CONTENTS 



PAET I.— AMPHIBIANS 



CBAFTEB PAGB 



Editor's Introduction tu 



Preface xv 



I. — What amphibian means 1 



II. — Limbs, toes, claws, wbbs, fdts, and tongues in 



AMFHIBIANS 7 



III. — Teeth, beaks, food, feeding habits, fasting, im- 

 prisonment, DRINKING, AND WATER RESERVOIRS 'iN 

 AMPHIBIANS 14 



rV. — Spring calls, vocal organs, hauitts, hatchinq, 



COURTSHIP, DRESS, COLORS, CHANGES, AND OTHER 

 ORNAMENTS ; WEAPONS, DEFENSE, SKIN SECRETIONS, 

 AND BLUFF, IN AMPHIBIANS 19 



V. — Eggs, spawning places, viviparous forms, and 



PECULIAR CARE OF YOUNG IN AMPHIBLANS . . 30 



VI. — Respiration, lungs, skin-breathing, circulation, 



HEARTS and LYMPH-HEARTS IN AMPHIBIANS . . 41 



VII. — Skin, smell, hearing, eyes, digestive tract . . 44 



■VTn.^SKELETON generally — BACK-BONE, RIBS, SKULL, MUS- 

 CLES, NERVES, REFLEX ACTION, TENACITY OF LIFE, 

 AND REPAIR Df AMPHIBIANS 50 



IX. — Fossils, keys, etc 58 



2 xvii 



