LIST OF ILLUSTRATIONS. 



XXV 



Plate 



12. 



13. 



14. 



15, 



15 bis, 

 16, 



16 his. 



17, 

 18. 

 19, 

 20, 

 21, 

 22. 

 23, 

 24, 

 25. 

 26. 

 27- 



Page 



Shells of the Wenlock Limestone 622 



Shells of the Wenlock Shale . . . 628 



Trilobites of the Wenlock Formation 655 



Corals of the Silurian System 



675 



i 



Encrinites 6 70 



• Shells of the Caradoc and Llandeilo Formations (Lower Silurian) 634 



| Trilobites of the Lower Silurian Rocks 659 



Miscellanea and non-descripts, from the various Silurian Rocks 696 



Annelids, or Sea- worms of the Upper Cambrian Rocks 699 



(In all 31 Plates of Fossils.) 



PLATES OF COLOURED SECTIONS ILLUSTRATIVE OF PART I., 



Inserted at the end of Part II. 



29. Sections illustrating the relations of the Strata in Gloucestershire, Worcestershire, and 



Shropshire, chiefly those of the Lias, New Red Sandstone, and Coal Measures, seven- 

 teen figures 713 



30. Sections of Coal-fields and Carboniferous Limestone, &c, in Shropshire (Clee Hills, Os- 



westry, &c), fourteen figures 705 



31. Old Red Sandstone and Silurian Rocks, chiefly Upper Silurian, in Salop and Brecknock- 



shire, nine figures 717 



32. Silurian Rocks, and Cambrian Rocks with trap and altered Rocks and Mines, in Salop 



and Montgomery, nine figures 718 



33. Silurian, Cambrian, and Trap Rocks, &c. in Radnorshire, seven figures 719 



34. Caermarthenshire Sections, eleven figures 720 



35. Pembrokeshire Sections, eleven figures 721 



36. Sections in the Abberley and Malvern Hills, valley of Woolhope, May Hill, Tortworth, 



Usk, and Chepstow, twenty-four figures 723 



37. Sections across the Dudley and adjoining Coal-fields, Lickey Hills, &c, nine figures . . 725 



