| CHAPTER | | PAGE |
| I | [What Uncle Paul Proposes to Talk About] | 3 |
| II | [Teeth] | 6 |
| III | [The Different Shapes of Teeth] | 13 |
| IV | [Bats] | 24 |
| V | [The Bat’s Wings] | 36 |
| VI | [The Bat’s Senses of Smell and Hearing] | 43 |
| VII | [The Hedgehog] | 49 |
| VIII | [Hibernation] | 58 |
| IX | [The Mole] | 67 |
| X | [The Mole’s Nest—The Shrew-Mouse] | 77 |
| XI | [The Exploit of One-Eyed John] | 84 |
| XII | [Nocturnal Birds of Prey] | 90 |
| XIII | [Rats] | 93 |
| XIV | [Meadow-Mice—Hamsters—Dormice] | 106 |
| XV | [Horned Owls] | 114 |
| XVI | [Other Owls] | 122 |
| XVII | [The Eagle] | 129 |
| XVIII | [Hawks and Falcons] | 137 |
| XIX | [Kestrels, Kites, and Buzzards] | 144 |
| XX | [The Raven] | 154 |
| XXI | [The Crow] | 160 |
| XXII | [Woodpeckers] | 168 |
| XXIII | [More about Woodpeckers] | 177 |
| XXIV | [Climbers—The Hoopoe] [[vi]] | 184 |
| XXV | [The Cuckoo] | 188 |
| XXVI | [Shrikes] | 197 |
| XXVII | [The Titmouse] | 204 |
| XXVIII | [The Wren and the Kinglet] | 214 |
| XXIX | [Swallows] | 220 |
| XXX | [Swifts and Night-Jars] | 231 |
| XXXI | [The Bird’s Beak] | 240 |
| XXXII | [Insectivorous Birds] | 245 |
| XXXIII | [Granivorous Birds] | 253 |
| XXXIV | [Snakes and Lizards] | 260 |
| XXXV | [The Batrachians] | 273 |
| XXXVI | [The Toad] | 280 |
| XXXVII | [Instinct] | 290 |
| XXXVIII | [The Grain-Weevil] | 295 |
| XXXIX | [The Common Caterpillar] | 300 |
| XL | [Caterpillars at Table] | 304 |
| XLI | [Enemies of the Grapevine] | 310 |
| XLII | [Clever Mischief-Makers] | 315 |
| XLIII | [Nut-Weevils and Flower-Weevils] | 321 |
| XLIV | [Enemies of Clover] | 328 |
| XLV | [Cabbage-Eaters] | 333 |
| XLVI | [A Destructive Family] | 338 |
| XLVII | [Fliers with Wings of Gauze] | 343 |
| XLVIII | [Beneficent Parasites] | 349 |
| XLIX | [Apple-Eaters] | 358 |
| L | [Leaf-Rollers] | 363 |
| LI | [The Hop-Moth] | 368 |
| LII | [The Inchworm] | 374 |
| LIII | [Sap-Suckers] | 381 |
| LIV | [Queer Musical Instruments] | 385 |