| Page | |
|---|---|
| Luminous Spiral Clouds of Matter | 2 |
| Nebula seen Edge-on | 3 |
| The Great Spiral Nebula | 6 |
| A Dark Nebula | 7 |
| Another Spiral Nebula | 8 |
| Landscape before Life | 9 |
| Marine Life in the Cambrian Period | 12 |
| Fossil Trilobite | 13 |
| Early Palæozoic Fossils of various Species of Lingula | 14 |
| Fossilized Footprints of a Labyrinthodont, Cheirotherium | 15 |
| Pterichthys Milleri | 17 |
| Fossil of Cladoselache | 18 |
| Sharks and Ganoids of the Devonian Period | 19 |
| A Carboniferous Swamp | 22 |
| Skull of a Labyrinthodont, Capitosaurus | 23 |
| Skeleton of a Labyrinthodont: The Eryops | 24 |
| A Fossil Ichthyosaurus | 27 |
| A Pterodactyl | 28 |
| The Diplodocus | 29 |
| Fossil of Archeopteryx | 32 |
| Hesperornis in its Native Seas | 33 |
| The Ki-wi | 34 |
| Slab of Marl Rich in Cainozoic Fossils | 35 |
| Titanotherium Robustum | 38 |
Table of Contents
LIST OF ILLUSTRATIONS
7