| Chapter VI. Instinct And Discernment | 10529 |
| Chapter VII. Economy of Energy | 7929 |
| Chapter IX. The Cotton-Bees | 13012 |
| Chapter X. The Resin-Bees | 7281 |
| Chapter XI. The Poison of The Bee | 9350 |
| Chapter XIII. The Halicti: the Portress | 8330 |
| Chapter II. Experiments | 7527 |
| Chapter V. The Story of My Cats | 7103 |
| Chapter VI. The Red Ants | 11322 |
| Chapter VII. Some Reflections Upon Insect Psychology | 8942 |
| Chapter II. The Pine Processsionary: The Nest; The Community | 15552 |
| Chapter III. The Pine Processionary: The Procession | 19384 |
| Chapter IV. The Pine Processionary: Meteoroogy | 9704 |
| Chapter VI. The Narbonne Lycosa: the Climbing-Instinct | 10057 |
| Chapter VII. The Spiders' Exodus | 9072 |
| Chapter I. The Harmas | 7145 |
| Chapter II. The Green Grasshopper | 19884 |
| Chapter III. The Empusa | 8022 |
| Chapter IV. The Capricorne | 6510 |
| Chapter V. The Burying Beetle: The Burying | 16220 |
| Chapter VI. The Burying Beetles: Experiments | 6415 |
| Chapter VII. The Bluebottle | 9977 |
| Chapter VIII. The Pine Processionary | 7527 |
| Chapter IX. The Spiders. The Narbonne Lycosa, or Black-Bellied Tarantula. The Burrow. | 7657 |
| Chapter X. The banded Epeira. Building the Web. | 7830 |
| Chapter XI. The Eumenes | 9468 |
| Chapter XII. The Osmiae. Their Habits | 5781 |
| Chapter XIII. The Glow-Worm | 14769 |
| Chapter XIV. The Cabbage Caterpillar | 11924 |
| Making a Bug Home | 15133 |