LIST OF ILLUSTRATIONS 



FIGURES IN THE TEXT 



FIG. PACB 



1. Flower of the Yellow Sage 4 



2. The Edelweiss 6 



3. "Folding" of Rock Strata 8 



4. A Man Extracting the Jewel from a Toad's Head 89 



5. The Palate of the Fossil Fis'h Lepidotus. . . 91 



6. Under-surface of the Frond of the Common 



Polypody Fern 96 



7. Germination of the Spore of a Fern ... 100 



8. Underside of the Prothallus of a Fern . . .101 



9. The Sperm-sacs and Egg-pits of the Prothallus 



of the Ferns 105 



10. The Relation of the Spore-producing Leaves or 



Leaflets of a Royal Fern, a Pine Tree, and an 

 Ordinary Flower 1 1 1 



11. The Indian Elephant 120 



12. The African Elephant 121 



13. The Crowns of Three "Grinders" or Molars of 



Elephants Compared 126 



14. Skeleton of the Indian Elephant . . . .137 



15. The Teeth in the Upper and Lower Jaw-bone of 



the Common Pig 140 



16. A Reconstruction of the Extinct American Mas- 



todon 142 



17. Skull and Restored Outline of the Head of the 



Long-jawed Extinct Elkphant cali-ed Tetra- 

 belodon . . 143 



Hi 



