520 CARBONIFEROUS ROCKS IN CUMB. CO. — LOGAN & FLETCHER. 



Ft. In. 



10. Greenish and rasty nut-and-e2:g conglomerate; passes 



partly into sandstone 10 



11. Rusty and greenish-gray pebbly sandstone,' irregu- 



larly bedded 10 



12. Red marl or argillaceous shale not well exposed .... 23 



13. Reddish-gray and gray arenaceous shale and flaggy 



sandstone 3 6 



14. Gray fine sandstone. Possibly ISTo. 51 of Section TV. 5 



15. Greenish-gray arenaceous shale, passing in part into 



red argillaceous shale 1 



16. Gray and misty fine sandstone with a few small 



pebbly patches at the bottom 10 



17. Greenish-gray conglomerate ; passes into pebbly 



sandstone 3 



18. Greenish-gray pebbly sandstone 4 



19. Greenish-gray and reddish argillaceous shale 4 



20. Gray fine sandstone with coal-pipes, very irregularly 



bedded towards the top 12 6 



21. Greenish and reddish argillaceous shale in alternate 



layers with harder flags 6 



22. Greenish argillaceous shale and fine sandstone 4 



23. Rusty-gray pebbly sandstone in irregular beds ; coal- 



pipes and lenticular layers of argillaceous shale. . . 25 



24. Red argillaceous shale 7 



25. Reddish-gray argillaceous sandstone 3 G 



26. Red marl with a few greenish streaks 9 



27. Rusty-gray pebbly sandstone; many fossil plants in 



some layers 10 



28. Greenish-gray argillaceous shale 1 G 



29. Rusty-gray pebbly sandstone as above 11 



30. Red argillaceous shale and -flags with greenish 



blotches at the bottom 9 



31. Greenish and gray argillaceous sandstone in one 



layer 1 



