CONTENTS 



HALF-VOL. I. 



INTRODUCTION 



Page 



On Scientific Method i 

 The Study of Animals: Subject-matter of Biology — Subdivisions of Biology — 



Ways of Studying Zoology 4 



Plan of Present Work 17 



CHAPTER I 



CLASSIFICATION— STRUCTURE OF MAN TAKEN AS A TYPE 



General Considerations: Symmetry: Limbs.— Structure of the Human 

 Body: — The Endoskeleton : Nutrition and Digestive Organs: Circulatory 

 Organs : Waste-removing Organs and Chemical Changes in the Body : Organs 

 of Movement: Nervous System and Sense-Organs: Common Origin of Sense- 

 Organs 21 



CHAPTER II 



ESSENTIAL CHARACTERS OF VERTEBRATE ANIMALS. STRUCTURE 

 AND CLASSIFICATION OF MAMMALS (Mammalia) 



Vertebrates and Invertebrates— Essential Characters of Vertebrates. 



MAMMALS (Mammalia) 

 Essential Characters. Classification — A, Eutheria ; B, Metatheria ; C, Prototheria. 



A. Eutheria 



Order i.— Man and Monkeys (Primates) 70 



Order 2.^Lemurs (Lemuroidea) 79 



Order 3.— Bats (Chiroptera) 81 



Order 4.— Insect-Eaters (Insectivora) 83 



Order 5. — Flesh-Eaters (Carnivora) 86 



(i) True or Terrestrial Carnivora: Fissipedes (Cats, Dogs, and Bears) 87 



(2) Aquatic Carnivora : Pinnipedes (Walruses, Sea-Lions, and True Seals) 98 



Order 6. — Whales and Porpoises (Cetacea) 99 



Order 7.— Sea-Cows (Sirenia) - loi 



