CONTENTS. 



Chapter I. 



Distinctions between animals, vegetables aiid fossils. 

 On the vital principle essential to the two former . , • , p. 1 



Chapter II. 

 Definition of natural history, and particularly botany. Ot 

 the general texture of plants p. 8 



Chapter III. 

 Of the cuticle or epidermis p. 13 



Chapter IV. 

 Of the cellular integument , p. 18 



Chapter V. 

 Of the bark p. 20 



Chapter VI. 

 Of the wood p. 24 



Chapter VII. 

 Of the medulla or pith p. 30 



Chapter VIII. 



Of the sap-vessels, and course of the sap; with 'Sir. Knight's 

 theory of vegetation p. 34 



Chapter IX. 

 Of the sap, and insensible perspiration ••••..••••.. p. 48 



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