X CONTENTS 



CHAPTER PAGE 



Crossopterygii — Order i. Chondrostei — Order 3. Holostei — Order 4. 

 Teleostei — Sub-class Dipnoi — General Consideration of the Fishes — 

 Locomotion — Coloration — Sound Producing Organs — Respiration — 

 Poison Glands — Skin — Blood — Lymph — Endocrine Glands — Lymph- 

 oid Tissue — Senses — Messmates and Associates — Parental Care — 

 Habitat — ^Temperature — Electric Organs — Phosphorescent Organs — 

 Adaptation of Fishes to their Environment — Economic Importance — 

 Positive — Negative — Migration in Fishes — Homing Instinct — Fossil 

 Relatives. 



XVI — Amphibia 265 



Classification — Apoda or Coecilians — Urodela or Caudata — Anura, 

 Salientia or Ecaudata — Characteristics — Natural History — Order i. 

 Apoda — Order 1. Urodela — Family i. Amphiumidae — Family 2. Sal- 

 amandridae — Family 3. Oroteidae — Family 4. Sirenidae — Order 3. 

 Anura — Family i. Pipidae, etc. — Family 2. Bufonidae — Family 3. 

 Ranidae, etc. — Type of Group, Rana pipiens, the Leopard Frog — Ex- 

 ternal Characters of the Frog — Skin — Muscle, Tendon, Fascia — Diges- 

 tive System — Circulatory System — Action of the Heart — Respiratory 

 System — Urinogenital System — Nervous System, Sense Organs — 

 General Consideration of the Amphibia — Distribution — External Anat- 

 omy — Skeleton — Muscles — Physiology — Digestive System — Respira- 

 tory System — Circulatory System — Urinogenital System — Embryology 

 — Parental Care — Parthenogenesis — Experimental Embryology — Re- 

 generation — Habitat — Fossil Relatives — Economic Importance — Posi- 

 tive — Poisonous Amphibians — Resistance of Amphibia to Poisons. 



XVII — Reptilia 302 



Amnion and Allantois — Classification — Characteristics — Natural His- 

 tory — Super-order 2. Chelonia — Type of the Group — The Slider 

 Terrapin — Super-order 6. Archosauria — Order Rhyncocephalia — Or- 

 der Crocodilia — Order Squamata — Sub-order Lacertilia — Sub-order 

 Ophidia — General Consideration of the Reptilia — Distribution — 

 Anatomy and Locomotion — Digestive System — Respiratory System — 

 Superficial Differences between the Crocodilia — Voice — Circulatory 

 System — Excretory System — Reproductive System — Care of the Young 

 — Nervous System and Sense Organs — Rattle of the Rattlesnake — 

 Poisonous Reptiles — Action of Snake Venom on the Digestive Tract — 

 Toxicity — Treatment of Snake Bite — Susceptibility of Snakes to Poison 

 — Do Mother Snakes Swallow their Young? — Some Superstitions that 

 Exist Regarding Snakes (Casselberry) — Fossil Relatives — Adapta- 

 tions of Reptilia — References on Reptilia. 



XVIII— AvEs 334 



Division A. The Ratitae — Characteristics — Tinamous — Division B, 

 The Carinatae — Characteristics — Classification — Order i. Pygopodes 

 — Order 2. Longipennes — Order3. Tubinares — Order 4. Steganopodes 

 — Order 5. Anseres — Order 6. Odontoglossae — Order 7. Herodiones — 



