CONTENTS 



PAGE 



General Introduction ...... 7 



BOOK I. MORPHOLOGY 



Introduction 43 



CHAPTER 



I. The Nature of Alternation of Generations 46 



II. The Theory of Metamorphosis ... 65 



III. The Morphology of the Flower . . 85 



IV. Taxonomy no 



V. Palaeobotany, 1 860- 1 900 . . . .133 



BOOK II. THE ANATOMY OF PLANTS 



Introduction 157 



I. The Cell ........ 166 



II. The Differentiation of the Tissues . . 194 



III. The Study of the Cryptogams . . . 226 



BOOK III. THE PHYSIOLOGY OF PLANTS 



Introduction ....... 245 



I. The Development of Knowledge of the 

 Processes of Absorption of Water and 

 its Subsequent Transport in the Body of 



the Green Plant 247 



II. The Development of Knowledge of the 

 Appropriation of Carbon Dioxide by the 

 Plant 278 



