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CONTENTS. 



Page 



Introduction 1 



Line of Perpetual Snow 2 



Altitude of the Earth '. . 5 



Depth of the Sea 12 



General Extension of the Vegetable Kingdom, 13 



Extension of the Acotyledones 17 



Of the Monocolyledones 22 



Of the Dicotyledones 29 



Of Orders not described in the Picture 43 



Of the Spreading of Animals 47 



Spreading of the Mammalia 51 



Of the Mammalia of the Seas . 51 



Spreading of Birds 66 



Spreading of the Amphibia 85 



Spreading of the Other Animals 87 



