LIST OF ILLUSTRATIONS. 



fk;. page 



The Common Frog ...... {Front.) 



1. The Common Frog 12 



2. Head of Embryo Frog {afier Parker) . . . .16 



3. Tadpoles .......... 17 



4. The Edible Frog ........ 22 



5. Clinotarsus {from Proc. Zool. Soc.) ..... 23 



6. The Common Toad ........ 25 



7. Poison Organ of a Fish {from Proc. Zool. Soc. ) . . .26 

 8 and 9. Serpent's Tooth . . . . . . -27 



10. Female Nototrema {after Giinther) ..... 29 



11. Pipa ........... 30 



12. Dactylethra 31 



13. Rhinophrynus {after Giinther) 32 



14. Skeleton of Flying Lizard 33 



15. The Flying Frog {from Wallace's "Malay Archipelago") . 35 



16. Amblystoma {from Proc. Zool. Soc.) .... .41 



17. Amphiuma 43 



18. Proteua . 43 



19. Siren ........... 45 



20. Menobranchus 45 



21. Axolotl .......... 47 



22. Cacilia 51 



23. Tooth of Labyrinthodont {after Owen) . , . -55 

 24- Skeleton of Ichthyosaurus . . . . -57 



25. Skeleton of Plesiosaurus . . . . . . '57 



26. Carapace of Tortoise . . . . . . . .61 



