TENNESSEE. 



199 



(Continued in Georgia.) 



8. Within a few miles of these Stations, are ridges and knobs made up of dark shales of Cincin- 

 nati or Nashville age. At Johnson's a point of one of these ridges is very near the Station. 



9. The high mountains so conspicuous from the depot at Greenville are made up of 2 b. Chil- 

 howee (Potsdam) sandstone and of 2 a. Ocoee slates and conglomerates. 



10. Veins of zinc ore are found at this point in the 3 c. Knox dolomite. 



11. The high portion of the city on the former, the Depot on the latter. Shales of Nashville just 

 west of Depot. On the side of the Holston River opposite Knoxville high knobs covered with deep 

 red soil are conspicuous, which are made up in good part of a dark ferruginous limestone called 

 Iron Limestone, and belonging to the 4 b. Nashville (Cincinnati) group. 



12. About one mile east of Ooltawah the Railroad passes through a gap of the White Oak 

 Mountains, in which is an interesting section embracing 4 b. Nashville, 5 a. Niagara, Devonian 

 (10 c. Black Shale) and 13 eub-carboniferous rocks. 



