| Chapter VI. Instinct And Discernment | 9142 |
| Chapter VII. Economy of Energy | 6879 |
| Chapter IX. The Cotton-Bees | 10360 |
| Chapter X. The Resin-Bees | 6083 |
| Chapter XI. The Poison of The Bee | 8177 |
| Chapter XIII. The Halicti: the Portress | 7305 |
| Chapter II. Experiments | 6106 |
| Chapter V. The Story of My Cats | 6158 |
| Chapter VI. The Red Ants | 9086 |
| Chapter VII. Some Reflections Upon Insect Psychology | 7778 |
| Chapter II. The Pine Processsionary: The Nest; The Community | 13276 |
| Chapter III. The Pine Processionary: The Procession | 15127 |
| Chapter IV. The Pine Processionary: Meteoroogy | 8392 |
| Chapter VI. The Narbonne Lycosa: the Climbing-Instinct | 9073 |
| Chapter VII. The Spiders' Exodus | 7975 |
| Chapter I. The Harmas | 5885 |
| Chapter II. The Green Grasshopper | 18626 |
| Chapter III. The Empusa | 6780 |
| Chapter IV. The Capricorne | 5601 |
| Chapter V. The Burying Beetle: The Burying | 15016 |
| Chapter VI. The Burying Beetles: Experiments | 5201 |
| Chapter VII. The Bluebottle | 9035 |
| Chapter VIII. The Pine Processionary | 6530 |
| Chapter IX. The Spiders. The Narbonne Lycosa, or Black-Bellied Tarantula. The Burrow. | 6056 |
| Chapter X. The banded Epeira. Building the Web. | 6865 |
| Chapter XI. The Eumenes | 8066 |
| Chapter XII. The Osmiae. Their Habits | 4933 |
| Chapter XIII. The Glow-Worm | 13589 |
| Chapter XIV. The Cabbage Caterpillar | 10848 |
| Making a Bug Home | 13788 |