| Frontispiece—The First Man. |
| PAGE |
| I. | De Sancy Peak, Mont Dore | 42 |
| II. | Basaltic Mountain of La Coupe d’Ayzac | 46 |
| III. | Extinct Volcanoes of Le Puy | 52 |
| IV. | Mud Volcano of Turbaco | 62 |
| V. | Great Geyser of Iceland | 66 |
| VI. | The Earth in a gaseous state circulating in space | 82 |
| VII. | Condensation and rainfall | 94 |
| VIII. | Ideal Landscape of the Silurian Period | 104 |
| IX. | Ideal Landscape of the Devonian Period | 121 |
| X. | Ideal view of marine life in the Carboniferous Period | 147 |
| XI. | Ideal view of a marshy forest in the Coal Period | 156 |
| XII. | Ideal Landscape of the Permian Period | 172 |
| XIII. | Ideal Landscape of the Muschelkalk Period | 191 |
| XIV. | Ideal Landscape of the Saliferous or Keuper Period | 198 |
| XV. | Ideal Scene of the Lias Period with Ichthyosaurus and Plesiosaurus | 231 |
| XVI. | Ideal Landscape of the Liassic Period | 241 |
| XVII. | Ideal Landscape of the Lower Oolite Period | 254 |
| XVIII. | Ideal Landscape of the Middle Oolite Period | 258 |
| XIX. | Apiocrinites rotundus and Encrinus liliiformis | 261 |
| XX. | Ideal Landscape of the Upper Oolite Period | 267 |
| XXI. | Ideal Scene of the Lower Cretaceous Period | 296 |
| XXII. | Ideal Landscape of the Cretaceous Period | 307 |
| XXIII. | Ideal Landscape of the Eocene Period | 328 |
| XXIV. | Ideal Landscape of the Miocene Period | 352 |
| XXV. | Ideal Landscape of the Pliocene Period | 375 |
| XXVI. | Skeleton of the Mammoth in the St. Petersburg Museum | 394 |
| XXVII. | Skeleton of Megatherium | 403 |
| XXVIII. | Ideal View of the Quaternary Epoch—Europe | 416 |
| XXIX. | Ideal Landscape of the Quaternary Epoch—America | 419 |
| XXX. | Deluge of the North of Europe | 425 |
| XXXI. | Glaciers of Switzerland | 445 |
| XXXII. | Appearance of Man | 468 |
| XXXIII. | |
