COMMERCE, VAN METER AND DE SOTO SECTIONS. 



281 



VIII. Commerce Exposure.— S. E. qr. N. W. qr. Sec. 29, T. 78 lY., K. 25 W. 



6. Drift . . . . . . .25 feet. 



5. Clay-shales, passing into sandy shales . . . 20 " 



4. Buff sandstone, soft, thinly bedded . . . 15 '' 



3. Variegated clays . . . . . . 10 " 



2. Blue limestone, in three layers separated by partings of 



marl . . . . . . . 21 " 



1. White shales (^exposed to water level) . . . 1 " 



IX. Van Meter Bluff.— S. W. qr. N. E. qr. Sec. 26, T. 78 K, R. 27 W. 



14. Drift .... 



13. Light-colored shales, clayey 



12. Compact fossil iferous limestone 



11. Fissile bituminous shales, coaly below 



10. Light-colored clay-shales 



9. Brown sandstone, heavily bedded, and containing abun 

 dant roots of lepidodeudrids and fronds of ferns . 



8. Clavey shale, sandy above . 



7. Coal .... 



6. Variegated clays and shales 



5. Bituminous shales . 



4. Fragmentary limestone 



3. Blue and gray shales 



2, Bituminous shales, with concretionary layer above 



1. Blue clayey shales (exposed) 



X. De Soto Section.— N. W. qr. S. W. qr. Sec. 30, T. 78 K, R. 27 W. 



14. Drift 



13. Gray limestone, fossiliferous 



12. Variegated clay -shales .... 



11. Buff sandstone, soft, thinly bedded and shaly 



10. Blue clayey shale ..... 



9. Limestone, compact, fossiliferous . 



8. Highly bituminous shales, coaly below, with several cla 

 partings ...... 



7. Shaly sandstone, with highly ferruginous band above 



6. Sandstone, compact . . 



5. Shaly and clayey sandstone 



4. Coal 



3. Fire-clay ...... 



2. Fragmentary limestone, fossiliferous 



1. Light-colored clays (exposed) 



. 10 feet 



. 7 





. U 





. U 





. 4 





. 4 





. 6 





1 





2 





. 20 





. 2 





5 





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. 15 feet 



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