X CONTENTS. 







CHAPTER V. 



The Oak Structure of the plumule Wood Annual rings Medul- 

 lary rays Cambium Histology of the wood Pitted vessels Bordered 

 pits Tracheids Wood-fibres pp. 65 79. 



CHAPTER VI. 



The Oak Structure of the bark Epidermis Cuticle Cork Phel- 

 logen Secondary Phloem Physiology The arboreal habit Geotropism 

 Knight's experiment Stability of plant structures Turgidity 



pp. SO 93. 



CHAPTER VII. 



The leaf Foliage- and scale-leaves Phyllotaxy Forms of leaves 

 Stipules Dorsiventrality Histology Mesophyll Stomata and their 

 functions Transpiration Leaf-fall .... pp. 94 1O7. 



CHAPTER VIII. 



Beproduction Struggle for life Sexual and asexual reproduction 

 Pleurococcus, reproduction by cell-division Mucor, sporangia and spores 

 Conjugation, in Mucor and Spirogyra . . . pp. 1O8 117. 



CHAPTER IX. 



Eeproduction continued Alternation of generation The Fern 

 Sporophyte and oophyte Structure of the sporophyte of Pteris The 

 Ehizome Histology Vascular bundles . . . pp. 118 128. 



CHAPTER X. 



Eeproduction of the Fern continued Sporangia and spores Germi- 

 nation of the spores Prothallus Archegonium Antheridium Anthe- 

 rozoids attracted by malic acid Embryology . . pp. 129 139. 



CHAPTER XI. 



Spermaphytes or Phanerogams Natural orders, genera and species 

 The flower of Ranunculus Floral diagram Androecium and Gynoecium 

 The papilionaceous flower Fertilisation by means of insects 



pp. 140 154. 



