LIST OF ILLUSTRATIONS. 



FIG. PAGE. 



1. African Elephant . . . . . 2 



2. Skeleton of Mammoth ..... 3 



3. Foot of Elephant ..... 5 



4. Tooth of Mastodon ..... 6 



5. Indian Elephant ...... 8 



6. Teeth of Elephants ..... 10 



7. Skeleton of Mastodon ..... 15 



8. Tusks of Babirusa ..... 17 



9. Narwhal . . . . ... 19 



10. Skull of Chinese Water-Deer .... 20 



11. Skull and Tusk of Uintathere .... 22 



12. Cape Grolden Mole ..... 28 



13. Long-clawed Mole-Vole ..... 31 



14. Marsupial Mole ...... 33 



15. Common Porcupine ..... 37 



16. Hedgehog ...... 40 



17. Spiny Anteater ...... 44 



18. Foot of Artionyx ..... 51 



19. Skull of Protoceras ..... 53 



20. Bridled Dolphin ..... 57 



21. Teeth of Killer ...... 58 



22. Indian Porpoise ...... 62 



23. Pacific Black-Fish 63 



