LECTURE III. 



1. Introductory. 2. Mineral composition of Rocks. 3. Crystallization. 4. Stra- 

 tification. 5. Displaced Strata. 6. Veins and Faults. 7. Chronological 

 Synopsis of the Strata. 8. Geology of England. 9. Alluvium and Drift of the 

 Modern Epoch. 10. Erratic Boulders. 11. Tertiary Formations. 12. Classifi- 

 cation of the Tertiary. 13. Fossil Shells. 14. Lithological Characters of the 

 Tertiary. 15. Subdivisions of the Tertiary System. 16. Pliocene Deposits. 

 17. Miocene; the Crag. 18. Eocene, or Lower Tertiary. 19. The Paris Basin. 

 20. The London Basin. 21. The Isle of Sheppey. 22. Bagshot Sand. 23. Phe- 

 nomena of Springs. 24. Artesian Wells. 25. The Hampshire Basin. 26. Alum 

 Bay. 27. London Clay of Hampshire. 28. Freshwater Tertiary of the Isle of 

 Wight. 29. Organic Remains of the Eocene Strata. 30. Amber. 31. Zoophytes 

 of the Tertiary. 32. Shells of the Tertiary. 33. Fossil Nautilus. 34. Nummu- 

 lites. 35. Rotaliee. 36. Crustaceans and Fishes. 37. Tertiary Reptiles. 

 38. Tertiary Birds. 39. Fossil Mammalia of Paris. 40. Palaeotheria and Ano- 

 plotheria. 41. Fossil Monkeys. 42. Tertiary Deposits of Aix. 43. Fossil 

 Insects. 44. Fossil Fox of (Eningen. 45. Fossil Fishes of Monte Bolca. 46. 

 Tertiary Volcanoes of France. 47. Extinct Volcanoes of Auvergne. 48. Crater 

 of the Puy de Come. 49. Mont Dore. 50. Lacustrine Strata of Auvergne. 

 51. Successive Epochs of Mammalia. 52. Survey of Geological Phenomena. 

 53. Excavation of Valleys by running Water. 54. Extinct Volcanoes of the 

 Rhine. 55. Brown Coal Deposits; the Loess. 56. Tertiary of Europe and 

 North America. 57. Altered Tertiary of the Andes. 58. Saliferous Deposits. 

 59. Retrospect. 60. Concluding Remarks. 



]. Introductory. — Although it is my object in these 

 Lectures to present a general view of the philosophy of 

 Geology, and render the examination of geological pheno- 

 mena subservient to an exposition of the laws which the 

 Divine Author of all things has established for the reno- 

 vation, maintenance, and government of the organic and 

 inorganic kingdoms of Nature, I must enter somewhat in 

 detail on the nature and distribution of the materials of 

 which the crust of the earth is composed. For based 

 as Geology is upon observations of the various physical 

 changes which are now taking place on the surface of 



