TABLE OF CONTENTS. 



Page 



INTRODUCTION . . 17 



CHAPTER FIRST. 



THE SPHERE AND FUNDAMENTAL PRINCIPLES OF ZOOLOGY . 25 



CHAPTER SECOND. 



GENERAL PROPERTIES OF ORGANIZED BODIES .... 35 



SECTION I. 

 Organized and Unorganized Bodies 35 



SECTION II. 

 Elementary Structure of Organized Bodies 36 



SECTION III. 

 Differences between Animals and Plants 41 



CHAPTER THIRD. 



FUNCTIONS AND ORGANS OF ANIMAL LIFE . . . 44 



SECTION I. 

 Of the Nervous System and General Sensation 44 



