THE ALLEGHANY COAL FIELD. 105 



Feet. 



21. Iron Ore, 2 



22. Cparse Grit, 50 



23. Shales, red and calcareous, .... 50 



24. Shales, blue, 8 



25. Limestone, 6 



26. Shale, compact, 3 



27. Coal— McConnellsville, 250 feet above Muskin- 

 gum River, probably the Wheeling coal seam, 4-521 



28. Bituminous Shale, ------ 18 



29. Lime rock — several members, - - - - 40 



30. Calcareous Shales and Micaceous Sandstones, 20 



31. Coal, ---..... i^ 



32. Coarse Grit, with carbonaceous matter and peb- -600 

 bles, ----.-.. 60 



33. Sand rock, argillaceous, ----- 20 



34. Sandstone, fine grained, . . . . 25 



35. Shale, ocherous, 4 



36. Sandstone, micaceous, ----- 40 



37. Shale, red, 8 



38. Sandstone, slaty — mouth of Muskingum River 



and level of Lake Erie, 80-837 



The upper termination of my first section, at Symmes' 

 Creek, is several hundred feet below the Pomeroy coal bed, 

 which Dr. Hildreth traced to the Muskingum River, as No. 

 20 of this section. 



At Pomeroy there is a bed of coal one hundred and twenty- 

 three feet above that seam, which Dr. Hildreth traced across 

 the Muskingum into Monroe county, and which is No. 31 of 

 the above column, ninety-nine feet above the Pomeroy. 



The Virginia Geologists found in the coal series two bar- 

 ren spaces of several hundred feet in thickness, destitute of 

 coal seams, and composed principally of sandstone. These 

 barren grounds constitute their "upper and lower Sandstone 

 groups." 



Betw^een Steubenville and Wheeling lies the "lower 

 Sandstone group," in that direction, and on the lower side 



N 



