MUSKINGUM COUNTY. 239 



FT. IN. 



17. Fire-clay 2 



18. Sandstone 50-70 ,0 



19. Shale 10-25 



20. Coal No. 6 2i-4l 



21. Shale and clay 25 



22. Sandstone 30 



23. Coal No. 5 4 to 4 



24. Shale and sandstone 55 



25. Iron ore , 3 



26. Limestone 1-3 



27. Coal No. 4 4 to 7 



28. Fire-clay 1 1 



39. Sandstone and shale 20 



30. Limestone, flint, or iron ore 2-3 



31. Coal No. 3a 2 to 10 



32. Sandstone 10 



33. Limestone 1 



34. CoalNo.3 1 



35. Fire-clay 6 



36. Sandstone 75 



37. Coal No. 2 2i to 4 



38. Shale and sandstone , 45-50 



39. CoalNo.l 1-4 



40. Shale 40 



41. Iron ore 2 



42. Shale 5-10 



43. Conglomerate 28 



44. Waverly rocks 102 



The dip is somewhat irregular. In the north-western portion of the 

 county, especially in Jackson township, it is quite sharp to the north- 

 east, but before reaching the Muskingum River it changes to south-east. 

 Along a line running south-west from near Johnson's Mills, in Monroe 

 township, to near Sonora, in Perry township, the dip is reversed, and is 

 north-westward until a line is reached passing east of north and south of 

 west through a point about one-half mile east of Norwich, in Union 

 township. There it again becomes south-eastward, and so continues 

 until another line is reached passing just east of New Concord in a north- 

 east and south-west direction, where the dip is once more reversed, and 

 so continues almost to Cambridge, in Guernsey county. The anticlinal 

 passing east of Norwich is regarded as a spur of the main anticlinal 

 passing through Guernsey county, and described in the report on that 

 county. The Norwich anticlinal is somewhat interesting, in that its 

 eastern slope is much more abrupt than its western, the dip per mile 

 being almost three times as great. 



