CONTENTS. 



Preface 



List of Illustrations 



List of Plates 



List of Tables 



Part I. 



CHAPTER I. 



LIVING MATTER. 



Physical Properties of Protoplasm 

 Chemical Properties of Protoplasm 

 Primary Vital Functions of Protoplasm 

 Secondary Vital P\mctions of Protoplasm 

 Food of Animals 



Plants and Animals 



Transfer of Energy 



xvn 

 xxii 

 xxiii 



lo 

 II 



CHAPTER IL 

 COMPARATIVE PHYSIOLOGY. 



Alimentary System 

 Motor System 

 Sense Organs 

 Excretory System 

 Vascular System ... 

 Nervous System . . . 

 Skeletal System ... 

 Reproductive System 



15 

 15 

 16 

 18 

 19 

 19 

 20 

 21 



CHAPTER HI. 

 COMPARATIVE MORPHOLOGY. 



Animal Symmetry 

 Morphological Units 

 Structure and Function 

 Classification 



22 



23 

 26 



26 



