IOWA ACADEMY OF SCIENCES. 35 



will show the main evidence relied upon to estal)lish the identity of the 

 seam, though much confirmatory material could be added from the nature 

 of the coal and the general geological and topographical relations of the 

 region: 



{ 1.) Section measured as exposed along Walnut Creek at Mystic, in the 

 north central part of Appanoose county: 



7. Limestone, massive, grey (seen in Lone Star drift) 



6. Shale, bituminous 



5. Coal 



4. Fireclay 



3. Ooal 



2. Fireclay 



1. Limestone 



{ 3.) Section as seen in a mine at Seymour, Wayne county, at a depth of 

 242 feet: 



FEET. INCHES. 



Limestone "Caprock" 2 



Shale, bituminous 1 6 



Coal 1 6 



Clay 2 



('oal 1 



Fireclay 1 2 



Limestone bed-roclv , 



(3.) Section examined in a mine at Centerville, Appanoose county, at a 

 depth of 150 feet: 



FEET. INCHES. 



7. Limestone 



6. Shale, black 1 



5. Coal 1 5 



4. Fireclay 3 



3. Coal 1 2 



2. Fireclay 1 g 



1. Limestone 



(4.) Section at Blackbird Coal Company's shaft, two miles north of 

 Unionville, Putman county, Missouri: 



FEET. INCHES. 



7. Limestone, hard gray 3 



» i Clayey gray sliales (Clod) 6-8 



^- '1 Black fissile shale 1 



5. Coal 1 8-10 



4. Clay parting I.3 



3. Coal 



2. Clay 3 



1. Limestone 



(5.) Section of coal bed at Stahl, Adair county, Missouri:* 



FEET. INCHES. 



7. Limestone 1 10-12 



P JClay(Clod) 0.3 



"• I Black fissile shale 1 ti'^'o 



5. Coal 2 



4. Clay partings j.3 



(Coal 1 



3. ^Clay ■.■.■.■.■;.■.■.■. 1-0 



Icoal \.o 



2- Clay 1 4_; 



1. "Bottom Rock" 1 g 



* Sections IV and V taken from Missouri Geol. Sur.. Prelim. Rep. on Coal, pp.56 

 and 61 Jefferson City, 1891. 



10-12 



