| Chapter VI. Instinct And Discernment | 10442 |
| Chapter VII. Economy of Energy | 7873 |
| Chapter IX. The Cotton-Bees | 12939 |
| Chapter X. The Resin-Bees | 7237 |
| Chapter XI. The Poison of The Bee | 9300 |
| Chapter XIII. The Halicti: the Portress | 8295 |
| Chapter II. Experiments | 7457 |
| Chapter V. The Story of My Cats | 7074 |
| Chapter VI. The Red Ants | 11177 |
| Chapter VII. Some Reflections Upon Insect Psychology | 8886 |
| Chapter II. The Pine Processsionary: The Nest; The Community | 15494 |
| Chapter III. The Pine Processionary: The Procession | 18828 |
| Chapter IV. The Pine Processionary: Meteoroogy | 9644 |
| Chapter VI. The Narbonne Lycosa: the Climbing-Instinct | 10016 |
| Chapter VII. The Spiders' Exodus | 9023 |
| Chapter I. The Harmas | 7090 |
| Chapter II. The Green Grasshopper | 19753 |
| Chapter III. The Empusa | 7956 |
| Chapter IV. The Capricorne | 6481 |
| Chapter V. The Burying Beetle: The Burying | 16158 |
| Chapter VI. The Burying Beetles: Experiments | 6385 |
| Chapter VII. The Bluebottle | 9940 |
| Chapter VIII. The Pine Processionary | 7461 |
| Chapter IX. The Spiders. The Narbonne Lycosa, or Black-Bellied Tarantula. The Burrow. | 7559 |
| Chapter X. The banded Epeira. Building the Web. | 7800 |
| Chapter XI. The Eumenes | 9399 |
| Chapter XII. The Osmiae. Their Habits | 5743 |
| Chapter XIII. The Glow-Worm | 14714 |
| Chapter XIV. The Cabbage Caterpillar | 11850 |
| Making a Bug Home | 15081 |