CONTENTS 



PREFACE 



Part I 

 CHAPTER I 



SCOPE OF THE SCIENCE OF BIOLOGY — THE FROG : PRELIMINARY 

 SKETCH OF ITS STRUCTURE, LIFE-HISTORY, AND VITAL 



FUNCTIONS • • I 



HINTS ON DISSECTION 12 



CHAPTER n 



THE FROG {continued) : GENERAL INTERNAL STRUCTURE . . l6- 

 PRACTICAL DIRECTIONS 3 1 



CHAPTER III 

 THE FROG (coitthmed) : 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> 



