TABLE OF CONTENTS. xix 

 REPORT ON THE LEAD REGION. 



Pnga 



1. General section of Platte River Valley, - - C.')7 



2. Sketch of the upper part of the Blue Mounds, - 669 



3. Sketch of the Platte Mounds, - - B61 



4. Sketch of a Terraced Hill near Lumberville, 669 



5. Section of Calcareous and Arenaceous Shales at Grant River, 673 



6. Section of Curved Strata at Grant River, 674 



7. Sketch of Lower Magnesian Limestone at Welsh MiU, - 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, 69S 



14. Section of Meredith Mine, 699 



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



16. Section of an Opening in the WiUiams Mine ... 70.3 



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



18. Section of the Barton Opening, ... 713 



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 WiUiams' Diggings, '- - - 730 



