| [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]. | Asiatic Deluge | 483 |
| [Diagram at End]—IdealSection of the Earth’s Crust, showing the order of superposition or chronological succession of the principal groups of strata. | |