| chapter | page |
| I. | Digging with Dynamite | [9] |
| II. | Measuring Electricity | [22] |
| III. | The Fuel of the Future | [42] |
| IV. | Some Valuable Electrical Processes | [55] |
| V. | Machine-made Cold | [67] |
| VI. | Scientific Inventions at Sea | [78] |
| VII. | The Gyro-Compass | [90] |
| VIII. | Torpedoes and Submarine Mines | [98] |
| IX. | Gold Recovery | [109] |
| X. | Intense Heat | [123] |
| XI. | An Artificial Coal Mine | [137] |
| XII. | The Most Striking Invention of Recent Times | [149] |
| XIII. | How Pictures can be sent by Wire | [176] |
| XIV. | A Wonderful Example of Science and Skill | [191] |
| XV. | Scientific Testing and Measuring | [198] |
| XVI. | Colour Photography | [212] |
| XVII. | How Science aids the Stricken Collier | [220] |
| XVIII. | How Science helps to keep us well | [231] |
| XIX. | Modern Artillery | [236] |
| | Appendix | [245] |
| | Index | [247] |