5. Diagrammatic Section of Earthworm 38 6. Diagram of a Gastrula 41 7. Diagram of a Trochosphere 42 8. Shells of Radiolarians (Polycystina) 47 9. A Coralline 58 10. Gorgonia 59 11. Corals 60 12. Marine Worms 73 13. A Centipede 77 14, 15. Shells of Barnacles 79, 80 16. Hermit Crabs 81 17. A Land Crab 82 18. A Sand-hopper 83 19. A Spider 84 20. Nest of Trap-door Spider 85 21. _Galeodes_ 86 22. A Tick 87 23. A Scorpion 88 24. Larvæ of Insects 90 25. Larva of the Bee 92 26. Ants 92 27. White Ants 93 28. Cocoons of Moths 94 29. A Moth and its Larva 95 30. Nest of a Gregarious Caterpillar 96 31. Development of an English Water-beetle (_Dytiscus_) 96 32. Insect Pests 97 33. Branchy Murex 102 34. Shell of the Common _Venus_ 104 35. Eggs of Molluscs 115 36. The Five-holed Sand-Cake 125 37. A Brittle-Star 129 38. A Sea-Cucumber 130 39. A Stone-Lily or Encrinite 131 40. A Feather-Star 132 41. Sections showing Position of the Vertebrate Notochord 139 42. Scales of a Sole 143 43. Tadpoles 153 44. Eggs of Reptiles 155 45. Skull of Kangaroo 162 46. Skull of Rodent 163 47. Slide with Rows of Sections for the Microscope 185 THE STORY OF ANIMAL LIFE CHAPTER I