SILURIAN AND DEVONIAN LIMESTONES OF 

 WESTERN TENNESSEE. 



CONTENTS. 



A. Silurian Strata along the Western Flank of the Cincinnati 



Geanticline. 



1. In southern Indiana, Kentucky, and northern Tennessee. 



2. Centreville, Riverside, and Iron City, Tennessee. 



B. Silurian Strata in the Tennessee River Valley. 



I. Clinton, Osgood, Laurel, and Waldron beds. 



3. New Era, Glenkirk, Clifton, Swallow Bluff, Maddox Mill, Waynes- 

 boro. 



II. Lego and Dixon beds. 



4. Nomenclature. 



5. New Era, Glenkirk, Clifton, Cerro Gordo, Paulks, Sulphur Spring, 

 Martin's mill. Rise mill, Pegram. 



6. West of the Tennessee River. 



III. Brownsport bed. 



7. Eastern line of outcrop. 



8. Perryville, Linden, Lego, New Era, Clifton, Cerro Gordo, Browns- 

 port. 



9. Dixon Spring; localities visited by Roemer. 



10. Bath Springs; Colonel Smith, four miles east of Economy; Gant 

 Place. 



C. Devonian Strata in the Tennessee River Valley. 



11. The Linden bed; Perryville, Linden, Horse Creek, Pyburn Bluff, 

 White Sulphur Spring. 



12. The Camden chert; Linden, Bakerville. 



13. The Onondaga limestone; Bakerville, Pegram. 



14. The Devonian black shale series; the Hardin sandstone, the 

 Chattanooga black shale, the nodule layer. 



D. Silurian and Devonian Strata of the Wells Creek Basin. 



E. The Equivalence of the Clifton, Linden, and Camden Lime- 



stones TO Other Beds. 



F. The Coffee Sand. 



G. The Iron-ore Gravels. 



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