CONTENTS. 
CHAPTER I. 
SENERAL SKETCH OF THE EARLY PROGRESS IN NATURAL 
HISTORY 8 e e ° e e e r) ° e 
CHAPTER II. 
NOMENCLATURE AND CLASSIFICATION +» «e© © ec e 
CHAPTER III. 
CATEGORIES OF CLASSIFICATION +» «© «© oc e -« 
CHAPTER IV. 
CLASSIFICATION AND CREATION e ® ® ® ° ° 
CHAPTER V. 
DIFFERENT VIEWS RESPECTING ORDERS» + © e 
CHAPTER VI. 
GEADATION AMONG ANIMALS . . ee. sige 
CHAPTER VI! 
ANALOGOUS TIPTES . ; Paw a 2 - ° 
CHAPTER VIII. 
FAMILY CHARACTERISTICS dT te a ee a ae ee 
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73 
103 
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