CONTENTS. 



PAOB 



Preface v 



Errata and Addenda . viii 



List of "Woodcuts xv 



List of General Works on Comparative Anatomy and Embryology ...... xxv 



INTRODUCTION 1 



I. On the Nature and Meaning of Comparative Anatomy 1 



II. Development and Structural Plan of the Vertebrate Body 2 



III. Classified List of the Principal Vertebrate Groups 13 



IV. Table showing the Gradual Distribution of the Vertebrata in Time ... 15 



SPECIAL PART. 



A. INTEGUMENT .16 



of Fishes : 17 



of Amphibians 18 



of Reptiles 20 



of Birds 20 



of Mammals 23 



Mammary Glands 27 



Bibliography . . .' , . . . . 28 



B. SKELETON 30 



I. DERMAL SKELETON ... 30 



II. EXDOSKELETON . . 33 



I. VERTEBRAL COLUMN 33 



of Fishes 34 



of Amphibians 39 



of Reptiles 42 



of Birds 44 



of Mammals . 46 



Bibliography 47 



II. RIBS 48 



of Fishes and Dipuoaiib 48 



of Amphibians ' 48 



of Reptiles, Birds, and Mammals 4M 



