CONTENTS. 



CHAPTER V. The Ligneous System, continued 137 



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



CHAPTER VII. Fertilization 143 



CHAPTER VIII. Pollenization ; Cross-fertilization 145 



CHAPTER IX. Absorption .. 146 



* By the root. 



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



2, Carbon. 



8, Mineral Salts. 

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



2, Ammonia. 



* By the ^reen parts, from the Atmosphere, viz 1, Water. 



2, Oxygen. 

 3, Carbonic AcuL 

 i, Ammonia. 

 CHAPTER X. 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 XI. Transpiration and Respiration 150 



* Transpiration through the Stomata, of. Water. 



* Respiration, i Absorbing CO,. 



1, In the G reen Parts, a in the sunshine \ Retaining C. 



' Exhaling O. 



b in darkness Absorbing O. 



Consuming C. 

 Exhaling CO,. 



2, In the roots, flowers, &c., at aU timew Absorbing O. 



Consuming C. 

 Exhaling CO,. 



PAST THIRD. SYSTEMATIC BOTANY 153 



CHAPTER I. General Principles of Classification 153 



CHAPTER II. The Natural System 155 



CHAPTER HI. Botanical Analysis 160 



CHAPTER IV. Rules for Nomenclature 163 



INDEX AND GLOSSARY ... 1>55 



