CONTENTS. 



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CHAPTER I. 



3ENERA1, SKETCH OF THK EARLY PROGRESS IS NATURAL 



HISTORT ' 



CHAPTER II. 



NOMENCLATURE AND CLASSIFICATION 16 



CHAPTER III. 



CATEGORIES OF CLASSIFICATION M 



CHAPTER IV. 



CLASSIFICATION AND CREATION 41 



CHAP TER V. 



DIFFERENT VIEWS RESPECTING ORDRRS . ... 72 



CHAPTER vl. 



MADATTON AMONG ANTMALS ... ... 84 



CHAPTER VII 



UtALOGOTJS TTPES ... 101 



CHAPTER VIII. 



FAMILY CHARACTERISTICS 109 



