- 1Preface
- 2I — Inhabitants of a Drop of Water
- 3II — The Sponges
- 4III — The Jellyfishes
- 5IV — The Sea Anemones
- 6V — The Corals
- 7VI — The Stone Lilies
- 8VII — The Stars of the Sea
- 9VIII — Ocean Hedgehogs
- 10IX — The Sea Cucumbers
- 11X — The Worms
- 12XI — The Two-Valved Shells
- 13XII — The Univalves
- 14XIII — The Cuttlefishes
- 15XIV — The Crustaceans
- 16XV — From Barnacles to Lobsters
- 17XVI — The Crabs
- 18XVII — Luminous Crabs
- 19XVIII — The Insects
- 20XIX — Lower Forms of Insects
- 21XX — The Spiders
- 22XXI — Some Six-Legged Insects
- 23XXII — Some Mimics
- 24XXIII — The Grasshoppers and Locusts
- 25XXIV — The Beetles
- 26XXV — The Bugs
- 27XXVI — Flies and Mosquitoes
- 28XXVII — The Butterflies and Moths
- 29XXVIII — The Ants
- 30XXIX — The Bees and Wasps
Half Hours with the Lower Animals
30 sections · Download EPUB