i:n>\<>MI('AL (IKOLOCY. 51 



No. Ft. In. 



1. Drift clay and gravel (details not preserved) <_> 



2. Sandy shalo 20 



3. Limestone 1 



4. Fire clay 1 6 



">. (.iray slate -_>d 



ii. Sandy shale 40 



7. Limestone ;> 



8. Black shale 1 



!. C'.-.al No. 8 1 o 



H>. Fire clay 2 



11. Clay shale 4 



12. Gray shale (sandy) 60 



13. Conglomerate limestone 15 



14. Clay shale 2 



1.-.. Black slate ! 



li;. Coal 6 inches, fire clay 6 inches 1 



17. Black slate 10 inches, coal 4 inches 1 2 



18. Fireclay o $ 



1'.'. Reddish shale 10 



-andstone 30 



21. Sandy clay shale 30 



22. Black limestone g 



23. Coal No. 5 4 



24. Fire clay 4 



Total depth 351 10 



The Medora shaft is located on the west line of Macoupin 

 county, and readies the bottom of the coal measures. The fol- 

 lowing strata \vere passed through at that point. 



No. Ft. In. 



1. Black soil 4 



2. Yellow clay 20 



3. Blue clay 30 



4. Drift gravel 20 



5. Clay shale 10 



6. Shale 4 



7. Blue limestone 2 



8. Black slate 3 



9. Coal 5 



1". Fire clay 4 



11. Gray slate 5 



12. Sandstone 5 



13. Clay shale 5 



14. Shale 5 



15. Black slate 3 



1C. Coal 1 



17. Fire clay 4 



18. Red clay shale 8 



ly. Sandstone 8 



20. Limestone 2 



21. Nodular clay 5 



22. Clay shale 5 



23. Clod?... 1 



