Shaft; 204 

 feet in Averick's Shaft; at 221 feet in Boreland's Shaft, and at 234 feet 



