| PART I. THE EARTH |
| PAGE |
| The Great Stone Book | [3] |
| The Fossil Fish | [6] |
| The Crust of the Earth | [9] |
| What Is the Earth Made of? | [14] |
| The First Dry Land | [22] |
| A Study of Granite | [27] |
| Metamorphic Rocks | [31] |
| The Air in Motion | [35] |
| The Work of the Wind | [44] |
| Rain in Summer, by Henry W. Longfellow | [50] |
| What Becomes of the Rain? | [51] |
| The Soil in Fields and Gardens | [58] |
| The Work of Earthworms | [63] |
| Quiet Forces That Destroy Rocks | [68] |
| How Rocks Are Made | [72] |
| Getting Acquainted With a River | [78] |
| The Ways of Rivers | [84] |
| The Story of a Pond | [90] |
| The Riddle of the Lost Rocks | [93] |
| The Question Answered | [96] |
| Glaciers Among the Alps | [98] |
| The Great Ice Sheet | [104] |
| Following Some Lost Rivers | [110] |
| The Mammoth Cave of Kentucky | [114] |
| Land Building by Rivers | [121] |
| The Making of Mountains | [126] |
| The Lava Flood of the Northwest | [130] |
| The First Living Things | [134] |
| An Ancient Beach at Ebb Tide | [138] |
| The Lime Rocks | [147] |
| The Age of Fishes | [152] |
| King Coal | [155] |
| How Coal Was Made | [160] |
| The Most Useful Metal | [167] |
| The Age of Reptiles | [175] |
| The Age of Mammals | [180] |
| The Horse and His Ancestors | [186] |
| The Age of Man | [194] |
| PART II. THE SKY |
| Every Family a "Star Club" | [201] |
| The Dippers and the Pole Star | [207] |
| Constellations You Can Always See | [213] |
| Winter Constellations | [219] |
| Orion, His Dogs, and the Bull | [223] |
| Seven Famous Constellations | [231] |
| The Twenty Brightest Stars | [239] |
| How to Learn More | [241] |