| Chapter I. The Harmas | 1039 |
| Biography of Jean-Henri Casimir Fabre | 3743 |
| Chapter II. Experiments | 873 |
| Chapter IV. More Enquiries Into Mason Bees | 1030 |
| Chapter VII. Some Reflections Upon Insect Psychology | 989 |
| Chapter XIV. Objections and Rejoinders | 706 |
| Chapter XII. Mathematical Memories: Newton's Binomial Theorem | 1938 |
| Chapter XIII. Mathematical Memories: My Little Table | 661 |
| Wild Life Gardening Tips | 1382 |
