CONTENTS. 



INTRODUCTION. 



PAGB 



Definition of Zoology, and its Place among the Sciences 1 L 



Historical Sketch 14 



PART L— STRUCTURAL ZOOLOGY. 



CHAPTER I. 

 Minerals AND Organized Bodies Distinguished 19 



CHAPTER II. 

 Plants and Animals Distinguished 21 



CHAPTER III. 

 Relation between Minerals, Plants, and Animals 27 



CHAPTER IV. 

 Life 28 



CHAPTER V. 



Organization 30 



1. Cells 31 



2. Tissues 32 



3. Organs, and their Functions 41 



CHAPTER VI. 

 Nutrition 4.5 



CHAPTER VII. 

 The Food op Animals 47 



