LIST OF ILLUSTRATIONS. 



1. Cross-section of Vertebrate and Inver- 



tebrate 39 



2. Joints of Lobster's Body . 



3. Diagram of Lobster's Structure 



4. ,, an Annulose Animal 



5. Section of Vertebrate .... 



6. Diagram of Mollusc .... 



7. Echinoderm, Ccelenter- 

 ate, and Protozoon .... 



8. Hydrae 



9. Zoophytes 45 



10. Jelly-fish 45 



n. Amoebae 



12. Foraminifera .... 



13. Lancelet 



14. Sea-squirt 



15. Bean in Section 57 



16. Leaf of Dead-nettle . 



17. Tulip in Section 57 



18. Leaf of Tulip .... 



19. Yeast Plants .... 



20. Amoeba 64 



21. Cell of a plant (Tradescantia), drawn 



at intervals, and showing changes 

 in the contained protoplasm . 



22. Various Cells 



23. Structure of Wallflower . 



24. Flower of Frog's-mouth 



25. Sentinel Crab 



26. Apteryx 



27. Penguin 88 



28. Dodo 



29. Solitaire .... 



30. Bones of Man's Arm . 



31. Bird's Wing 



32. Horse's Fore-limb 



33. Skeleton of Hind-limb of Horse 



34. Fore-feet and Hind-feet 



35. Spider Monkey . . 



36. Side View of Human Spine 



PAGE 

 . IOO 

 . IO2 

 . 102 

 , IO2 

 . 103 

 . 103 



Pig, Calf, Rabbit, Man . 



Perch 



Horizontal Tail of Whale . 



Fish showing an Equal-lobed Tail 



Thresher or Fox-Shark 



Skeleton of Salmon's Tail . 



Development of the Tail in Flounder 104 



Lancelet 105 



Lamprey and its Breathing Apparatus 106 

 Pterichthys : a Fossil Fish (Old Red 



Sandstone) 107 



Fore-limbs of various Vertebrate Ani- 

 mals 108 



Skeleton of Frog . . . .no 

 Feet of Marsupials . . . . in 

 The Ceratodus or Barramunda . . 113 

 Fin of Ceratodus . . . .114 

 Air-bladder of Carp . . . .115 

 Air-bladders of Fishes . . .116 

 Lepidosiren or Mud-fish . . .117 

 Development of Frog . . . .118 



Wallflower 131 



Stamens changing to Petals . . 132 

 Gooseberry Leaves becoming Scales . 132 

 Double-flowering Cherry . . .133 

 Tortoise .... . . 134 



Jaws of Vertebrata . . . -135 

 A Leaf and its Parts . . . . 136 



Leaf of Pea 137 



Tendrils of a Vine .... 137 

 Leaves of Smilax . . . .138 



Yellow Vetch 138 



Sloe and Rose, with Thorns and 



Prickles 139 



Strawberry 140 



Rose Fruit 141 



Section of Fig 141 



Skull of Dinoceras .... 152 

 Palaotherium (restored) . . .153 

 Restoration of Anoplotherium . . 153 



