| Chapter VI. Instinct And Discernment | 10326 |
| Chapter VII. Economy of Energy | 7803 |
| Chapter IX. The Cotton-Bees | 12722 |
| Chapter X. The Resin-Bees | 7140 |
| Chapter XI. The Poison of The Bee | 9201 |
| Chapter XIII. The Halicti: the Portress | 8229 |
| Chapter II. Experiments | 7313 |
| Chapter V. The Story of My Cats | 7009 |
| Chapter VI. The Red Ants | 10910 |
| Chapter VII. Some Reflections Upon Insect Psychology | 8809 |
| Chapter II. The Pine Processsionary: The Nest; The Community | 15374 |
| Chapter III. The Pine Processionary: The Procession | 18308 |
| Chapter IV. The Pine Processionary: Meteoroogy | 9548 |
| Chapter VI. The Narbonne Lycosa: the Climbing-Instinct | 9933 |
| Chapter VII. The Spiders' Exodus | 8956 |
| Chapter I. The Harmas | 7022 |
| Chapter II. The Green Grasshopper | 19612 |
| Chapter III. The Empusa | 7856 |
| Chapter IV. The Capricorne | 6425 |
| Chapter V. The Burying Beetle: The Burying | 16046 |
| Chapter VI. The Burying Beetles: Experiments | 6318 |
| Chapter VII. The Bluebottle | 9878 |
| Chapter VIII. The Pine Processionary | 7365 |
| Chapter IX. The Spiders. The Narbonne Lycosa, or Black-Bellied Tarantula. The Burrow. | 7441 |
| Chapter X. The banded Epeira. Building the Web. | 7734 |
| Chapter XI. The Eumenes | 9275 |
| Chapter XII. The Osmiae. Their Habits | 5679 |
| Chapter XIII. The Glow-Worm | 14622 |
| Chapter XIV. The Cabbage Caterpillar | 11758 |
| Making a Bug Home | 14979 |