LIST OF ILLUSTRATIONS. 



1. Cross-section of Vertebrate and Inver- 



tebrate 



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. Hydrse . . . . . 



9. Zoophytes . . .... 45 



10. Jelly-fish 45 



11. Amoebae . . . . . .46 



12. Foraminifera .... 



13. Lancelet 



14. Sea-squirt 54 



15. Bean in Section 



1 6. Leaf of Dead-nettle .... 



17. Tulip in Section 



18. Leaf of Tulip . . 



19. Yeast Plants 



20. Amceba 



21. Cell of a plant (Trctdescantia), 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 



28. Dodo 



29. Solitaire 89 



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 

 . IfO 

 . 102 

 . 102 

 . 102 

 . 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 

 Palseotherium (restored) . . . 153 

 Restoration of Anoplotherium . . 153 



