CONTENTS 



PAGE 



Preface v 



Scheme of the Classification adopted in this Book . . . xi 



PART I. AMPHIBIA 



CHAPTER I 



Chaeacteks and Definition — Position of the Class Amphima in the 

 Phylum Yektebrata — Histokical Account of the Classification of 

 Amphibia 3 



CHAPTER II 



Skeleton of Urodela and Anura — Skin — Colour-changing Mechanism— 

 Poison-glands — Spinal Nerves — Respiratory Organs — Suppression 

 OF Lungs — Urino-genital Organs — Fecundation — Nursing Habits 

 — Development AND Metamorphosis 11 



CHAPTER III 

 Xeoteny — PlEgeneration — Temperature— Geographical Distribution . 63 



CHAPTER IV 



Stegocephali or Labyrinthodonts— Lissamphibia — Apoda ... 78 



CHAPTER V 



Lissamphibia {coxtlvued) — Urodela 94 



CHAPTER VI 



LlSSAMl'HIIUA (raXTlXVEIh — AnUP.A ........ 138 



