172 GEOLOGY OF OHIO. 



10. Blue and gray shale, with nodules of iron ore at base 40 to 60 



11. C oal N o . 5 '-ii 



12. Fire-clay ^ to .'i 



13. Sandstone and shale, with iron at liase ^ 40 to 60 



14. Limestone, sometimes changed to black calcareous shale 1 to .'' 



15. CoalNo.4 ^ to 7 



16. Fire-clay - 2 to 6 



17. .Shale and sandstone to Sandy Creek. 



At the Trumbull Companj''s mines, near Magnolia, the exposures above 

 drainage and borings give the following section : 



FT. IS. 



1. Shale, with iron ore 40 



2. Coal No. .5 (worked) 3^-4 



3. Fire-clay 3 



4. Sandyshale " 



5. S,i:i(lroek 43 



6. Shale 8 



7. LinicMtune 2 



H. Shale - 1 



•.}. Cr.al - 3-5 



10. Fiie-clay 4 



11. Shale, with iron ore 23 6 



1'--. LiiecHlone 2 4 



13. Coal 1 10 



14. Fire-clay 1 



15. Gray shale 16 



16. Shale, sandstone, and fire-clay '27 6 



The registers of other borings made in this vicinity are given in the 

 repo-t of Prof Stevenson on the geology of Carroll county. 



In Nimishillen and Washington townships, as the land is high. Coal 

 No. 5 is generally buried beneath the surface. In Lexington township, 

 however, on the north side of the divide, the tributaries of the Mahoning 

 have openpJ the lower coals freely, and at Alliance Coal No. .5 lies ten 

 feet below the station (five hundred feet above Lake Erie), and is worked 

 in a shaft thirty-one feet deep, in the western part of the village. The 

 coal is liere three and a half to four feet in thickness, of fairly good 

 quality, but, from the want of cover, rather soft, and contains. con-idiT- 

 able sulphur. The roof is black shale, with iroi^ ore, as in so many local- 

 ities in Stark a.,d Tuscarawas counti^-s. 



The section at Alliance is carried down far below the surface bj- the 

 shaft of the Alliance Coal Company. Combining the outcrops 'and sec- 

 tions of the two shafts, we have the following geological column; 



m'. IN. 



1. Coal at Walter's and Black's mines, (vn road to Mt. Union )ii-S 



2. I''irc-c.l;iy ■> 



3. Blni>, and yellow, and black shale, wilh iron (u-e at bottom 3S 



