CONTENTS 



PAGE 



PREFACE v 



PART I 

 CHAPTER I 



SCOPE OF THE SCIENCE OF BIOLOGY THE FROG ! PRELIMIN- 

 ARY SKETCH OF ITS STRUCTURE, LIFE-HISTORY, AND 

 VITAL FUNCTIONS I 



HINTS ON DISSECTION AND DRAWING 12 



CHAPTER II 

 THE FROG (continued) : GENERAL INTERNAL STRUCTURE . . 1.6 



PRACTICAL DIRECTIONS 31 



CHAPTER III 

 THE FROG (continued) : THE SKELETON 35 



PRACTICAL DIRECTIONS 53 



CHAPTER IV 

 THE FROG (continued) : THE JOINTS AND MUSCLES .... 55 



PRACTICAL DIRECTIONS 64 



CHAPTER V 



THE FROG (continued) : WASTE AND REPAIR OF SUBSTANCE 



THE DIGESTIVE ORGANS NUTRITION 66 



PRACTICAL DIRECTIONS 76 



IX 



