The Oolite System.—Period of Gigantic Reptiles, 183 CHAPTER IV. The Wealden Formation—Remarkable Fossils of, 198 CHAPTER V. The Cretaceous System.—General Reflections, 206 CHAPTER VI. The Tertiary System—Eocene and Miocene Formations of.—London Basin, 216 CHAPTER VII. The Mammoth Period.—Remains of, on Banks of Missouri.—Concluding Remarks, 229 PART III. FRANCE AND SWITZERLAND. CHAPTER I. Physical Union of France with England.—Basins of Paris and the Loire.—Volcanic District of Central France—Auvergne, 241 CHAPTER II. Geological Structure of Switzerland—The Alps—Mont Blanc—Bowlder Formation—Glaciers, 265 CHAPTER III. Thickness of the Earth’s Crust.—Central Heat—Theories of, 279 PART IV. GENERAL PRINCIPLES. CHAPTER I. Résumé, 286 CHAPTER II. Theories of Organic Life—“Vestiges of the Natural History of Creation,” 293 CHAPTER III. Analogical Order—Physical and Moral—of Progression, 311 CHAPTER IV. The Extinction of Organic Life, 320 CHAPTER V. Time, and the Geological Epochs, 328 CHAPTER VI. The Mosaic Account of Creation—Geology, how reconcilable with, 348 CONCLUSION. THE CREATOR, 366 Glossary, 377 THE COURSE OF CREATION. GEOLOGY OF SCOTLAND. PART I. CHAPTER I. INTRODUCTORY.