CONTENTS. 



CHAPTER V. The Ligneous System, continued 137 



CHAPTER VI. Vegetation, or the Physiology of Plant Life 140 



CHAPTER VII. Fertilization 148 



CHAPTER VIH. Absorption; 145 



* By the root. 



a The root absorbs inorganic matter, from the soil, viz. 1, Water. 



2, Carbon. 



3, Mineral Salts. 

 b The rt. absorbs organic matter, from mould & refuse. 1, Nitrates. 



2, Ammonia. 



* By the green parts, from the Atmosphere, viz 1, Water. 



2, Oxygen. 

 3, Carbonic Acid. 

 4, Ammonia. 

 CHAPTER IX. Circulation; 147 



* Of the Crude Sap, upward through the wood, To the Leaves. 



* Of the True Sap, returning, downward, a to the incipient leaves. 



b to the cambium layer. 

 c to the medullary rays. 

 d to the roots. 

 CHAPTER X. Transpiration and Respiration 149 



* Transpiration through the Stomata, of. Water. 



* Respiration, ( Absorbing CO a . 



1, In the Green Parts, a in the sunshine < Retaining C. 



' Exhaling O. 



b in darkness Absorbing O. 



Consuming C. 

 Exhaling CO 2 . 



2, In the roots, flowers, &c., at all times Absorbing O. 



Consuming C. 

 Exhaling CO 2 . 



PART THIRD. SYSTEMATIC BOTANY 153 



CHAPTER I. General Principles of Classification 153 



CHAPTER II. The Natural System 155 



CHAPTER III. Botanical Analysis 160 



CHAPTER IV. Rules for Nomenclature 163 



INDEX AND GLOSSARY. . . 165 



