LECTURE IV. 



Part II. 



i. Geology of the South-east of England. 2. Geological phenomena between 

 London and Brighton. 3. London and Brighton Railway Sections. 4. The 

 Wealden Formation. 5. Wealdenof the Sussex coast. 6. Pounceford. 7. Tilgate 

 Forest. 8. Ripple-marks on Wealden sandstone. 9. Subdivisions and extent of 

 the Wealden. 10. Wealden of the North of Germany. 11. Wealden of the Isle 

 of Wight. 12. Fossil Trees at Brook Point. 13. Wealden of the Isle of Purbeck. 

 14. Coves in the S. W. of Purbeck. 15. The Isle of Portland. 16. Fetrified 

 Forest of the Isle of Portland. 17. Mantelliae. 18. Dirt-bed cf the Isle of 

 Purbeck. 19. Organic Remains of the Wealden. 20. Fossil Vegetables. 

 21. Fossil Cycadeous Plants. 22. Clalhraria Lyellii. 23. Fruits of Coniferous 

 Trees. 24. Univalve Shells of the Wealden. 25. Bivalve Shells of the Wealden. 

 26. Crustaceans of the Wealden. 27. Wealden Insects. 28. Wealden Fishes. 

 29. Reptiles of the Wealden. 30. Fossil Turtles. 31. Marine Reptiles. 32. Cro- 

 codilian Reptiles. 33. Fossil Teeth of Crocodiles. 34. Fossil Crocodile of 

 Swanage. 35. The Dinosaurians. 36. Megalosaurus. 37. Iguanodon. 38. Teeth 

 of the Iguanodon. 39. The Maidstone Iguanodon. 40. Vertebrae of the Igua- 

 nodon. 41. Bones of the extremities. 42. Magnitude and proportions of the 

 Iguanodon. 43. The Hylaeosaurus. 44. Pterodactyles of the Wealden. 45. 

 Birds of the Wealden. 46. The Country of the Iguanodon. 47. Sequence of 

 Geological changes. 48. Retrospect. 



1. Geology of the south-east of England. — From 

 this survey of the marine formation of the Chalk, we turn 

 to the remarkable fluviatile deposits, of which the basin of 

 the cretaceous ocean, in the south east of England, was 

 composed ; in other countries, as I shall hereafter have 

 occasion to remark, that ocean-bed was formed of the Oolite 

 and other more ancient rocks. It will now be necessary to 

 offer a few observations on the geology of the district in 

 which the Wealden is so largely developed. 



