TABLE OF CONTEXTS. xix 

 REPORT ON THE LEAD REGION. 



.Page 



1. General section of Platte River Valley, - 6->7 



2. Sketch of the upper part of the Blue Mounds, - 659 



3. Sketch cf the Platte Mounds, - - 661 



4. Sketch of a Terraced Hill near Lumberville, 669 



5. Section of Calcareous and Arenaoeous Shales at Grant River, - 678 



6. Section of Curved Strata at Grant River, - 674 



7. Sketch of Lower Magnesian Limestone at Welsh Mill, - 674 



8. Sketch of a Hill in the Town of Mt. Pleasant, - 676 



9. Upheaval of St. Peters Sandstone at Red Rock, - 678 



10. Section from Scale's Mound to the State Line. - 686 



11. Section of Openings (ideal), - 690 



12. Plan of Workings in the Beetown Mine, - 696 



13. Junction of E. and W. Veins with a Quartering Range, Adkinson Diggings, 698 



14. Section of Meredith Mine, - 699 



15. Section of Vein, Black & Co.'s Diggings, - 703 



16. Section of an Opening in the Williams Mine - 703 



17. Vein-stone Breccia, Stopline Diggings, - 714 



18. Section of the Barton Opening, - 718 



19. Section showing Connection of Flat and Pitching Sheets, Linden Mine - 728 



20. Section of Sheets in the Road Mine, 728 



21. Plan of Evan Williams' Diggings, - - 730 



